[mapguide-users] Preliminary MrSID and ECW Support

[Marc Pfister]

Frank Warmerdam wrote: 

"If you are interested in seeing some details of what is going on, you
might want to run mapguide interactively, with GDAL debugging turned
on."

Aha! Looks like GDAL doesn't like decoding one of the tiles, and any
relationship to alphabetical order is coincidental.


GDAL: GDALOpen(c:\data\gdal/Tile9.sid) called.
MrSID: Opened zoom level 1 with size 4750x6400.

MrSID: Opened zoom level 2 with size 2375x3200.

MrSID: Opened zoom level 3 with size 1188x1600.

MrSID: Opened zoom level 4 with size 594x800.

MrSID: Opened zoom level 5 with size 297x400.

MrSID: Opened zoom level 6 with size 149x200.

MrSID: Opened zoom level 7 with size 75x100.

MrSID: Opened zoom level 8 with size 38x50.

MrSID: Opened zoom level 9 with size 19x25.

MrSID: Opened zoom level 0 with size 9500x12800.

MrSID: Opened image: width 9500, height 12800, bands 3
GDAL: GDALOpen(c:\data\gdal/Tile9.sid) succeeds as MrSID.

MrSID: RasterIO() - using optimized dataset level IO.
MrSID: Dataset:IRasterIO(0,0 9500x12800 -> 1188x1600 -> 728x450, zoom=8)
MrSID: RasterIO() - using optimized dataset level IO.
MrSID: Dataset:IRasterIO(0,0 9500x12800 -> 1188x1600 -> 728x450, zoom=8)
MrSID: RasterIO() - using optimized dataset level IO.
MrSID: Dataset:IRasterIO(0,0 9500x12800 -> 1188x1600 -> 728x450, zoom=8)
ERROR 1: MrSIDRasterBand::IRasterIO(): Failed to load image.
Error decoding image [8022]

Next I'll look into the local/remote folder problem I'm having. Thanks
Frank for the advice.

Marc Pfister