Hi,
Tough question, as the problem can has many origins, or even multiple
origins...
Having seen your .map, I assume that the main parameters are correct.
Maybe one first pointto check is the scale : the getCapabilities says
for raster100 : <ScaleHint min="40000" max="160000"/>
and you set in your layer section scales from 500 to 20000.
I don't think your initial extent (3037978.75 6622010.94 3767454.98
7790000) falls into that. Can you try with a more adequate extent ?
Also, you are requesting a jpeg image from the wms server to render your
map in png. Try to ask for png as the server allows that.
Hint : to test a mapfile directly, you can use shp2img which will try to
draw the image as defined in the mapfile. use shp2img -o test.png to get
the resulting image into test.png file.
Hope that helps,
Guillaume
GoneWacko a écrit :
Hello,
I am currently working on a project where I’m trying to use Mapserver as
a WMS client, intending to have Mapserver handle the overlaying of data
for me. The WMS service I’m going to be using one licensed from the
National Land Survey of Finland.
This server only supports HTTPS connections and requires Basic
Authorization to get data from the service. This may prove to be an
issue for me in the future, but at the moment I’m having (what I suspect
to be) a different problem.
When I test my Map file, which to the best of my (currently limited)
knowledge of Mapserver, should work, I only get entirely white images
back from the mapserv binary. I’ve not yet figured out how to get
mapserv to do verbose logging, but the logging it does so far does not
show me what the issue might be.
I’ve been trying to get it to work on linux, but then when it didn’t I
tried it on my local windows machine as well. Both machines display the
same white image.
The output of my mapserv –v invocations:
On Linux:
MapServer version 5.0.2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER
SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT
SUPPORTS=GEOS INPUT=EPPL7 INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
On Windows:
MapServer version 5.0.2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG
SUPPORTS=FREETYPE 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 map file I’m using can be found at the following location:
http://www.gonewacko.com/work/finland.map
For more information about the capabilities of the WMS Server I’m trying
to connect to, I’ve uploaded the results of a GetCapabilities request
here: http://gonewacko.com/work/GetCapabilities.xml (Most of the text is
in Finnish; Which I don’t actually understand myself, but luckily it’s
not too relevant).
The URL I’ve been using to test it has usually just been
http://example.com/cgi-bin/mapserv?map=/path/to/finland.map&mode=map
<http://example.com/cgi-bin/mapserv?map=/path/to/finland.map&mode=map>.
My theories are
- The map has been set up in such a way that mapserv
finds it’s not within the area I’m requesting, and as such does not
attempt to render it.
- The map has just been set up incorrectly (most likely)
Note that the only files I have are the map file. I do not have any
shape files or anything of that nature. And apart from the censored
login information in the URLs, the map file is available in its entirety.
Also note that I’ve tried replacing the WMS URLs with something that is
not a https url (i.e. a normal http url), as well as omitting the
authorization data. It still wouldn’t send a request to the URL.
Can anyone shed some light on what I’m doing wrong? Thanks in advance.
Best Regards,
Stijn Gijsen
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