[ms4w-users] mr sid

Jeff McKenna jmckenna at dmsolutions.ca
Wed Jan 31 14:38:19 EST 2007


As you mentioned, since MS4W 2.1 the MrSID support has been build into 
this GDAL build (no plugin is needed anymore).

I have MS4W 2.2.2 and just tested a MrSID image in gdalinfo and in a 
MapServer mapfile with no problems.


 >gdalinfo --formats
Supported Formats:
   MrSID (ro): Multi-resolution Seamless Image Database (MrSID)
   RMF (rw+): Raster Matrix Format
   WCS (ro): OGC Web Coverage Service
   MSGN (ro): EUMETSAT Archive native (.nat)
   RST (rw+): Idrisi Raster A.1
   RIK (ro): Swedish Grid RIK (.rik)
   USGSDEM (rw): USGS Optional ASCII DEM (and CDED)
   GXF (ro): GeoSoft Grid Exchange Format
   HDF5 (ro): Hierarchical Data Format Release 5
   HDF5Image (ro): HDF5 Dataset

 >gdalinfo 9768-07.sid |more
Driver: MrSID/Multi-resolution Seamless Image Database (MrSID)
Size is 5000, 5000
Coordinate System is `'
Origin = (1965000.000000000000000,790000.000000000000000)
Pixel Size = (0.500000000000000,-0.500000000000000)

mapfile layer

   NAME mrsid
   DATA "9768-07.sid"


Kevin Flanders wrote:
> Frank,
> Well, these images did work with my older ms4w....when I had to setup the
> sdk under the gdalplugins and register this location.  I did not see such
> instructions with the latest ms4w....but I have done this anyways, with no
> change in results.  I am running Chameleon, and getting a php error when
> turning on these sids.
> Is this setup still required, or is the sid support built-in at a deeper
> level now?
> Kevin
> -----Original Message-----
> From: Frank Warmerdam [mailto:warmerdam at pobox.com]
> Sent: Wednesday, January 31, 2007 1:28 PM
> To: Kevin Flanders
> Cc: ms4w-users at lists.maptools.org
> Subject: Re: [ms4w-users] mr sid
> Kevin Flanders wrote:
>> My ms4w 2.1 setup is not supporting mr. sid imagery.  The sid files I
>> have were created years ago....and I am wondering if the latest sid
>> support is only for the latest sid format?  I realize that the sid
>> plugins are being handled differently in this ms4w 2.1 version....but how?
> Kevin,
> I am reasonably sure that the recent MrSID SDK is supposed to support all
> the older .sid formats.  Lizardtech is quite careful about this sort of
> thing.
> So perhaps there is another issue?
> Best regards,
> --
> ---------------------------------------+------------------------------------
> --
> I set the clouds in motion - turn up   | Frank Warmerdam,
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | President OSGeo, http://osgeo.org

Jeff McKenna
DM Solutions Group Inc.

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