[mapserver-users] Mapserver and MapScript performance issue
Hi, First of all, thank you for Mapserver and all of the documentation. Its really a great product. Im having some performance issues when querying on a column in MapScript. I use the following code: $oResult = @$oLayerObject-queryByAttributes($strField, $strSearchString, MS_SINGLE); Where $strField can for instance be Point_ID and $strSearchString can be something like HEG1 . I only need one result, as the column is the primary key for the table, and is unique. The tables Im searching through is of MapInfo *.tab format, has about 50000 records, and the actual columns are indexed. Each lookup with PHP MapScript takes about 1.5 seconds. Ive uploaded the data into a PostGIS-database, and I can find the actual record in about 0.03 seconds. My mapfile definition of the layers looks like this: LAYER NAME Traseer PROJECTION init=epsg:32632 END GROUP TelMe METADATA wfs_title Traseer wfs_srs EPSG:32632 gml_featureid Trace_ID gml_include_items Trace_ID,Type END TYPE LINE CONNECTIONTYPE OGR CONNECTION TM_Nett/TM_Traces.TAB STYLEITEM AUTO maxscaledenom 30 TEMPLATE ttt_query.html DUMP TRUE CLASS NAME Traseer SYMBOL default-circle COLOR 255 0 0 #SIZE 6 END END # Layer LAYER NAME Punkter GROUP TelMe METADATA wfs_title Punkter wfs_srs EPSG:32632 gml_featureid Point_ID gml_include_itemsall gml_exclude_items rowid# wms_title Punkter wms_srs EPSG:32632 END PROJECTION init=epsg:32632 END DUMP TRUE TYPE POINT CONNECTIONTYPE OGR CONNECTION TM_Nett/TM_Points.TAB CLASSITEM Type CLASS maxscaledenom 1000 TEMPLATE ttt_query.html EXPRESSION TRASE SPLIT NAME Trasedeling STYLE SYMBOL 'circle' SIZE 8 COLOR -1 -1 -1 #Usynlig END END CLASS maxscaledenom 3000 TEMPLATE ttt_query.html EXPRESSION /NEXANS WTC*/ NAME WTC-Bokser STYLE SYMBOL 'square' SIZE 12 COLOR 255 128 0 #Orange OUTLINECOLOR 0 0 0 END END CLASS maxscaledenom 1 TEMPLATE ttt_query.html EXPRESSION /NODE*/ NAME Node STYLE
[mapserver-users] getFeatureInfo html with special characters in datasource
hi, I'd like to get a html-feature-info like Niedersachsen 167 I get both, 'Niedersachsen' and '167' from the same table-column of the database and I need the line break between them. When I use 'Niedersachsenbr167' in the Atrributes, mapserver changes the brackets into the html-entities and i get 'Niedersachsenlt;brgt;167' which is shown as 'Niedersachsenbr167' in the browser-window. Are there any special-characters I can use in the database or is there an other solution? Jörg ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Re: Mapserver unnecessary slow with Spatialite
Even Rouault wrote:
30. August 2011 23:28
I've just added support for spatialite views in GDAL trunk
(r23011). Spatial
index of the base table is used to speed up spatial queries
on the view.
On your example, to create the spatial view :
ogrinfo berlin.sqlite -sql create view
osm_line_highway_not_null as select
OGC_FID AS ROWID, GEOMETRY, osm_id ,highway,ref,name, tunnel
from osm_line
where highway is not null
ogrinfo berlin.sqlite -sql INSERT INTO
views_geometry_columns (view_name,
view_geometry, view_rowid, f_table_name, f_geometry_column) VALUES
('osm_line_highway_not_null', 'GEOMETRY', 'ROWID',
'osm_line', 'GEOMETRY')
Note: you must call the primary key ROWID if you want QGIS to
be able to
display the view on the map. I'm not sure why this is
necessary (the OGR
driver works with other names), may be a limitation of the
qgis spatialite
driver.
And then you can use osm_line_highway_not_null as a regular
layer for
mapserver.
I have done some speed tests with fresh Mapserver Windows build (date
09.09.2011) installed from
http://www.gisinternals.com/sdk/PackageList.aspx?file=release-1500-gdal-mapserver.zip
and the gdal binaries from the same package.
Results are somehow baffling. Good news is that with the new build does support
the use of Spatialite views as Mapserver layers that the views are really a bit
faster to use than having DATA as SELECT...FROM...WHERE.. in the mapfile.
