I have run into a problem using GDAL to read TIFF images with a alpha
channels. GDAL returns the source TIFF sample values verbatim regardless
of whether the alpha channel is associated (pre-multiplied) or unassociated
within the TIFF image samples. (In each alpha model, the same pixel
value with
I guess somewhat off topic for a devel list but my 02c
I'd use ogr2ogr to convert the shapefile to a GMT (Generic Mapping Tools)
format vector file & use GMT to create the (COARDS compliant) netCDF grid file
from the vector data.
GMT has several approaches possible, including triangulation,
On Mon, May 28, 2012 at 10:16 AM, Chao YUE wrote:
> I have a shapefile of boreal foest (which further contains some ecoregion
> types) in North America and I want to like convert it to a NetCDF file (or
> numpy masked array)
Well, what's in the shape file? polygons? You'll need to know more
abou
Dear all,
I have a shapefile of boreal foest (which further contains some ecoregion
types) in North America and I want to like convert it to a NetCDF file (or
numpy masked array) with a desired spatial resolution (let's say 0.5
degree) and then use this information to extract corresponding data fr
Selon Jukka Rahkonen :
> Even Rouault mines-paris.org> writes:
>
>
> > - cheat a bit and create a white image that you add as the first position
> in
> > your VRT.
> >
> > This can be a single pixel image that you artifically expand to full VRT
> size,
> > like this :
> >
> >
> >>
Even Rouault mines-paris.org> writes:
> - cheat a bit and create a white image that you add as the first position in
> your VRT.
>
> This can be a single pixel image that you artifically expand to full VRT size,
> like this :
>
>
>ySize="replace_by_vrt_y_size"/>
This was the u
Even Rouault wrote:
>
> Selon Jukka Rahkonen :
>
> > Hi,
> >
> > I thought this would be easy but it was not.
> >
> > I have a mosaic of images which do not fill the whole
> bounding box of the
> > area.
> > I made a .VRT file the images and converted the virtual
> raster into geotiff.
> > No
Il 28/05/2012 15:41, Even Rouault ha scritto:
Hire is the full config.log:
http://ubuntuone.com/3HlRqtTs0nu4NeguX2eIG4
I have had a look at this config.log and found that in the step where the
configure script tries to check the libjvm, a non-expected string "missing" is
placed on the gcc line
Selon Yogesh Dahiya :
> Does gdal uses opencl for different resampling algorithms.
>
> If yes how can it be configured to use opencl?
>
The warping algorithms (as in gdalwarp) can use opencl acceleration provided
that you build GDAL with support for it. Currently, the build support is only
done f
Dear Rahkohen,
You are right it works fine now.
Thanks for quick reply.
:)
On Mon, 2012-05-28 at 13:32 +, Jukka Rahkonen wrote:
> "integer","real","real","real"
Murat BEYHAN
Jeofizik Y.Müh.
T.C. Başbakanlık
Afet ve Acil Durum Yönetimi Başkanlığı
Deprem Dairesi Başkanlığı
Eskişehir Yolu 12
>
> Hire is the full config.log:
> http://ubuntuone.com/3HlRqtTs0nu4NeguX2eIG4
I have had a look at this config.log and found that in the step where the
configure script tries to check the libjvm, a non-expected string "missing" is
placed on the gcc line, causing it to fail. I don't know where thi
Selon Jukka Rahkonen :
> Hi,
>
> I thought this would be easy but it was not.
>
> I have a mosaic of images which do not fill the whole bounding box of the
> area.
> I made a .VRT file the images and converted the virtual raster into geotiff.
> Now
> I have a nice mosaic but it has black boxes in
Murat Beyhan deprem.gov.tr> writes:
>
> Dear All,
>
> I would like to create a KML file using ogr2ogr with using following but
> sql statement part does not filter data from csv file and draw all
> points on the map, please help me what I'm doing wrong.
>
> the code I used as follows
>
> ogr2
N D gmail.com> writes:
>
>
> Hello,I am trying to crop and warp the enroute chart tif from FAA's
http://aeronav.faa.gov/Enroute/04-05-2012/ENR_H01.zip package with the following
commands:
1. gdal_translate -of vrt -srcwin 2203 204 21692 7591 ENR_H01.tif ENR_H01.vrt
2. gdalwarp -wm 1000 -t_sr
Hi,
I thought this would be easy but it was not.
I have a mosaic of images which do not fill the whole bounding box of the area.
I made a .VRT file the images and converted the virtual raster into geotiff. Now
I have a nice mosaic but it has black boxes in the areas where I do not have
source dat
Dear All,
I would like to create a KML file using ogr2ogr with using following but
sql statement part does not filter data from csv file and draw all
points on the map, please help me what I'm doing wrong.
the code I used as follows
ogr2ogr -f "KML" "villages.kml" "villages.csv" -dsco NameField
Il 28/05/2012 14:55, Even Rouault ha scritto:
If I try without it, I have got this error message:
--with-java=yes --with-mdb=yes
configure: error: "--with-jvm-lib must be specified."
Luca,
I've just installed a i386 ubuntu 12.04 VM and installed openjdk-7-jdk in it.
"./configure --with-jav
> If I try without it, I have got this error message:
>
> --with-java=yes --with-mdb=yes
>
> configure: error: "--with-jvm-lib must be specified."
Luca,
I've just installed a i386 ubuntu 12.04 VM and installed openjdk-7-jdk in it.
"./configure --with-java --with-mdb" just works out of the box, s
Hello,
I am trying to crop and warp th**e enroute chart tif from FAA's
http://aeronav.faa.gov/Enroute/04-05-2012/ENR_H01.zip package with the
following commands:
1. gdal_translate -of vrt -srcwin 2203 204 21692 7591 ENR_H01.tif
ENR_H01.vrt
2. gdalwarp -wm 1000 -t_srs EPSG:3395 -srcnodata 0 -dst
On 12-05-25 6:16 PM, Even Rouault wrote:
> Hi Jeff
>
> Or use trunk or latest state of 1.9 branch ;-) . 1.9 branch has been updated
> with poppler 0.20 support just a bit after 1.9.1, but it will be in 1.9.2. See
> http://trac.osgeo.org/gdal/ticket/4668 if you need to patch. For 0.20 support
> you
Does gdal uses opencl for different resampling algorithms.
If yes how can it be configured to use opencl?
If No how can opencl be integrated in gdal?
Thanks
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Hi all,
MapInfo stores coordinates in 32 bit integers (binary tab format), and
converts them back into floating point when loading data. The conversion
is done taking the boundary into account. The greater the boundary, the
lower the precision. That's why lat/lon coordinates are stored with
great
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