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

[Milo van der Linden]

Steven,

- tiled png should not be a problem, I use that often.
- It would be good to also set "wms_extent" in your layer defs
- I think that setting the wcs_srs to multiple srs-es at the Layer Level
is not how it should be done. Use a single srs there that corresponds to
the wcs_extent or I guess you will have issues. Set the multiple srs-es
at the wcs_srs and wms_srs on the *MAP* level

Good luck! And send my regards to Mvexel ;-)



Steven M. Ottens schreef:
> 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
>