This .NET class wraps the AcGiViewportGeometry ObjectARX class. 

This class is responsible for inserting geometry into the graphics cache for later display. An object of this class is part of every ViewportDraw object which is passed into an entity's ViewportDraw() method. Geometry generated with the methods of this class is displayed only in the viewport the ViewportDraw method was called for. If non-viewport-specific graphics are desired, then WorldDraw() should be used instead of ViewportDraw(). 

This class also exposes the current net block insert transform of the entity. 

Unless otherwise specified, model coordinates are applied to all geometry in this class. For an explanation of coordinate systems, see the ObjectARX Developer's Guide.

Autodesk.AutoCAD.GraphicsInterface.ViewportGeometry

Public abstract Class ViewportGeometry
Inherits Autodesk.AutoCAD.GraphicsInterface.Geometry

public abstract class ViewportGeometry : Autodesk.AutoCAD.GraphicsInterface.Geometry;