Mihovil,
- Documentation of GDAL development processes:
https://gdal.org/en/stable/development/index.html
- Sieve filter source code:
https://github.com/OSGeo/gdal/blob/master/alg/gdalsievefilter.cpp
Even
Le 04/02/2025 à 21:52, Mihovil Rak via gdal-dev a écrit :
Hello GDAL Dev team,
As
Hello GDAL Dev team,
As far as I know gdal_sieve is the only GDAL raster generalization tool and one
of the few open source ones in general.
I would suggest to create a tool (or a few of them) that could use
generalization alghoritms like expansion (dilation), shrinking (erosion),
boundary smo
On vendredi 31 août 2018 09:45:02 CEST Nicolas Cadieux wrote:
> Hi,
>
> How do we proceed if we want GDAL team to create drivers for a new raster
> format?
Nicolas,
GDAL being open source software, the GDAL team is basically anyone willing to
tackle on this task. You, a coworker, etc... General
Hi,
How do we proceed if we want GDAL team to create drivers for a new raster
format? I would like gdal to be able to read .byn and .bin Geoid files. I
don’t think these files can be simply read using the bin vrt format. I have
the file format specifications.
Nicolas Cadieux
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4 de Fevereiro de 2014 15:19
Para: gdal-dev@lists.osgeo.org
Assunto: Re: [gdal-dev] suggestion for faster overviews building
Duarte Carreira edia.pt> writes:
>
> Is there a way to merge de resampled images into an .ovr? Or maybe
reference the resampled images in a vrt and hav
Duarte Carreira edia.pt> writes:
>
> Is there a way to merge de resampled images into an .ovr? Or maybe
reference the resampled images in a vrt and have them used as overviews?
Hi,
Even Rouault helped me when I was experimenting with something like this.
You can catch the discussion from her
Hi there.
I am again in the course of creating overviews using gdaladdo and can't help
feeling this could be faster...
Gdalwarp is much faster when resampling an image. You can use -multi and tune
memory usage.
So why can't gdaladdo? Ok, lets just assume this is a fact of life we have to
deal
> now it's my turn to be confused.
> This is pixel-by-pixel copy of a subset of the input pixels. It is a
> subwindow of the original image, exactly as you say.
> I'm taking an m x n input image and copying p x q pixels (p <= m, q <=n)
> into p x q pixels in the band. The scale is unchanged.
Ah i
On 11/11/2012 12:56 PM, Even Rouault wrote:
GDALRasterBand::WriteCropToBand(int nCropSizeX, // width of the cropped
region int nCropSizeY, // height of the cropped region int nXOffset, //
offset to the left edge of the cropped region int nYOffset, // offset to
the top of the cropped region vo
> GDALRasterBand::WriteCropToBand(int nCropSizeX, // width of the cropped
> region int nCropSizeY, // height of the cropped region int nXOffset, //
> offset to the left edge of the cropped region int nYOffset, // offset to
> the top of the cropped region void * pBuf,// pointer to the buffe
On 11/11/2012 9:25 AM, Even Rouault wrote:
The value of a new function is code clarity. It's not just computing
pData, it's that the nBufXSize and nBufYSize become the size of the
cropped region, not the size of the actual buffer,
I don't unders
> The value of a new function is code clarity. It's not just computing
> pData, it's that the nBufXSize and nBufYSize become the size of the
> cropped region, not the size of the actual buffer,
I don't understand what you mean, sorry. Perhaps you should show the code. I
understand that better th
On 11/11/2012 3:53 AM, Even Rouault wrote:
Le dimanche 11 novembre 2012 03:45:57, David Strip a écrit :
The current GDALRasterBand::RasterIO signature makes it easy to read or
write a contiguous subregion of the band. However, if you want to read or
write the entire band into/from a contiguou
Le dimanche 11 novembre 2012 03:45:57, David Strip a écrit :
> The current GDALRasterBand::RasterIO signature makes it easy to read or
> write a contiguous subregion of the band. However, if you want to read or
> write the entire band into/from a contiguous sub-region of the buffer,
> it's not ne
The current GDALRasterBand::RasterIO signature makes it easy to read
or write a contiguous subregion of the band. However, if you want to
read or write the entire band into/from a contiguous sub-region of
the buffer, it's not nearly as straightforward. You can do this by
Hi,
Depending on your experience level with geospatial software I would
suggest starting with
1.) QGIS, www.qgis.org
Nice for looking into raster data with some fancy functions, useable
for beginners as well
2.) GDAL API tutorial, http://www.gdal.org/gdal_tutorial.html
If you want to dive into
Dear sir,
I want to open simple geotiff raster image with Lat/Long/Altitude
information.I also read all the gdal libraries but I donot able to open the
.tiff image ,If any solution then reply.
I will be grateful for your suggestions
Thanks in anticipation.
With Regards,
Dipa Biswas
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