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AutoCAD 2025 Developer and ObjectARX
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      • ObjectARX: Developer's Guide
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        • Custom Objects
        • Advanced Topics
        • ObjectARX Graphics, Geometry, and Boundary Representation Libraries
          • The Graphics Interface Library
            • AcGi Overview
            • Setting Entity Traits
            • Primitives
            • Using Drawables in your Object
            • Tessellation
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            • Using Clip Boundaries in AcGi
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    The Graphics Interface Library

    AutoCAD ® uses the graphics interface library (AcGi) to display built-in and custom entities. This section discusses setting entity traits and using primitives to create custom graphical entities. For a complete description of all AcGi classes and their member functions, see the ObjectARX Reference.

    Topics in this section
    • AcGi Overview
    • Setting Entity Traits
    • Primitives
    • Using Drawables in your Object
    • Tessellation
    • Isolines
    • Transformations
    • Using Clip Boundaries in AcGi

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