Re: [mapserver-users] Accessing mapserver from Flash Script

[Ken S. Elvehjem]

Bob, P Kishor, and Dan Little,

Thanks for the responses.

After reading the article at blooberry.com, it looks like other stuff needs to 
be fixed also.

Is there some other means of accessing the mapserver?  some of the 
documentation seemed to indicate that I should be generating a request in some 
kind of XML request.

I'd sure like to know if anyone is using Flash to actually access a mapserver.

Sincerely,

Ken


- Original Message - 
  From: Bob Basques 
  To: Ken S. Elvehjem 
  Sent: Saturday, December 19, 2009 8:26 PM
  Subject: Re: [mapserver-users] Accessing mapserver from Flash Script


  Ken, 

  You could try to enocde the entire URL from stage one.  Read more here:

  http://www.blooberry.com/indexdot/html/topics/urlencoding.htm

  Using the converter near the bottom of the page, your URL goes from :


  
http://mapserver.soilsampling.com/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\ND\ND_griggs-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=554649,5245688,557949,5248988&WIDTH=1650&HEIGHT=1650&FORMAT=image/jpeg
 

  to

  
http://mapserver.soilsampling.com/cgi-bin/mapserv.exe?map=c:%5Cms4w%5CApache%5Chtdocs%5CND%5CND_griggs-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=554649%2C5245688%2C557949%2C5248988&WIDTH=1650&HEIGHT=1650&FORMAT=image/jpeg


  You can even escape the "&" characters if needed using the same syntax.

  bobb


  Ken S. Elvehjem wrote: 

Hi, 

I have set up a Mapserver which serves up aerial photography.  Works better 
than "just great!" 

Now, I'm trying to write some web/flash based software using the OpenLaszlo 
software.  This product allows me to write a "script" in a kind of XML, which 
then gets compiled to a Flash .swf file. 

With this tool, I can set an image(JPEG) on my page from anywhere on the 
web, simply by using the correct URL.  However, I cannot understand how to 
create the URL to get a JPG file from the mapserver.  The troubleshooting data 
suggests that the problem is with an "unescaped ampersand (&) ... is there a 
way to escape this escape madness?   

URL: 


http://mapserver.soilsampling.com/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\ND\ND_griggs-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=554649,5245688,557949,5248988&WIDTH=1650&HEIGHT=1650&FORMAT=image/jpeg
 

This URL is also problematic, tho it's not a "MapServer" url: 


http://cairo.gis.iastate.edu/server.cgi/Aerial.jpg?layer=naip_2007&zoom=1&X0=222375&y0=4744771&pwidth=858&pheight=738&format=jpg

Any ideas would be greatly appreciated! 

sincerely, 

Ken S. Elvehjem 
Ken S. Elvehjem
PO Box 37
Lowry MN  56349

320.283.5684
320.424.1299 c
320.283.5247 h

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[mapserver-users] Accessing mapserver from Flash Script

[Ken S. Elvehjem]

Hi, 

I have set up a Mapserver which serves up aerial photography.  Works better 
than "just great!" 

Now, I'm trying to write some web/flash based software using the OpenLaszlo 
software.  This product allows me to write a "script" in a kind of XML, which 
then gets compiled to a Flash .swf file. 

With this tool, I can set an image(JPEG) on my page from anywhere on the web, 
simply by using the correct URL.  However, I cannot understand how to create 
the URL to get a JPG file from the mapserver.  The troubleshooting data 
suggests that the problem is with an "unescaped ampersand (&) ... is there a 
way to escape this escape madness?   

URL: 

http://mapserver.soilsampling.com/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\ND\ND_griggs-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=554649,5245688,557949,5248988&WIDTH=1650&HEIGHT=1650&FORMAT=image/jpeg
 

This URL is also problematic, tho it's not a "MapServer" url: 

http://cairo.gis.iastate.edu/server.cgi/Aerial.jpg?layer=naip_2007&zoom=1&X0=222375&y0=4744771&pwidth=858&pheight=738&format=jpg

Any ideas would be greatly appreciated! 

sincerely, 

Ken S. Elvehjem 
Ken S. Elvehjem
PO Box 37
Lowry MN  56349

320.283.5684
320.424.1299 c
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Re: [mapserver-users] Label display

[Ken S. Elvehjem]

From: "Ken S. Elvehjem" <[EMAIL PROTECTED]>
To: "TC Haddad" <[EMAIL PROTECTED]>
Subject: Re: [mapserver-users] Label display
Date: Wednesday, June 18, 2008 7:15 AM

TC,

Yes, I don't have any control over that.  Yet.   The I-35 symbol and text are 
not issues, in this case, because they are closer to the center of the picture.

