Drive AutoCAD with Code

More often than not we need to write code to loop through large amount of data set, such as entities in a selection set or even entire Model...

During drafting process, sometimes an AutoCAD user would wish he.she could easily find out where the centroid of an polygon (assuming it is ...

When moving from AutoCAD VBA (COM API) programming to AutoCAD ObjectARX .NET API programming, one of the most "dramatic" changes a...