GDAL raster access and shapepath

Thu May 18 05:55:53 EDT 2006

Some more information on this issue.

If we use GDAL to access a TIFF file, SHAPEPATH is used.
If we use GDAL to access an ECW file, SHAPEPATH is not used!

How is this possible?

TIFF:
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45] GDAL:
GDALOpen(/data/geopakhuis/ahn_100/geogegevens/raster/landsdekkend/ahn_100.au
x) succeeds as HFA.
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45]
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45] GDAL:
GDALClose(/data/geopakhuis/ahn_100/geogegevens/raster/landsdekkend/ahn_100.a
ux)
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45]
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45] GDAL:
GDALOpen(/data/geopakhuis/ahn_100/geogegevens/raster/landsdekkend/ahn_100.ti
f) succeeds as GTiff.
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45]
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45] GDAL:
GDALClose(/data/geopakhuis/ahn_100/geogegevens/raster/landsdekkend/ahn_100.t
if)
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45]
[Thu May 18 12:01:18 2006] [error] [client 145.50.148.45] GDAL:
GDALDeregister_GTiff() called.

ECW:
[Thu May 18 12:02:24 2006] [error] [client 145.50.148.45] Thu May 18
12:02:24 2006 - msDrawRaster(): Unable to access file.
(ahn_100/geogegevens/raster/landsdekkend/ahn_100.ecw)

Best regards,
Bart

-----Oorspronkelijk bericht-----
Van: UMN MapServer Users List
[mailto:MAPSERVER-USERS at LISTS.UMN.EDU]Namens Bart van den Eijnden
(OSGIS)
Verzonden: woensdag 17 mei 2006 15:41
Aan: MAPSERVER-USERS at LISTS.UMN.EDU
Onderwerp: [UMN_MAPSERVER-USERS] GDAL raster access and shapepath

Hi list,

using Mapserver 4.8.3 and GDAL 1.3.2 we have a problem accessing an ECW
file relative to the SHAPEPATH. If we use an absolute path in the DATA
statement all works fine.

So:

MAP
  SHAPEPATH "/data/geopakhuis/"

and:

LAYER
   DATA "aerogrid_nl2005/Aerogrid_NL2005_40cm.ecw"

does not work (case 1), whereas
   DATA "/data/geopakhuis/erogrid_nl2005/Aerogrid_NL2005_40cm.ecw"

does work (case 2).

Attached the log after setting CPL_DEBUG to ON.

Case 1:
[Wed May 17 15:22:09 2006] [error] [client 145.50.39.34] Wed May 17
15:22:09 2006 - msDrawRaster(): Unable to access file. (ae
rogrid_nl2005/Aerogrid_NL2005_40cm.ecw)

Case 2:
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34] ECW:
NCScbmOpenFileView(/data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2
005_40cm.ecw): eErr = 0
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34] ECW: FileInfo:
SizeXY=690000,800000 Bands=3
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34]       
OriginXY=8000,624000  CellIncrementXY=0.4,-0.4
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34]
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34] ECW:
projection=LOCAL, datum=WGS84
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34] GDAL:
GDALOpen(/data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm.
ecw) succeeds as ECW.
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34]
[Wed May 17 15:21:23 2006] [error] [client 145.50.39.34] ECWRasterBand:
RasterIO(nXOff=270272,nYOff=279099,nXSize=9944,nYSize=
5972 -> 750x450)
[Wed May 17 15:21:24 2006] [error] [client 145.50.39.34] ECWRasterBand:
RasterIO(nXOff=270272,nYOff=279099,nXSize=9944,nYSize=
5972 -> 750x450)
[Wed May 17 15:21:24 2006] [error] [client 145.50.39.34] ECWRasterBand:
RasterIO(nXOff=270272,nYOff=279099,nXSize=9944,nYSize=
5972 -> 750x450)
[Wed May 17 15:21:24 2006] [error] [client 145.50.39.34] GDAL:
GDALClose(/data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm
.ecw)
[Wed May 17 15:21:24 2006] [error] [client 145.50.39.34]
[Wed May 17 15:21:24 2006] [error] [client 145.50.39.34] GDAL:
GDALDeregister_GTiff() called.

Any ideas what could be wrong?

Best regards,
Bart

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