My center coordinates are selected from a list of land survey plots... in the 
north central US, the land was surveyed in plots of 1 square mile -- 640 acres. 
 The bulk of the individual fields in which I am interested (like 99.1%) will 
fall within the boundaries of that square mile, or section, to use the survey 
word.

However, the maps we create are used for navigating to the "correct" field by 
field crews, and we have found that the operator in the office that creates 
them is much happier (and more accurate) if they can see a margin around that 
section for context & landmarks. We try to have approximately 1/2 mile all the 
way around.  

This operator draws in boundaries (using software I've written for the purpose) 
to mark the fields of interest, some of which extend past the edge of the 
section.  Then, so as to have a larger picture in the field, the picture is 
cropped some to get rid of some of the border.

Unfortunately, some of the roads begin at the section boundary and extend 
toward the edge of the picture, and those labels are then placed somewhere 
between the edge of the section and the edge of the picture, and these may end 
up missing from the final product.

The operator can put in those labels manually, but the whole point was to 
automate the process...

Sincerely,

Ken

  ----- Original Message - 
  From: TC Haddad 
  To: Ken S. Elvehjem 
  Sent: Tuesday, June 17, 2008 10:42 PM
  Subject: Re: [mapserver-users] Label display


  looks like it *is* happening for your highway symbol (which is drawn first).. 
The problem is that the next label (the "I-35" text) on the vertical line is 
drawn to avoid the one that is already on the line. No way to stop that I 
think...

  do you always have both sets of labels drawing?



  On Tue, Jun 17, 2008 at 8:07 PM, Ken S. Elvehjem <[EMAIL PROTECTED]> wrote:

OK, so here's that URL I forgot to include...


http://ortho.gis.iastate.edu/wmsconnector/com.esri.wms.Esrimap?&REQUEST=getmap&bbox=452711,4684970,453211,4685470&srs=epsg:26915&version=1.1.1&service=WMS&LAYERS=Iowa%20Roads%20E911,Midwest%20Highways,Cities,Counties&width=500&HEIGHT=500&FORMAT=PNG&TRANSPARENT=TRUE&servicename=transportation_midwest&SLD=http://ortho.gis.iastate.edu/sld/Iowa_Roads_E911_X3Font.xml

Ken

  - Original Message - 
  From: Ken S. Elvehjem 
  To: mapserver-users@lists.osgeo.org 
  Sent: Tuesday, June 17, 2008 6:39 PM
  Subject: [mapserver-users] Label display


  Hi,

  I'm using a program generated query to fetch a transparent PNG file of 
about 1600 pixels square from a streets & roads database in Iowa.  A sample URL 
is pasted below my sig lines.

  It works great, but the problem is that the features from a different 
layer (aerial photo) in which I am interested will usually be within the center 
1/4 of the picture, and it usually gets cropped to center on that  feature, 
which blows away some of my labels.

  Is there any way to force the labels closer to the (x,y) center of the 
returned PNG file while still following along whatever feature they are 
identifying?

  That is to say, if there is one on a north/south road, we'd like it to be 
nearer the Y center of the pic, and if one is on an east/west road, then have 
it be closer to the X center of the picture.

  Any magic we can invoke to do *that*

  Sincerely,

  Ken
  Ken S. Elvehjem
  ELVEHJEM TECHNICAL SUPPORT
  250 Drury Ave
  PO Box 37
  Lowry MN  56349
  320.283.5684
  320.283.5247 h
  320.424.1299 c


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  - Original Message - 
  From: TC Haddad 
  To: Ken S. Elvehjem 
  Sent: Tuesday, June 17, 2008 10:42 PM
  Subject: Re: [mapserver-users] Label display


  looks like it *is* happening for your highway symbol (which is drawn first).. 
The problem is that the next label (the "I-35" text) on the vertical line is 
drawn to avoid the one that is already on the line. No way to stop that I 
think...

  do you always have both sets of labels drawing?



