hello I'm trying to build leads a card using mapnik. Here are the steps I have done:
* Opening ogr datasource -> ds * Get the layer -> ly * Retrieve the extent of the layer -> (w, h) * Calculated image size -> (w / output_pixel_size, h / output_pixel_size) -> (wi, hi) * Prepare an image GDAL rgb output of this size * Creates a datasource mapnik * We will rasterizer output image block by block (eg block size = 1024x1024) Init zone in mapnik * Visited this area in a buffer in memory via the agg renderer / / Buffer Image32 buf (iBlocSize, iBlocSize); unsigned int * pData = (unsigned int *) buf.data (). getData (); / / Made this area into a buffer in memory / / (Render Map to year Image32 AGG) agg_renderer <Image32> ren (* tMap, buf); ren.apply (); at this stage, just in education ren.apply (); the manufacturer of projection Call it an init () and just after leaving the manufacturer, it crashes The debugger tells me the function basic_timed_mutex:: lock () in file basic_timed_mutex.hpp that exists in C: \ Program Files \ boost \ boost_1_42 \ boost \ thread \ win32 y-a-there anyone who can help me? I finally ffélicite any assistance.
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