Feels good so far. But when I switched back to standard MS4W I measured that
Mapserver was more than two times faster with the old binaries than with the
new ones.
A closer analysis showed that new binaries were considerably faster in
rendering the most heavy layer roadsclose_03 but much slower with all the
othet layers.
Results with MS4W
=
rendering using outputformat named png (AGG/PNG).
WMS/WFS set-up and query, 0.000s
Layer 0 (landuse_layer1), 0.531s
Layer 1 (landuse_layer2), 0.481s
Layer 2 (landuse_layer3), 0.501s
Layer 3 (landuse_layer4), 0.550s
Layer 4 (landuse_layer5), 0.491s
Layer 5 (landuse_layer6), 0.281s
Layer 7 (sports), 0.430s
Layer 10 (railways_03), 0.301s
Layer 18 (roadsclose_03), 5.398s
Layer 27 (places_01), 0.250s
Drawing Label Cache, 0.010s
total time: 9.244s
Results with the dev-binaries
=
rendering using outputformat named png (AGG/PNG).
WMS/WFS set-up and query, 0.000s
Layer 0 (landuse_layer1), 1.753s
Layer 1 (landuse_layer2), 2.554s
Layer 2 (landuse_layer3), 1.762s
Layer 3 (landuse_layer4), 1.733s
Layer 4 (landuse_layer5), 2.543s
Layer 5 (landuse_layer6), 1.793s
Layer 7 (sports), 2.163s
Layer 10 (railways_03), 1.732s
Layer 18 (roadsclose_03), 1.753s
Layer 27 (places_01), 1.732s
Drawing Label Cache, 0.000s
total time: 19.518s
I can mail a link for downloading the whole test set-up with data and mapfiles
if someone gets interested.
-Jukka Rahkonen-
___
mapserver-users mailing list
mapserver-users@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/mapserver-users
AW: [mapserver-users] getFeatureInfo html with special characters indatasource
Hi, Perhaps you can use [yourFIELD_raw]. It shouldn't encode HTML. http://mapserver.org/mapfile/template.html [attribute name],[attrribute name_esc],[attribute item name_raw] Or you can use javascript in your templates to solve this !-- Mapserver Template -- script var ret = [yourFIELD].split( ).join(br); document.write(ret); /script Arnd -Ursprüngliche Nachricht- Von: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Im Auftrag von Jörg Thomsen Gesendet: Freitag, 9. September 2011 12:01 An: mapserver-users@lists.osgeo.org Betreff: [mapserver-users] getFeatureInfo html with special characters indatasource hi, I'd like to get a html-feature-info like Niedersachsen 167 I get both, 'Niedersachsen' and '167' from the same table-column of the database and I need the line break between them. When I use 'Niedersachsenbr167' in the Atrributes, mapserver changes the brackets into the html-entities and i get 'Niedersachsenlt;brgt;167' which is shown as 'Niedersachsenbr167' in the browser-window. Are there any special-characters I can use in the database or is there an other solution? Jörg ___ 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] MapScript WMS request
Puneet,
As far as I know, OpenLayers still has support for a layer based on MapServer
CGI. Because MapServer can also serve up WMS well, this layer type isn't
necessarily recommended or as well supported.
http://dev.openlayers.org/docs/files/OpenLayers/Layer/MapServer-js.html
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet Kishor
Sent: Thursday, September 08, 2011 9:32 PM
To: Daniel Morissette
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 8, 2011, at 8:28 PM, Daniel Morissette wrote:
On 11-09-08 09:02 PM, Mr. Puneet Kishor wrote:
On Sep 8, 2011, at 7:43 PM, Daniel Morissette wrote:
Maybe call $map-save(/tmp/my.map) in your script after the map and layer
have been populated and paste the result... that may give us a hint...
wow! this is a super-awesome debugging technique. I have sent you the map
file off list to not pollute the entire list serve.
I was able to reproduce the issue with the copy of the mapfile you sent
off-list.
It turns out that mappostgis.c's msPostGISLayerGetExtent() is hardcoded to
always return
{minx = -2500, miny = -2500, maxx = 2500, maxy = 2500}
...and then it returns MS_SUCCESS.
I think this function should either be left unimplemented (this way MapServer
would fallback on other mechanisms), or return MS_FAILURE to indicate to the
calling code that it didn't do anything useful.