  On Tue, Jun 

Re: [mapserver-users] Label display

[Ken S. Elvehjem]

OK, so here's that URL I forgot to include...

http://ortho.gis.iastate.edu/wmsconnector/com.esri.wms.Esrimap?&REQUEST=getmap&bbox=452711,4684970,453211,4685470&srs=epsg:26915&version=1.1.1&service=WMS&LAYERS=Iowa%20Roads%20E911,Midwest%20Highways,Cities,Counties&width=500&HEIGHT=500&FORMAT=PNG&TRANSPARENT=TRUE&servicename=transportation_midwest&SLD=http://ortho.gis.iastate.edu/sld/Iowa_Roads_E911_X3Font.xml

Ken

  - Original Message - 
  From: Ken S. Elvehjem 
  To: mapserver-users@lists.osgeo.org 
  Sent: Tuesday, June 17, 2008 6:39 PM
  Subject: [mapserver-users] Label display


  Hi,

  I'm using a program generated query to fetch a transparent PNG file of about 
1600 pixels square from a streets & roads database in Iowa.  A sample URL is 
pasted below my sig lines.

  It works great, but the problem is that the features from a different layer 
(aerial photo) in which I am interested will usually be within the center 1/4 
of the picture, and it usually gets cropped to center on that  feature, which 
blows away some of my labels.

  Is there any way to force the labels closer to the (x,y) center of the 
returned PNG file while still following along whatever feature they are 
identifying?

  That is to say, if there is one on a north/south road, we'd like it to be 
nearer the Y center of the pic, and if one is on an east/west road, then have 
it be closer to the X center of the picture.

  Any magic we can invoke to do *that*

  Sincerely,

  Ken
  Ken S. Elvehjem
  ELVEHJEM TECHNICAL SUPPORT
  250 Drury Ave
  PO Box 37
  Lowry MN  56349
  320.283.5684
  320.283.5247 h
  320.424.1299 c


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[mapserver-users] Label display

[Ken S. Elvehjem]

Hi,

I'm using a program generated query to fetch a transparent PNG file of about 
1600 pixels square from a streets & roads database in Iowa.  A sample URL is 
pasted below my sig lines.

It works great, but the problem is that the features from a different layer 
(aerial photo) in which I am interested will usually be within the center 1/4 
of the picture, and it usually gets cropped to center on that  feature, which 
blows away some of my labels.

Is there any way to force the labels closer to the (x,y) center of the returned 
PNG file while still following along whatever feature they are identifying?

That is to say, if there is one on a north/south road, we'd like it to be 
nearer the Y center of the pic, and if one is on an east/west road, then have 
it be closer to the X center of the picture.

Any magic we can invoke to do *that*

Sincerely,

Ken
Ken S. Elvehjem
ELVEHJEM TECHNICAL SUPPORT
250 Drury Ave
PO Box 37
Lowry MN  56349
320.283.5684
320.283.5247 h
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Re: [mapserver-users] using gdalinfo.exe

[Ken S. Elvehjem]

OK,

I'll check it out.

Thanks once again for the timely reply!

Ken


- Original Message - 
From: "Frank Warmerdam" <[EMAIL PROTECTED]>

To: "Ken S. Elvehjem" <[EMAIL PROTECTED]>
Cc: 
Sent: Wednesday, April 09, 2008 9:22 AM
Subject: Re: [mapserver-users] using gdalinfo.exe



Ken S. Elvehjem wrote:

Frank,

Thank you for the response.  Is there some other way to get some of  the 
"gdal  info" with a simple query?  I'm not stuck on using gdalinfo... it 
just seemed like a good idea.


What I need is the UTM Zone -- that's already specified (I guess) in the 
EPSG statement in the mapfile.  Can it be extracted from there over the 
web by way of a URL / query?


