[gdal-dev] Multithreading, deadlock with proj.4

2012-02-09 Thread Roger Phillips
Hello folks, I recently tried to use the GDAL 1.9.0 API from multiple threads. However, they may arise a deadlock situation where one thread hangs in the cpl_multithread.cpp CPLAcquireMutex function and others hang in the pj_acquire_lock() function of the proj.4 4.7.0 API blocking each other.

[gdal-dev] Gdal_translate + Google + Wgs84

2011-12-02 Thread Roger Phillips
Hello folks, I'm a beginner with Gdal and I have a question: Say, I have a rectangular tile defined in WGS84 coordinates using longitude and latitude. I want to receive this file from google for the respective rect. However, as far as I know, google uses mercator coordinates in its maps so t