A quick search indicates an open ticket about the issue:
http://trac.osgeo.org/mapserver/ticket/3585
You could bump the ticket and hope someone works on it at the FOSS4G code
sprint next week.
The short term fix for you would be to set the ows_extent metadata in your
layer:
METADATA
ows_extent -180 -90 180 90
...
END
Thanks Daniel. I will bump the ticket. For now, see below --
Using the my.map file I sent you, with no further modifications to it, I am
able to successfully get an image back via
[http://localhost.local/cgi-bin/gmna?SERVICE=WMSVERSION=1.1.1REQUEST=GetMapBBOX=-180,-90,180,90SRS=EPSG:4326WIDTH=1200HEIGHT=600LAYERS=gmnaSTYLES=FORMAT=image/pngTRANSPARENT=true]
Note, no further modifications is required, that is, not even the ows_extent
-180 -90 180 90 bit in the layer METADATA. and I still get a good image.
However, if I use the following program to access the same map file, I get the
spurious minx = -2500, miny = -2500, maxx = 2500, maxy = 2500
in the GetCapabilities.
Finally, if I add the ows_extent -180 -90 180 90 line in the layer METADATA
in the my.map file, the GetCapabilities returns the correct bounds now,
however, the image is still blank.
#!/opt/local/bin/perl
use strict;
use mapscript;
my $wms = new mapscript::OWSRequest();
$wms-setParameter(SERVICE, WMS );
$wms-setParameter(VERSION, 1.1.1 );
$wms-setParameter(REQUEST, GetMap );
$wms-setParameter(BBOX, -180,-90,180,90 );
$wms-setParameter(LAYERS, gmna);
$wms-setParameter(SRS, EPSG:4326);
$wms-setParameter(WIDTH, 1200);
$wms-setParameter(HEIGHT, 600);
$wms-setParameter(FORMAT, image/png);
$wms-setParameter(TRANSPARENT, true);
my $map = new
mapscript::mapObj(/Users/punkish/Sites/test/mapscript/my.map);
if(!$map) {
warn New mapObj() error: $mapscript::ms_error-{message}\n;
}
my $io = mapscript::msIO_installStdoutToBuffer();
my $dispatch_out = $map-OWSDispatch( $wms );
printf %s\n, mapscript::msIO_getStdoutBufferString();
I have now spent an enormous amount of time on this, and for now, I have to
move on. This is just not working out. Maybe I will try some other technique,
perhaps this mode=tile to see if I can get MapServer powered maps in my apps.
Thanks much for your help. If you (or anyone else) can come up with a bright
idea, I will be happy to try it.
Puneet.
___
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] MapScript WMS request
On Sep 9, 2011, at 8:39 AM, Fawcett, David (MPCA) wrote:
Puneet,
As far as I know, OpenLayers still has support for a layer based on MapServer
CGI. Because MapServer can also serve up WMS well, this layer type isn't
necessarily recommended or as well supported.
http://dev.openlayers.org/docs/files/OpenLayers/Layer/MapServer-js.html
Indeed David. Because, going by the docs, the MapServer CGI calls are
discouraged (or so it seems), I'd rather not invest in that path. This is a
long term project that I am working on, so the foundations have to be very
robust. Besides, I may or may not use OL. While I like OL a lot, I am also
looking at other frameworks (Gmaps, Leaflet, Polymaps), and it would be wise to
decouple the backend from the front-end as much as possible.
I have no issues with using WMS, but I just am unable to get MapServer WMS to
work via MapScript. And, yes, I do have to use MapScript if I can help it -- my
layer classification is generated on demand, and MapScript is the easiest way I
can think of for doing that.
I did find yesterday that `mode=tile` works really well, but I am trying to
make that work with MapScript. A separate email thread for that question.
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet
Kishor
Sent: Thursday, September 08, 2011 9:32 PM
To: Daniel Morissette
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 8, 2011, at 8:28 PM, Daniel Morissette wrote:
On 11-09-08 09:02 PM, Mr. Puneet Kishor wrote:
On Sep 8, 2011, at 7:43 PM, Daniel Morissette wrote:
Maybe call $map-save(/tmp/my.map) in your script after the map and
layer have been populated and paste the result... that may give us a
hint...
wow! this is a super-awesome debugging technique. I have sent you the map
file off list to not pollute the entire list serve.
