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IsCurveLoopConvexWithOpenings Method

Checks if the region bounded by the input curve loop can be represented as the subtraction of 0 or more convex polygons from a base convex polygon.

Namespace: Autodesk.Revit.DB.IFC
Assembly: RevitAPIIFC (in RevitAPIIFC.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2012

Syntax

C#
public static bool IsCurveLoopConvexWithOpenings(
	CurveLoop inputCurveLoop,
	Wall wall,
	IFCRange range,
	out bool loopIsDegenerate
)
Visual Basic
Public Shared Function IsCurveLoopConvexWithOpenings ( _
	inputCurveLoop As CurveLoop, _
	wall As Wall, _
	range As IFCRange, _
	<OutAttribute> ByRef loopIsDegenerate As Boolean _
) As Boolean
Visual C++
public:
static bool IsCurveLoopConvexWithOpenings(
	CurveLoop^ inputCurveLoop, 
	Wall^ wall, 
	IFCRange^ range, 
	[OutAttribute] bool% loopIsDegenerate
)

Parameters

inputCurveLoop
Type: Autodesk.Revit.DBCurveLoop
The input curve loop. It is intended that this curve loop have been obtained from the elevation profile of a wall.
wall
Type: Autodesk.Revit.DBWall
The wall from which the curve loop was obtained.
range
Type: Autodesk.Revit.DB.IFCIFCRange
The range extents of the wall.
loopIsDegenerate
Type: SystemBoolean%
If the function returns false but this returns true, the loop could be obtained but was degenerate. Thus there is no extrusion that can be produced.

Return Value

True if the region can be represented by a boolean combination of polygons, false otherwise.

Remarks

This function is intended to be used to determine if the geometry of a wall with an elevation profile can be successfully represented as a vertical extrusion with one or more openings removed. If this function is to return true, the subtracting polygons must each have at least one edge coincident with the base convex polygon. Before the check is performed, this input curve will be trimmed by the range extents of the wall, if any.

Exceptions

ExceptionCondition
Autodesk.Revit.ExceptionsArgumentNullException A non-optional argument was null

See Also