Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Thank you Andy for explaining.
Actually my wrapper is very hard-core, meaning I don't use mapscript
(because I had to build it quickly and didn't have time to research
which was the best approach). Now I have more time and I'd like to tune
things up, so I will definitely start studying mapscript (If you have a
link to a good tutorial/function reference for it I am in your debt).
My wrapper just copied over a template map file, edited it (rewrites
some filters) and then it set
$ENV{'QUERY_STRING'} = $ENV{'QUERY_STRING'}.map=$file;
...and then called
print `/var/www/cgi-bin/mapserv`;
It's barbaric, I know, but it worked for me. :)
It will take a bit of rewrite to add fcgi support and mapscript, but in
the long run it will be more mantainable... :)
Thanks again,
Adrian
Andy Colson wrote:
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the
URL parameters, builds the map file (actually I only need to set
some filters in the map file, but the filters need to be built
after running some SQL queries with the passed in parameters).
After the map file is built, mapserv is called (as a shell script),
and the map gets sent to the user. Currently this wrapper is
written in perl - so it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like
to use mapserv as a fcgi process (or something faster than plain
cgi). My question is - how can I /should I build a wrapper around
mapserv that can customize the MAP file on the fly and run as a
fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some
sort of variables in the map file to set up my filters - but I
haven't seen an example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl.
And perl can do fast-cgi. Here is a little, ad-hoc, non-tested,
perl fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
Adrian Popa wrote:
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
You can load a map into memory (I assume you were already doing that).
You said ..perl.. receives the URL parameters ...and... builds the
map file.
I assume your perl does: use mapscript?
and at some point: my $map = new mapscript::mapObj( /maps/$xmap.map );
You kind of imbed mapserver into your perl script, and can call its
functions and what not. After you load the map you can do things to
it, in memory.
In my example above, I'm using the WMS features ($map-OWSDispatch),
but you can also generate an image:
my $img = $map-draw();
$img-save('x.jpg', $mapscript::MS_JPG);
-Andy
--
---
Adrian Popa
NOC Division
Network Engineer
Divizia Centrul National de Operare Retea
Departament Transport IP Metro
Compartiment IP Core Backbone
Phone: +40 21 400 3099
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[mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Hello everyone, I am currently using a wrapper around mapserv which receives the URL parameters, builds the map file (actually I only need to set some filters in the map file, but the filters need to be built after running some SQL queries with the passed in parameters). After the map file is built, mapserv is called (as a shell script), and the map gets sent to the user. Currently this wrapper is written in perl - so it's not terribly fast as a cgi process. While this approach works, it is terribly inefficient. I would like to use mapserv as a fcgi process (or something faster than plain cgi). My question is - how can I /should I build a wrapper around mapserv that can customize the MAP file on the fly and run as a fcgi process? Any ideas on where I should start? An example of such a wrapper? Also, I suspect I can send parameters to mapserver and use some sort of variables in the map file to set up my filters - but I haven't seen an example. Can someone point me to such a documentation? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Designing a wrapper around mapserv which can be used with fcgi
Thank you,
I will look into it. I guess through mapscript I can redefine the
parameters that get sent to mapserver? Or do I rewrite the whole map?
Andy Colson wrote:
Adrian Popa wrote:
Hello everyone,
I am currently using a wrapper around mapserv which receives the URL
parameters, builds the map file (actually I only need to set some
filters in the map file, but the filters need to be built after
running some SQL queries with the passed in parameters). After the
map file is built, mapserv is called (as a shell script), and the map
gets sent to the user. Currently this wrapper is written in perl - so
it's not terribly fast as a cgi process.
While this approach works, it is terribly inefficient. I would like
to use mapserv as a fcgi process (or something faster than plain
cgi). My question is - how can I /should I build a wrapper around
mapserv that can customize the MAP file on the fly and run as a
fcgi process?
Any ideas on where I should start? An example of such a wrapper?
Also, I suspect I can send parameters to mapserver and use some sort
of variables in the map file to set up my filters - but I haven't
seen an example. Can someone point me to such a documentation?
Thanks,
Adrian
Have you seen mapscript? You can use mapserver directly from perl.
And perl can do fast-cgi. Here is a little, ad-hoc, non-tested, perl
fcgi:
#!/usr/bin/perl
use strict;
use mapscript;
use FCGI;
my $request = FCGI::Request( );
while($request-Accept() = 0)
{
my($req, $x, $at, $xmap, $xpin, $sid, $y, $q);
$req = new mapscript::OWSRequest();
$req-loadParams();
$xmap = $req-getValueByName('map');
$xpin = $req-getValueByName('pin');
my $map = new mapscript::mapObj( /maps/$xmap.map );
if (! $map)
{
#print STDERR - Error loading map: $xmap.map\n;
print(Content-type: text/text\r\n\r\n);
print cant load $xmap.map;
$request-Finish();
next;
}
mapscript::msIO_installStdoutToBuffer();
$x = $map-OWSDispatch( $req );
if ($x)
{
print STDERR OWSDispatch: $x\n;
my $errObj = new mapscript::errorObj();
while ($errObj) {
print STDERR ERROR:
$errObj-{code}:$errObj-{message}:$errObj-{routine} \n;
$errObj = $errObj-next();
}
}
my $content_type =
mapscript::msIO_stripStdoutBufferContentType();
$x = mapscript::msIO_getStdoutBufferBytes();
print(Content-type: $content_type\r\n\r\n);
if (mapscript::msGetVersionInt() = 50500)
{
print $$x;
} else {
print $x;
}
mapscript::msIO_resetHandlers();
$request-Finish();
}
I'd recommend using mapserver 5.6.0.
-Andy
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[mapserver-users] Any ways to increase performance of Mapserver?
Hello, sorry for this noobie question, but I have been running mapserver as a cgi process and sometimes I need to make lots of calls to it to get the data I want. I have used TileCache to get the layers I need and which don't change over time and it speeds things up considerably. I was wondering - is it possible (and is it more efficient?) to run mapserver as fast-cgi? Would it increase speed? The mapserver in the cgi-bin directory is already a binary file - so I'm not sure if fast-cgi would do any good. Also, would I have any extra speed benefits if I make WMS queries instead of regular cgi queries? Thank you, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Any ways to increase performance of Mapserver?
Thanks, I'm compiling mapserver with fast-cgi support and see how that works out. Any idea if there is a difference in terms of speed if I make normal CGI queries vs WMS queries? Regards, Adrian Pavel Iacovlev wrote: Fast-cgi is one process that manages all your connections (acts more like apache module) cgi creates a new process for every connection so fast-cgi is faster and consumes less resources. The best performance you should get with tilecache serving TMS(If it's supported by your client, openlayers supports it), images are request directly so there is almost no overhead On Wed, Oct 21, 2009 at 10:42 AM, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello, sorry for this noobie question, but I have been running mapserver as a cgi process and sometimes I need to make lots of calls to it to get the data I want. I have used TileCache to get the layers I need and which don't change over time and it speeds things up considerably. I was wondering - is it possible (and is it more efficient?) to run mapserver as fast-cgi? Would it increase speed? The mapserver in the cgi-bin directory is already a binary file - so I'm not sure if fast-cgi would do any good. Also, would I have any extra speed benefits if I make WMS queries instead of regular cgi queries? Thank you, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Any ways to increase performance of Mapserver?
Hello again, I've compiled mapserver with fast cgi support and I've installed fastcgi on my apache. All seems ok, but I'm not sure if mapserver runs as fastcgi! I followed the instructions from here: http://mapserver.org/optimization/fastcgi.html Here's what I've added in the configuration: in httpd.conf (Apache2): LoadModule fastcgi_module modules/mod_fastcgi.so ... IfModule mod_fastcgi.c AddHandler fastcgi-script .fcgi FastCgiIpcDir /tmp/fastcgi FastCgiConfig -initial-env PROJ_LIB=/usr/share/proj -initial-env LD_LIBRARY_PATH=/usr/lib:/usr/local/lib:/usr/local/pgsql/lib -appConnTimeout 60 -idle-timeout 60 -init-start-delay 1 -minProcesses 2 -maxClassProcesses 30 -startDelay 5 /IfModule When httpd restarts, I get in the logs that fastcgi starts ok: [Wed Oct 21 15:43:04 2009] [notice] FastCGI: process manager initialized (pid 12570) I think I should somehow link mapserv to fastcgi - because I see no obvious connection. The script handler is only for .fcgi, but mapserver's compilation didn't generate any fcgi files... It seems to me, mapserver still runs as a cgi process. If I list the running processes when there are no queries to the webserver, there is no mapserv process. When I list the processes while doing queries, there are several mapserv processes running. Thanks, Adrian Adrian Popa wrote: Thanks, I'm compiling mapserver with fast-cgi support and see how that works out. Any idea if there is a difference in terms of speed if I make normal CGI queries vs WMS queries? Regards, Adrian Pavel Iacovlev wrote: Fast-cgi is one process that manages all your connections (acts more like apache module) cgi creates a new process for every connection so fast-cgi is faster and consumes less resources. The best performance you should get with tilecache serving TMS(If it's supported by your client, openlayers supports it), images are request directly so there is almost no overhead On Wed, Oct 21, 2009 at 10:42 AM, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello, sorry for this noobie question, but I have been running mapserver as a cgi process and sometimes I need to make lots of calls to it to get the data I want. I have used TileCache to get the layers I need and which don't change over time and it speeds things up considerably. I was wondering - is it possible (and is it more efficient?) to run mapserver as fast-cgi? Would it increase speed? The mapserver in the cgi-bin directory is already a binary file - so I'm not sure if fast-cgi would do any good. Also, would I have any extra speed benefits if I make WMS queries instead of regular cgi queries? Thank you, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Making labels appear less often on adjacent tiles
Yes, it's clear now. Thanks for the clarification. Regards, Adrian Thomas Bonfort wrote: simply put, when using that parameter the label point is chosen using geographical coordinates instead of pixel ones, which means that the label is anchored to the ground thus making it appear only once even if the polygon spans multiple rendered tiles. hope this is sufficiently clear regards, thomas www.camptocamp.com +33 5 16 57 01 02 On Wed, Oct 14, 2009 at 14:45, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Thank you, Thomas, That worked beautifully. I am curious, though - how does it work? I mean, the requests are independent and as far as I can see there is no state on the server telling him some request are part of a larger request. So, how can it know on which tile to show the label and on which tile not to show the label? Thanks Thomas Bonfort wrote: yes you can do that, by adding a PROCESSING LABEL_NO_CLIP=ON to the layers where you don't want repeated labels. regards, thomas www.camptocamp.com +33 5 16 57 01 02 On Wed, Oct 14, 2009 at 13:29, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello everyone, I'm sure this subject has been discussed before, but I wasn't able to find relevant information so far, so please point me in the right direction please. I have switched to WMS and I am now getting several tiles from my mapserver for one request (this is desired) (actually there are multiple WMS requests for a specific area). I have no label clipping issues, so that's fine also. The thing is, for example, if I zoom over a town and the town is split between several tiles, I will get a label on each tile for the town name. Previously, when I was requesting a large tile from my mapserver (single-tile), this wouldn't happen. I don't want to set the label to not be visible below a certain resolution, because that way I wouldn't get any labels below a point. So, my question is: Is it possible to show the label only once per feature, not once per request? My guess is not (because I wouldn't know how to implement it), but I'm curious if there's a solution... Regards, Adrian -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Making labels appear less often on adjacent tiles
Hello everyone, I'm sure this subject has been discussed before, but I wasn't able to find relevant information so far, so please point me in the right direction please. I have switched to WMS and I am now getting several tiles from my mapserver for one request (this is desired) (actually there are multiple WMS requests for a specific area). I have no label clipping issues, so that's fine also. The thing is, for example, if I zoom over a town and the town is split between several tiles, I will get a label on each tile for the town name. Previously, when I was requesting a large tile from my mapserver (single-tile), this wouldn't happen. I don't want to set the label to not be visible below a certain resolution, because that way I wouldn't get any labels below a point. So, my question is: Is it possible to show the label only once per feature, not once per request? My guess is not (because I wouldn't know how to implement it), but I'm curious if there's a solution... Regards, Adrian -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Making labels appear less often on adjacent tiles
Thank you, Thomas, That worked beautifully. I am curious, though - how does it work? I mean, the requests are independent and as far as I can see there is no state on the server telling him some request are part of a larger request. So, how can it know on which tile to show the label and on which tile not to show the label? Thanks Thomas Bonfort wrote: yes you can do that, by adding a PROCESSING LABEL_NO_CLIP=ON to the layers where you don't want repeated labels. regards, thomas www.camptocamp.com +33 5 16 57 01 02 On Wed, Oct 14, 2009 at 13:29, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello everyone, I'm sure this subject has been discussed before, but I wasn't able to find relevant information so far, so please point me in the right direction please. I have switched to WMS and I am now getting several tiles from my mapserver for one request (this is desired) (actually there are multiple WMS requests for a specific area). I have no label clipping issues, so that's fine also. The thing is, for example, if I zoom over a town and the town is split between several tiles, I will get a label on each tile for the town name. Previously, when I was requesting a large tile from my mapserver (single-tile), this wouldn't happen. I don't want to set the label to not be visible below a certain resolution, because that way I wouldn't get any labels below a point. So, my question is: Is it possible to show the label only once per feature, not once per request? My guess is not (because I wouldn't know how to implement it), but I'm curious if there's a solution... Regards, Adrian -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] mapserver produces interlaced PNGs even if I configured the map to output noninterlaced PNGs
Hello all, My goal is to setup tilecache (which is proving to be a real pain), and so far I've noticed that even if I configured my map to generate noninterlaced PNGs (instructions here: http://www.mapserver.org/faq.html#why-doesn-t-pil-python-imaging-library-open-my-pngs), it still generates interlaced PNGs. Here is my outputformat (the only one defined) in my map: OUTPUTFORMAT NAME 'AGG' DRIVER AGG/PNG IMAGEMODE RGBA TRANSPARENT ON FORMATOPTION INTERLACE=OFF END The parameters that get sent to my mapserver instance are: BBOX|2896046.12635,5831228.011975,2935181.884825,5870363.77045| EXCEPTIONS |application/vnd.ogc.se_inimage| FORMAT |png| HEIGHT |256| LAYERS |Judete,RuralSate,Rural,Urban,roads,roads-buc,buildings,GranitaJudete| MAP |/var/www/html/map/rtc_base.map| MAP_IMAGETYPE |agg| MAXEXTENT |left-bottom=(20.26,43.16) right-top=(29.7,48.46)| MAXRESOLUTION |156543| REQUEST |GetMap| SERVICE |WMS| SRS |EPSG:900913| STYLES TRANSITIONEFFECT|resize| TRANSPARENT |false| UNITS |m| VERSION |1.1.1| WIDTH |256| I'm not sure if MAP_IMAGETYPE=agg is the one which selects the outputformat or not, but the map seems to be rendered with AGG (I could be wrong, of course). So, what am I missing here? Is there another parameter that should be sent to mapserver to select the outputformat? By the way, the image file generated has these properties: img.png: PNG image, 256 x 256, 8-bit colormap, interlaced Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] mapserver produces interlaced PNGs even if I configured the map to output noninterlaced PNGs
