IExportContext
Description:
An interface that is used in custom export to process a Revit model.
An interface that is used in custom export to process a Revit model.
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.
public interface IExportContext
| Name | Return Type | Description |
|---|---|---|
| Finish() | None | This method is called at the very end of the export process, after all entities were processed (or after the process was cancelled). |
| IsCanceled() | Boolean | This method is queried at the beginning of every element. |
| OnElementBegin(ElementId) | RenderNodeAction | This method marks the beginning of an element to be exported. |
| OnElementEnd(ElementId) | None | This method marks the end of an element being exported. |
| OnFaceBegin(FaceNode) | RenderNodeAction | This method marks the beginning of a Face to be exported. |
| OnFaceEnd(FaceNode) | None | This method marks the end of the current face being exported. |
| OnInstanceBegin(InstanceNode) | RenderNodeAction | This method marks the start of processing of an instance node (e.g. a family instance). |
| OnInstanceEnd(InstanceNode) | None | This method marks the end of processing of an Instance Node (e.g. a family instance). |
| OnLight(LightNode) | None | This method marks the beginning of export of a light which is enabled for rendering. |
| OnLinkBegin(LinkNode) | RenderNodeAction | This method marks the beginning of a link instance to be exported. |
| OnLinkEnd(LinkNode) | None | This method marks the end of a link instance being exported. |
| OnMaterial(MaterialNode) | None | This method marks a change of the material. |
| OnPolymesh(PolymeshTopology) | None | This method is called when a tessellated polymesh of a 3d face is being output. |
| OnRPC(RPCNode) | None | This method marks the beginning of export of an RPC object. |
| OnViewBegin(ViewNode) | RenderNodeAction | This method marks the beginning of a 3D view to be exported. |
| OnViewEnd(ElementId) | None | This method marks the end of a 3D view being exported. |
| Start() | Boolean | This method is called at the very start of the export process, still before the first entity of the model was send out. |