[mapserver-users] subsetted output, but I don't want that

[Kevin Ward]

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
kevin at eyeonclimate.com

http://earthobservatory.nasa.gov/
http://neo.sci.gsfc.nasa.gov/

Twitter http://twitter.com/NASA_EO/
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On Wed, Nov 9, 2011 at 12:06 PM, Rahkonen Jukka
<Jukka.Rahkonen at 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:
>          0.03333333333333
>          0.00000000000000
>          0.00000000000000
>          -0.03333333333333
>          -179.98333333333333
>          89.98333333333333
>
>
> David.
>
>
> -----Original Message-----
> From: Kevin Ward [mailto:kablukiw at gmail.com]
> Sent: Wednesday, November 09, 2011 1:47 PM
> To: Fawcett, David (MPCA)
> Cc: mapserver-users at 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.Fawcett at 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-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of kablukiw
>> Sent: Wednesday, November 09, 2011 1:33 PM
>> To: mapserver-users at 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.map&mode=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
>>
>> --
>> View this message in context: http://osgeo-org.1803224.n2.nabble.com/subsetted-output-but-I-don-t-want-that-tp6979235p6979235.html
>> Sent from the Mapserver - User mailing list archive at Nabble.com.
>> _______________________________________________
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>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>
>>
>>
>
>
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