Hmm, I did that, and kept the same query parameters and I get this error: msPostMapParseOutputFormatSetup(): General error message. Unable to select IMAGETYPE `agg'. So, it seems that imagetype is useful after all. Guillaume Sueur wrote: hi, rename your OUTPUTFORMAT to 'PNG' for it to be used when asking for png format. Guillaume Le mercredi 14 octobre 2009 à 16:36 +0300, Adrian Popa a écrit : Hello all, My goal is to setup tilecache (which is proving to be a real pain), and so far I've noticed that even if I configured my map to generate noninterlaced PNGs (instructions here: http://www.mapserver.org/faq.html#why-doesn-t-pil-python-imaging-library-open-my-pngs), it still generates interlaced PNGs. Here is my outputformat (the only one defined) in my map: OUTPUTFORMAT NAME 'AGG' DRIVER AGG/PNG IMAGEMODE RGBA TRANSPARENT ON FORMATOPTION INTERLACE=OFF END The parameters that get sent to my mapserver instance are: BBOX 2896046.12635,5831228.011975,2935181.884825,5870363.77045 EXCEPTIONS application/vnd.ogc.se_inimage FORMAT png HEIGHT 256 LAYERS Judete,RuralSate,Rural,Urban,roads,roads-buc,buildings,GranitaJudete MAP /var/www/html/map/rtc_base.map MAP_IMAGETYPE agg MAXEXTENT left-bottom=(20.26,43.16) right-top=(29.7,48.46) MAXRESOLUTION 156543 REQUEST GetMap SERVICE WMS SRS EPSG:900913 STYLES TRANSITIONEFFECT resize TRANSPARENT false UNITS m VERSION 1.1.1 WIDTH 256 I'm not sure if MAP_IMAGETYPE=agg is the one which selects the outputformat or not, but the map seems to be rendered with AGG (I could be wrong, of course). So, what am I missing here? Is there another parameter that should be sent to mapserver to select the outputformat? By the way, the image file generated has these properties: img.png: PNG image, 256 x 256, 8-bit colormap, interlaced Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] mapserver produces interlaced PNGs even if I configured the map to output noninterlaced PNGs
Thanks Jukka, I added MIMETYPE image/png2 to my OUTPUTFORMAT and I called with FORMAT=image/png2, and now, the PNGs are non-interlaced! I don't really understand what the difference is, but I'm glad it works. Thanks again... now I only have to figure out why tilecache isn't working yet... Rahkonen Jukka wrote: Hi, It is possible that rendering does not go through agg. I am not sure, but perhaps by adding MIMETYPE image/png2 to outputformat and calling either FORMAT=image/png2 or FORMAT=image/png you could do some comparisons. -Jukka Rahkonen- *L�hett�j�:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *Puolesta *Adrian Popa *L�hetetty:* 14. lokakuuta 2009 16:36 *Vastaanottaja:* mapserver-users@lists.osgeo.org *Aihe:* [mapserver-users] mapserver produces interlaced PNGs even if I configured the map to output noninterlaced PNGs Hello all, My goal is to setup tilecache (which is proving to be a real pain), and so far I've noticed that even if I configured my map to generate noninterlaced PNGs (instructions here: http://www.mapserver.org/faq.html#why-doesn-t-pil-python-imaging-library-open-my-pngs), it still generates interlaced PNGs. Here is my outputformat (the only one defined) in my map: OUTPUTFORMAT NAME 'AGG' DRIVER AGG/PNG IMAGEMODE RGBA TRANSPARENT ON FORMATOPTION INTERLACE=OFF END The parameters that get sent to my mapserver instance are: BBOX|2896046.12635,5831228.011975,2935181.884825,5870363.77045| EXCEPTIONS |application/vnd.ogc.se_inimage| FORMAT |png| HEIGHT |256| LAYERS |Judete,RuralSate,Rural,Urban,roads,roads-buc,buildings,GranitaJudete| MAP |/var/www/html/map/rtc_base.map| MAP_IMAGETYPE |agg| MAXEXTENT |left-bottom=(20.26,43.16) right-top=(29.7,48.46)| MAXRESOLUTION |156543| REQUEST |GetMap| SERVICE |WMS| SRS |EPSG:900913| STYLES TRANSITIONEFFECT|resize| TRANSPARENT |false| UNITS |m| VERSION |1.1.1| WIDTH |256| I'm not sure if MAP_IMAGETYPE=agg is the one which selects the outputformat or not, but the map seems to be rendered with AGG (I could be wrong, of course). So, what am I missing here? Is there another parameter that should be sent to mapserver to select the outputformat? By the way, the image file generated has these properties: img.png: PNG image, 256 x 256, 8-bit colormap, interlaced Thanks, Adrian -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] msProcessProjection(): Projection library error. no system list, errno: 13
Update: I have symlinked the null file to epsg, and now strace shows that the file is read, but I still get the same error when trying to call WMS GetMap... :( [r...@terra map]# ls -l /usr/share/proj/null lrwxrwxrwx 1 root root 20 Oct 13 10:50 /usr/share/proj/null - /usr/share/proj/epsg Adrian Popa wrote: Thank you for your reply Lars, my info is inline. Lars Lingner wrote: Adrian Popa schrieb: Hmm, any idea on this one? How can I find out if proj is trying to read the epsg file? I'm thinking of using strace to see what files it tries to open, but I don't know what syntax to use to try to project from 4326 to 900913... Just to clarify: - Your data is in wgs84 (epsg:4326) Yes - you want to serve mercator projection (epsg:900913) Yes (the frontend will be OpenLayers (through TileCache) A few questions: - are there any errors in the capabilities document? No, it looks ok. I can post it if you want, but it's a bit large. It outputs an XML which describes the layers, projections and some settings from the map file. I haven't seen another working GetCapabilites file, so I can't tell if it's missing something... - did you tried to use mapserver logging (MS_ERRORFILE) and high debug level (DEBUG 5) Here is the output after enabling MS_ERRORFILE and DEBUG 5 at layer level and at map level: [Tue Oct 13 10:36:36 2009].954434 msProcessProjection(): Projection library error. no system list, errno: 13 [Tue Oct 13 10:36:36 2009].954562 mapserv request processing time (msLoadMap not incl.): 0.000s [Tue Oct 13 10:36:36 2009].954584 msFreeMap(): freeing map at 0x8496ac8. [Tue Oct 13 10:36:36 2009].954651 freeLayer(): freeing layer at 0x84a9378. - could you try to use shp2img, maybe this gives you a bit more information? [r...@terra map]# shp2img -o /tmp/out.png -m /var/www/html/map/rtc_base.map -e 20.258 43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete This works just fine (however it doesn't use WMS!). The image displayed is correct (and it is projected in mercator projection!). If I run: [r...@terra map]# strace shp2img -o /tmp/out.png -m /var/www/html/map/rtc_base.map -e 20.258 43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete 21 | grep epsg .. I don't get any matches on the epsg file that is supposed to be used by proj. Looking through the output of strace, I can see it tries to open some proj-related files... open(/usr/share/proj/proj_def.dat, O_RDONLY) = -1 ENOENT (No such file or directory) open(/usr/share/proj/null, O_RDONLY) = -1 ENOENT (No such file or directory) I wonder why it tries to open a file called null - maybe an error? - did you compile MapServer and the dependencies by yourself? Yes. These are my configure arguments: ./configure --with-freetype --with-png --with-agg=../agg-2.5 --with-proj --with-ogr --with-gdal --with-xml2 --with-wfs --with-wcs \ --with-wmsclient --with-wfsclient --with-postgis --with-threads --with-sos --with-mygis --with-geos --with-tiff - what MapServer version do you use? version 5.4.1 - do you have Proj4 installed? (OpenLayers doesn't use the same lib, it uses the javascript lib) [adri...@terra mapserver]$ rpm -qa | grep proj proj-devel-4.5.0-1.fc5 proj-4.5.0-1.fc5 I hope it does not look like keeping you busy, but without further information its difficult to help. Your help is very much appreciated. Any idea is a good one because it might get me out of this predicament. :) Regards, Adrian P.S. If I understand how projections work - if I call the projection with it's EPSG code it needs the epsg file to get the details about the projection. In my layers I'm using the EPSG definition instead the EPSG code to define my projections. If I switch to codes it won't work (I have tried a few months ago). So, to me, it seems mapserver (or proj) can't get the definitions from the epsg file (maybe because it searches for the wrong file). I will try to create the file and try again. I'll let you know how it works. Lars ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] msProcessProjection(): Projection library error. no system list, errno: 13
Thank you for your reply Lars, my info is inline. Lars Lingner wrote: Adrian Popa schrieb: Hmm, any idea on this one? How can I find out if proj is trying to read the epsg file? I'm thinking of using strace to see what files it tries to open, but I don't know what syntax to use to try to project from 4326 to 900913... Just to clarify: - Your data is in wgs84 (epsg:4326) Yes - you want to serve mercator projection (epsg:900913) Yes (the frontend will be OpenLayers (through TileCache) A few questions: - are there any errors in the capabilities document? No, it looks ok. I can post it if you want, but it's a bit large. It outputs an XML which describes the layers, projections and some settings from the map file. I haven't seen another working GetCapabilites file, so I can't tell if it's missing something... - did you tried to use mapserver logging (MS_ERRORFILE) and high debug level (DEBUG 5) Here is the output after enabling MS_ERRORFILE and DEBUG 5 at layer level and at map level: [Tue Oct 13 10:36:36 2009].954434 msProcessProjection(): Projection library error. no system list, errno: 13 [Tue Oct 13 10:36:36 2009].954562 mapserv request processing time (msLoadMap not incl.): 0.000s [Tue Oct 13 10:36:36 2009].954584 msFreeMap(): freeing map at 0x8496ac8. [Tue Oct 13 10:36:36 2009].954651 freeLayer(): freeing layer at 0x84a9378. - could you try to use shp2img, maybe this gives you a bit more information? [r...@terra map]# shp2img -o /tmp/out.png -m /var/www/html/map/rtc_base.map -e 20.258 43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete This works just fine (however it doesn't use WMS!). The image displayed is correct (and it is projected in mercator projection!). If I run: [r...@terra map]# strace shp2img -o /tmp/out.png -m /var/www/html/map/rtc_base.map -e 20.258 43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete 21 | grep epsg .. I don't get any matches on the epsg file that is supposed to be used by proj. Looking through the output of strace, I can see it tries to open some proj-related files... open(/usr/share/proj/proj_def.dat, O_RDONLY) = -1 ENOENT (No such file or directory) open(/usr/share/proj/null, O_RDONLY) = -1 ENOENT (No such file or directory) I wonder why it tries to open a file called null - maybe an error? - did you compile MapServer and the dependencies by yourself? Yes. These are my configure arguments: ./configure --with-freetype --with-png --with-agg=../agg-2.5 --with-proj --with-ogr --with-gdal --with-xml2 --with-wfs --with-wcs \ --with-wmsclient --with-wfsclient --with-postgis --with-threads --with-sos --with-mygis --with-geos --with-tiff - what MapServer version do you use? version 5.4.1 - do you have Proj4 installed? (OpenLayers doesn't use the same lib, it uses the javascript lib) [adri...@terra mapserver]$ rpm -qa | grep proj proj-devel-4.5.0-1.fc5 proj-4.5.0-1.fc5 I hope it does not look like keeping you busy, but without further information its difficult to help. Your help is very much appreciated. Any idea is a good one because it might get me out of this predicament. :) Regards, Adrian P.S. If I understand how projections work - if I call the projection with it's EPSG code it needs the epsg file to get the details about the projection. In my layers I'm using the EPSG definition instead the EPSG code to define my projections. If I switch to codes it won't work (I have tried a few months ago). So, to me, it seems mapserver (or proj) can't get the definitions from the epsg file (maybe because it searches for the wrong file). I will try to create the file and try again. I'll let you know how it works. Lars ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] msProcessProjection(): Projection library error.no system list, errno: 13
Hello Jukka, I have added the PROJ_LIB statement in the map file. Unfortunately, nothing changes... strace still shows that shp2img tries to read /usr/share/proj/null (and it succeeds). I have added the line with the google projection to the end of the epsg (and null) file. I still get the same error. Is there any way I can call proj + some parameters to ask for a projection between WGS84 to Google? I'd like to close in on the problem. Thanks, Adrian Rahkonen Jukka wrote: Hi, First, it is possible to tell Mapserver where to find the projection files in the mapfile, in MAP section. Excerpt from http://www.mapserver.org/mapfile/map.html PROJ_LIB [path] The CONFIG parameter can be used to define the location of your EPSG files for the Proj.4 library. Setting the [key] to PROJ_LIB and the [value] to the location of your EPSG files will force PROJ.4 to use this value. Using CONFIG allows you to avoid setting environment variables to point to your PROJ_LIB directory. Here are some examples: Unix CONFIG PROJ_LIB /usr/local/share/proj/ Second, Mapserver epsg file ships without Google projection. Without adding the definition it is impossible to refer to epsg:900913 projection with the code number. Have you added corresponding line to the epsg file, whitch is usually in /usr/share/proj/epsg? 900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null mailto:+nadgri...@null +no_defs Put it on the first line so Mapserver finds it immediately without a need to go through the whole list. -Jukka Rahkonen- *L�hett�j�:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *Puolesta *Adrian Popa *L�hetetty:* 13. lokakuuta 2009 10:55 *Vastaanottaja:* Lars Lingner *Kopio:* mapserver-users@lists.osgeo.org *Aihe:* Re: [mapserver-users] msProcessProjection(): Projection library error.no system list, errno: 13 Update: I have symlinked the null file to epsg, and now strace shows that the file is read, but I still get the same error when trying to call WMS GetMap... :( [r...@terra map]# ls -l /usr/share/proj/null lrwxrwxrwx 1 root root 20 Oct 13 10:50 /usr/share/proj/null - /usr/share/proj/epsg Adrian Popa wrote: Thank you for your reply Lars, my info is inline. Lars Lingner wrote: Adrian Popa schrieb: Hmm, any idea on this one? How can I find out if proj is trying to read the epsg file? I'm thinking of using strace to see what files it tries to open, but I don't know what syntax to use to try to project from 4326 to 900913... Just to clarify: - Your data is in wgs84 (epsg:4326) Yes - you want to serve mercator projection (epsg:900913) Yes (the frontend will be OpenLayers (through TileCache) A few questions: - are there any errors in the capabilities document? No, it looks ok. I can post it if you want, but it's a bit large. It outputs an XML which describes the layers, projections and some settings from the map file. I haven't seen another working GetCapabilites file, so I can't tell if it's missing something... - did you tried to use mapserver logging (MS_ERRORFILE) and high debug level (DEBUG 5) Here is the output after enabling MS_ERRORFILE and DEBUG 5 at layer level and at map level: [Tue Oct 13 10:36:36 2009].954434 msProcessProjection(): Projection library error. no system list, errno: 13 [Tue Oct 13 10:36:36 2009].954562 mapserv request processing time (msLoadMap not incl.): 0.000s [Tue Oct 13 10:36:36 2009].954584 msFreeMap(): freeing map at 0x8496ac8. [Tue Oct 13 10:36:36 2009].954651 freeLayer(): freeing layer at 0x84a9378. - could you try to use shp2img, maybe this gives you a bit more information? [r...@terra map]# shp2img -o /tmp/out.png -m /var/www/html/map/rtc_base.map -e 20.258 43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete This works just fine (however it doesn't use WMS!). The image displayed is correct (and it is projected in mercator projection!). If I run: [r...@terra map]# strace shp2img -o /tmp/out.png -m /var/www/html/map/rtc_base.map -e 20.258 43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete 21 | grep epsg .. I don't get any matches on the epsg file that is supposed to be used by proj. Looking through the output of strace, I can see it tries to open some proj-related files... open(/usr/share/proj/proj_def.dat, O_RDONLY) = -1 ENOENT (No such file or directory) open(/usr/share/proj/null, O_RDONLY) = -1 ENOENT (No such file or directory) I wonder why it tries to open a file called null - maybe an error? - did
[mapserver-users] msProcessProjection(): Projection library error. no system list, errno: 13