Ken,

There is no stock mechanism for this, but you could write a custom
mapscript application to pick this information out of the map file and
return it as a web service.  I would note though that MapServer does not
normally provide access to stuff like file bounds to mapscript so there
it is hard to provide very much information using mapscript itself.

You could try setting up the dataset as WCS accessable, and then the
WCS DescribeCoverage method would provide a variety of information about
the file.

Best regards,
--
---+--
I set the clouds in motion - turn up   | Frank Warmerdam, 
[EMAIL PROTECTED]

light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush| President OSGeo, http://osgeo.org



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Re: [mapserver-users] using gdalinfo.exe

[Ken S. Elvehjem]

Frank,

Thank you for the response.  Is there some other way to get some of  the 
"gdal  info" with a simple query?  I'm not stuck on using gdalinfo... it 
just seemed like a good idea.


What I need is the UTM Zone -- that's already specified (I guess) in the 
EPSG statement in the mapfile.  Can it be extracted from there over the web 
by way of a URL / query?


Ken


- Original Message - 
From: "Frank Warmerdam" <[EMAIL PROTECTED]>

To: "Ken S. Elvehjem" <[EMAIL PROTECTED]>
Cc: 
Sent: Tuesday, April 08, 2008 9:25 PM
Subject: Re: [mapserver-users] using gdalinfo.exe



Ken S. Elvehjem wrote:

 Hi,
 I'm currently generating a query from my software to access a MrSid file 
that I have on my MapServer; here's the link:


http://206.183.188.202/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\SD\mccook-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=611300,4815500,613300,4817500&WIDTH=800&HEIGHT=800&FORMAT=image/jpeg 
<http://206.183.188.202/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\SD\mccook-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=611300,4815500,613300,4817500&WIDTH=800&HEIGHT=800&FORMAT=image/jpeg>
 I'd like to be able to generate a URL that will get me the "gdalinfo" on 
that file...  Here's what doesn't work:


http://206.183.188.202/cgi-bin/gdalinfo.exe?c:\ms4w\Apache\htdocs\SD\mccook\mccook2006.sid
 Could someone point out A.) if I'm barking up the wrong tree 
completetely, and if not, B.) what does that kind of query/URL need to 
look like?


Ken,

I'm not aware of anyone doing anything quite like this.  gdalinfo isn't
setup to be used as a cgi, and doesn't return things html encoded or
with a content-type header.  And MapServer does not have an equivelent
functionality.

But, in theory, you could write a little gdalinfo script in 
php/perl/python

that would execute gdalinfo on a passed argument filename and then return
the result with a proper "Content-type: text/plain" header.

Best regards,
--
---+--
I set the clouds in motion - turn up   | Frank Warmerdam, 
[EMAIL PROTECTED]

light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush| President OSGeo, http://osgeo.org



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[mapserver-users] using gdalinfo.exe

[Ken S. Elvehjem]

Hi,

I'm currently generating a query from my software to access a MrSid file that I 
have on my MapServer; here's the link:

http://206.183.188.202/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\SD\mccook-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=611300,4815500,613300,4817500&WIDTH=800&HEIGHT=800&FORMAT=image/jpeg

I'd like to be able to generate a URL that will get me the "gdalinfo" on that 
file...  Here's what doesn't work:

http://206.183.188.202/cgi-bin/gdalinfo.exe?c:\ms4w\Apache\htdocs\SD\mccook\mccook2006.sid

Could someone point out A.) if I'm barking up the wrong tree completetely, and 
if not, B.) what does that kind of query/URL need to look like?

Many Thanks,

Ken S. Elvehjem


MapFile: 

MAP
  NAME MCCOOK
  STATUS ON

  IMAGETYPE JPEG
  SIZE 600 600

  PROJECTION
   "init=epsg:26914"
  END
 
  UNITS METERS
#[minx] [miny]  [maxx] [maxy] in meters
  EXTENT 610471 4810318 651740 4859698

  #-
  WEB
 TEMPLATE "SD.html"
 IMAGEPATH "C:\ms4w\Apache\htdocs\tmp/"
 IMAGEURL "/tmp/"
 
   METADATA
 "wms_title"   "WMS McCOOK"
 "wms_onlineresource"  "http://206.183.188.202/cgi-bin/mapserv?";
   "wms_srs" "EPSG:26914 EPSG:26914"
 END

 
  END

  #-
  LAYER
NAME NAIP2006
TYPE RASTER
STATUS DEFAULT
DATA "mccook/mccook2006.sid"

 PROJECTION
   "init=epsg:4269"
 END

   METADATA
 "wms_title"   "WMS McCOOK"
 "wms_onlineresource"  "http://206.183.188.202/cgi-bin/mapserv?";
   "wms_srs" "EPSG:4269 EPSG:4326"
 END

  END

END # Map File
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Re: [mapserver-users] upload/stream data from GPS unit?

