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IntersectionMeshMeshPredicate Method (IEnumerableMesh, IEnumerableMesh, Double, Boolean, Int32, Int32, TextLog, CancellationToken)

Determines which meshes intersect, and reports one intersecting face couple for each pair found. No geometry is computed: each pair of meshes is tested only until its first hit.

Namespace:  Rhino.Geometry.Intersect
Assembly:  RhinoCommon (in RhinoCommon.dll)
Since: 9.0
Syntax
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public static bool MeshMeshPredicate(
	IEnumerable<Mesh> meshesA,
	IEnumerable<Mesh> meshesB,
	double tolerance,
	bool fast,
	out int[] pairs,
	out int[] facePairs,
	TextLog textLog,
	CancellationToken cancel
)

Parameters

meshesA
Type: System.Collections.GenericIEnumerableMesh
The first mesh list. This cannot be null. Null entries are skipped and do not count in the indices.
meshesB
Type: System.Collections.GenericIEnumerableMesh
A second mesh list, or null. When null, every pair within meshesA is tested once; otherwise every mesh of meshesA is tested against every mesh of meshesB.
tolerance
Type: SystemDouble
A tolerance value. If negative, the positive value will be used. WARNING! Good tolerance values are in the magnitude of 10^-7, or RhinoMath.SqrtEpsilon*10.
fast
Type: SystemBoolean
True uses the fast intersector behind MeshMeshFast(Mesh, Mesh): faces that cross or touch within tolerance count, coplanar overlap without a crossing does not. False uses the accurate intersector, which also reports coplanar overlap and costs about as much as MeshMeshFast(Mesh, Mesh).
pairs
Type: SystemInt32
Flattened index couples [i0, j0, i1, j1, ...] of the meshes that intersect: i indexes meshesA and j indexes meshesB, or both index meshesA with i less than j. Empty when nothing intersects.
facePairs
Type: SystemInt32
Flattened face index couples parallel to pairs: for each couple in pairs, a face of the first mesh and a face of the second that intersect, the first ones found.
textLog
Type: Rhino.FileIOTextLog
A text log, or null.
cancel
Type: System.ThreadingCancellationToken
A cancellation token to stop the computation at a given point.

Return Value

Type: Boolean
True if any pair intersects, otherwise false. False is also returned on error or cancellation.
See Also