[mapserver-users] UNION raster layers returns blank image
Hi All, I have been having some issues using the UNION option in the mapfile. I'm trying to set up a WMS server with several source raster layers and provide them all as a single union layer to the client. I don't want the source layers visible in the GetCapabilities, only the union layer so I have been using a combination of the own_enable_request and CONNECTIONTYPE UNION. It seems to work in the GetCapabilites, only the union layer appears however only blank images are returned from the GetMap requests. The layers portion of my mapfile is below, I have set the ows_enable_request * in the WEB METADATA. Any help would be much appreciated # York Region 2009 - Union LAYER NAME 0937york_union TYPE RASTER CONNECTIONTYPE UNION CONNECTION 0937york_1km_mstif,0937york_5km_mstif,0937york_10km_mstif,0937york_overall_mstif METADATA wms_title York Region UNION wms_extent 594999 4842001 64 4918001 END CLASS END PROJECTION init=epsg:26917 END END # York Region 2009 - 15cm LAYER NAME 0937york_1km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_1km_mstif/york_1km_mstindex TILEITEM location MAXSCALEDENOM 7500 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_5km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_5km_mstif/york_5km_mstindex TILEITEM location MINSCALEDENOM 7500 MAXSCALEDENOM 4 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_10km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_10km_mstif/york_10km_mstindex TILEITEM location MINSCALEDENOM 4 MAXSCALEDENOM 40 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_overall_mstif TYPE RASTER DATA /var/local/data/0937YORK_overall_mstif/0937YORK_100m_overall.tif MINSCALEDENOM 40 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END Regards ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] UNION raster layers returns blank image
Hi, The union layer approach is working only for the vector based layers at the moment. Best regards, Tamas 2011/10/3 Travis Kirstine traviskirst...@gmail.com Hi All, I have been having some issues using the UNION option in the mapfile. I'm trying to set up a WMS server with several source raster layers and provide them all as a single union layer to the client. I don't want the source layers visible in the GetCapabilities, only the union layer so I have been using a combination of the own_enable_request and CONNECTIONTYPE UNION. It seems to work in the GetCapabilites, only the union layer appears however only blank images are returned from the GetMap requests. The layers portion of my mapfile is below, I have set the ows_enable_request * in the WEB METADATA. Any help would be much appreciated # York Region 2009 - Union LAYER NAME 0937york_union TYPE RASTER CONNECTIONTYPE UNION CONNECTION 0937york_1km_mstif,0937york_5km_mstif,0937york_10km_mstif,0937york_overall_mstif METADATA wms_title York Region UNION wms_extent 594999 4842001 64 4918001 END CLASS END PROJECTION init=epsg:26917 END END # York Region 2009 - 15cm LAYER NAME 0937york_1km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_1km_mstif/york_1km_mstindex TILEITEM location MAXSCALEDENOM 7500 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_5km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_5km_mstif/york_5km_mstindex TILEITEM location MINSCALEDENOM 7500 MAXSCALEDENOM 4 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_10km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_10km_mstif/york_10km_mstindex TILEITEM location MINSCALEDENOM 4 MAXSCALEDENOM 40 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_overall_mstif TYPE RASTER DATA /var/local/data/0937YORK_overall_mstif/0937YORK_100m_overall.tif MINSCALEDENOM 40 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END Regards ___ 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] UNION raster layers returns blank image
The union layer is a vector layer, which provides the union of the set of features from multiple layers. The functionality you mention would probably require to add a new layer type which would have effect on the drawing side of the rendering chain (ie. in mapdraw.c). Not sure if this addition would be on the roadmap, unless someone would take over to contribute or support to implement this. A separate RFC would also be required. Best regards, Tamas 2011/10/3 Travis Kirstine traviskirst...@gmail.com Tamas, Thanks for your response, do you know if this is on the roadmap? Regards On 3 October 2011 14:01, Tamas Szekeres szeker...@gmail.com wrote: Hi, The union layer approach is working only for the vector based layers at the moment. Best regards, Tamas 2011/10/3 Travis Kirstine traviskirst...@gmail.com Hi All, I have been having some issues using the UNION option in the mapfile. I'm trying to set up a WMS server with several source raster layers and provide them all as a single union layer to the client. I don't want the source layers visible in the GetCapabilities, only the union layer so I have been using a combination of the own_enable_request and CONNECTIONTYPE UNION. It seems to work in the GetCapabilites, only the union layer appears however only blank images are returned from the GetMap requests. The layers portion of my mapfile is below, I have set the ows_enable_request * in the WEB METADATA. Any help would be much appreciated # York Region 2009 - Union LAYER NAME 0937york_union TYPE RASTER CONNECTIONTYPE UNION CONNECTION 0937york_1km_mstif,0937york_5km_mstif,0937york_10km_mstif,0937york_overall_mstif METADATA wms_title York Region UNION wms_extent 594999 4842001 64 4918001 END CLASS END PROJECTION init=epsg:26917 END END # York Region 2009 - 15cm LAYER NAME 0937york_1km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_1km_mstif/york_1km_mstindex TILEITEM location MAXSCALEDENOM 7500 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_5km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_5km_mstif/york_5km_mstindex TILEITEM location MINSCALEDENOM 7500 MAXSCALEDENOM 4 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_10km_mstif TYPE RASTER TILEINDEX /var/local/data/0937YORK_10km_mstif/york_10km_mstindex TILEITEM location MINSCALEDENOM 4 MAXSCALEDENOM 40 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END LAYER NAME 0937york_overall_mstif TYPE RASTER DATA /var/local/data/0937YORK_overall_mstif/0937YORK_100m_overall.tif MINSCALEDENOM 40 OFFSITE 0 0 0 METADATA ows_enable_request * !GetCapabilities END PROJECTION init=epsg:26917 END END Regards ___ 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
