[mapguide-users] ECWs and MG 2.1

[Jason Birch]

For sure... I haven't had a chance to document it properly though.

The version of GDAL 1.6 bundled with FDO 3.4 (MapGuide 2.1) can be extended with any standard gdal plugin.  For my needs I was able to download all of the files that I wanted from the wonderful OSGeo4W project (http://trac.osgeo.org/osgeo4w/).  I've repackaged these into a zip file that contains all of the support files you'll need EXCEPT FOR the vendor libraries.  You should be able to figure out where the files go from the zipfile structure:

http://www.jasonbirch.com/fdogdal/gdal_wavelet_3.4.zip

I don't feel comfortable distributing the MrSID or ECW redistributable files because of their proprietary licenses and EULAs, so you'll have to download these DLLs yourself and place them in the FDO directory. Instructions for obtaining these follow.

MrSID Support DLLs:

lti_dsdk_cdll.dll
lti_dsdk_dll.dll

These files can be extracted from the OSGeo4W MrSID plugin located here:

http://download.osgeo.org/osgeo4w/release/gdal/gdal16-mrsid/

ECW Support DLLS (not sure if all of these are required for read-only):

NCScnet.dll
NCSEcw.dll
NCSEcwC.dll
NCSUtil.dll

These files can be downloaded from the ECW SDK; instructions on obtaining this are available on the OSGeo4W package page:

http://trac.osgeo.org/osgeo4w/wiki/pkg-gdal-ecw

If you don't feel comfortable using my re-bundle of the OSGeo4W packages, you can grab the individual plugins and their dependencies here:

ECW:
http://download.osgeo.org/osgeo4w/release/gdal/gdal16-ecw/

MrSID:
http://download.osgeo.org/osgeo4w/release/gdal/gdal16-mrsid/

LibGeoTIFF:
http://download.osgeo.org/osgeo4w/release/libgeotiff/

LibTIFF:
http://download.osgeo.org/osgeo4w/release/libtiff/

LibJPEG:
http://download.osgeo.org/osgeo4w/release/jpeg/libjpeg/

ZLib:
http://download.osgeo.org/osgeo4w/release/zlib/

Hope this helps; if someone has time to update the raster notes with this information it would be appreciated...

BTW, I haven't tested this, but adventurous folks might be interested that GDAL 1.6 supports Oracle Raster, and this plugin may do the trick:

http://trac.osgeo.org/osgeo4w/wiki/pkg-gdal16-oracle
http://download.osgeo.org/osgeo4w/release/gdal/gdal16-oracle/

Jason
________________________________________
From: Danfri
Sent: Tuesday, May 26, 2009 5:21 PM
To: mapguide-users at lists.osgeo.org
Subject: [mapguide-users] ECWs and MG 2.1

It appears that since upgrading to 2.1 (from 2.0.2), the ECW raster images I
was previously using are no longer displayed on my map.  Is this due to the
FDO version changing from 3.3 to 3.4?  I have installed the files found at
that were working with 2.0.2 found at
http://trac.osgeo.org/fdo/wiki/FdoGdalNotes, but to no avail.

Has anyone had success displaying ECW files in 2.1?  I appreciate any help
you can provide.