[mapserver-users] Question on Validation Blocks

Stephen Woodbridge woodbri at swoodbridge.com
Fri Mar 14 13:22:25 PDT 2014


On 3/14/2014 2:08 PM, Humberto Cereser Ibanez wrote:
> Hi Steve,
>
> Em Sex, 2014-03-14 às 11:25 -0400, Stephen Woodbridge escreveu:
>> Hi all,
>>
>> I'm trying to construct a mapserver URL to fetch an image from php. I'm
>> change some of the mapfile parameters in the url. Do I need validation
>> blocks for these changes? I assume I do not because I am getting a scale
>> bar. I'm only getting a blank image.
>>
> I think your assumption is right, because I changed the map.projection
> and MAPXY parameter and the URL worked
>
> http://imaptools.com:8080/cgi-bin/mapserv?mode=map&map.projection=init=epsg:4326&map=/u/data/tiger2013-maps/tiger2013-mc.map&layers=all&imagetype=jpeg&MAPSIZE=541+522&map.scalebar=status+embed+units+feet&SCALEDENOM=3000&MAPXY=-71.38764+42.61986

Right I tried that also, and I tried putting in an invalid projections 
and it threw an appropriate error so I think the syntax is correct.

>> http://imaptools.com:8080/cgi-bin/mapserv?mode=map&map.projection=init=epsg:900913&map=/u/data/tiger2013-maps/tiger2013-mc.map&layers=all&imagetype=jpeg&MAPSIZE=541+522&map.scalebar=status+embed+units+feet&SCALEDENOM=3000&MAPXY=-7946835.7326273+5254288.4981293
>>
>> The projection for the map object is epsg:4326 in the mapfile.
>> I appear to be getting a png image despite the request for a jpeg?
>>
>> MapServer version 6.2.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ
>> SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO
>> SUPPORTS=SVG_SYMBOLS SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER
>> SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT
>> SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI
>> SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR
>> INPUT=GDAL INPUT=SHAPEFILE
>>
>> The MAPXY should be equivalent to -71.38764, 42.61986 if I did the
>> conversion correctly.
>>
>> Any idea what I'm doing wrong here?
> May be nothing wrong, but the lack of projection in each layer of your
> WMS mapfile. Just a guess.

It as projection block in all layers. And I can change the projection in 
WMS, so this seems like a bug in CGI. The bug might be in my 
understanding of things :)

Looking more like a bug at this point.

-Steve W

>>
>> And it works if I don't change the projection:
>>
>> http://imaptools.com:8080/cgi-bin/mapserv?mode=map&map=/u/data/tiger2013-maps/tiger2013-mc.map&layers=all&MAP_IMAGETYPE=jpeg&MAPSIZE=541+522&map.scalebar=status+embed+units+feet&SCALEDENOM=3000&MAPXY=-71.38764+42.61986
>>
>> And it works as WMS:
>>
>> http://imaptools.com:8080/cgi-bin/mapserv?MAP=%2Fu%2Fdata%2Ftiger2013-maps%2Ftiger2013.map&FORMAT=image%2Fjpeg&MAP_IMAGETYPE=jpeg&LAYERS=Tiger_2013&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A900913&BBOX=-7947363.3342296,5253914.7041195,-7946527.3042538,5254571.5848149&WIDTH=700&HEIGHT=550
>>
>> Thanks,
>>     -Steve
>> _______________________________________________
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>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>
> Best regards,
>
> Humberto Cereser Ibanez
>



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