Hello all! I'm trying to convert my regular MAP file to be WMS compliant and to be able to get the contents through WMS requests. I am following the tutorial here: http://mapserver.org/ogc/wms_server.html. The GetCapabilities request works: http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.mapSERVICE=WMSVERSION=1.1.1REQUEST=GetCapabilities The GetMap request fails: http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.mapSERVICE=WMSVERSION=1.1.1REQUEST=GetMapLAYERS=GranitaJudeteSTYLES=SRS=EPSG:4326 The output returned is: ?xml version='1.0' encoding=ISO-8859-1 standalone=no ? !DOCTYPE ServiceExceptionReport SYSTEM http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd; ServiceExceptionReport version=1.1.1 ServiceException msProcessProjection(): Projection library error. no system list, errno: 13 /ServiceException /ServiceExceptionReport The Map file has the following definitions: MAP ... WEB ... METADATA ... wms_title Basic Map wms_attribution_title Basic Map wms_srs EPSG:900913 END END PROJECTION #spherical mercator/google +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs END LAYER NAME GranitaJudete ... METADATA wms_title GranitaJudete wms_srs EPSG:4326 END PROJECTION #WGS84 +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs END ... END END The thing is (if I remember correctly) my mapserver doesn't really recognize projections by their EPSG code, but it works if I supply the other definition. I'm not sure how to correct that and I don't know if this is the cause. I've looked into PROJ4 source code and I found refrences to errorcode -13 in this function: PJ *pj_latlong_from_proj( PJ *pj_in ) from src/pj_utils.c. It returns errorcode -13 if can't find datum, ellps or a. I'm not sure where to go from here, as google doesn't find this particular error code... Thanks -- --- Adrian Popa ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] msProcessProjection(): Projection library error. no system list, errno: 13
Hello, Thanks for your answers. I had already included the google EPSG in the proj main file: [r...@terra map]# cat /usr/share/proj/epsg | grep 900913 900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs I have added wms_srs EPSG:900913 EPSG:4326 to my map file, but the GetMap request fails for both SRS 900913 and SRS 4326 with the same error message. My linux version is Fedora Core 5. I'm not sure if the location of the epsg is correct, but it works ok with openlayers (running on the same server). Regards, Adrian Milo van der Linden wrote: Hello Adrian, Change the METADATA section of your mapfile from: wms_srs EPSG:900913 to wms_srs EPSG:900913 EPSG:4326 EPSG:whatever projections you want to expose the wms_srs parameter for the MAP is a collection of space separated EPSG codes that tells the wms-server what projections it supports. Please use this space seperated list ONLY at the MAP section, when in Layers, wms_srs needs to be a single EPSG-code that is native to the particular layer Good luck! Milo van der Linden Adrian Popa schreef: Hello all! I'm trying to convert my regular MAP file to be WMS compliant and to be able to get the contents through WMS requests. I am following the tutorial here: http://mapserver.org/ogc/wms_server.html. The GetCapabilities request works: http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.mapSERVICE=WMSVERSION=1.1.1REQUEST=GetCapabilities The GetMap request fails: http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.mapSERVICE=WMSVERSION=1.1.1REQUEST=GetMapLAYERS=GranitaJudeteSTYLES=SRS=EPSG:4326 The output returned is: ?xml version='1.0' encoding=ISO-8859-1 standalone=no ? !DOCTYPE ServiceExceptionReport SYSTEM http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd; ServiceExceptionReport version=1.1.1 ServiceException msProcessProjection(): Projection library error. no system list, errno: 13 /ServiceException /ServiceExceptionReport The Map file has the following definitions: MAP ... WEB ... METADATA ... wms_title Basic Map wms_attribution_title Basic Map wms_srs EPSG:900913 END END PROJECTION #spherical mercator/google +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs END LAYER NAME GranitaJudete ... METADATA wms_title GranitaJudete wms_srs EPSG:4326 END PROJECTION #WGS84 +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs END ... END END The thing is (if I remember correctly) my mapserver doesn't really recognize projections by their EPSG code, but it works if I supply the other definition. I'm not sure how to correct that and I don't know if this is the cause. I've looked into PROJ4 source code and I found refrences to errorcode -13 in this function: PJ *pj_latlong_from_proj( PJ *pj_in ) from src/pj_utils.c. It returns errorcode -13 if can't find datum, ellps or a. I'm not sure where to go from here, as google doesn't find this particular error code... Thanks ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] msProcessProjection(): Projection library error. no system list, errno: 13
Hmm, any idea on this one? How can I find out if proj is trying to read the epsg file? I'm thinking of using strace to see what files it tries to open, but I don't know what syntax to use to try to project from 4326 to 900913... Adrian Popa wrote: Hello, Thanks for your answers. I had already included the google EPSG in the proj main file: [r...@terra map]# cat /usr/share/proj/epsg | grep 900913 900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs I have added wms_srs EPSG:900913 EPSG:4326 to my map file, but the GetMap request fails for both SRS 900913 and SRS 4326 with the same error message. My linux version is Fedora Core 5. I'm not sure if the location of the epsg is correct, but it works ok with openlayers (running on the same server). Regards, Adrian Milo van der Linden wrote: Hello Adrian, Change the METADATA section of your mapfile from: wms_srs EPSG:900913 to wms_srs EPSG:900913 EPSG:4326 EPSG:whatever projections you want to expose the wms_srs parameter for the MAP is a collection of space separated EPSG codes that tells the wms-server what projections it supports. Please use this space seperated list ONLY at the MAP section, when in Layers, wms_srs needs to be a single EPSG-code that is native to the particular layer Good luck! Milo van der Linden Adrian Popa schreef: Hello all! I'm trying to convert my regular MAP file to be WMS compliant and to be able to get the contents through WMS requests. I am following the tutorial here: http://mapserver.org/ogc/wms_server.html. The GetCapabilities request works: http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.mapSERVICE=WMSVERSION=1.1.1REQUEST=GetCapabilities The GetMap request fails: http://terra/cgi-bin/mapserv?map=/var/www/html/map/rtc_base.mapSERVICE=WMSVERSION=1.1.1REQUEST=GetMapLAYERS=GranitaJudeteSTYLES=SRS=EPSG:4326 The output returned is: ?xml version='1.0' encoding=ISO-8859-1 standalone=no ? !DOCTYPE ServiceExceptionReport SYSTEM http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd; ServiceExceptionReport version=1.1.1 ServiceException msProcessProjection(): Projection library error. no system list, errno: 13 /ServiceException /ServiceExceptionReport The Map file has the following definitions: MAP ... WEB ... METADATA ... wms_title Basic Map wms_attribution_title Basic Map wms_srs EPSG:900913 END END PROJECTION #spherical mercator/google +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs END LAYER NAME GranitaJudete ... METADATA wms_title GranitaJudete wms_srs EPSG:4326 END PROJECTION #WGS84 +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs END ... END END The thing is (if I remember correctly) my mapserver doesn't really recognize projections by their EPSG code, but it works if I supply the other definition. I'm not sure how to correct that and I don't know if this is the cause. I've looked into PROJ4 source code and I found refrences to errorcode -13 in this function: PJ *pj_latlong_from_proj( PJ *pj_in ) from src/pj_utils.c. It returns errorcode -13 if can't find datum, ellps or a. I'm not sure where to go from here, as google doesn't find this particular error code... Thanks ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Tips on generating tiles from mapserver
Hello everyone, I have some mapserver layers that I would like to generate into tiles (because the content doesn't change much). I would like to find out the following: 1) a link to a tutorial or help on how to do this (which tools to use) 2) how can I calculate an estimate of the size those tiles would occupy 3) what naming convention (or extra details) are needed to make the tiles viewable in OpenLayers. Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Tips on generating tiles from mapserver
Thanks for the help Benoît, but the project you sent me doesn't seem to be able to generate tiles from map files. It seems to be able to generate tiles from other images. Maybe I'm missing something Benoît Andrieu wrote: Very quick answer, some could add comments ! ^^ 1. http://www.gdal.org/gdal2tiles.html 2. It will depend on the output format of gdal2tiles (jpeg/tiff/png compression). Don't know ! 3. Don't know ! Sorry ! Regards, Benoît - Original Message - From: Adrian Popa adrian_gh.p...@romtelecom.ro To: mapserver-users@lists.osgeo.org Sent: Tuesday, October 06, 2009 11:04 AM Subject: [mapserver-users] Tips on generating tiles from mapserver Hello everyone, I have some mapserver layers that I would like to generate into tiles (because the content doesn't change much). I would like to find out the following: 1) a link to a tutorial or help on how to do this (which tools to use) 2) how can I calculate an estimate of the size those tiles would occupy 3) what naming convention (or extra details) are needed to make the tiles viewable in OpenLayers. Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Tips on generating tiles from mapserver
Thank you Lars, I will follow your approach. I hope I won't run out of disk space :) Lars Lingner wrote: Adrian Popa schrieb: Hello everyone, I have some mapserver layers that I would like to generate into tiles (because the content doesn't change much). I would like to find out the following: 1) a link to a tutorial or help on how to do this (which tools to use) You could use TileCache. It comes with an tilecache_seed.py script which generates the tiles queering MapServer. A sample config can look like: - MapServer layer LAYER TYPE POLYGON STATUS ON NAME landuse CONNECTIONTYPE POSTGIS CONNECTION host=host port=port dbname=dbname user=dbuser password=dbpasswd DATA way from (select way,id ,landuse from otg_polygon where landuse is not null ) as foo using unique id using srid=900913 PROCESSING LABEL_NO_CLIP=ON PROCESSING CLOSE_CONNECTION=DEFER CLASSITEM landuse METADATA WMS_TITLE landuse WMS_GROUP_TITLE landuse WMS_EXTENT -3654301.4476046 3830412.5307382 6971056.978358 9730128.1208444 WMS_ABSTRACT layer landuse END #metadata CLASS STYLE COLOR #E3E2DF END END END - corresponding TileCache config [landuse] type=WMS url=http://example.org/cgi-bin/mapserv?map=/path/to/mapfile.map layers=landuse extension=png bbox=-3654301.4476046,3830412.5307382,6971056.978358,9730128.1208444 maxResolution=9783.93961875 srs=EPSG:900913 metaTile=true metaSize=8,8 You have to adjust the extents, resolutions, srs, url to your needs Have a look at TileCache docs for further explanation. (www.tilecache.org) 2) how can I calculate an estimate of the size those tiles would occupy I have no formula at hand. 3) what naming convention (or extra details) are needed to make the tiles viewable in OpenLayers. Either you are using TileCache or you can direct access the cache directory via an OpenLayers.Layer.TileCache so you don't have to bother with naming. Lars ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Any pointers on calculating the shortest route between 2 points?
Hello everybody, Sorry if this question is not specific to mapserver, but I was wondering if I could get some pointers on where to start with this problem. So, I have a layer with street numbers for some cities, and I want to be able to display the route between 2 such points. I've done something similar in the past by using Boost (as a perl module) and loading the network as a graph and using Dijkstra algorithm to calculate the shortest path between 2 points. The problem is - the data I had clearly defined the nodes of the graph (vertexes) and the edges (links) between the nodes, so I was able to easily build the graph and interpret the results. The data I have now looks like this (for a record): OGRFeature(Streets_geocoding):1123 Name (String) = West St FromLeft (Integer) = 3 ToLeft (Integer) = 5 FromRight (Integer) = 12 ToRight (Integer) = 32 Link_ID (Real) = 588532637 Judet (String) = TIMIS Localitate (String) = TIMISOARA L_PostCode (String) = 300609 R_PostCode (String) = 300609 Style = PEN(w:2px,c:#ff00ff,id:mapinfo-pen-2.ogr-pen-0) LINESTRING (21.17921 45.7513097,21.18102 45.7537902) The problem is I have lots of small links (street segments) but without an obvious way to link them together (maybe Link_ID is something useful - I'll look into it). My question is: In your opinion - how is routing implemented on maps (e.g. on GPS receivers) - Do the maps have special information, or should I manage with what I have? Any pointers are helpful, thanks Regards, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] map not available over the Lan or internet
Make sure your server listens on all interfaces, not only on loopback. You need to check apache's config for this and restart the server. Also, you can do netstat -a (I think) on your windows system and look for your port (8085). If next to it you see 0.0.0.0, it means the server is listening on all interfaces. If you see 127.0.0.1, it means the server is listening only on loopback. Good luck. sunny74 wrote: Hi, I am displaying map using mapserver and openlayers in aspx(ASP.NET) page. But problem is that the map is displayed only on local machine and not from a remote machine on the Lan or Internet. On doing some rD i found that if the url is given as in a local machine i.e http://localhost:8085/cgi-bin/mapserv.exe?map=WR_Shape/wrmap.mapmode=map Then map is displayed. But if it is given like this, http://172.16.128.173:8085/cgi-bin/mapserv.exe?map=WR_Shape/wrmap.mapmode=map then it is not. So how can I get mapserver to display map with IP. Thanks for your replies. -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] map not available over the Lan or internet
I forgot... windows automatically replaces IP addresses with hostnames when hostnames are known. SubranilBasu is your hostname and it matches your ip address 127.0.0.1. The concept of listening on all/an interface is the following: when you start a server it can accept queries from all interfaces (it's listening on ip1:8085, ip2:8085, 127.0.0.1:8085 - or a more compact way of writing this is: 0.0.0.0:8085). The server can be started listening only on one interface (for instance listening for queries on the loopback interface 127.0.0.1) - and it will not reply to queries that come on other interfaces. This is what the Listen directive does in apache. I think that it should be Listen 0.0.0.0:8085 if you want to enable the web server on all interfaces (but I haven't checked). Regards, Adrian sunny74 wrote: Hi Adrian, I did as u suggested and next to port 8085 I see SubranilBasu:0 LISTENING and not 0.0.0.0 or 127.0.0.1 as u have stated. I don't understand the terms listening on all interfaces and listening only on loopback.Could u pls explain them. Thanks for your reply. Regards. Adrian Popa wrote: Make sure your server listens on all interfaces, not only on loopback. You need to check apache's config for this and restart the server. Also, you can do netstat -a (I think) on your windows system and look for your port (8085). If next to it you see 0.0.0.0, it means the server is listening on all interfaces. If you see 127.0.0.1, it means the server is listening only on loopback. Good luck. sunny74 wrote: Hi, I am displaying map using mapserver and openlayers in aspx(ASP.NET) page. But problem is that the map is displayed only on local machine and not from a remote machine on the Lan or Internet. On doing some rD i found that if the url is given as in a local machine i.e http://localhost:8085/cgi-bin/mapserv.exe?map=WR_Shape/wrmap.mapmode=map Then map is displayed. But if it is given like this, http://172.16.128.173:8085/cgi-bin/mapserv.exe?map=WR_Shape/wrmap.mapmode=map then it is not. So how can I get mapserver to display map with IP. Thanks for your replies. -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] tooltip openlayers /wms
Hello Youness, Check out this link (for Vector layers) - maybe it helps: http://www.mail-archive.com/us...@openlayers.org/msg7.html YOUNESS ELMEDRAOUI wrote: Hi, plz, how can i create a tooltips with openlayers / wms layers? thnks best regards, Youness ELMEDRAOUI Les informations figurant sur cet e-mail ont un caract�re strictement confidentiel et sont exclusivement adress�es au destinataire mentionn� ci-dessus.Tout usage, reproduction ou divulgation de cet e-mail est strictement interdit si vous n'en �tes pas le destinataire.Dans ce cas, veuillez nous en avertir imm�diatement par la m�me voie et d�truire l'original. Merci ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Applying a hatch over a line layer
Hello, I'm trying to apply a hatch over a line segment, but it doesn't seem to work. My symbol definition is: SYMBOL NAME 'hatch' TYPE HATCH END My layer definition is: LAYER TYPE LINE ... CLASS NAME Test EXPRESSION ( [flag] eq 1) STYLE SYMBOL 'hatch' ANGLE 45 SIZE 3 #spacing between lines WIDTH 4 #width of each line color #00 END style color #fff94d width 2 antialias true end END END The behavior is the following: mapserver draws the lines using the second style (a yellowish color), but doesn't draw a hatch over my line. I've tried with the hatch symbol after the style definition, but it still doesn't work. The hatch worked for POLYGON layers just fine. Is there any way I can use it for LINE data? Thanks, Adrian P.S. I'm using mapserver 5.4.1 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Applying a hatch over a line layer
