[leveller] Re: Points vs. areas in GDAL
- From: Ray Gardener <rayg@xxxxxxxxxxxxxxxxxx>
- To: leveller@xxxxxxxxxxxxx
- Date: Thu, 07 Feb 2008 17:12:42 -0800
GDAL's GeoTIFF driver has been locally patched for Leveller 2.6.2. If a
RasterPixelIsPoint geokey is set, the projection origin will be shifted
to conform to GDAL's pixels-as-areas when reading. RasterPixelIsArea is
always used when writing (the driver will set RasterPixelIsPoint if it
is given the GDALMD_AREA_OR_POINT = GDALMD_AOP_POINT metadata tag, but
Leveller 2.6.2 does not set this tag).
DTED driver was okay.
BT driver was wrong, has been fixed w/ update to gdal.org in the gdal
1.5 branch.
That's pretty much it. Other GDAL drivers may still be in error, but
will be handled incrementally.
Ray
Other related posts: