Thank you Jukaa -- the wms_extent did the trick for dealing with a
projection-less file. I was able to use a geotiff without the
wms_extent and it worked, of course.
Thank you all for your comments, that got me out of this initial mud
hole. On to more exciting things...
Kevin
Kevin Ward
NASA's Earth Observatory
Sigma Space Corporation
ke...@eyeonclimate.com
http://earthobservatory.nasa.gov/
http://neo.sci.gsfc.nasa.gov/
Twitter http://twitter.com/NASA_EO/
Facebook http://www.facebook.com/NASAEarthObservatory
On Wed, Nov 9, 2011 at 12:06 PM, Rahkonen Jukka
jukka.rahko...@mmmtike.fi wrote:
Hi,
Nowadays it is also possible to use the layers wms_extent metadata, see
http://mapserver.org/ogc/wms_server.html. So Kevin was actually rather close
with his assumption and
wms_extent -180 -90 180 90 should make the image to behave correctly.
However, I would absolutely add also map level and layer level PROJECTION
blocks.
-Jukka Rahkonen-
Fawcett, David wrote:
Kevin,
You could create a world file. Here is a reference for the world file
format: http://www.gdal.org/frmt_various.html#WLD
According to the gdal docs, a world file with an extension of .pgw, .pngw,
or .wld will be read. http://www.gdal.org/frmt_various.html#PNG
As an example, the world file associated with this global raster from Natural
Earth II
http://www.naturalearthdata.com/downloads/50m-natural-earth-2/50m-natural-earth-ii-with-shaded-relief-and-water/
Contains the below text:
0.03
0.00
0.00
-0.03
-179.98
89.98
David.
-Original Message-
From: Kevin Ward [mailto:kablu...@gmail.com]
Sent: Wednesday, November 09, 2011 1:47 PM
To: Fawcett, David (MPCA)
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] subsetted output, but I don't want that
No, it's just a plain PNG. I was operating under the assumption that
the EXTENT and UNITS parameters in the mapfile would define the
coordinates of the source image but perhaps that is only constraining
the output?
If that is the case, how can I go about providing georeference for an
image such as that?
Kevin
On Wed, Nov 9, 2011 at 11:35 AM, Fawcett, David (MPCA)
david.fawc...@state.mn.us wrote:
Is the raster georeferenced? It kind of sounds like it is using pixel
coordinates instead of coordinates from a spatial reference system.
What do you get if you run gdalinfo on the image file?
David.
-Original Message-
From: mapserver-users-boun...@lists.osgeo.org
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of kablukiw
Sent: Wednesday, November 09, 2011 1:33 PM
To: mapserver-users@lists.osgeo.org
Subject: [mapserver-users] subsetted output, but I don't want that
I am new to mapserver and am experiencing difficulty with the output being
generated by mapserv.exe (using OSGeo4W). The output I am getting is showing
a subset of the original image even though I am not specifying any extents
that would indicate I want anything other than the full image.
The source file is a global image 1440x720 and the output I get is also
1440x720 but is showing only the bottom left 180x90 pixels of the source
image resized to 720x360 and placed in the upper right of the output image.
http://osgeo-org.1803224.n2.nabble.com/file/n6979235/test.png example output
It seems as if the EXTENT is affecting the extent of the output but I'm not
sure how. I am currently testing this from the cmd line with the following
(I have seen the same issue when testing this mapfile with OpenLayers):
mapserv.exe -nh
QUERY_STRING=map=c:/OSGeo4W/apache/htdocs/kevin/lst.mapmode=map
test.png
My map file:
MAP
NAME LST
SIZE 1440 720
EXTENT -180 -90 180 90
UNITS DD
SHAPEPATH c:/OSGeo4W/apache/htdocs/kevin/
IMAGECOLOR 255 255 255
IMAGETYPE PNG
STATUS ON
DEBUG ON
LAYER
NAME LST
TYPE RASTER
STATUS DEFAULT
DATA lst_1440.png
OFFSITE 0 0 0
END # LAYER
END # MAP
Any suggestions would be greatly appreciated. Thanks,
Kevin
--
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