[MAPSERVER-USERS] Accessing GDAL raster in MapServer

[Jeff McKenna]

hmm.  I would do the following for testing:

- remove all projection objects
- remove MAXSIZE and RESOLUTION (in case they are causing trouble)
- use gdalinfo commandline utility to get the exact extents of the  
image (and to make sure your image can be read by your GDAL version)
- make sure the UNITS value is set to the correct value
- use the shp2img commandline utility for testing


--jeff




On 29-May-08, at 6:33 AM, Pål Kristensen wrote:

>
> Hi!
>
> I'm trying to serve some CADRG (A.toc) data through MapServer, but I'm
> obviously doing something wrong because all I get is some error  
> messages in
> the logfile. I'm currently using the latest MS4W release.
>
> This is how the mapfile looks like:
> MAP
>    NAME "Rendertest"
>    STATUS ON
>    SIZE 800 500
>    DEBUG 4
>    #IMAGETYPE PNG
>    #IMAGECOLOR 255 255 255
>    #SYMBOLSET "c:/ms4w/sym/symbols/SKsym.sym"
>    #FONTSET "c:/ms4w/sym/skfonts/font.list"
>    EXTENT -1 53 53 68
>    SHAPEPATH "E:/RPF_test/"
>    UNITS dd
>    MAXSIZE 2048
>    RESOLUTION 96
>
>    PROJECTION
>      "init=epsg:4326"
>    END
>    WEB
>        IMAGEPATH "C:/ms4w/tmp/ms_tmp/"
>        IMAGEURL "/ms_tmp/"
>        METADATA
>            "ows_schemas_location" "http://schemas.opengeospatial.net"
>            "ows_accessconstraints" "Copyright Statens kartverk 2007"
>             "wms_srs" "EPSG:4326 EPSG:27391 EPSG:27392 EPSG:27393
> EPSG:27394 EPSG:27395 EPSG:27396 EPSG:27397 EPSG:27398 EPSG:3034  
> EPSG:32635
> EPSG:32633 EPSG:32634 EPSG:32631 EPSG:32636 EPSG:32632"
>            "ows_exceptions_format" "application/vnd.ogc.se_xml"
>        END
>    END
>   LAYER
>      NAME "Test"
>      DEBUG 4
>      STATUS ON
>      DATA "rpf/a.toc"
>      TYPE RASTER
>      #MINSCALE 3000000
>      #PROCESSING "RESAMPLE=AVERAGE"
>      #PROCESSING "RESAMPLE=BILINEAR"
>      #PROCESSING "RPFTOC_FORCE_RGBA=TRUE"
>      METADATA
>         "wms_title" "Test"
>      END
>      PROJECTION
>         "init=epsg:4326"
>      END
>   END
> END
>
> And this is the error message:
> [Thu May 29 12:11:41 2008].641000 CGI Request 1 on process 1516
> [Thu May 29 12:11:41 2008].688000 msDrawRasterLayerLow(Test):  
> entering.
> [Thu May 29 12:11:42 2008].125000 msResampleGDALToMap in effect:  
> cellsize =
> 0.053997
> [Thu May 29 12:11:42 2008].125000 msDrawGDAL(Test): using  
> RAW_WINDOW=805 0
> 95841 47616
> [Thu May 29 12:11:42 2008].125000 msDrawGDAL(): red,green,blue,alpha  
> bands =
> 1,0,0,0
> [Thu May 29 12:11:42 2008].125000 msDrawMap(): Image handling error.  
> Failed
> to draw layer named 'Test'.
> [Thu May 29 12:11:42 2008].125000 msFreeMap(): freeing map at 01535F40
>
> I would really appreciate any help on this issue?
>
> Regards,
> Pål Kristensen
> -- 
> View this message in context: http://www.nabble.com/Accessing-GDAL-raster-in-MapServer-tp17532414p17532414.html
> Sent from the Mapserver - User mailing list archive at Nabble.com.
>
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---
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/