Hello Thomas, Thank you for your reply. I tried your solution and it draws a dashed line paralel to my feature (on each side because the symbol is thicker). This is nice, but I was wondering if it's possible to draw the lines at an angle relative to my feature, thus created the hatch effect. If this is not possible with a simple symbol - would it be possible with a graphical symbol (picture)? And if yes, should I expect a high performance penalty? Thanks again, Adrian Thomas Bonfort wrote: hi, hatches only apply to polygon layers. what you are probably looking for is the PATTERN keyword: symbol type simple pattern 2 2 end name dashes end regards, thomas www.camptocamp.com +33 4 79 26 57 97 On Mon, Jul 27, 2009 at 11:37, Adrian Popaadrian_gh.p...@romtelecom.ro wrote: Hello, I'm trying to apply a hatch over a line segment, but it doesn't seem to work. My symbol definition is: SYMBOL NAME 'hatch' TYPE HATCH END My layer definition is: LAYER TYPE LINE ... CLASS NAME Test EXPRESSION ( [flag] eq 1) STYLE SYMBOL 'hatch' ANGLE 45 SIZE 3 #spacing between lines WIDTH 4 #width of each line color #00 END style color #fff94d width 2 antialias true end END END The behavior is the following: mapserver draws the lines using the second style (a yellowish color), but doesn't draw a hatch over my line. I've tried with the hatch symbol after the style definition, but it still doesn't work. The hatch worked for POLYGON layers just fine. Is there any way I can use it for LINE data? Thanks, Adrian P.S. I'm using mapserver 5.4.1 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Applying a hatch over a line layer
...Or, to be more clear, I would like to give my lines a striped look - I don't know if there's an easier way to do it than using a symbol... Thanks. Adrian Popa wrote: Hello Thomas, Thank you for your reply. I tried your solution and it draws a dashed line paralel to my feature (on each side because the symbol is thicker). This is nice, but I was wondering if it's possible to draw the lines at an angle relative to my feature, thus created the hatch effect. If this is not possible with a simple symbol - would it be possible with a graphical symbol (picture)? And if yes, should I expect a high performance penalty? Thanks again, Adrian Thomas Bonfort wrote: hi, hatches only apply to polygon layers. what you are probably looking for is the PATTERN keyword: symbol type simple pattern 2 2 end name dashes end regards, thomas www.camptocamp.com +33 4 79 26 57 97 On Mon, Jul 27, 2009 at 11:37, Adrian Popaadrian_gh.p...@romtelecom.ro wrote: Hello, I'm trying to apply a hatch over a line segment, but it doesn't seem to work. My symbol definition is: SYMBOL NAME 'hatch' TYPE HATCH END My layer definition is: LAYER TYPE LINE ... CLASS NAME Test EXPRESSION ( [flag] eq 1) STYLE SYMBOL 'hatch' ANGLE 45 SIZE 3 #spacing between lines WIDTH 4 #width of each line color #00 END style color #fff94d width 2 antialias true end END END The behavior is the following: mapserver draws the lines using the second style (a yellowish color), but doesn't draw a hatch over my line. I've tried with the hatch symbol after the style definition, but it still doesn't work. The hatch worked for POLYGON layers just fine. Is there any way I can use it for LINE data? Thanks, Adrian P.S. I'm using mapserver 5.4.1 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Applying a hatch over a line layer
Hello Thomas, Thank you for your reply. I tried first with an image, but the output didn't look so hot, so I created my own symbol by following this guide: http://umn.mapserver.ch/MapServer/en/sym_vector.htm It still doesn't look very nice, but I will tune it from here. Thanks again, Adrian Thomas Bonfort wrote: yes, you can definitely do that with an image symbol, although that won't be very flexible if you want to change the width. another solution would be with a vector symbol. in both cases, you'll have to add a negative GAP to your symbol definition. cheers, thomas www.camptocamp.com +33 4 79 26 57 97 On Mon, Jul 27, 2009 at 13:47, Adrian Popaadrian_gh.p...@romtelecom.ro wrote: ...Or, to be more clear, I would like to give my lines a striped look - I don't know if there's an easier way to do it than using a symbol... Thanks. Adrian Popa wrote: Hello Thomas, Thank you for your reply. I tried your solution and it draws a dashed line paralel to my feature (on each side because the symbol is thicker). This is nice, but I was wondering if it's possible to draw the lines at an angle relative to my feature, thus created the hatch effect. If this is not possible with a simple symbol - would it be possible with a graphical symbol (picture)? And if yes, should I expect a high performance penalty? Thanks again, Adrian Thomas Bonfort wrote: hi, hatches only apply to polygon layers. what you are probably looking for is the PATTERN keyword: symbol type simple pattern 2 2 end name dashes end regards, thomas www.camptocamp.com +33 4 79 26 57 97 On Mon, Jul 27, 2009 at 11:37, Adrian Popaadrian_gh.p...@romtelecom.ro wrote: Hello, I'm trying to apply a hatch over a line segment, but it doesn't seem to work. My symbol definition is: SYMBOL NAME 'hatch' TYPE HATCH END My layer definition is: LAYER TYPE LINE ... CLASS NAME Test EXPRESSION ( [flag] eq 1) STYLE SYMBOL 'hatch' ANGLE 45 SIZE 3 #spacing between lines WIDTH 4 #width of each line color #00 END style color #fff94d width 2 antialias true end END END The behavior is the following: mapserver draws the lines using the second style (a yellowish color), but doesn't draw a hatch over my line. I've tried with the hatch symbol after the style definition, but it still doesn't work. The hatch worked for POLYGON layers just fine. Is there any way I can use it for LINE data? Thanks, Adrian P.S. I'm using mapserver 5.4.1 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Performance in regular expressions or analternative way to select a list of features
Just for reference: I tried to select about 130 items using a regular expression in the form of EXPRESSION (/^ITEM1|ITEM2|ITEM3|...|ITEM130$/) and rendering took about 4.5-5 seconds. I tried to select the exact same 130 items using IN syntax: EXPRESSION ([myfield] IN ITEM1,ITEM2,ITEM3,...,ITEM130) and the query took about 8.5-9 seconds. The tests were run several times in the same conditions - so the relative results should be relevant. So - performance favors regular expressions :) Adrian Popa wrote: Here's how I fixed this issue. I ended up regenerating the shapefile and dbf and adding a separate column with the grouping I desired. Now, my map file selects from that column, and the syntax is much simpler (by one or two orders of magnitude). I am happy with the results, however, I didn't get the chance to try out all the other methods because of lack of time. Thanks again, Adrian Adrian Popa wrote: Hello Steve, I haven't tried out the simplified regex so I don't know if it will be faster. I will try to test it as part of a speed test of the various methods... I'm not sure what you mean by writing a temporary set of geometries. Do you mean adding an index to my data so that I can select it by a different (grouping) field instead? Unfortunately I can't do that because the same item can be part of 10-20 groups, so there would not be an easy way to group items apart from duplicating them in the shapefile/dbf. I'm not sure if there's a problem if the same feature appears 12 times in the same shapefile. In the end data reorganizing might be the fastest method available. Problem is some items will belong to groups dinamically, so I will have to implement a selection mechanism based on item id... Regards, Adrian Steve Lime wrote: Have you tried a simplified version of your regex? I think you can do: EXPRESSION /^ITEM1|ITEM2|ITEM3|ITEM4$/ You might also consider writing a temporary set of geometries if a user will continually display from that set. In that case your overhead would be in managing the set of features which would be higher the first time but then very fast to render. Your dynamic portion of the mapfile would reference the temporary data. Steve On 7/14/2009 at 1:15 AM, in message 4a5c2277.80...@romtelecom.ro, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello everyone, Here's my problem: I'm trying to highlight segments from a line layer by using an expression in a specific class. This portion of the mapfile is dynamically generated and when it is done, it is sent to mapserver for rendering. My problem is that I have to select between 10 - 400 features at a time and I noticed when I have a lot of features there is a severe performance degradation in mapserver (takes a lot of time to render or even times out). Right now, my expression is built using regular expressions: something like: *EXPRESSION /^ITEM1$|^ITEM2$|^ITEM3$|^ITEM4$/* This works ok, but as I said has a performance penalty when you reach ~400 items. My data is selected from a shapefile layer which has about 5500 items. Since I wouldn't be using the regular expressions at full capacity (I'm matching the full name), I might rewrite the expression using something like: *EXPRESSION ( ([NAME]==ITEM1) OR ([NAME]==ITEM2) OR ([NAME]==ITEM3) OR ([NAME]==ITEM4) )* From the documentation I see that: /Regular expression with MapServer work similarly to string comparison, but allow more complex operation. They are slower than pure string comparisons, but might be still faster than logical expression. As with the string comparison use regular expressions, a FILTERITEM or a CLASSITEM has to defined, respectively. /I would like to know if there is an efficient way of selecting a list of elements from a layer, or what are your recommendations. Also - have there been significant changes in performance for this issue from mapserver 4.10 (I am now migrating to mapserver 5.4)? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Problems when using complex expressions
Thanks, Andreas, I've tried your solution (and already looked over the manual) but it still doesn't match anything... Also - EXPRESSION ([myColumn] =~ /MYREGEXP/i) doesn't match anything and EXPRESSION [myColumn] =~ /MYREGEXP/i complains of a syntax error. myColumn is the exact same thing as what I use in the layer's CLASSITEM definition. I am puzzled... I think I'm using the EXPRESSION syntax the wrong way, but I'm not sure what I'm doing wrong. Regards, Adrian Andreas Albarello wrote: Adrian Popa wrote: EXPRESSION (/MYREGEXP/i)- doesn't work (doesn't match anything) EXPRESSION /MYREGEXP/i - works EXPRESSION [myColumn] ==1 - doesn't work (loadClass(): Unknown identifier. Parsing error near (=)) EXPRESSION ([myColumn] ==1) - doesn't work (doesn't match anything) EXPRESSION ([myColumn] eq 1) - works EXPRESSION (/MYREGEXP/i) ([myColumn] eq 1) - doesn't work (doesn't match anything) EXPRESSION /MYREGEXP/i ([myColumn] eq 1) - doesn't work (loadClass(): Unknown identifier. Parsing error near ()) EXPRESSION ((/MYREGEXP/i) ([myColumn] eq 1)) - doesn't work (doesn't match anything) I have checked my data and it should match - most likely, my expression is wrong. Any suggestions? What is the correct syntax for mixing regular expressions with other values? Adrian, have a look at this: http://mapserver.org/mapfile/expressions.html As far as mixing regular and other expressions goes, this is the correct way to do it: EXPRESSION (([myColumn] =~ /MYREGEXP/i) ([myColumn] eq 1)) Best regards, ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Problems when using complex expressions
I managed to find a workaround for my problem: I used a FILTER statement in the layer definition and an EXPRESSION in my classes: LAYER ... FILTERITEM myColumn1 FILTER /MYREGEXP/i CLASS NAME Test EXPRESSION ( [myColumn2] eq 1 ) END END This configuration seems to work - I will test it some more... If anywone has an idea why the previous examples didn't work - I'd be happy to hear it out... Regards, Adrian Adrian Popa wrote: Thanks, Andreas, I've tried your solution (and already looked over the manual) but it still doesn't match anything... Also - EXPRESSION ([myColumn] =~ /MYREGEXP/i) doesn't match anything and EXPRESSION [myColumn] =~ /MYREGEXP/i complains of a syntax error. myColumn is the exact same thing as what I use in the layer's CLASSITEM definition. I am puzzled... I think I'm using the EXPRESSION syntax the wrong way, but I'm not sure what I'm doing wrong. Regards, Adrian Andreas Albarello wrote: Adrian Popa wrote: EXPRESSION (/MYREGEXP/i)- doesn't work (doesn't match anything) EXPRESSION /MYREGEXP/i - works EXPRESSION [myColumn] ==1 - doesn't work (loadClass(): Unknown identifier. Parsing error near (=)) EXPRESSION ([myColumn] ==1) - doesn't work (doesn't match anything) EXPRESSION ([myColumn] eq 1) - works EXPRESSION (/MYREGEXP/i) ([myColumn] eq 1) - doesn't work (doesn't match anything) EXPRESSION /MYREGEXP/i ([myColumn] eq 1) - doesn't work (loadClass(): Unknown identifier. Parsing error near ()) EXPRESSION ((/MYREGEXP/i) ([myColumn] eq 1)) - doesn't work (doesn't match anything) I have checked my data and it should match - most likely, my expression is wrong. Any suggestions? What is the correct syntax for mixing regular expressions with other values? Adrian, have a look at this: http://mapserver.org/mapfile/expressions.html As far as mixing regular and other expressions goes, this is the correct way to do it: EXPRESSION (([myColumn] =~ /MYREGEXP/i) ([myColumn] eq 1)) Best regards, ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Performance in regular expressions or analternative way to select a list of features
Here's how I fixed this issue. I ended up regenerating the shapefile and dbf and adding a separate column with the grouping I desired. Now, my map file selects from that column, and the syntax is much simpler (by one or two orders of magnitude). I am happy with the results, however, I didn't get the chance to try out all the other methods because of lack of time. Thanks again, Adrian Adrian Popa wrote: Hello Steve, I haven't tried out the simplified regex so I don't know if it will be faster. I will try to test it as part of a speed test of the various methods... I'm not sure what you mean by writing a temporary set of geometries. Do you mean adding an index to my data so that I can select it by a different (grouping) field instead? Unfortunately I can't do that because the same item can be part of 10-20 groups, so there would not be an easy way to group items apart from duplicating them in the shapefile/dbf. I'm not sure if there's a problem if the same feature appears 12 times in the same shapefile. In the end data reorganizing might be the fastest method available. Problem is some items will belong to groups dinamically, so I will have to implement a selection mechanism based on item id... Regards, Adrian Steve Lime wrote: Have you tried a simplified version of your regex? I think you can do: EXPRESSION /^ITEM1|ITEM2|ITEM3|ITEM4$/ You might also consider writing a temporary set of geometries if a user will continually display from that set. In that case your overhead would be in managing the set of features which would be higher the first time but then very fast to render. Your dynamic portion of the mapfile would reference the temporary data. Steve On 7/14/2009 at 1:15 AM, in message 4a5c2277.80...@romtelecom.ro, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello everyone, Here's my problem: I'm trying to highlight segments from a line layer by using an expression in a specific class. This portion of the mapfile is dynamically generated and when it is done, it is sent to mapserver for rendering. My problem is that I have to select between 10 - 400 features at a time and I noticed when I have a lot of features there is a severe performance degradation in mapserver (takes a lot of time to render or even times out). Right now, my expression is built using regular expressions: something like: *EXPRESSION /^ITEM1$|^ITEM2$|^ITEM3$|^ITEM4$/* This works ok, but as I said has a performance penalty when you reach ~400 items. My data is selected from a shapefile layer which has about 5500 items. Since I wouldn't be using the regular expressions at full capacity (I'm matching the full name), I might rewrite the expression using something like: *EXPRESSION ( ([NAME]==ITEM1) OR ([NAME]==ITEM2) OR ([NAME]==ITEM3) OR ([NAME]==ITEM4) )* From the documentation I see that: /Regular expression with MapServer work similarly to string comparison, but allow more complex operation. They are slower than pure string comparisons, but might be still faster than logical expression. As with the string comparison use regular expressions, a FILTERITEM or a CLASSITEM has to defined, respectively. /I would like to know if there is an efficient way of selecting a list of elements from a layer, or what are your recommendations. Also - have there been significant changes in performance for this issue from mapserver 4.10 (I am now migrating to mapserver 5.4)? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Performance in regular expressions or an alternative way to select a list of features
Hello David,
I wasn't aware of the IN syntax. It looks cleaner, and hopefully will
be better. I think in the end I will try all sollutions and see which
one is the fastest for a given (large) expression.
Thangs again,
Adrian
Fawcett, David wrote:
Adrian,
One method that I have used is to use an IN statement in my expression
and then use a variable to populate the list of IDs in the statement.
I create a class like this:
CLASS
NAME Low
EXPRESSION ('[COUNTY_FIP]' in '%group1%')
OUTLINECOLOR 0 0 0
COLOR 255 204 204
END
And then in the URL calling the map, I include group1=27001,27003,27005
I actually use this with five classes (five different URL vars) to
create a thematic map of counties based entirely on data passed in
through the URL.
