RE: [mapserver-users] subsetted output, but I don't want that
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 -- 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. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
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 -- 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. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] subsetted output, but I don't want that
Le mercredi 09 novembre 2011 20:46:54, Kevin Ward a écrit : 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? PNG has no native support for georeferencing. If it is important for you, then consider using GeoTIFF as output format with GDAL/GTiff : see http://mapserver.org/mapfile/outputformat.html 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 -- 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. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
RE: [mapserver-users] subsetted output, but I don't want that
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 -- 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. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] subsetted output, but I don't want that
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 -- 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. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
RE: [mapserver-users] subsetted output, but I don't want that
In MapServer, if you set a MAP level projection and extent and don't specify a projection for a layer, MapServer assumes that the layer has the same projection as the MAP. 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 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] subsetted output, but I don't want that
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 -- 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. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
