Hi Sean,
I initialise datatmp using CPLMalloc in the C++
T* dataTmp = (T*)CPLMalloc(sizeof(T) *(this->dspRastXSize *
this->dspRastYSize));
this is then freed using CPLFree once finished with. I do re-malloc it for each
band we want to read in a raster so that does add some slowdown that cou
Hi Gareth,
How are you initializing your dataTmp array? In my Rasterio project, I've
found that numpy.empty() is the fastest array allocator and use it whenever
possible. I also use the GDAL C API and Cython (in case you're interested:
https://github.com/mapbox/rasterio/blob/c80b568903ef7b902ce625
I'm currently writing optimisations for a raster viewer program which uses gdal
as it's base. It's currently written purely in python, and has some major speed
issues which cause problems when we are reading many files at a time. After
making some optimisations in the python, and getting quite a