I have no idea on how the performance of this method compares to what
you have done, but it might be worth a try. There are only 87
counties in Minnesota, so that is the largest number it gets, but the
performance isn't bad.
David.
-Original Message-
*From:* mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] *On Behalf Of
*Adrian Popa
*Sent:* Tuesday, July 14, 2009 1:15 AM
*To:* mapserver-users@lists.osgeo.org
*Subject:* [mapserver-users] Performance in regular expressions or
an alternative way to select a list of features
Hello everyone,
Here's my problem: I'm trying to highlight segments from a line
layer by using an expression in a specific class. This portion of
the mapfile is dynamically generated and when it is done, it is
sent to mapserver for rendering.
My problem is that I have to select between 10 - 400 features at a
time and I noticed when I have a lot of features there is a severe
performance degradation in mapserver (takes a lot of time to
render or even times out).
Right now, my expression is built using regular expressions:
something like:
*EXPRESSION /^ITEM1$|^ITEM2$|^ITEM3$|^ITEM4$/*
This works ok, but as I said has a performance penalty when you
reach ~400 items. My data is selected from a shapefile layer
which has about 5500 items.
Since I wouldn't be using the regular expressions at full capacity
(I'm matching the full name), I might rewrite the expression using
something like:
*EXPRESSION ( ([NAME]==ITEM1) OR ([NAME]==ITEM2) OR
([NAME]==ITEM3) OR ([NAME]==ITEM4) )*
From the documentation I see that:
/Regular expression with MapServer work similarly to string
comparison, but allow more complex operation. They are slower than
pure string comparisons, but might be still faster than logical
expression. As with the string comparison use regular expressions,
a FILTERITEM or a CLASSITEM has to defined, respectively.
/I would like to know if there is an efficient way of selecting a
list of elements from a layer, or what are your recommendations.
Also - have there been significant changes in performance for this
issue from mapserver 4.10 (I am now migrating to mapserver 5.4)?
Thanks,
Adrian
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Re: [mapserver-users] Performance in regular expressions or analternative way to select a list of features
Hello Steve, I haven't tried out the simplified regex so I don't know if it will be faster. I will try to test it as part of a speed test of the various methods... I'm not sure what you mean by writing a temporary set of geometries. Do you mean adding an index to my data so that I can select it by a different (grouping) field instead? Unfortunately I can't do that because the same item can be part of 10-20 groups, so there would not be an easy way to group items apart from duplicating them in the shapefile/dbf. I'm not sure if there's a problem if the same feature appears 12 times in the same shapefile. In the end data reorganizing might be the fastest method available. Problem is some items will belong to groups dinamically, so I will have to implement a selection mechanism based on item id... Regards, Adrian Steve Lime wrote: Have you tried a simplified version of your regex? I think you can do: EXPRESSION /^ITEM1|ITEM2|ITEM3|ITEM4$/ You might also consider writing a temporary set of geometries if a user will continually display from that set. In that case your overhead would be in managing the set of features which would be higher the first time but then very fast to render. Your dynamic portion of the mapfile would reference the temporary data. Steve On 7/14/2009 at 1:15 AM, in message 4a5c2277.80...@romtelecom.ro, Adrian Popa adrian_gh.p...@romtelecom.ro wrote: Hello everyone, Here's my problem: I'm trying to highlight segments from a line layer by using an expression in a specific class. This portion of the mapfile is dynamically generated and when it is done, it is sent to mapserver for rendering. My problem is that I have to select between 10 - 400 features at a time and I noticed when I have a lot of features there is a severe performance degradation in mapserver (takes a lot of time to render or even times out). Right now, my expression is built using regular expressions: something like: *EXPRESSION /^ITEM1$|^ITEM2$|^ITEM3$|^ITEM4$/* This works ok, but as I said has a performance penalty when you reach ~400 items. My data is selected from a shapefile layer which has about 5500 items. Since I wouldn't be using the regular expressions at full capacity (I'm matching the full name), I might rewrite the expression using something like: *EXPRESSION ( ([NAME]==ITEM1) OR ([NAME]==ITEM2) OR ([NAME]==ITEM3) OR ([NAME]==ITEM4) )* From the documentation I see that: /Regular expression with MapServer work similarly to string comparison, but allow more complex operation. They are slower than pure string comparisons, but might be still faster than logical expression. As with the string comparison use regular expressions, a FILTERITEM or a CLASSITEM has to defined, respectively. /I would like to know if there is an efficient way of selecting a list of elements from a layer, or what are your recommendations. Also - have there been significant changes in performance for this issue from mapserver 4.10 (I am now migrating to mapserver 5.4)? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Displaying a string instead of a label
Hi everybody, Can someone point me to the relevant part of the documentation/example that shows how to display a static string (set at the layer level) for a layer instead of displaying a label? Does 'annotation' have anything to do with this? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Displaying a string instead of a label
Thank you Charlotte, I will give it a try! Regards, Adrian Charlotte Declercq wrote: Hi Adrian, You can set the TEXT property of the CLASS object like this : CLASS NAME departement LABEL ANGLE 0.00 ANTIALIAS TRUE FONT Arial MAXSIZE 256 MINSIZE 4 SIZE 8 TYPE TRUETYPE BUFFER 0 COLOR 0 0 0 FORCE FALSE MINDISTANCE -1 MINFEATURESIZE -1 OFFSET 1 1 PARTIALS TRUE POSITION CC SHADOWCOLOR 0 0 0 END STYLE ANGLE 360 COLOR 232 246 9 OPACITY 100 SIZE 10 SYMBOL Carre END TEXT my static text END It will override the label. You don't need CLASSITEM, LABELITEM, LABELMAXSCALEDENOM and LABELMINSCADENOM but you need the LABEL object. The documentation is here : http://mapserver.org/mapfile/class.html /TEXT [string]/ /Static text to label features in this class with. This overrides values obtained from the LABELTIEM. The string may be given as an expression delimited using the ()’s. This allows you to concatenate multiple attributes into a single label. For example: ([FIRSTNAME],[LASTNAME])./ I think you can set the TEXT property on classical layer types such as POLYGON, LINE, POINT, not only ANNOTATION. If you use ANNOTATION, then the text will be placed at the centroid of the polygon of the middle of the line. Regards, ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Performance in regular expressions or an alternative way to select a list of features
Hello everyone, Here's my problem: I'm trying to highlight segments from a line layer by using an expression in a specific class. This portion of the mapfile is dynamically generated and when it is done, it is sent to mapserver for rendering. My problem is that I have to select between 10 - 400 features at a time and I noticed when I have a lot of features there is a severe performance degradation in mapserver (takes a lot of time to render or even times out). Right now, my expression is built using regular expressions: something like: *EXPRESSION /^ITEM1$|^ITEM2$|^ITEM3$|^ITEM4$/* This works ok, but as I said has a performance penalty when you reach ~400 items. My data is selected from a shapefile layer which has about 5500 items. Since I wouldn't be using the regular expressions at full capacity (I'm matching the full name), I might rewrite the expression using something like: *EXPRESSION ( ([NAME]==ITEM1) OR ([NAME]==ITEM2) OR ([NAME]==ITEM3) OR ([NAME]==ITEM4) )* From the documentation I see that: /Regular expression with MapServer work similarly to string comparison, but allow more complex operation. They are slower than pure string comparisons, but might be still faster than logical expression. As with the string comparison use regular expressions, a FILTERITEM or a CLASSITEM has to defined, respectively. /I would like to know if there is an efficient way of selecting a list of elements from a layer, or what are your recommendations. Also - have there been significant changes in performance for this issue from mapserver 4.10 (I am now migrating to mapserver 5.4)? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Performance in regular expressions or an alternative way to select a list of features
Hello Nikolai, As far as you know - the Layers/Classes are processed in paralel (threads)? Would it even be more efficient not to use expressions, but to use simple string matchings and dynamically generate 10-400 Classes in a layer (one class per item)? What would be the best/most scalable approach? Thank you, Adrian Nikolai Nikolov wrote: Hi Adrian, I have used long EXPRESSION list in the past, but my data are “static”, so eventually I modified the map data and removed the polygons I didn’t want to render. I could suggest to you to use in your map file several LAYERs or CLASSes to “spread around” long EXPRESSION lists. Those LAYERs or CLASSes would be identical but for the EXPRESSION lists. You could put a limit of let’s say 10 selected features per CLASS definition. Best regards, Nick *From:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *On Behalf Of *Adrian Popa *Sent:* 14 July 2009 07:15 *To:* mapserver-users@lists.osgeo.org *Subject:* [mapserver-users] Performance in regular expressions or an alternative way to select a list of features Hello everyone, Here's my problem: I'm trying to highlight segments from a line layer by using an expression in a specific class. This portion of the mapfile is dynamically generated and when it is done, it is sent to mapserver for rendering. My problem is that I have to select between 10 - 400 features at a time and I noticed when I have a lot of features there is a severe performance degradation in mapserver (takes a lot of time to render or even times out). Right now, my expression is built using regular expressions: something like: *EXPRESSION /^ITEM1$|^ITEM2$|^ITEM3$|^ITEM4$/* This works ok, but as I said has a performance penalty when you reach ~400 items. My data is selected from a shapefile layer which has about 5500 items. Since I wouldn't be using the regular expressions at full capacity (I'm matching the full name), I might rewrite the expression using something like: *EXPRESSION ( ([NAME]==ITEM1) OR ([NAME]==ITEM2) OR ([NAME]==ITEM3) OR ([NAME]==ITEM4) )* From the documentation I see that: /Regular expression with MapServer work similarly to string comparison, but allow more complex operation. They are slower than pure string comparisons, but might be still faster than logical expression. As with the string comparison use regular expressions, a FILTERITEM or a CLASSITEM has to defined, respectively. /I would like to know if there is an efficient way of selecting a list of elements from a layer, or what are your recommendations. Also - have there been significant changes in performance for this issue from mapserver 4.10 (I am now migrating to mapserver 5.4)? Thanks, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Adding a diagonal hash over a layer
Hello, I'd like to add a diagonal hash over some polygon elements. Can this be done using a symbol? If yes, can you point me to an example? Also - how can I create such a symbol? I'm using mapserver 5.4. Thank you for your patience. Regards, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Adding a proxy/wrapper between the web frontend (openlayers) and mapserver
Hi everyone! I managed to create such a proxy/wrapper - after I
generated the mapfile, I just modified some environment variables and
called mapserv as a regular script. Thankfully the evrironment in which
my wrapper was called is preserved and sent to mapserv.
Here's an example:
#create the mapfile as desired and save the contents to a file who's
complete path is stored in $file
#change the query string and add the map parameter:
$ENV{'QUERY_STRING'} = $ENV{'QUERY_STRING'}.map=$file;
#call the original mapserv script and return the output to the user
print `/var/www/cgi-bin/mapserv`;
#all done
The only major problem I encountered was that mapserver couldn't open
the files referenced in the mapfile (fonts, template, shapefiles). I had
to specify the full paths in the map file to get it working.
Cheers,
Adrian
Adrian Popa wrote:
Hello everyone!
For special reasons (dynamic data) I need to create some sort of
proxy/wrapper around mapserv (5.2) to permit the dynamic modification
of the mapfile based on the age of the specific mapfile.
Basically the user will request a mapfile which on most ocasions will
be generated on the fly (server-side). I would like to feed this
mapfile to mapserv and return the image to the user in a way it's
compatible with open layers. The user would see this wapper in a
transparent way.
I know how to configure the openlayers part and I know how to generate
the map file, but I'm not sure how to link my wrapper to mapserver...
How do I call mapserver the same way the web server would call it? I
think if I call it through a shell, it wouldn't work the same way. I
don't really want to call shp2img because it's harder to maintain.
The output part should be straightforward - I would just print out
what mapserver returns - because it should take care of setting
content-type and sending the image.
Any tips on where I could start?
Thanks!
P.S. I'm writing the wapper in perl and I'm not using the mapserver
API (but I could if it's necessary)
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Re: [mapserver-users] AGG vs GD rendering shows no difference
I've managed to run mapserv through gdb, and my suspicions were
confirmed - it dies in the AGG part:
...
Reading symbols from shared object read from target memory...done.
Loaded system supplied DSO at 0xa3e000
[Thread debugging using libthread_db enabled]
[New Thread -1208244032 (LWP 18090)]
*Program received signal SIGSEGV, Segmentation fault.*
[Switching to Thread -1208244032 (LWP 18090)]
*0x00402b8c in agg::vertex_sequenceagg::vertex_dist, 6u::add () from
/usr/lib/libagg.so.2*
(gdb) where
#0 0x00402b8c in agg::vertex_sequenceagg::vertex_dist, 6u::add ()
from /usr/lib/libagg.so.2
#1 0x00402c2f in agg::vertex_sequenceagg::vertex_dist,
6u::modify_last () from /usr/lib/libagg.so.2
#2 0x004050e5 in agg::vcgen_stroke::add_vertex () from /usr/lib/libagg.so.2
#3 0x080d2f4c in agg::conv_adaptor_vcgenline_adaptor,
agg::vcgen_stroke, agg::null_markers::vertex (this=0xbfdcdbf4,
x=0xbfdcdc98, y=0xbfdcdca0)
at
/home/adrianp/mapserver/mapserver-5.4.1/../agg-2.5/include/agg_conv_adaptor_vcgen.h:115
#4 0x080e4206 in AGGMapserverRenderer::renderPolylineline_adaptor
(this=0xa079968, p...@0xa081b58, col...@0xbfdcdf48, width=1,
dashstylelength=0, dashstyle=0x9c27980,
lc=agg::round_cap, lj=agg::round_join) at
/home/adrianp/mapserver/mapserver-5.4.1/../agg-2.5/include/agg_rasterizer_scanline_aa.h:206
#5 0x080ccc46 in msDrawLineSymbolAGG (symbolset=0x9c2556c,
image=0x9c4bb78, p=0xbfdce298, style=0x9c3ba18, scalefactor=1) at
mapagg.cpp:1672
#6 0x080b331d in msDrawLineSymbol (symbolset=0x9c2556c,
image=0x9c4bb78, p=0xbfdce298, style=0x9c3ba18, scalefactor=1) at
mapdraw.c:2117
#7 0x080b1d4d in msDrawShape (map=0x9c25548, layer=0x9c3ae60,
shape=0xbfdce298, image=0x9c4bb78, style=0, querymapMode=1) at
mapdraw.c:1782
#8 0x080ae1eb in msDrawVectorLayer (map=0x9c25548, layer=0x9c3ae60,
image=0x9c4bb78) at mapdraw.c:938
#9 0x080ad91d in msDrawLayer (map=0x9c25548, layer=0x9c3ae60,
image=0x9c4bb78) at mapdraw.c:743
#10 0x080acb54 in msDrawMap (map=0x9c25548, querymap=0) at mapdraw.c:441
#11 0x080584b3 in main (argc=2, argv=0xbfdcea84) at mapserv.c:1417
I'll have to check to see if there are known bugs regarding AGG...