[Ken S. Elvehjem]

Bill,

Am still not particularly proficient with MapServer to help with the "how" -- 
instead, I'm curious about the "how near" real time.  Within 10 seconds or 10 
minutes?  

Also,  how much data?  if it is just x,y,z info  could you have the machine 
that's reading the GPS append points to a (say) ShapeFile, and send the whole 
thing?  This would work if your ShapeFile held the last couple of hundred 
points;  Then it might be possible to display those points + another layer that 
would have an accumulation of the points, and a process on the server that 
would append the newest points to the accumulated file.

I'll confess to being more than a little curious about what you are doing...

Ken




  - Original Message - 
  From: Bill Wordsworth 
  To: mapserver-users@lists.osgeo.org 
  Sent: Thursday, March 27, 2008 1:21 PM
  Subject: Re: [mapserver-users] upload/stream data from GPS unit?


  Thanks Steve. I am clear about the mapping part. I am not so sure about 
streaming/uploading near-real-time GPS data from on-site to webserver across 
WPA?
  Cheers, Bill

  On Thu, Mar 27, 2008 at 3:10 PM, Stephen Woodbridge <[EMAIL PROTECTED]> wrote:

Bill,

There are probably many solutions available depending on the various
technical components that you might have in the solution. One possible
solution might be something along these lines:

1) stream data to some service that you probably have to build
2) have said service load the points into a postgres/postgis database
3) create a mapfile with a LAYER to disply the data from postgis
4) Use a client like OpenLayers to render you map from mapserver
5) add a timer event to refresh your map every X secs

-Steve W
 http://imaptools.com/


Bill Wordsworth wrote:
> Please let's not hijack my poor thread :)! Anyway, here's my original
> question:
>
> "How can I upload/stream near-real-time GPS data from on-site to
> webserver/MapServer (MapServer 5.x can read *.gpx)?"
>
> I've been referred to http://franson.com/gpsgate/ from the usenet
> groups. I am looking for something with WPA.
> Cheers, Bill
> On Wed, Mar 26, 2008 at 11:39 AM, Carlos Pinto <[EMAIL PROTECTED]

> > wrote:
>
>
> Hi all,
>
> I'm new in MapServer and I'm using Openlayers that can be a client
> of MapServer.
>
> What I'm trying to set-up is a grid that is in GML file. And I want
> MapServer to build the layer reading the GML file and give it to
> OpenLayers (javascript API) would read it as WMS.
>
> I have instaled MapServer in C#  so I'm using MapScript. Is this
> possible?
>
> Thanks
>
> Carlos
>
> ___
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> mapserver-users@lists.osgeo.org 


> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>
>
> On Wed, Mar 26, 2008 at 11:25 AM, Bill Wordsworth

> <[EMAIL PROTECTED] > wrote:
>
> How can I upload/stream near-real-time GPS data from on-site to
> webserver/MapServer (MapServer 5.x can read *.gpx)?
> Cheers, Bill
>
>

> 

>
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Re: [mapserver-users] Which OS for Mapserver?

[Ken S. Elvehjem]

Ed and Gregor,  

Many thanks for your insights.  I think that this will probably be hosted on a 
Windows Server, if for no better reason than the fact that I have gotten it to 
work there (once;-).  I look forward to a day when I can try it on Linux as 
well.

Sincerely,

Ken
  - Original Message - 
  From: Ed McNierney 
  To: Ken S. Elvehjem ; mapserver-users@lists.osgeo.org 
  Sent: Friday, March 07, 2008 4:21 PM
  Subject: RE: [mapserver-users] Which OS for Mapserver?


