AutoCAD Parser Library (APL)

APL SDK is used to establish connection and interaction with Autodesk AutoCAD, any version will do.

It contains methods to get and send entities, with various constraints, properties and settings.

Among those are methods to get / set

• points (select, pick, draw, select block, draw block etc
• 3DFaces
• 3DPolylines
• Splines
• LWPolylines
• Polylines
• Lines
• Arcs
• "Bulge" Polylines
• Layers
• Linear entities <any>
• Circles
• Text
• MText

It's written entirely in .NET (Visual Basic, still can be used in C# or any other .NET language), source code is also available on demand.