Adrian Popa wrote:
Thank you for your suggestion Andreas,
I have run shp2img and unfortunately:
[r...@terra tmp]# shp2img -o /tmp/out.png -m
/var/www/html/msmap/dynamicmaps/fibUaBrx.map -e 20.258
43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete
Judete Urban Rural RuralSate buildings fibra fiber-common fiber-STM64
fiber-STM16 fiber-STM4 fiber-STM1 fiber-problems-main
fiber-problems-related fibraProblems
*Segmentation fault*
Running the command through strace, it ends up like this:
read(4, h\376\237\224O\320;@p\225\4\25\'x...@\264d\270^\320;@\26...,
45056) = 45056
read(4, \303\362oU\36\206;@by\237\354...@\34\271\214\333\37\206...,
4096) = 4096
_llseek(9, 12288, [12288], SEEK_SET)= 0
read(9, ..., 4096) = 148
_llseek(4, 1458176, [1458176], SEEK_SET) = 0
read(4, \25\327\377\332\27\...@\30\256\23v9|;@\233M%\235\372\22...,
24576) = 24576
read(4, a\1$\203\...@.\245\211px
;@\314\353\330\355\242\...@\367..., 4096) = 1784
close(8)= 0
munmap(0xb7f36000, 4096)= 0
close(4)= 0
munmap(0xb7f38000, 4096)= 0
close(9)= 0
munmap(0xb7f35000, 4096)= 0
gettimeofday({1245157506, 462482}, NULL) = 0
gettimeofday({1245157506, 462600}, NULL) = 0
open(/etc/localtime, O_RDONLY)= 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=798, ...}) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=798, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f38000
read(4, TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\7\0\0\0\7\0...,
4096) = 798
close(4)= 0
munmap(0xb7f38000, 4096)= 0
gettimeofday({1245157506, 463468}, NULL) = 0
gettimeofday({1245157506, 463535}, NULL) = 0
gettimeofday({1245157506, 463599}, NULL) = 0
gettimeofday({1245157506, 463664}, NULL) = 0
gettimeofday({1245157506, 463734}, NULL) = 0
gettimeofday({1245157506, 463802}, NULL) = 0
gettimeofday({1245157506, 463866}, NULL) = 0
gettimeofday({1245157506, 463934}, NULL) = 0
gettimeofday({1245157506, 464028}, NULL) = 0
*open(/var/www/html/msmap/dynamicmaps/../data/Judete.shp,
O_RDONLY|O_LARGEFILE) = 4*
open(/var/www/html/msmap/dynamicmaps/../data/Judete.shx,
O_RDONLY|O_LARGEFILE) = 8
fstat64(4, {st_mode=S_IFREG|0555, st_size=1484536, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f38000
*read(4*, \0\0\'\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\vS|...,
4096) = 4096
fstat64(8, {st_mode=S_IFREG|0555, st_size=436, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f36000
read(8, \0\0\'\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...,
4096) = 436
open(/var/www
Re: [mapserver-users] AGG vs GD rendering shows no difference
Hello everyone! After a few hours of digging, I managed to solve the problem. I checked mapserver's dependencies and it was linked against agg 2.3: [r...@terra tmp]# ldd /var/www/cgi-bin/mapserv | grep agg libagg.so.2 = /usr/lib/libagg.so.2 (0x003f5000) lrwxrwxrwx 1 root root 15 Jun 15 10:31 /usr/lib/libagg.so - libagg.so.2.0.1 lrwxrwxrwx 1 root root 15 Jun 15 10:31 /usr/lib/libagg.so.2 - libagg.so.2.0.1 -rwxr-xr-x 1 root root 228524 Feb 17 2006 /usr/lib/libagg.so.2.0.1 However, when I compiled mapserver I pointed the AGG code (--with-agg) to version 2.5. So mapserver had been compiled against agg 2.5 but was running with agg 2.3. This caused the segfault when using agg. The solution is to compile AGG2.5 and to install it in the system. Unfortunately, the AGG documentation is scarce and doesn't clearly say how to compile the code, and even if I'm a linux seasoned user, I failed to see the autogen.sh script. Here's how I compiled AGG: *sh autogen.sh ./configure --disable-platform --disable-examples --prefix=/usr make make install * And now, I have also the newer libs in my /usr/lib/ directory: [r...@terra mapserver]# ls -l /usr/lib/libagg* -rw-r--r-- 1 root root 1313570 Jun 17 17:06 /usr/lib/libagg.a -rw-r--r-- 1 root root 395874 Jun 17 17:06 /usr/lib/libaggfontfreetype.a -rwxr-xr-x 1 root root 897 Jun 17 17:06 /usr/lib/libaggfontfreetype.la lrwxrwxrwx 1 root root 27 Jun 17 17:06 /usr/lib/libaggfontfreetype.so - libaggfontfreetype.so.2.0.4 lrwxrwxrwx 1 root root 27 Jun 17 17:06 /usr/lib/libaggfontfreetype.so.2 - libaggfontfreetype.so.2.0.4 -rwxr-xr-x 1 root root 283338 Jun 17 17:06 /usr/lib/libaggfontfreetype.so.2.0.4 -rwxr-xr-x 1 root root 785 Jun 17 17:06 /usr/lib/libagg.la -rw-r--r-- 1 root root 53282 Feb 17 2006 /usr/lib/libaggplatformX11.a lrwxrwxrwx 1 root root 26 Jun 15 10:31 /usr/lib/libaggplatformX11.so - libaggplatformX11.so.2.0.1 lrwxrwxrwx 1 root root 26 Jun 15 10:31 /usr/lib/libaggplatformX11.so.2 - libaggplatformX11.so.2.0.1 -rwxr-xr-x 1 root root 43468 Feb 17 2006 /usr/lib/libaggplatformX11.so.2.0.1 lrwxrwxrwx 1 root root 15 Jun 17 17:06 /usr/lib/libagg.so - libagg.so.2.0.4 lrwxrwxrwx 1 root root 15 Jun 17 17:06 /usr/lib/libagg.so.2 - libagg.so.2.0.4 -rwxr-xr-x 1 root root 228524 Feb 17 2006 /usr/lib/libagg.so.2.0.1 -rwxr-xr-x 1 root root 774469 Jun 17 17:06 /usr/lib/libagg.so.2.0.4 And mapserver renders my maps very well (see attached photos) Thank you all for your help! Regards, Adrian inline: agg.pnginline: png.png___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] AGG vs GD rendering shows no difference
Thank you for your suggestion. I have corrected the mapfile ( added IMAGETYPE 'AGG'), however, when I try to load the map, I get a 500 web server error: [Tue Jun 16 13:43:25 2009] [error] [client 80.97.196.77] Premature end of script headers: mapserv, referer: http://terra/msmap/testmap.pl It seems to me that mapserv dies and doesn't output any headers back. How could I find out the error message? I already have a log statement in my WEB section: LOG /var/www/html/map.log (the file is writable by apache) Unfortunately I don't get anything in this log. My mapserver supports: [r...@terra html]# /var/www/cgi-bin/mapserv -v MapServer version 5.4.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=THREADS SUPPORTS=GEOS INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=MYGIS INPUT=SHAPEFILE Any ideas how to debug this? Thanks Andreas Albarello wrote: Adrian Popa wrote: The original mapfile had rendering set up like this: IMAGETYPE PNG while the new mapfile has rendering set up like this: IMAGETYPE PNG OUTPUTFORMAT NAME 'AGG' DRIVER AGG/PNG IMAGEMODE RGB END Adrian, you'll most likely need to write IMAGETYPE 'AGG' instead of IMAGETYPE PNG to make sure your new outputformat is used. Best regards, ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] AGG vs GD rendering shows no difference
Thank you for your suggestion Andreas,
I have run shp2img and unfortunately:
[r...@terra tmp]# shp2img -o /tmp/out.png -m
/var/www/html/msmap/dynamicmaps/fibUaBrx.map -e 20.258
43.16 29.703 49.2016 -s 1250 800 -l GranitaJudete Judete
Urban Rural RuralSate buildings fibra fiber-common fiber-STM64
fiber-STM16 fiber-STM4 fiber-STM1 fiber-problems-main
fiber-problems-related fibraProblems
*Segmentation fault*
Running the command through strace, it ends up like this:
read(4, h\376\237\224O\320;@p\225\4\25\'x...@\264d\270^\320;@\26...,
45056) = 45056
read(4, \303\362oU\36\206;@by\237\354...@\34\271\214\333\37\206...,
4096) = 4096
_llseek(9, 12288, [12288], SEEK_SET)= 0
read(9, ..., 4096) = 148
_llseek(4, 1458176, [1458176], SEEK_SET) = 0
read(4, \25\327\377\332\27\...@\30\256\23v9|;@\233M%\235\372\22...,
24576) = 24576
read(4, a\1$\203\...@.\245\211px ;@\314\353\330\355\242\...@\367...,
4096) = 1784
close(8)= 0
munmap(0xb7f36000, 4096)= 0
close(4)= 0
munmap(0xb7f38000, 4096)= 0
close(9)= 0
munmap(0xb7f35000, 4096)= 0
gettimeofday({1245157506, 462482}, NULL) = 0
gettimeofday({1245157506, 462600}, NULL) = 0
open(/etc/localtime, O_RDONLY)= 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=798, ...}) = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=798, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f38000
read(4, TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\7\0\0\0\7\0...,
4096) = 798
close(4)= 0
munmap(0xb7f38000, 4096)= 0
gettimeofday({1245157506, 463468}, NULL) = 0
gettimeofday({1245157506, 463535}, NULL) = 0
gettimeofday({1245157506, 463599}, NULL) = 0
gettimeofday({1245157506, 463664}, NULL) = 0
gettimeofday({1245157506, 463734}, NULL) = 0
gettimeofday({1245157506, 463802}, NULL) = 0
gettimeofday({1245157506, 463866}, NULL) = 0
gettimeofday({1245157506, 463934}, NULL) = 0
gettimeofday({1245157506, 464028}, NULL) = 0
*open(/var/www/html/msmap/dynamicmaps/../data/Judete.shp,
O_RDONLY|O_LARGEFILE) = 4*
open(/var/www/html/msmap/dynamicmaps/../data/Judete.shx,
O_RDONLY|O_LARGEFILE) = 8
fstat64(4, {st_mode=S_IFREG|0555, st_size=1484536, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f38000
*read(4*, \0\0\'\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\vS|...,
4096) = 4096
fstat64(8, {st_mode=S_IFREG|0555, st_size=436, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f36000
read(8, \0\0\'\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...,
4096) = 436
open(/var/www/html/msmap/dynamicmaps/../data/Judete.dbf,
O_RDONLY|O_LARGEFILE) = 9
fstat64(9, {st_mode=S_IFREG|0555, st_size=12436, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f35000
read(9, \3k\6\24*\0\0\0\201\0%\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...,
4096) = 4096
_llseek(9, 0, [0], SEEK_SET)= 0
read(9, \3k\6\24*\0\0\0\201\0%\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...,
4096) = 4096
_llseek(8, 0, [0], SEEK_SET)= 0
read(8, \0\0\'\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...,
4096) = 436
read(8, , 4096) = 0
_llseek(4, 0, [0], SEEK_SET)= 0
*read(4*, \0\0\'\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\vS|...,
4096) = 4096
*read(4,*
\...@by\233\300\226bg@\342\376\n\341\34...@\266mo\267\241..., 49152) =
49152
*read(4,* ]\3...@\34\21\376\224 +...@g\245\\8\247\3356@6\277\213.\f...,
4096) = 4096
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Process 20970 detached
I'm not sure if it faults because it can't read from file handler 4
(Judete.shp), or if it's something else... I also tried by not
specifying Judete in the layer list, but it still dies (while reading
Judete.shp!).
I will look further into problems with AGG (because it renders fine with
PNG)
Thank you for your help - now I know where to look.
Regards,
Adrian
P.S. Ideas are welcome!
Andreas Albarello wrote:
On 16 Jun 2009, at 14:25, Adrian Popa wrote:
Hello David,
I got the 500 errors from the http error log file. Unfortunately no
additional information is provided.
I added the MS_ERRORFILE and DEBUG statements to my map file and
although the errorfile is created, I don't get any other information
(neither when the map loads perfectly, nor when it dies with
premature end of script headers.
