Sébastien Loriot 5e0c09d8ce For backward compatibility reasons and according to this article: ... http://gotw.ca/gotw/006.htm, accelerate_distance_queries and clear_search_tree should be const. To guarantee the read-only thread-safety, a mutex for the construction of the internal kd-tree is used. At the same time, optimize accelerate_distance_queries() to not redo computation if nothing has changed in the aabb_tree. Note that clear_search_tree does not need to be thread-safe as it is private.		2011-09-09 08:31:38 +00:00
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CGAL	For backward compatibility reasons and according to this article:	2011-09-09 08:31:38 +00:00