[gdal-dev] Creating a VRT dataset from overviews in C++

2012-05-10 Thread tseval
Hi, I'm trying to cut and reproject a large image with overviews using the c++ api. This runs extremely slow when I produce highly downsampled cutouts covering large areas of the original image. I understand the the Warp API doesn't use the overviews when resampling, so I wanted to make a tempora

[gdal-dev] GDAL/C++ Cut out and possibly reproject a sub-image

2012-04-15 Thread tseval
Hi folks, I am programming an application where I want to produce small tiles in a given projection from a lot of input image files. The input files may be different projections and resolutions. I have read the API tutorials and looked through the GDAL documentation, and searched this mailing li