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CreateElementInstance Method (Document, ElementId, ElementId, String, Transform)

Direct Shape Create Element Instance Method

Creates a DirectShape object and adds it to document.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax 
public static DirectShape CreateElementInstance(
	Document document,
	ElementId typeId,
	ElementId categoryId,
	string definitionId,
	Transform trf
)

Parameters

document Document
Document to which the created element will be added.
typeId ElementId
Element id of a DirectShapeType element.
categoryId ElementId
Id of the category assigned to this DirectShape. Must be a valid category id.
definitionId String
Id of the shape definition that was created earlier and stored via DirectShapeLibrary.
trf Transform
Transform to be applied to the definition.

Return Value

DirectShape
The created DirectShape object.
Exceptions
Exception Condition
ArgumentException Document document may not contain DirectShape or DirectShapeType objects. -or- Element id categoryId may not be used as a DirectShape category.
ArgumentNullException A non-optional argument was null
Remarks
This function is included for convenience. It essentially combines CreateGeometryInstance and CreateElement. The shape stored in the element is either a reference or a copy of a definition shape that was created earlier. How the definitions are stored will determine whether an instance or a copy of the shape will be created. The intended use is to support a definition/instance pattern common in CAD formats - DWG blocks, STEP MAPPED_ITEM, IFC IfcMappedItem. Use DirectShapeLibrary class to store definitions prior to using them here.
See Also