[mapserver-users] Tiled PNG doesn't work for WCS (and WMS)

[Steven M. Ottens]

Hi all,

I'm trying to setup a WCS with a series of PNGs with world files.  
I've indexed them with gdaltindex.
When I do a WCS getCoverage or a WMS getMap request I get a white  
image. However when I configure mapserver to use only one tile as  
datasource I get an image (black and white in WCS, color in WMS).

Working singletile datasource WMS: http://bit.ly/smpyA
Working singletile datasource WCS: http://bit.ly/1hXghB
not working tiled datasource WMS: http://bit.ly/2k5J11

I'm running Mapserver 5.0.2 on windows

I've tried to convert the PNGs to geotiff, but that didn't matter.
I've tried using Geoserver and there it does work, so the data  
appears to be correct.

Does mapserver support tiled PNGs?
Does it support it for WCS?

Regards,
Steven

The configuration for the two layers::
single tiledatasource:
LAYER
   NAME vec200tile
   METADATA
     "wcs_label"           "Swiss Topo Vec200 rendering for Tripod"   
### required
     "wcs_rangeset_name"   "Vector200Range"               ###  
required to support DescribeCoverage request
     "wcs_rangeset_label"  "Vec200"              ### required to  
support DescribeCoverage request
	"wcs_extent"						"463179.500000 44100.500000 853179.500000  
324100.500000" ### required for tiled datasets [MVEXEL]
	"wcs_res"							"1 1" ### from gdalinfo, undocumented metadata element
	"wcs_size"							"10000 10000" ### from gdalinfo, undocumented  
metadata element
	"wcs_srs"							"EPSG:21781 EPSG:3035"
   END
   EXTENT 463179.500000 44100.500000 853179.500000 324100.500000

     TEMPLATE "blank.html"
     TYPE RASTER
     UNITS METERS
     STATUS ON
  data "RT_Vec200_1500/1.0/vec200_1500_0_108.png"
   PROJECTION
     "init=epsg:21781"
   END
   DUMP TRUE ### required
END

tiled datasource:

LAYER
   NAME vec200
   METADATA
     "wcs_label"           "Swiss Topo Vec200 rendering for Tripod"   
### required
     "wcs_rangeset_name"   "Vector200Range"               ###  
required to support DescribeCoverage request
     "wcs_rangeset_label"  "Vec200"              ### required to  
support DescribeCoverage request
	"wcs_extent"						"463179.500000 44100.500000 853179.500000  
324100.500000" ### required for tiled datasets [MVEXEL]
	"wcs_res"							"1 1" ### from gdalinfo, undocumented metadata element
	"wcs_size"							"10000 10000" ### from gdalinfo, undocumented  
metadata element
	"wcs_srs"							"EPSG:27181 EPSG:3035"
   END
   EXTENT 463179.500000 44100.500000 853179.500000 324100.500000

     TEMPLATE "blank.html"
     TYPE RASTER
     UNITS METERS
     STATUS ON
   TILEINDEX RT_Vec200_1500/1.0/sh1.0.shp
   TILEITEM "filename"

   PROJECTION
     "init=epsg:21781"
   END
   DUMP TRUE ### required
END

-- 
Steven M. Ottens -==- http://research.geodan.nl/