Hi FGDB'ers, just getting started... I'm just trying out ogrinfo under
Linux against various sample data and want to confirm some results...
the file that Michael Smith sent gives me this result:
[pramsey@localhost test-data]$ ogrinfo test_fgdb.gdb
ERROR 1: GDB Error: Error opening \base2_some_lin
Worked for me using the following:
#Change black to white
gdalbuildvrt -srcnodata 0 -vrtnodata 255 to-be-decollared.vrt
to-be-decollared.tif
#Run nearblack -white
nearblack -white -o decollared.tif to-be-decollared.vrt
Luke
-Original Message-
From: gdal-dev-boun...@lists.osgeo.org
[mailt
Hi, I have a question regarding gdalwarp.
We would like to update gdalwarp to be able to be used for DEM files
such that a vertical datum shift can be added to the files, as well as
the horizontal warp. Especially we would want to be able to use the
geoidgrids vertical grid shift option.
As an ex
Le mercredi 27 avril 2011 17:57:26, Matt Wilkie a écrit :
> Hi All,
>
> The geotiff here
> (http://www.maphew.com/Itches/Decollaring_with_nearblack) has two
> collars to be removed. The outermost consists of pure black (0,0,0)
> while the innermost is off-white (ranges from 240 thru 255). I used
>
Hi All,
The geotiff here
(http://www.maphew.com/Itches/Decollaring_with_nearblack) has two
collars to be removed. The outermost consists of pure black (0,0,0)
while the innermost is off-white (ranges from 240 thru 255). I used
gdalsetnull[1] to change 0,0,0 to nodata, then ran `nearblack -whi
Since you are going to PostGIS anyway cleaning in PostGIS is possible.
Here is the 2.0 PostGIS doc,
http://postgis.refractions.net/documentation/manual-svn/ST_MakeValid.html
I think that this PostGIS 2.0 function grows out of an old contrib. I've used
the contrib with great success in the pa
Elijah,
I've used GEOS Buffer function available via the OGR API
(http://www.gdal.org/ogr/classOGRGeometry.html) to clean polygons:
OGRGeometry *poTempGeometry = poGeometry->Buffer(0.0); // Let Geos fix
the problem.
Best Regards,
Brent Fraser
On 4/27/2011 8:36 AM, Elijah Robison wrote
On 4/27/2011 10:36 AM, Elijah Robison wrote:
Hey devs, is anyone aware of an OGR approach to validate/clean
geometries, for instance, as they are being converted from SHP to
PostGRESql?
It's not uncommon to have a handful of invalid geometries (usually
self-intersecting polygons) in a parcel data
Hey devs, is anyone aware of an OGR approach to validate/clean
geometries, for instance, as they are being converted from SHP to
PostGRESql?
It's not uncommon to have a handful of invalid geometries (usually
self-intersecting polygons) in a parcel dataset, and it's impractical to
correct them
Note that it will sacrify binary compatibility against casual builds.
You will need to build against the Debian version of GDAL, not third
parties builds.
For casual builds, we have another solution : don't use
hide-internal-symbols, and install the tiff/geotiff headers from gdal
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