  Ken -

   

  If you really have a free choice, use the system you know best.

   

  For most applications, on the same hardware, it's my opinion (having run 
MapServer on both Windows and Linux for a long time) that your ability to 
configure, manage, and maintain your server is far more important.  You do need 
to be sure that all supporting libraries (such as MrSID support) are available 
on your OS of choice, too.  If you can't get MapServer to work properly, it 
makes little difference how well it might have run had you gotten it working!  
If you have substantially more experience with one OS or the other then I would 
highly recommend you stick with that OS unless you find other significant other 
reasons to switch.

   

  -  Ed

   

  Ed McNierney

  Chief Mapmaker

  Demand Media / TopoZone.com

  73 Princeton Street, Suite 305

  North Chelmsford, MA  01863

  Phone: 978-251-4242, Fax: 978-251-1396

  [EMAIL PROTECTED]

   

   

  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken S. Elvehjem
  Sent: Friday, March 07, 2008 3:50 PM
  To: mapserver-users@lists.osgeo.org
  Subject: [mapserver-users] Which OS for Mapserver?

   

  After having established a Mapserver with MS4W on my own computer, which 
works exceedingly well thanks to help from the list, the time has come to start 
housing the MrSid files somewhere else. 

   

  We have located several web hosting services who want to help us.  One in 
particular asked "Do you want it on a Windows or Linux box???"

   

  Now, I realize that flame wars have been started over such innocent 
questions, and I regret having to ask it in this way, but having only a limited 
contact with Linux *myself*  this is really the only efficient way to find out.

   

  I'd especially appreciate hearing from someone who has tried it both ways, 
and can relate their experiences in a short, comparative narrative.

   

  Sincerely,

   

  Ken

   
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[mapserver-users] Which OS for Mapserver?

[Ken S. Elvehjem]

After having established a Mapserver with MS4W on my own computer, which works 
exceedingly well thanks to help from the list, the time has come to start 
housing the MrSid files somewhere else. 

We have located several web hosting services who want to help us.  One in 
particular asked "Do you want it on a Windows or Linux box???"

Now, I realize that flame wars have been started over such innocent questions, 
and I regret having to ask it in this way, but having only a limited contact 
with Linux *myself*  this is really the only efficient way to find out.

I'd especially appreciate hearing from someone who has tried it both ways, and 
can relate their experiences in a short, comparative narrative.

Sincerely,

Ken
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[mapserver-users] temp files

[Ken S. Elvehjem]

Hi,

2 items-- may be interconnected???

I recently set up a WMS mapserver using MS4W.  It works better than I have any 
right to expect, what with it being my first real attempt; would have never 
gotten that far without help from the list.

During the setup phase, I was having the raster data output as PNG files.  
Which looked awful.  Which is because I was used to seeing these aerial photos 
as 24 bit jpeg files.   (the documentation seems to indicate an 8-bit limit on 
png colors...?)

They would dutifully create a temporary png file in the tmp folder.

Then,  I changed my map file and my request URL to indicate jpeg files, which 
works great.  My observation is that my mapserver is no longer storing 
temporary files. 

This also is good news -- because I don't have to delete them -- but I am a 
little worried that they are building up somewhere else -- like in the cooling 
fins on my cpu, or in my power supply ;>)  

Seriously, can someone explain about the apparent 8-bit limit in png files (is 
it true, will it change, etc.) and suggest where the temp files are going?  
Below is the "WEB" section of my .map file...

WEB
  TEMPLATE "SD.html"
   IMAGEPATH "C:\ms4w\Apache\htdocs\tmp/" # have verified the 
correct path!
   IMAGEURL "/tmp/"# and it 
saved png tmp files to it
   
   METADATA
"wms_title"   "WMS McCOOK"
"wms_onlineresource"  "http://206.183.188.202/cgi-bin/mapserv?";
        "wms_srs" "EPSG:26914 EPSG:26914"
   END
  END


Sincerely,

Ken
Ken S. Elvehjem
ELVEHJEM TECHNICAL SUPPORT
250 Drury Ave
PO Box 37
Lowry MN  56349
320.283.5684
320.283.5247 h
320.424.1299 c___
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[mapserver-users] Simple thanks (re: Simple MrSID Map File)

[Ken S. Elvehjem]

Just a note to everyone to say how much I appreciate the availability of this 
list.

