Andrew Hughes wrote:
Firstly.... is there a way to turn debugging on???

    My only debug message is "msDrawMap(): Failed to draw layer named
    'ecw'."  Which is kind of obvious ;) ...

Andrew,

You would add "DEBUG ON" to your layer definition.

However, I see your version string lacks DEBUG=MSDEBUG, so I don't think
the debug information will work anyways.

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Secondly... perhaps there is something wrong with my layer definition (my other layers in this file work perfect)???

    LAYER
      NAME "ecw"
      DATA "/var/ecw/my.ecw"
      TYPE RASTER
      STATUS ON
      MINSCALE 00000.0
      MAXSCALE 1000000.0
    END

This looks fine assuming the scales make sense, and that in actual
use you are enabling the raster layer (STATUS DEFAULT will force it
on).

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Thirdly, perhaps my "FGS" installation does not allow me to read ecw????????

    azzabox:/opt/fgs# ./www/cgi-bin/mapserv -v
    MapServer version 4.6.0-beta2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
    OUTPUT=WBMP OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE
    SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
    SUPPORTS=WFS_CLIENT INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR INPUT=GDAL
    INPUT=SHAPEFILE

You can't tell from the "mapserv -v" report whether GDAL or OGR are
built with particular formats.  If you have installed the GDAL utilities
in your FGS tree as well, you can use "gdalinfo --formats" to list them
all or "gdalinfo --format ecw" to check if ECW is enabled.  I suspect FGS
does not include ECW.

Also 4.6.0 beta2 is a bit oldish now.  Perhaps you should consider
updating to the latest fgs builds.

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Finally, while I have you attention I know there are several free and public datasources.... I have found some Landsat available here: http://www.geotorrent.org/ and would welcome any further data sources!

Yes, I've got a mapserver based WMS running with one of the big south american
landsat ecw files off geotorrent.org, as a sort of proof of concept.

  http://maps.gdal.org/

It *can* be done even if it is not trivial.

PS. The mapserver distributed in FWTools for linux does include ECW
support - http://fwtools.maptools.org/  That's what I'm using on maps.gdal.org
I believe.

Best regards,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, [EMAIL PROTECTED]
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