IExportContext

Public Interface

An interface that is used in custom export to process a Revit model.

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

Syntax

public interface IExportContext

The IExportContext type exposes the following members.

Methods

Name

Description

Public Method

Finish

This method is called at the very end of the export process, after all entities were processed (or after the process was cancelled).

Public Method

IsCanceled

This method is queried at the beginning of every element.

Public Method
Code Example
OnElementBegin

This method marks the beginning of an element to be exported.

Public Method
OnElementEnd

This method marks the end of an element being exported.

Public Method
Code Example
OnFaceBegin

This method marks the beginning of a Face to be exported.

Public Method

OnFaceEnd

This method marks the end of the current face being exported.

Public Method
Code Example

OnInstanceBegin

This method marks the start of processing of an instance node (e.g. a family instance).

Public Method

OnInstanceEnd

This method marks the end of processing of an Instance Node (e.g. a family instance).

Public Method
Code Example
OnLight

This method marks the beginning of export of a light which is enabled for rendering.

Public Method
Code Example

OnLinkBegin

This method marks the beginning of a link instance to be exported.

Public Method

OnLinkEnd

This method marks the end of a link instance being exported.

Public Method
Code Example

OnMaterial

This method marks a change of the material.

Public Method
Code Example

OnPolymesh

This method is called when a tessellated polymesh of a 3d face is being output.

Public Method
OnRPC

This method marks the beginning of export of an RPC object.

Public Method
Code Example

OnViewBegin

This method marks the beginning of a 3D view to be exported.

Public Method

OnViewEnd

This method marks the end of a 3D view being exported.

Public Method
Code Example

Start

This method is called at the very start of the export process, still before the first entity of the model was send out.

Remarks

An instance of a class that implements this interface is passed in as a parameter of the CustomExporter constructor. The methods of the context are then called at times of exporting entities of the model.

This is a base class for two other interfaces derived from it: IPhotoRenderContext and IModelExportContext. This base class contains methods that are common to both the leaf interfaces. Although it is still possible to use classes deriving directly from this base interface (for backward compatibility), future applications should implement the new leaf interfaces only.