I was able to reproduce the issue with the copy of the mapfile you sent
off-list.
It turns out that mappostgis.c's msPostGISLayerGetExtent() is hardcoded to
always return
{minx = -2500, miny = -2500, maxx = 2500, maxy = 2500}
...and then it returns MS_SUCCESS.
I think this function should either be left unimplemented (this way
MapServer would fallback on other mechanisms), or return MS_FAILURE to
indicate to the calling code that it didn't do anything useful.
A quick search indicates an open ticket about the issue:
http://trac.osgeo.org/mapserver/ticket/3585
You could bump the ticket and hope someone works on it at the FOSS4G code
sprint next week.
The short term fix for you would be to set the ows_extent metadata in your
layer:
METADATA
ows_extent -180 -90 180 90
...
END
Thanks Daniel. I will bump the ticket. For now, see below --
Using the my.map file I sent you, with no further modifications to it, I am
able to successfully get an image back via
[http://localhost.local/cgi-bin/gmna?SERVICE=WMSVERSION=1.1.1REQUEST=GetMapBBOX=-180,-90,180,90SRS=EPSG:4326WIDTH=1200HEIGHT=600LAYERS=gmnaSTYLES=FORMAT=image/pngTRANSPARENT=true]
Note, no further modifications is required, that is, not even the
ows_extent -180 -90 180 90 bit in the layer METADATA. and I still get a
good image.
However, if I use the following program to access the same map file, I get
the spurious minx = -2500, miny = -2500, maxx = 2500, maxy =
2500 in the GetCapabilities.
Finally, if I add the ows_extent -180 -90 180 90 line in the layer
METADATA in the my.map file, the GetCapabilities returns the correct bounds
now, however, the image is still blank.
#!/opt/local/bin/perl
use strict;
use mapscript;
my $wms = new mapscript::OWSRequest();
$wms-setParameter(SERVICE, WMS );
$wms-setParameter(VERSION, 1.1.1 );
$wms-setParameter(REQUEST, GetMap );
$wms-setParameter(BBOX, -180,-90,180,90 );
$wms-setParameter(LAYERS, gmna);
$wms-setParameter(SRS, EPSG:4326);
$wms-setParameter(WIDTH, 1200);
$wms-setParameter(HEIGHT, 600);
$wms-setParameter(FORMAT, image/png);
$wms-setParameter(TRANSPARENT, true);
my $map = new
mapscript::mapObj(/Users/punkish/Sites/test/mapscript/my.map);
if(!$map) {
warn New mapObj() error: $mapscript::ms_error-{message}\n;
}
my $io = mapscript::msIO_installStdoutToBuffer();
my $dispatch_out = $map-OWSDispatch( $wms );
printf %s\n, mapscript::msIO_getStdoutBufferString();
I have now spent an enormous amount of time on this, and for now, I have to
move on. This is just not working out. Maybe I will try some other technique,
perhaps this mode=tile to see if I can get MapServer powered maps in my apps.
Thanks much for your help. If you (or anyone
[mapserver-users] Use EXTENT to crop an image within a map file
Is it possible to only use a subset of an image that is referenced in a mapfile? In the mapfile below there are two FAA sectional charts. There are borders on the charts that I don't want on the final composite image. If the EXTENT actually clipped the image before rendering, I could get what I'm looking for, but it only seems to be used to determine overlap with the bounds of the output image (and not always then). I'm sure I could use something like gdal_translate to preprocess all of the charts, but that a really tedious sort of task and results in extra images lying around. Would prefer to use source images and have the mapfile pull the correct bits out of them. The charts are available at: http://aeronav.faa.gov/index.asp?xml=aeronav/applications/VFR/chartlist_sect Xander # # MapServer map file for FAA Sectional Raster charts (test case w/ only two charts) # MAP NAME FAA Sectional Raster IMAGETYPE PNG SIZE 256 256 DEBUG OFF UNITS DD SHAPEPATH /MapData/FAA/SectionalRaster PROJECTION init=epsg:4269 END WEB METADATA wms_srs EPSG:900913 EPSG:4326 ows_enable_request * END END LAYER NAME LA North DATA Los Angeles 89 North.tif STATUS ON TYPE RASTER DUMP TRUE PROJECTION auto END END LAYER NAME LA South DATA Los Angeles 89 South.tif STATUS ON TYPE RASTER DUMP TRUE PROJECTION +proj=lcc +lat_1=38.7 +lat_2=33.3 +lat_0=34.16667 +lon_0=-118.5 END EXTENT -122 32 -119 34 END END END ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
RE: [mapserver-users] MapScript WMS request
Puneet,
Using MapServer CGI and layer.MapServer would not set you up well for other
client libraries, so I see your point. It can be viable though.