I read RFC 28 (http://mapserver.org/development/rfc/ms-rfc-28.html)
and they specified that the server should be compiled with
-DENABLE_STDERR_DEBUG, so I recompiled mapserver:
CFLAGS=-DENABLE_STDERR_DEBUG ./configure --with-freetype --with-png
--with-agg=../agg-2.5 --with-proj --with-ogr --with-gdal --with-xml2
--with-wfs --with-wcs --with-wmsclient --with-wfsclient
[mapserver-users] Importing a Google/Yahoo maps raster layer
Hello everybody, I'm not sure if it's been disscussed on the list already or not, but I wanted to ask if it's possible to integrate mapserver (and starting with which version?) with Google/Yahoo maps. I would like to display the raster (satellite) images from google/yahoo as a layer in the map. The thing is - I don't want to store the actual raster data on my server - but to make requests to google/yahoo on the fly. Thank you, Adrian Popa ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Importing a Google/Yahoo maps raster layer
Hello David, Unfortunatelly I am tied into a different web presentation layer - MsMap. It has some features (like marking locations at specific coordinates and adding interactive options to them) and I can't abandon it. I will look at openlayers, to see if it supports the functionality I need. Thank you for your help. Adrian Popa Fawcett, David wrote: Take a look at OpenLayers. http://www.openlayers.org Here is an example of an OpenLayers application that uses Google as the base layer. http://www.openlayers.org/dev/examples/sundials-spherical-mercator.html (When the app first loads, it is using OpenStreetMap data as the base layer. Click on the '+' icon on the right side of the map to expand the layer switcher and you can then switch to a Google layer.) You can also use Microsoft Virtual Earth data http://www.openlayers.org/dev/examples/ And using MapServer, you can publish your data as a WMS and pull it in to the same OpenLayers app. (You can also connect to MapServer with a native MapServer CGI call, but the developers are encouraging the use of a standard WMS call.) David. -Original Message- *From:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *On Behalf Of *Adrian Popa *Sent:* Monday, June 01, 2009 4:16 AM *To:* Rahkonen Jukka *Cc:* mapserver-users@lists.osgeo.org *Subject:* Re: [mapserver-users] Importing a Google/Yahoo maps raster layer Hello, Thank you for your clarification. So, I would need the client-side to support google/yahoo layers and mapserver would run to feed just its specific layers. Interesting. Anyway, do you know any other projects that offer (with an open license) access to raster satellite/aerial imagery that can be integrated with mapserver? Regards, Adrian Popa Rahkonen Jukka wrote: Hi, Terms and conditions of these services do not allow cascading Google/Yahoo maps through Mapserver. However, it is allowed to let the mapping client to make this integration. One example I found from my bookmarks is here: http://sautter.com/map/?zoom=5lat=64.45292lon=30layers=B000TFFF -Jukka Rahkonen Adrian Popa wrote: Hello everybody, I'm not sure if it's been disscussed on the list already or not, but I wanted to ask if it's possible to integrate mapserver (and starting with which version?) with Google/Yahoo maps. I would like to display the raster (satellite) images from google/yahoo as a layer in the map. The thing is - I don't want to store the actual raster data on my server - but to make requests to google/yahoo on the fly. Thank you, Adrian Popa ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Importing a Google/Yahoo maps raster layer
Hello Christopher, Your example has the elements that I need :) Is this basic functionality included in openlayers by default, or is it an addon? Also - will openlayers work with mapserver by default - or through WMS (I don't have experience with WMS)? Thanks for your references. Christopher Schmidt wrote: On Mon, Jun 01, 2009 at 05:06:24PM +0300, Adrian Popa wrote: Hello David, Unfortunatelly I am tied into a different web presentation layer - MsMap. It has some features (like marking locations at specific coordinates and adding interactive options to them) and I can't abandon it. I will look at openlayers, to see if it supports the functionality I need. I'm assuming Annotations are visible marks on the map, and adding interactive options to them means that you can cause something to happen when you click. The first example that was given -- the 'sundials' example -- has both of these features. For a more advanced demonstration of OpenLayers technology, you might be interested in something more like: http://recovery-map.org/map/76/toxic-rivers-of-boston/ -- Chris Thank you for your help. Adrian Popa Fawcett, David wrote: Take a look at OpenLayers. http://www.openlayers.org Here is an example of an OpenLayers application that uses Google as the base layer. http://www.openlayers.org/dev/examples/sundials-spherical-mercator.html (When the app first loads, it is using OpenStreetMap data as the base layer. Click on the '+' icon on the right side of the map to expand the layer switcher and you can then switch to a Google layer.) You can also use Microsoft Virtual Earth data http://www.openlayers.org/dev/examples/ And using MapServer, you can publish your data as a WMS and pull it in to the same OpenLayers app. (You can also connect to MapServer with a native MapServer CGI call, but the developers are encouraging the use of a standard WMS call.) David. -Original Message- *From:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *On Behalf Of *Adrian Popa *Sent:* Monday, June 01, 2009 4:16 AM *To:* Rahkonen Jukka *Cc:* mapserver-users@lists.osgeo.org *Subject:* Re: [mapserver-users] Importing a Google/Yahoo maps raster layer Hello, Thank you for your clarification. So, I would need the client-side to support google/yahoo layers and mapserver would run to feed just its specific layers. Interesting. Anyway, do you know any other projects that offer (with an open license) access to raster satellite/aerial imagery that can be integrated with mapserver? Regards, Adrian Popa Rahkonen Jukka wrote: Hi, Terms and conditions of these services do not allow cascading Google/Yahoo maps through Mapserver. However, it is allowed to let the mapping client to make this integration. One example I found from my bookmarks is here: http://sautter.com/map/?zoom=5lat=64.45292lon=30layers=B000TFFF -Jukka Rahkonen Adrian Popa wrote: Hello everybody, I'm not sure if it's been disscussed on the list already or not, but I wanted to ask if it's possible to integrate mapserver (and starting with which version?) with Google/Yahoo maps. I would like to display the raster (satellite) images from google/yahoo as a layer in the map. The thing is - I don't want to store the actual raster data on my server - but to make requests to google/yahoo on the fly. Thank you, Adrian Popa ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Importing a Google/Yahoo maps raster layer
Thank you for the info - I will give it a try on a testbed installation :) Christopher Schmidt wrote: On Mon, Jun 01, 2009 at 05:20:25PM +0300, Adrian Popa wrote: Hello Christopher, Your example has the elements that I need :) Is this basic functionality included in openlayers by default, or is it an addon? Also - will openlayers work with mapserver by default - or through WMS (I don't have experience with WMS)? Both, but WMS is highly recommended, because using MapServer as CGI is prone to hide errors due to misconfiguration. (Setting up WMS requires only adding: metadata web wms_srs EPSG:4326 end end to your mapfile to work minimally; everything else is optional.) The recovery map example has a significant amount of code, but it is using the trunk version of OpenLayers with no additional features. The UI, some of the popups, the layer addition/removal are all additional pieces added to that UI, but there are other toolkits (Like GeoExt) that provide these in open source software as well. Best Regards, -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Help in Fedora Linux
You could disable selinux by setting: SELINUX=disabled in /etc/sysconfig/selinux and rebooting your system. If you want to use selinux, you will need to create a set of permissions to allow mapserver to write to specific directories - but it's beyond my level of expertise... Rui Gomes wrote: Hi... I build a websig in Linux Ubuntu and now i'm trying to do the same in Linux Fedora but i having a few problems. SELinux is preventing the write of the images in the tmp folder. How i solve this? Thanks -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Generating a symbol with a fixed size
Hello everybody, I'm using mapserver v4.10 and I'm trying to display a circle symbol that has a fixed radius (in meters) that shows the coverage area over a map. The main problem is setting the radius so it would change and cover the same area with different zoom levels (more clearly - I want the radius to be 40m independent of the zoom selected). Is it possible to do with mapserver? The data (points) where I want to draw this symbol is available as an ESRI shapefile layer (as POINT data). Thanks in advance, -- --- Adrian Popa NOC Division Network Engineer Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core Backbone Phone: +40 21 400 3099 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] displaying LINESTRING elements from shapefiles
Hello everybody, I'm trying to display a map generated from openstreetmaps and saved as several shapefile layers. The map was obtained from: http://download.geofabrik.de/osm/europe/ The shapefile roads.shp has a data type of LINESTRING: [r...@alarms romania-osm-shp]# ogrinfo -al roads.shp | head -30 INFO: Open of `roads.shp' using driver `ESRI Shapefile' successful. Layer name: roads Geometry: Line String Feature Count: 51469 Extent: (20.379788, 43.653826) - (29.712869, 48.221387) Layer SRS WKT: GEOGCS[GCS_WGS_1984, DATUM[WGS_1984, SPHEROID[WGS_1984,6378137,298.257223563]], PRIMEM[Greenwich,0], UNIT[Degree,0.017453292519943295]] osm_id: Real (16.0) name: String (32.0) type: String (16.0) oneway: Integer (1.0) OGRFeature(roads):0 osm_id (Real) = 1349 name (String) = Bulevardul Mircea Eliade type (String) = tertiary oneway (Integer) = 0 LINESTRING (26.0931117 44.4696734,26.09368389998 44.46912489997,26.0940642 44.4685717,26.0961094 44.46564860002) I've tried creating the MAP file with a layer type of LINE/LINESTRING/POLYGON, but the map would not display the layer (however mapserver would generate an image). My version of mapserver is 4.10.3 (fedora core 8). My question is: can I display this data type directly with mapserver, or do I need to convert it to something else? Is my version of mapserver too old to display this data? Thanks. Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] displaying LINESTRING elements from shapefiles
Hello, Thanks for the example - I will look into it. Cheers, Adrian Rahkonen Jukka wrote: Hi, This layer shows OSM roads for me from the same shapefiles that you are trying to use. LAYER NAME OSM_roads STATUS ON DATA d:\Data\OSM\roads TYPE LINE UNITS METERS METADATA wms_titleOSM_tiet END CLASS NAME roads OUTLINECOLOR 0 255 0 END PROJECTION init=epsg:4326 END END Check that EXTENT in your mapfile suits the data. -Jukka Rahkonen- Adrian Popa wrote: Hello everybody, I'm trying to display a map generated from openstreetmaps and saved as several shapefile layers. The map was obtained from: http://download.geofabrik.de/osm/europe/ The shapefile roads.shp has a data type of LINESTRING: [r...@alarms romania-osm-shp]# ogrinfo -al roads.shp | head -30 INFO: Open of `roads.shp' using driver `ESRI Shapefile' successful. Layer name: roads Geometry: Line String Feature Count: 51469 Extent: (20.379788, 43.653826) - (29.712869, 48.221387) Layer SRS WKT: GEOGCS[GCS_WGS_1984, DATUM[WGS_1984, SPHEROID[WGS_1984,6378137,298.257223563]], PRIMEM[Greenwich,0], UNIT[Degree,0.017453292519943295]] osm_id: Real (16.0) name: String (32.0) type: String (16.0) oneway: Integer (1.0) OGRFeature(roads):0 osm_id (Real) = 1349 name (String) = Bulevardul Mircea Eliade type (String) = tertiary oneway (Integer) = 0 LINESTRING (26.0931117 44.4696734,26.09368389998 44.46912489997,26.0940642 44.4685717,26.0961094 44.46564860002) I've tried creating the MAP file with a layer type of LINE/LINESTRING/POLYGON, but the map would not display the layer (however mapserver would generate an image). My version of mapserver is 4.10.3 (fedora core 8). My question is: can I display this data type directly with mapserver, or do I need to convert it to something else? Is my version of mapserver too old to display this data? Thanks. Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Changing the EXTENT for a layer
Hello all! I'm trying to display some layers (ESRI Shapefile and MapInfo) in the same map. The ESRI shapefiles work just fine, and I've used them for a long time. The new MapInfo layer however has very different Extent values for its coordinates and does not overlap with the original layers (they should overlap, because they cover the same area). Here is some output from ogrinfo: 1. A layer that displays ok and for which the coordinates are longitude/latitude: [adri...@server data]$ ogrinfo Limits.shp -so -al Had to open data source read-only. INFO: Open of `Limits.shp' using driver `ESRI Shapefile' successful. Layer name: Limits Geometry: Line String Feature Count: 8718 *Extent: (20.261522, 43.618437) - (29.704897, 48.264780)* Layer SRS WKT: GEOGCS[GCS_WGS_1984, DATUM[WGS_1984, SPHEROID[WGS_1984,6378137.0,298.257223563]], PRIMEM[Greenwich,0.0], UNIT[Degree,0.0174532925199433]] OBJECTID_1: Integer (9.0) TIP: Integer (4.0) Shape_Leng: Real (19.11) 2. A layer which displays if I set the Extent parameter in the MAP file to the values returned by ogrinfo: [adri...@server data]$ ogrinfo coverage.TAB -so -al Had to open data source read-only. INFO: Open of `coverage.TAB' using driver `MapInfo File' successful. Layer name: coverage Geometry: Unknown (any) Feature Count: 1 *Extent: (550.002594, 4830850.004496) - (707800.001127, 5318099.996174)* Layer SRS WKT: PROJCS[unnamed, GEOGCS[unnamed, DATUM[WGS_1984, SPHEROID[WGS 84,6378137,298.257223563], TOWGS84[0,0,0,-0,-0,-0,0]], PRIMEM[Greenwich,0], UNIT[degree,0.0174532925199433]], PROJECTION[Transverse_Mercator], PARAMETER[latitude_of_origin,0], PARAMETER[central_meridian,27], PARAMETER[scale_factor,0.9996], PARAMETER[false_easting,50], PARAMETER[false_northing,0], UNIT[Meter,1.0]] LEGEND: String (50.0) THRESHOLD: Real (0.0) COLOR: String (20.0) Prediction_name: String (50.0) I don't know how the second layer was generated (perhaps the values in extent are not longitude/latitude values), but I would like to display both layers in the same coordinate system. If I consider the second set of values is longitude/latitude, they make no sense (unless the surface of Earth is the same as the surface of Jupiter!). My question is: can mapserver do the translation of coordinates (by adding/substracting a fixed value), or do I need to do this with another system? If the solution is external to mapserver, what's my next step (some manuals please!)? I haven't worked with projections; could this be the cause? Any help is appreciated, thanks! Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Changing the EXTENT for a layer
Hello, Thank you for your reply. I managed to find out the MapInfo layer is using WGS 84 / UTM zone 35N (like you predicted). I will try to adjust my mapfile for these projections. I guess I need to reproject *every* layer. Thanks again for your help. I'll contant all to let you know how it worked out. Cheers, Adrian Rahkonen Jukka wrote: Hi, Mapserver works without any knowledge about projection with one dataset if only the extents suit the data coordinates. That's the case with your ESRI layer. But you have two datasets which obviously are using different projections. To show them together either (or both) of them needs to be reprojected. And that is possible only if you know and tell Mapserver the projections for both datasets. What needs to be done is 1) Set at the MAP level the projection that you want Mapserver to use for output as well as map extents using values and units of the output projection. 2) Set at the LAYER level the projections for both of the datasets. To make is as simple as possible for the beginning I suggest to use projection epsg:4326 and a bit wider extents than you have now at MAP level. Thats because those extents are already working for you, and ESRI dataset most propably is in WGS84 projection. Thus you should use projection epsg:4326 also for your ESRI layer. Then there will be just the Mapinfo layer left. Defined by the the ogrinfo line PARAMETER[central_meridian,27] and coordinates it looks like it might be in UTM 35N projection (epsg:32635). Have a try with that first. -Jukka Rahkonen- *L�hett�j�:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *Puolesta *Adrian Popa *L�hetetty:* 25. helmikuuta 2009 9:25 *Vastaanottaja:* mapserver-users@lists.osgeo.org *Aihe:* [mapserver-users] Changing the EXTENT for a layer Hello all! I'm trying to display some layers (ESRI Shapefile and MapInfo) in the same map. The ESRI shapefiles work just fine, and I've used them for a long time. The new MapInfo layer however has very different Extent values for its coordinates and does not overlap with the original layers (they should overlap, because they cover the same area). Here is some output from ogrinfo: 1. A layer that displays ok and for which the coordinates are longitude/latitude: [adri...@server data]$ ogrinfo Limits.shp -so -al Had to open data source read-only. INFO: Open of `Limits.shp' using driver `ESRI Shapefile' successful. Layer name: Limits Geometry: Line String Feature Count: 8718 *Extent: (20.261522, 43.618437) - (29.704897, 48.264780)* Layer SRS WKT: GEOGCS[GCS_WGS_1984, DATUM[WGS_1984, SPHEROID[WGS_1984,6378137.0,298.257223563]], PRIMEM[Greenwich,0.0], UNIT[Degree,0.0174532925199433]] OBJECTID_1: Integer (9.0) TIP: Integer (4.0) Shape_Leng: Real (19.11) 2. A layer which displays if I set the Extent parameter in the MAP file to the values returned by ogrinfo: [adri...@server data]$ ogrinfo coverage.TAB -so -al Had to open data source read-only. INFO: Open of `coverage.TAB' using driver `MapInfo File' successful. Layer name: coverage Geometry: Unknown (any) Feature Count: 1 *Extent: (550.002594, 4830850.004496) - (707800.001127, 5318099.996174)* Layer SRS WKT: PROJCS[unnamed, GEOGCS[unnamed, DATUM[WGS_1984, SPHEROID[WGS 84,6378137,298.257223563], TOWGS84[0,0,0,-0,-0,-0,0]], PRIMEM[Greenwich,0], UNIT[degree,0.0174532925199433]], PROJECTION[Transverse_Mercator], PARAMETER[latitude_of_origin,0], PARAMETER[central_meridian,27], PARAMETER[scale_factor,0.9996], PARAMETER[false_easting,50], PARAMETER[false_northing,0], UNIT[Meter,1.0]] LEGEND: String (50.0) THRESHOLD: Real (0.0) COLOR: String (20.0) Prediction_name: String (50.0) I don't know how the second layer was generated (perhaps the values in extent are not longitude/latitude values), but I would like to display both layers in the same coordinate system. If I consider the second set of values is longitude/latitude, they make no sense (unless the surface of Earth is the same as the surface of Jupiter!). My question is: can mapserver do the translation of coordinates (by adding/substracting a fixed value), or do I need to do this with another system? If the solution is external to mapserver, what's my next step (some manuals please!)? I haven't worked with projections; could this be the cause? Any help is appreciated, thanks! Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http
