DirectShapeCreateGeometryInstance Method

Creates a copy of a definition shape that was created earlier.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public static IList<GeometryObject> CreateGeometryInstance(
	Document document,
	string definition_id,
	Transform trf
)

Public Shared Function CreateGeometryInstance ( 
	document As Document,
	definition_id As String,
	trf As Transform
) As IList(Of GeometryObject)

public:
static IList<GeometryObject^>^ CreateGeometryInstance(
	Document^ document, 
	String^ definition_id, 
	Transform^ trf
)

static member CreateGeometryInstance : 
        document : Document * 
        definition_id : string * 
        trf : Transform -> IList<GeometryObject>

Parameters

document Document: Document to which the created element will be added
definition_id 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

IListGeometryObject
A collection of GeometryObjects representing a placed instance of the pre-defined shape The caller function takes ownership

Exceptions

Exception	Condition
ArgumentNullException	A non-optional argument was null

Remarks

Use DirectShapeLibrary class to store definitions prior to using them here. How the definitions are stored will determine whether an instance or a copy of the shape will be created. Use the output of this function as input to CreateElement to make the created shape persistent. This is intended to support a definition/instance pattern common in CAD formats - DWG blocks, STEP MAPPED_ITEM, IFC IfcMappedItem.

Reference

DirectShape Class

Autodesk.Revit.DB Namespace