DrawContext Class

A class that provides drawing functionality for use by IDirectContext3DServer servers
Inheritance Hierarchy
SystemObject
  Autodesk.Revit.DB.DirectContext3DDrawContext

Namespace: Autodesk.Revit.DB.DirectContext3D
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
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public static class DrawContext

The DrawContext type exposes the following members.

Methods
 NameDescription
Public methodStatic memberFlushBuffer Submits geometry for rendering.
Public methodStatic memberGetCamera Gets the camera corresponding to the Revit view where rendering takes place.
Public methodStatic memberGetClipPlanes Gets the clipping planes for the Revit view where rendering takes place. Clipping planes control the 3D extent of a view and can be set using Section Box in Revit.
Public methodStatic memberGetClipRectangle Gets the clip rectangle for the Revit view where rendering takes place. The clip rectangle is the area currently being redrawn, which may be smaller than the view rectangle.
Public methodStatic memberGetOverrideColor Returns override color that will be applied to geometry during rendering.
Public methodStatic memberGetOverrideTransparency Returns override transparency that will be applied to geometry during rendering.
Public methodStatic memberGetViewRectangle Gets the rectangle that represents the extent (in 2D) of the Revit view where rendering takes place.
Public methodStatic memberIsAvailable Checks whether the facilities of this class are available for use in the current scope.
Public methodStatic memberIsInterrupted Checks whether the current rendering pass has been interrupted.
Public methodStatic memberIsTransparentPass Determines whether the current rendering pass is for transparent objects.
Public methodStatic memberSetWorldTransform Sets the world transformation that will be applied to geometry during rendering.
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Remarks

The drawing facility of this class is conceptually similar to a low-level graphics API. The functionality operates on a set of geometry primitives such as triangles, lines, and points, which are encoded into a set of vertex and index buffers.

Aside from submission of geometry in buffers, a major part of the drawing process is responding to certain changes in graphics state. For example, users of this class can implement progressive rendering of geometry by testing whether there have been interruptions that should prevent the drawing from being completed.

See Also