In this app (just an imagemap, not OL), there are no attribute values
associated with the spatial data. The classes are generated on-the-fly and the
county id's for each class are passed in as URL vars. Same thing for the
legend. This allows flexibility for compounds who's emissions may vary from
tens of pounds to millions of pounds.
This approach may not work for your case, but it is another way to slice it...
http://www.pca.state.mn.us/index.php/topics/environmental-data/eda-environmental-data-access/eda-air-quality-searches/eda-air-quality-search-emissions-by-county-data.html
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet Kishor
Sent: Friday, September 09, 2011 9:35 AM
To: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 9, 2011, at 8:39 AM, Fawcett, David (MPCA) wrote:
Puneet,
As far as I know, OpenLayers still has support for a layer based on MapServer
CGI. Because MapServer can also serve up WMS well, this layer type isn't
necessarily recommended or as well supported.
http://dev.openlayers.org/docs/files/OpenLayers/Layer/MapServer-js.html
Indeed David. Because, going by the docs, the MapServer CGI calls are
discouraged (or so it seems), I'd rather not invest in that path. This is a
long term project that I am working on, so the foundations have to be very
robust. Besides, I may or may not use OL. While I like OL a lot, I am also
looking at other frameworks (Gmaps, Leaflet, Polymaps), and it would be wise to
decouple the backend from the front-end as much as possible.
I have no issues with using WMS, but I just am unable to get MapServer WMS to
work via MapScript. And, yes, I do have to use MapScript if I can help it -- my
layer classification is generated on demand, and MapScript is the easiest way I
can think of for doing that.
I did find yesterday that `mode=tile` works really well, but I am trying to
make that work with MapScript. A separate email thread for that question.
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet
Kishor
Sent: Thursday, September 08, 2011 9:32 PM
To: Daniel Morissette
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 8, 2011, at 8:28 PM, Daniel Morissette wrote:
On 11-09-08 09:02 PM, Mr. Puneet Kishor wrote:
On Sep 8, 2011, at 7:43 PM, Daniel Morissette wrote:
Maybe call $map-save(/tmp/my.map) in your script after the map and
layer have been populated and paste the result... that may give us a
hint...
wow! this is a super-awesome debugging technique. I have sent you the map
file off list to not pollute the entire list serve.
I was able to reproduce the issue with the copy of the mapfile you sent
off-list.
It turns out that mappostgis.c's msPostGISLayerGetExtent() is hardcoded to
always return
{minx = -2500, miny = -2500, maxx = 2500, maxy = 2500}
...and then it returns MS_SUCCESS.
I think this function should either be left unimplemented (this way
MapServer would fallback on other mechanisms), or return MS_FAILURE to
indicate to the calling code that it didn't do anything useful.
A quick search indicates an open ticket about the issue:
http://trac.osgeo.org/mapserver/ticket/3585
You could bump the ticket and hope someone works on it at the FOSS4G code
sprint next week.
The short term fix for you would be to set the ows_extent metadata in your
layer:
METADATA
ows_extent -180 -90 180 90
...
END
Thanks Daniel. I will bump the ticket. For now, see below --
Using the my.map file I sent you, with no further modifications to it, I am
able to successfully get an image back via
[http://localhost.local/cgi-bin/gmna?SERVICE=WMSVERSION=1.1.1REQUEST=GetMapBBOX=-180,-90,180,90SRS=EPSG:4326WIDTH=1200HEIGHT=600LAYERS=gmnaSTYLES=FORMAT=image/pngTRANSPARENT=true]
Note, no further modifications is required, that is, not even the
ows_extent -180 -90 180 90 bit in the layer METADATA. and I still get a
good image.
However, if I use the following program to access the same map file, I get
the spurious minx = -2500, miny = -2500, maxx = 2500, maxy =
2500 in the GetCapabilities.
Finally, if I add the ows_extent -180 -90 180 90 line in the layer
METADATA in the my.map file, the GetCapabilities returns the correct bounds
now, however, the image is still blank.
