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DrawContext

Public Class

A class that provides drawing functionality for use by IDirectContext3DServer servers

Inheritance Hierarchy

System.Object
Autodesk.Revit.DB.DirectContext3D.DrawContext

Namespace: Autodesk.Revit.DB.DirectContext3D

Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public static class DrawContext

The DrawContext type exposes the following members.

Methods

Name

Description

Public Method
Static Member

FlushBuffer

Submits geometry for rendering.

Public Method
Static Member

GetCamera

Gets the camera corresponding to the Revit view where rendering takes place.

Public Method
Static Member

GetClipPlanes

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 Method
Static Member

GetClipRectangle

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 Method
Static Member

GetOverrideColor

Returns override color that will be applied to geometry during rendering.

Public Method
Static Member

GetOverrideTransparency

Returns override transparency that will be applied to geometry during rendering.

Public Method
Static Member

GetViewRectangle

Gets the rectangle that represents the extent (in 2D) of the Revit view where rendering takes place.

Public Method
Static Member
IsAvailable

Checks whether the facilities of this class are available for use in the current scope.

Public Method
Static Member

IsInterrupted

Checks whether the current rendering pass has been interrupted.

Public Method
Static Member
IsTransparentPass

Determines whether the current rendering pass is for transparent objects.

Public Method
Static Member

SetWorldTransform

Sets the world transformation that will be applied to geometry during rendering.

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.