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CreateMaskingRegion Method (Document, SketchPlane, IList(CurveLoop))

Filled Region Create Masking Region(Document, Sketch Plane, IList Curve Loop ) Method

Creates a masking region on a sketch plane in a 3d model family.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax 
public static FilledRegion CreateMaskingRegion(
	Document document,
	SketchPlane sketchPlane,
	IList<CurveLoop> boundaries
)

Parameters

document Document
The family document in which to create the masking region.
sketchPlane SketchPlane
The sketch plane for use with the masking region.
boundaries IList CurveLoop
The masking region boundaries, which will be projected onto the sketch plane.

Return Value

FilledRegion
The new masking region.
Exceptions
Exception Condition
ArgumentException The document is not a 3d model family. -or- Filled regions can't be created in this document or view. -or- The sketch plane is not suitable for model elements. -or- The sketch plane normal is not parallel to the model's X, Y or Z axis. -or- The input curve loops cannot compose a valid boundary, that means: the "curveLoops" collection is empty; or some curve loops intersect with each other; or each curve loop is not closed individually; or each curve loop is not planar; or each curve loop is not in a plane parallel to the sketch plane; or input curves contain at least one helical curve.
ArgumentNullException A non-optional argument was null
Remarks
If the sketch plane is currently in use, then a copy of the sketch plane will be created and used. The sketch plane normal must be parallel to the model's X, Y or Z axis. The sketch plane can be a planar face reference to model geometry. The line style of the boundaries will be set to thin lines by default.
See Also