A special thanks to Brent Fraser for his help... Was feeling like I had 
wandered into *Looking Glass Land*... But Now...   my MrSID files are served up 
in a WMS server on my office machine... and I know I couldn't have done it 
without his comments, suggestions, and encouragement.

"A patch of ground in South Dakota:" 
http://206.183.188.202/cgi-bin/mapserv.exe?map=c:\ms4w\Apache\htdocs\SD\mccook-wms.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=NAIP2006&STYLES=&SRS=EPSG:4269&BBOX=611300,4815500,613300,4817500&WIDTH=800&HEIGHT=800&FORMAT=image/jpeg

Sincerely,

Ken
Ken S. Elvehjem
ELVEHJEM TECHNICAL SUPPORT
250 Drury Ave
PO Box 37
Lowry MN  56349
320.283.5684
320.283.5247 h
320.424.1299 c___
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Re: [mapserver-users] Simple MrSid map file

[Ken S. Elvehjem]

Brent,

Thanks for the response.  I appreciate the *watch* items you included! and I 
think that I have all that info available.


I think my main problem is that I cannot separate out what is *nice* in a 
mapfile from what is *necessary* ... most of the examples I have been able 
to find have multiple layers, labels, scales etc. that I may use one day, 
but I have to comment them out because they don't apply.  It's why I'm 
trying to find the world's simplest mapfile that works for displaying raster 
data... MrSID data if possible.  A sort of a "Hello Raster (world)" Mapfile 
for Mapserver.


I have been reading more about mapfiles @ 
http://umn.mapserver.ch/index_en.php .  This has an astonishing amount of 
information and is well organized.


Perhaps I should wait until I am over this bad head cold before I plow back 
into it   ;>)


Sincerest thanks!

Ken



- Original Message - 
From: "Brent Fraser" <[EMAIL PROTECTED]>

To: "Ken S. Elvehjem" <[EMAIL PROTECTED]>
Cc: 
Sent: Sunday, February 10, 2008 8:03 PM
Subject: Re: [mapserver-users] Simple MrSid map file



Ken,

 I don't use MrSID, but here are some general things to look at:

1. Does your MrSID file have geo-referencing and coordinate system
definition information with it?  Use GDAL's "gdalinfo" to find out.

2. Do your EXTENTS (with the related PROJECTION and UNITS) in the map file
actually cover/intersect the MrSID file?

3. Check your DATA value in the map file's LAYER.  Is the path correct?
Is Mapserver able to access the file?

Brent Fraser
GeoAnalytic Inc.
Calgary, Alberta



Hi,

I am trying to make ms4w show me a MrSid file.  Eventually, I would like
to be able to send center coordinates and dimensions and have it return a
JPG.

For now, however, I have apparently gotten into a tail chasing game -- no
matter what I try, I seem to need to do something else first.

I'm hoping that someone who uses MrSid files w/ ms4w could send me a
"simplest" map file and html code that will allow me to display MrSid 
data

over the web.  This will give me a "solid place to stand"  (or a safe
position for a retreat) and I can add components and code from there.

My MrSid file happens to be the NAIP file for McCook Co, SD.  The file
structure is like this:  SD/mccook/. files here.

Sincerely,

Ken


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[mapserver-users] Simple MrSid map file

[Ken S. Elvehjem]

Hi,

I am trying to make ms4w show me a MrSid file.  Eventually, I would like to be 
able to send center coordinates and dimensions and have it return a JPG. 

For now, however, I have apparently gotten into a tail chasing game -- no 
matter what I try, I seem to need to do something else first.

I'm hoping that someone who uses MrSid files w/ ms4w could send me a "simplest" 
map file and html code that will allow me to display MrSid data over the web.  
This will give me a "solid place to stand"  (or a safe position for a retreat) 
and I can add components and code from there.

My MrSid file happens to be the NAIP file for McCook Co, SD.  The file 
structure is like this:  SD/mccook/. files here.

Sincerely,

Ken

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