Hi, zooming out of a raster map is always a very resource hungry task as a large area of points have to be read and reduced to the viewport size.
For a steady map RasterIO does the perfect job. However if the user zooms out of a map very fast via mouse wheel RasterIO eats up too much time to allow a smooth zoom. Thus my question: Is there a way in GDAL to get a quick overview picture for smooth zooming. Oliver _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