Re: [mapserver-users] Changing the EXTENT for a layer
Yup, it worked like a charm! Thank you for your help. One more question - how cpu intensive is reprojection using mapserver? I mean, if I have 300 users requesting the page, will I kill the CPU because it needs to reproject a layer, or are the calculations straight-forward and add little extra load on the server? Can I reproject the layer offline and load it without projection in mapserver? If I can, which tool would I use (proj4?)? Thanks again, Adrian Rahkonen Jukka wrote: Hi, Mapserver works without any knowledge about projection with one dataset if only the extents suit the data coordinates. That's the case with your ESRI layer. But you have two datasets which obviously are using different projections. To show them together either (or both) of them needs to be reprojected. And that is possible only if you know and tell Mapserver the projections for both datasets. What needs to be done is 1) Set at the MAP level the projection that you want Mapserver to use for output as well as map extents using values and units of the output projection. 2) Set at the LAYER level the projections for both of the datasets. To make is as simple as possible for the beginning I suggest to use projection epsg:4326 and a bit wider extents than you have now at MAP level. Thats because those extents are already working for you, and ESRI dataset most propably is in WGS84 projection. Thus you should use projection epsg:4326 also for your ESRI layer. Then there will be just the Mapinfo layer left. Defined by the the ogrinfo line PARAMETER[central_meridian,27] and coordinates it looks like it might be in UTM 35N projection (epsg:32635). Have a try with that first. -Jukka Rahkonen- *L�hett�j�:* mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] *Puolesta *Adrian Popa *L�hetetty:* 25. helmikuuta 2009 9:25 *Vastaanottaja:* mapserver-users@lists.osgeo.org *Aihe:* [mapserver-users] Changing the EXTENT for a layer Hello all! I'm trying to display some layers (ESRI Shapefile and MapInfo) in the same map. The ESRI shapefiles work just fine, and I've used them for a long time. The new MapInfo layer however has very different Extent values for its coordinates and does not overlap with the original layers (they should overlap, because they cover the same area). Here is some output from ogrinfo: 1. A layer that displays ok and for which the coordinates are longitude/latitude: [adri...@server data]$ ogrinfo Limits.shp -so -al Had to open data source read-only. INFO: Open of `Limits.shp' using driver `ESRI Shapefile' successful. Layer name: Limits Geometry: Line String Feature Count: 8718 *Extent: (20.261522, 43.618437) - (29.704897, 48.264780)* Layer SRS WKT: GEOGCS[GCS_WGS_1984, DATUM[WGS_1984, SPHEROID[WGS_1984,6378137.0,298.257223563]], PRIMEM[Greenwich,0.0], UNIT[Degree,0.0174532925199433]] OBJECTID_1: Integer (9.0) TIP: Integer (4.0) Shape_Leng: Real (19.11) 2. A layer which displays if I set the Extent parameter in the MAP file to the values returned by ogrinfo: [adri...@server data]$ ogrinfo coverage.TAB -so -al Had to open data source read-only. INFO: Open of `coverage.TAB' using driver `MapInfo File' successful. Layer name: coverage Geometry: Unknown (any) Feature Count: 1 *Extent: (550.002594, 4830850.004496) - (707800.001127, 5318099.996174)* Layer SRS WKT: PROJCS[unnamed, GEOGCS[unnamed, DATUM[WGS_1984, SPHEROID[WGS 84,6378137,298.257223563], TOWGS84[0,0,0,-0,-0,-0,0]], PRIMEM[Greenwich,0], UNIT[degree,0.0174532925199433]], PROJECTION[Transverse_Mercator], PARAMETER[latitude_of_origin,0], PARAMETER[central_meridian,27], PARAMETER[scale_factor,0.9996], PARAMETER[false_easting,50], PARAMETER[false_northing,0], UNIT[Meter,1.0]] LEGEND: String (50.0) THRESHOLD: Real (0.0) COLOR: String (20.0) Prediction_name: String (50.0) I don't know how the second layer was generated (perhaps the values in extent are not longitude/latitude values), but I would like to display both layers in the same coordinate system. If I consider the second set of values is longitude/latitude, they make no sense (unless the surface of Earth is the same as the surface of Jupiter!). My question is: can mapserver do the translation of coordinates (by adding/substracting a fixed value), or do I need to do this with another system? If the solution is external to mapserver, what's my next step (some manuals please!)? I haven't worked with projections; could this be the cause? Any help is appreciated, thanks
Re: [mapserver-users] Color palette for road-like layers
Yes Bob, I like the roads. :) Can you show me how you are able to draw contours around your roads? Thanks Bob Basques wrote: Adrian, Would the lines used for this map work for you? https://gis.ci.stpaul.mn.us/gis/gismo_public/html/ Looks like the original Mapfile link is broken though, I'll need to fix that in the morning. bobb -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Color palette for road-like layers
Thank you all for your help, I had the feeling this is how it's done, but I was hoping for a simpler approach. Anyway, now I must only find some decent colors for my layers :) Cheers, Adrian Paul Spencer wrote: Adrian, that is a fairly simple trick, you need to draw roads twice to do it. You can do that with two separate layers or two STYLE objects within a class depending on what effect you want to achieve. In both cases, you just draw the road 2 pixels wider in your 'outline' color (called a casement). For instance, assuming you are using two STYLE objects: LAYER NAME Major Roads TYPE LINE DATA myroads CLASS NAME Major Roads STYLE #Casement style SIZE 9 COLOR 192 192 192 SYMBOL circle END STYLE #Center style SIZE 7 COLOR 255 255 255 SYMBOL circle END END END You would use two separate layers to draw the casement and center style if you had several layers and/or classes of roads that you wanted to 'merge' the casements - in your google screenshoot, you should notice that the grey casement on Hollywood St merges with the casement on W 8th St and there is no grey line between the two center colors, this would be how to achieve a similar effect in MapServer. Cheers Paul On 6-Jan-09, at 3:51 AM, Adrian Popa wrote: Yes Bob, I like the roads. :) Can you show me how you are able to draw contours around your roads? Thanks Bob Basques wrote: Adrian, Would the lines used for this map work for you? https://gis.ci.stpaul.mn.us/gis/gismo_public/html/ Looks like the original Mapfile link is broken though, I'll need to fix that in the morning. bobb -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users __ Paul Spencer Chief Technology Officer DM Solutions Group Inc http://research.dmsolutions.ca/ -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Adding symbols on top of polyline elements
I looked again over your example, and now I understand the difference from what I tried. Thanks! thomas bonfort wrote: you don't have to... you can use the multiple style blocks as I showed in my last email althoug you will have to play with offsets to avoid the symbols overlapping thomas On Thu, Nov 13, 2008 at 09:40, Adrian Popa [EMAIL PROTECTED] wrote: Thanks for the reply Thomas, I will try a workaround by creating a third symbol with both arrows on top of it Thanks, thomas bonfort wrote: Hi, Case 3: displaying both arrows on the same element: CLASS NAME Right EXPRESSION /^FO040314$/ STYLE SYMBOL right SIZE 24 COLOR 51 102 0 END END CLASS NAME Left EXPRESSION /^FO040314$/ STYLE SYMBOL left SIZE 24 COLOR 102 51 0 END END How can I display both arrows on the same object (or do they display, but they overlap completely?) only ONE class is drawn for each feature, the first one in the rder of the mapfile to meet the expression and scale tests. so your second class is never rendered in this case. CLASS NAME Rightand left EXPRESSION /^FO040314$/ STYLE SYMBOL right SIZE 24 COLOR 51 102 0 END STYLE SYMBOL left SIZE 24 COLOR 102 51 0 END END cheers, thomas -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Adding symbols on top of polyline elements
Hello everybody, I managed to draw the arrows for the polyline layer, and they look ok, but (for a strange reason) I am required to draw these arrows both ways sometimes for the same element. I would like for the arrows to overlap, but instead only one of them is displayed. I attached 3 small pictures (sorry for the spam, but I hope it's not against the mailing list policy) with the displayed outcome in these three cases: Case 1: displaying arrows with the 'right' symbol CLASS NAME Right EXPRESSION /^FO040314$/ STYLE SYMBOL right SIZE 24 COLOR 51 102 0 END END CLASS NAME Left EXPRESSION /SUPERCALIFRAGILISTICEXPIALIDOCIOUS/ STYLE SYMBOL left SIZE 24 COLOR 102 51 0 END END Case 2: displaying arrows with the 'left' symbol CLASS NAME Right EXPRESSION /SUPERCALIFRAGILISTICEXPIALIDOCIOUS/ STYLE SYMBOL right SIZE 24 COLOR 51 102 0 END END CLASS NAME Left EXPRESSION /^FO040314$/ STYLE SYMBOL left SIZE 24 COLOR 102 51 0 END END Case 3: displaying both arrows on the same element: CLASS NAME Right EXPRESSION /^FO040314$/ STYLE SYMBOL right SIZE 24 COLOR 51 102 0 END END CLASS NAME Left EXPRESSION /^FO040314$/ STYLE SYMBOL left SIZE 24 COLOR 102 51 0 END END How can I display both arrows on the same object (or do they display, but they overlap completely?) Thanks for your help, Adrian Adrian Popa wrote: Can you please clarify to me what you mean by data that is oriented? When I built the road layer from GPS data, I added polylines starting from point A-...-B and recorded all the inflections in the road between A and B. By ordered data you mean the direction in this case is A-B? If I wanted to reverse the direction I'd have to write the data to the shapefile in the order B-A? Thanks thomas bonfort wrote: it's the direction of the underlying geometry that's used. so you either need * data that's oriented, and a single boolean filed indicating if its oneway or not, * or an unoriented geometry, and a field indicating if the oneway direction is reversed or not wrt the geometry (and two directional symbols, one with , the other with ) cheers, thomas On Mon, Nov 10, 2008 at 12:01, Adrian Popa [EMAIL PROTECTED] wrote: Hello Thomas, Thank you very much for your tip! It's great. However, I have a question: How can I select the direction of the arrow? I mean, between A and B I have a road segment: AB Right now, it renders as A--B, but I want it to render as A-B. My question is: how does mapserver select the order of A and B? If I understand this, I can create another symbol and use it for the reverse path. Thanks, Adrian thomas bonfort wrote: Hi, for repeated arrow symbols, you can use a truetype (or image, or vector) symbol, with a negative GAP: SYMBOL NAME oneway TYPE TRUETYPE CHARACTER '' FONT arial GAP -20 END and then in your layer: STYLE SYMBOL oneway SIZE 8 COLOR 0 0 0 END cheers, thomas On Mon, Nov 10, 2008 at 10:51, Adrian Popa [EMAIL PROTECTED] wrote: Hello everybody, I have a map that displays roads stored in a polyline format. I would like to mark one-way streets with an arrow symbol drawn on top of the road itself. The symbol can be as small as possible (for beginning I would like to be able to superimpose it anywhere between the street ends, and later on I will lock it to be next to one of the ends). I can already select the one way streets based on the following template: CLASS Name OneWay EXPRESSION /^FO040127$|^FO040132$|^FO040139$|^FO040120$|^FO040104$|^FO040131$|^FO040146$|^FO040129$/ STYLE COLOR 255 0 0 WIDTH 4 END LABEL COLOR 0 0 255 TYPE TRUETYPE FONT arial SIZE 8 ANTIALIAS TRUE POSITION AUTO ANGLE AUTO PARTIALS TRUE MINDISTANCE 0 BUFFER 0 END END Can you show me an example of how to draw such a symbol on top of the layer? Thank you Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de
Re: [mapserver-users] Adding symbols on top of polyline elements
Hello Thomas, Thank you very much for your tip! It's great. However, I have a question: How can I select the direction of the arrow? I mean, between A and B I have a road segment: AB Right now, it renders as A--B, but I want it to render as A-B. My question is: how does mapserver select the order of A and B? If I understand this, I can create another symbol and use it for the reverse path. Thanks, Adrian thomas bonfort wrote: Hi, for repeated arrow symbols, you can use a truetype (or image, or vector) symbol, with a negative GAP: SYMBOL NAME oneway TYPE TRUETYPE CHARACTER '' FONT arial GAP -20 END and then in your layer: STYLE SYMBOL oneway SIZE 8 COLOR 0 0 0 END cheers, thomas On Mon, Nov 10, 2008 at 10:51, Adrian Popa [EMAIL PROTECTED] wrote: Hello everybody, I have a map that displays roads stored in a polyline format. I would like to mark one-way streets with an arrow symbol drawn on top of the road itself. The symbol can be as small as possible (for beginning I would like to be able to superimpose it anywhere between the street ends, and later on I will lock it to be next to one of the ends). I can already select the one way streets based on the following template: CLASS Name OneWay EXPRESSION /^FO040127$|^FO040132$|^FO040139$|^FO040120$|^FO040104$|^FO040131$|^FO040146$|^FO040129$/ STYLE COLOR 255 0 0 WIDTH 4 END LABEL COLOR 0 0 255 TYPE TRUETYPE FONT arial SIZE 8 ANTIALIAS TRUE POSITION AUTO ANGLE AUTO PARTIALS TRUE MINDISTANCE 0 BUFFER 0 END END Can you show me an example of how to draw such a symbol on top of the layer? Thank you Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Adding symbols on top of polyline elements
Can you please clarify to me what you mean by data that is oriented? When I built the road layer from GPS data, I added polylines starting from point A-...-B and recorded all the inflections in the road between A and B. By ordered data you mean the direction in this case is A-B? If I wanted to reverse the direction I'd have to write the data to the shapefile in the order B-A? Thanks thomas bonfort wrote: it's the direction of the underlying geometry that's used. so you either need * data that's oriented, and a single boolean filed indicating if its oneway or not, * or an unoriented geometry, and a field indicating if the oneway direction is reversed or not wrt the geometry (and two directional symbols, one with , the other with ) cheers, thomas On Mon, Nov 10, 2008 at 12:01, Adrian Popa [EMAIL PROTECTED] wrote: Hello Thomas, Thank you very much for your tip! It's great. However, I have a question: How can I select the direction of the arrow? I mean, between A and B I have a road segment: AB Right now, it renders as A--B, but I want it to render as A-B. My question is: how does mapserver select the order of A and B? If I understand this, I can create another symbol and use it for the reverse path. Thanks, Adrian thomas bonfort wrote: Hi, for repeated arrow symbols, you can use a truetype (or image, or vector) symbol, with a negative GAP: SYMBOL NAME oneway TYPE TRUETYPE CHARACTER '' FONT arial GAP -20 END and then in your layer: STYLE SYMBOL oneway SIZE 8 COLOR 0 0 0 END cheers, thomas On Mon, Nov 10, 2008 at 10:51, Adrian Popa [EMAIL PROTECTED] wrote: Hello everybody, I have a map that displays roads stored in a polyline format. I would like to mark one-way streets with an arrow symbol drawn on top of the road itself. The symbol can be as small as possible (for beginning I would like to be able to superimpose it anywhere between the street ends, and later on I will lock it to be next to one of the ends). I can already select the one way streets based on the following template: CLASS Name OneWay EXPRESSION /^FO040127$|^FO040132$|^FO040139$|^FO040120$|^FO040104$|^FO040131$|^FO040146$|^FO040129$/ STYLE COLOR 255 0 0 WIDTH 4 END LABEL COLOR 0 0 255 TYPE TRUETYPE FONT arial SIZE 8 ANTIALIAS TRUE POSITION AUTO ANGLE AUTO PARTIALS TRUE MINDISTANCE 0 BUFFER 0 END END Can you show me an example of how to draw such a symbol on top of the layer? Thank you Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Display road layer realistically
Hello everybody, I have to draw a fiber-optic layer that can be interpreted like a road layer (polyline data type). I've drawn it in simple ways (colored lines), but now it must look more professional... I would like some tips on how to draw this/color schemes to make it look better. LAYER NAME fibraProblems TYPE LINE STATUS off DATA fibra CLASSITEM nume LABELITEM nume CLASS Name Selected EXPRESSION /selected/ STYLE COLOR 255 0 0 WIDTH 4 END LABEL COLOR 0 0 255 TYPE TRUETYPE FONT arial SIZE 8 ANTIALIAS TRUE POSITION AUTO PARTIALS TRUE MINDISTANCE 0 BUFFER 0 # PRIORITY 5 END END END Also, on some parts of the fiber, there are multiple fibers going the same way... I would like to represent them like in this subway map: http://www.frenchculture.com/images/metro_map.gif, meaning adjacent fibers should apear next to each-other. Any idea if this can be done with mapserver? Thank you, Adrian ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Displaying layers based on zoom level
Hello everybody, I'm new to this mailing list, so forgive me if this question has been asked before (I haven't been able to search the archives). My question is this: I have a map with several layers (including cities, roads, villages) and I would like to automatically turn some layers on when the user has zoomed in enough. I know I have read somewhere that you can set a property to the layer to tell it when it should be turned automatically on, but I can't find the property name or an example to get me going. So please, point me in the right direction. Thank you! PS. I'm using mapserver 4.1 (and msMap as a frontend). -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Displaying layers based on zoom level
Thank you very much for your help. I made the changes (tweaked the values for MAXSCALE) and I'm happy with the results :) Cheers! David Martinez Morata wrote: Hi! The functions in LAYER object are MAXSCALE 'Value of Scale' MINSCALE 'Value of minimun Scale' Consult this http://mapserver.gis.umn.edu/docs/reference/mapfile/layer And at the end of the page you find some considerations for MINSCALE AND MAXSCALE interpretation in MapServer 2008/6/6 Adrian Popa [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]: Hello everybody, I'm new to this mailing list, so forgive me if this question has been asked before (I haven't been able to search the archives). My question is this: I have a map with several layers (including cities, roads, villages) and I would like to automatically turn some layers on when the user has zoomed in enough. I know I have read somewhere that you can set a property to the layer to tell it when it should be turned automatically on, but I can't find the property name or an example to get me going. So please, point me in the right direction. Thank you! PS. I'm using mapserver 4.1 (and msMap as a frontend). -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org mailto:mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users -- Adrian Popa Network Engineer Romtelecom S.A. Divizia Centrul National de Operare Retea Departament Transport IP Metro Compartiment IP Core ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
