gdal_translate -of VRT input.tif output.vrt -b 1 -b 2 -b 3
Mike, you can try to adapt that call to a for loop if it does what you expect.
> ---Original Message---
> From: Smith, Michael
> To: gdal-dev@lists.osgeo.org
> Subject: Re: [gdal-dev] how to gdalwarp 4-band orthoimagery
>
Anyone looked at the trying to read in the geosoft.com file formats (.gdb) used
in their mineral and oil/gas exploration software.
They already have ERMapper and ArcGIS extensions as well as an SDK, though I
don't know how deep it goes..
http://www.geosoft.com/support/downloads/developer-resou
>
> And secondly the other method (using VRTs) how would one then automate that
> (to do, say 1000 tiles in a script). The editing of the VRT would be the
> tricky part.
sed "s/Alpha<\/ColorInterp>//" should do it
But actually I think that if you just want to mosaic files in the same
projecti
Thanks Evan
BUT
Firstly in my binaries-only install I don't see any .cpp files
And secondly the other method (using VRTs) how would one then automate that (to
do, say 1000 tiles in a script). The editing of the VRT would be the tricky
part.
==
Michael Smit
Le vendredi 14 décembre 2012 19:17:07, Smith, Michael a écrit :
> Seems like this is a straightforward issue but finding it difficult to
> solve online.
>
>
>
> I have a new crop of 4-band orthoimages, as GeoTIFFs. I want to create
> mosaics of some tiles. There is a slight pixel overlap at th
Seems like this is a straightforward issue but finding it difficult to solve
online.
I have a new crop of 4-band orthoimages, as GeoTIFFs. I want to create mosaics
of some tiles. There is a slight pixel overlap at the edges. When I run
gdalwarp it always treats the 4th band as alpha, which
Hi,
GDALDataset::RasterIO pass the request off to each band objects
rasterio methods with appropriate arguments
In GDALRasterBand::RasterIO
(http://www.gdal.org/classGDALRasterBand.html#a5497e8d29e743ee9177202cb3f61c3c7)
"Some formats may efficiently implement decimation into a buffer by
r
Hi list,
This should simple, but I failed to make it work. I simply want a black
pixels in a RGB GeoTIFF to become transparent or white. Using GDAL 1.6.3.
I'm trying
gdalwarp -srcnodata 0 -dstalpha in.tif out.tif
I also tried (since it's RGB)
gdalwarp -srcnodata "0 0 0" -dstal
Selon Ethan Alpert :
> I'm running in to a situation where I believe the filesystem cache
> settings are screwing things up. Based on iozone tests I'm not getting
> near the throughput I should for large 4gb+ files with multiple writing
> processes. It is a complex interaction of the number of dir
Interesting:
http://www.centos.org/docs/4/html/rh-gfs-en-6.1/s1-manage-direct-io.html
> ---Original Message---
> From: Ethan Alpert
> To: gdal-dev@lists.osgeo.org
> Subject: [gdal-dev] Can GDAL be configured to do direct I/O? (bypass cache,
> control blocksize, etc)
> Sent: Dec 14
I'm running in to a situation where I believe the filesystem cache
settings are screwing things up. Based on iozone tests I'm not getting
near the throughput I should for large 4gb+ files with multiple writing
processes. It is a complex interaction of the number of dirty pages in
filesystem cache i
On 14-12-12 10:10, Even Rouault wrote:
I also believe that the current WKT definition is known to be a bit hackish (is
there some official/generally agreed name for the projection that should be used
?). But you are probably using not the most recent version of GDAL, since recent
versions include
On 14-12-12 10:10, Even Rouault wrote:
Selon Pepijn Van Eeckhoudt :
I also believe that the current WKT definition is known to be a bit hackish (is
there some official/generally agreed name for the projection that should be used
?). But you are probably using not the most recent version of GDAL,
Selon Pepijn Van Eeckhoudt :
> When running 'epsg_tr.py -wkt 3857', gdal produces the WKT listed below.
> I believe the projection that is stated in the WKT is incorrect though.
> The combination of WGS 84 as base geogcs with Mercator_1SP as projection
> means that the regular ellipsoidal Mercator
When running 'epsg_tr.py -wkt 3857', gdal produces the WKT listed below.
I believe the projection that is stated in the WKT is incorrect though.
The combination of WGS 84 as base geogcs with Mercator_1SP as projection
means that the regular ellipsoidal Mercator projection will be used
which is
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