#!/opt/local/bin/perl
use strict;
use mapscript;
my $wms = new mapscript::OWSRequest();
$wms-setParameter(SERVICE, WMS );
Re: [mapserver-users] MapScript WMS request
David,
On Sep 9, 2011, at 9:47 AM, Fawcett, David (MPCA) wrote:
Puneet,
Using MapServer CGI and layer.MapServer would not set you up well for other
client libraries, so I see your point. It can be viable though.
In this app (just an imagemap, not OL), there are no attribute values
associated with the spatial data. The classes are generated on-the-fly and
the county id's for each class are passed in as URL vars. Same thing for the
legend. This allows flexibility for compounds who's emissions may vary from
tens of pounds to millions of pounds.
This approach may not work for your case, but it is another way to slice it...
Possibly. See, it is crucially important for me to be able to generate classes
on the fly, and with a lot of flexibility. Not just that, the criteria for
generating the classes can change. So, what I am doing actually is setting up a
separate application that does nothing but respond with class information. The
mapping application (and, any other application, for that matter), would query
this class generating application and make the classes as per the latest
information. Hence, my need for MapScripting. Well, there are other reasons as
well, but this is an important one.
http://www.pca.state.mn.us/index.php/topics/environmental-data/eda-environmental-data-access/eda-air-quality-searches/eda-air-quality-search-emissions-by-county-data.html
By the way, the app above is not working. I get broken images, and the
following errors in the web inspector (that might help you troubleshoot)
GET http://www.pca.state.mn.us/oea/css/master.css 404 (Not Found)
emissions.cfm:28 ReferenceError: Can't find variable: urchinTracker
GET http://maps.pca.state.mn.us/cgi-bin/mapserv? ..snipped.. A server with the
specified hostname could not be found.
GET http://maps.pca.state.mn.us/cgi-bin/mapserv? ..snipped.. A server with the
specified hostname could not be found.
GET
http://cf.pca.state.mn.us/data/edaAir/artwork/edaP2results_edaAmbientResultsPollutantsJuly_04.gif
404 (Not Found)
master-print.cssGET http://www.pca.state.mn.us/oea/css/master-print.css 404
(Not Found)
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet
Kishor
Sent: Friday, September 09, 2011 9:35 AM
To: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 9, 2011, at 8:39 AM, Fawcett, David (MPCA) wrote:
Puneet,
As far as I know, OpenLayers still has support for a layer based on
MapServer CGI. Because MapServer can also serve up WMS well, this layer
type isn't necessarily recommended or as well supported.
http://dev.openlayers.org/docs/files/OpenLayers/Layer/MapServer-js.html
Indeed David. Because, going by the docs, the MapServer CGI calls are
discouraged (or so it seems), I'd rather not invest in that path. This is a
long term project that I am working on, so the foundations have to be very
robust. Besides, I may or may not use OL. While I like OL a lot, I am also
looking at other frameworks (Gmaps, Leaflet, Polymaps), and it would be wise
to decouple the backend from the front-end as much as possible.
I have no issues with using WMS, but I just am unable to get MapServer WMS to
work via MapScript. And, yes, I do have to use MapScript if I can help it --
my layer classification is generated on demand, and MapScript is the easiest
way I can think of for doing that.
I did find yesterday that `mode=tile` works really well, but I am trying to
make that work with MapScript. A separate email thread for that question.
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet
Kishor
Sent: Thursday, September 08, 2011 9:32 PM
To: Daniel Morissette
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 8, 2011, at 8:28 PM, Daniel Morissette wrote:
On 11-09-08 09:02 PM, Mr. Puneet Kishor wrote:
On Sep 8, 2011, at 7:43 PM, Daniel Morissette wrote:
Maybe call $map-save(/tmp/my.map) in your script after the map and
layer have been populated and paste the result... that may give us a
hint...
wow! this is a super-awesome debugging technique. I have sent you the map
file off list to not pollute the entire list serve.
I was able to reproduce the issue with the copy of the mapfile you sent
off-list.
It turns out that mappostgis.c's msPostGISLayerGetExtent() is hardcoded to
always return
{minx = -2500, miny = -2500, maxx = 2500, maxy = 2500}
...and then it returns MS_SUCCESS.
