On mardi 13 juin 2017 08:24:59 CEST teeschke wrote:
> Dear GDAL Devs,
>
> the vsis3 driver truly is a masterpiece of a driver!!
> http://www.gdal.org/cpl__vsi_8h.html#a5b4754999acd06444bfda172ff2aaa16
>
> I just wonder if there is any possibility to increase the global LRU cache
> which has a fix
Dear GDAL Devs,
the vsis3 driver truly is a masterpiece of a driver!!
http://www.gdal.org/cpl__vsi_8h.html#a5b4754999acd06444bfda172ff2aaa16
I just wonder if there is any possibility to increase the global LRU cache
which has a fixed size of 16MB.
In my use-case I have time-related Gribfiles, st
Dear list,
Below you will find a question from my intern Bram. Unfortunately I could not
help him out either since I only use the gdal executables.
We would highly appreciate your help calling GDAL functions from within Python.
Kind regards,
Siebe Bosch
Hi devs,
This is my first time using t
Maybe it does not compile the formula but runs parser etc. as a kind of
interpreter at each function call.
Googled and saw http://beltoforion.de/article.php?a=muparsersse. Did not
try, so no recommendation, let alone guarantee ;)
You could check by defining a test function explicitly, if it is much
Hi Paul,
I can only do snippets in C++...
You can get the block size using:
poBand->GetBlockSize( &nBlockXSize, &nBlockYSize );
then do a read something like:
for(int band = 0; band AdviseRead(startX+xoffset,startY+yoffset,blockWidth,blockHeight,blockWidth,blockHeight,GDT_Int32,
NULL);
To answer my own question:
GdalWarp is smart enough to internally reproject if needed.
So I can use my tiff in UTM and my border in 28992 and I get a perfectly
clipped output.
Paul
*Paul Meems *
Release manager, configuration manager
and forum moderator of MapWindow GIS.
www.mapwindow.org
Own
Hi Paul,
What is the time to run your code without applying the calculation to each
pixel?
It is usually better to process the pixels in a block rather than walking
across each row especially if you are processing a TIFF as these are
usually stored as tiles (blocks).
The crossing from C# to C++
I'm using GDAL v2.1.3 with the SWIG bindings in my custom C# application.
I've created a method to do some calculation of my raster file:
public bool GdalCalculate(string input, string output, string formula,
double? minValue = null)
{
if (!File.Exists(input))
throw new FileNotFoundEx
