Dear Gdal Developers and Users:
I have a big GeoTiff image file, and the following rectangular boundary:
ulx,uly,lrx,lry = -180, 90, 180, 80
I have to read the image lying for that boundary only.
How can I read it?
inraster = gdal.Ope
Selon Jukka Rahkonen :
> Hi,
>
> Geoserver project has useful documents for committers about policies and
> procedures http://docs.geoserver.org/2.5.0/developer/policies/index.html.
> Now we have a brave user who writes:
>
> "I'll be willing to contribute in that way! What does it imply from my si
Hi,
Geoserver project has useful documents for committers about policies and
procedures http://docs.geoserver.org/2.5.0/developer/policies/index.html.
Now we have a brave user who writes:
"I'll be willing to contribute in that way! What does it imply from my side
to be maintainer? I need to asses
Hi David,
Thanks for the response. I'll feed your question about converting the
shapefile to geojson back to the team.
In the meantime, I have also received some more info on your previous questions:
"The input file was 1.4GB, the output geojson was around 17GB IIRC.
The raster file contains a
Your team writes that the image is usually exported as a vector file, eg
shapefile. Can they do this successfully for the 1.4GB image? If so,
have you tried just converting the shapefile to geojson? Might be the
simplest solution.
If that doesn't work, you could try tiling, as you mention. As Even
Chris,
As underlined by David, the time spent in raster I/O is presumably neglectable
and not the issue here.
How many polygons were generated in this execution ?
A good way of identifying a bottleneck is to run the process under gdb and
regularly break with Ctrl+C and display the backtrace, and t
Selon Malm Paul :
> Hi, list!
> We're trying to read a DNC chart (VPF format) in a Linux OS. The OGR driver
> reports that files are not found. It works in Windows.
> The problems seems to be caseing of the names, if we recursively rename the
> file paths to lowercase it works. But it does not wo
Hi David,
Thanks for your response. I have a little more information since
feeding your response to the project team:
"The tif file is around 1.4GB as you noted and the data is similar to
that of the result of an image classification where each pixel value
is in a range between (say) 1-5. After
Hi, list!
We're trying to read a DNC chart (VPF format) in a Linux OS. The OGR driver
reports that files are not found. It works in Windows.
The problems seems to be caseing of the names, if we recursively rename the
file paths to lowercase it works. But it does not work with the original files.