I think this function should either be left unimplemented (this way
MapServer would fallback on other mechanisms), or return MS_FAILURE to
indicate to the calling code that it didn't do anything
RE: [mapserver-users] MapScript WMS request
DNS issue, should be fixed by Monday... ; ('
-Original Message-
From: Mr. Puneet Kishor [mailto:punk.k...@gmail.com]
Sent: Friday, September 09, 2011 10:00 AM
To: Fawcett, David (MPCA)
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
David,
On Sep 9, 2011, at 9:47 AM, Fawcett, David (MPCA) wrote:
Puneet,
Using MapServer CGI and layer.MapServer would not set you up well for other
client libraries, so I see your point. It can be viable though.
In this app (just an imagemap, not OL), there are no attribute values
associated with the spatial data. The classes are generated on-the-fly and
the county id's for each class are passed in as URL vars. Same thing for the
legend. This allows flexibility for compounds who's emissions may vary from
tens of pounds to millions of pounds.
This approach may not work for your case, but it is another way to slice it...
Possibly. See, it is crucially important for me to be able to generate classes
on the fly, and with a lot of flexibility. Not just that, the criteria for
generating the classes can change. So, what I am doing actually is setting up a
separate application that does nothing but respond with class information. The
mapping application (and, any other application, for that matter), would query
this class generating application and make the classes as per the latest
information. Hence, my need for MapScripting. Well, there are other reasons as
well, but this is an important one.
http://www.pca.state.mn.us/index.php/topics/environmental-data/eda-environmental-data-access/eda-air-quality-searches/eda-air-quality-search-emissions-by-county-data.html
By the way, the app above is not working. I get broken images, and the
following errors in the web inspector (that might help you troubleshoot)
GET http://www.pca.state.mn.us/oea/css/master.css 404 (Not Found)
emissions.cfm:28 ReferenceError: Can't find variable: urchinTracker
GET http://maps.pca.state.mn.us/cgi-bin/mapserv? ..snipped.. A server with the
specified hostname could not be found.
GET http://maps.pca.state.mn.us/cgi-bin/mapserv? ..snipped.. A server with the
specified hostname could not be found.
GET
http://cf.pca.state.mn.us/data/edaAir/artwork/edaP2results_edaAmbientResultsPollutantsJuly_04.gif
404 (Not Found)
master-print.cssGET http://www.pca.state.mn.us/oea/css/master-print.css 404
(Not Found)
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet
Kishor
Sent: Friday, September 09, 2011 9:35 AM
To: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 9, 2011, at 8:39 AM, Fawcett, David (MPCA) wrote:
Puneet,
As far as I know, OpenLayers still has support for a layer based on
MapServer CGI. Because MapServer can also serve up WMS well, this layer
type isn't necessarily recommended or as well supported.
http://dev.openlayers.org/docs/files/OpenLayers/Layer/MapServer-js.html
Indeed David. Because, going by the docs, the MapServer CGI calls are
discouraged (or so it seems), I'd rather not invest in that path. This is a
long term project that I am working on, so the foundations have to be very
robust. Besides, I may or may not use OL. While I like OL a lot, I am also
looking at other frameworks (Gmaps, Leaflet, Polymaps), and it would be wise
to decouple the backend from the front-end as much as possible.
I have no issues with using WMS, but I just am unable to get MapServer WMS to
work via MapScript. And, yes, I do have to use MapScript if I can help it --
my layer classification is generated on demand, and MapScript is the easiest
way I can think of for doing that.
I did find yesterday that `mode=tile` works really well, but I am trying to
make that work with MapScript. A separate email thread for that question.
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Mr. Puneet
Kishor
Sent: Thursday, September 08, 2011 9:32 PM
To: Daniel Morissette
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] MapScript WMS request
On Sep 8, 2011, at 8:28 PM, Daniel Morissette wrote:
On 11-09-08 09:02 PM, Mr. Puneet Kishor wrote:
On Sep 8, 2011, at 7:43 PM, Daniel Morissette wrote:
Maybe call $map-save(/tmp/my.map) in your script after the map and
layer have been populated and paste the result... that may give us a
hint...
wow! this is a super-awesome debugging technique. I have sent you the map
file off list to not pollute the entire list serve.
I was able to reproduce the issue with the copy of the mapfile you sent
off-list.
It turns out that mappostgis.c's msPostGISLayerGetExtent() is hardcoded to
always return
{minx = -2500, miny =
