I m sorry to ask such basic questions, i m confuse about where to find lib_geom.h? such functions Geometry Utility Manual can't be find in my porject.
hope your help!
lib_geom.h is part of the geom.framework.
You have to include that framework in your project (projectdefinition.txt) to use that header file.
@s_bach Oh, i miss a important part, thank you!