PolygonMesh.GetPolygonIndexArray operator

導入

v5.0

詳細

ポイントロケータが定義されているポリゴンインデックスを戻します。

この情報はポリゴンメッシュポイントロケータ定義の一部であり、トポロジにのみ影響されます(ジオメトリが変形しても更新されません)。

ポリゴン内の場所は、PolygonMesh.GetTriangleVertexIndexArrayPolygonMesh.GetTriangleWeightArray、および PolygonMesh.GetTriangleNodeIndexArray を使用してクエリできます。

C#構文

Object PolygonMesh.GetPolygonIndexArray( PointLocatorData in_pPtLocators, Object in_pPointLocatorsIndices );

スクリプト構文

oArray = PolygonMesh.GetPolygonIndexArray( PointLocators, [Indices] );

戻り値

1DArray

パラメータ

パラメータ タイプ 説明
PointLocators PointLocatorData ポイントロケータは記述されます。
Indices 1DArray 記述するポイントロケータのインデックス(無指定の場合はすべてのポイントロケータが対象となります)。

JScript の例

//

//	This example topologically describes the point locators resulting 

//	from the shrink-wrapping of a cube onto a mesh sphere.

//

NewScene();

var root = Application.ActiveSceneRoot;

var CubePositionArray = root.AddGeometry("Cube", "MeshSurface").ActivePrimitive.Geometry.Points.PositionArray;

var MeshSphereGeom = root.AddGeometry("Sphere", "MeshSurface").ActivePrimitive.Geometry;

var CubeOnSpherePointLocators = MeshSphereGeom.GetClosestLocations(CubePositionArray);

var PtLocIndices = new Array(1);

for(i = 0; i < CubeOnSpherePointLocators.Count; i++)

{

	PtLocIndices[0] = i;

	var PtLocPolygon = MeshSphereGeom.GetPolygonIndexArray(

					CubeOnSpherePointLocators,

					PtLocIndices).toArray();

	var PtLocSubTriNodes = MeshSphereGeom.GetTriangleNodeIndexArray(

					CubeOnSpherePointLocators,

					PtLocIndices).toArray();

	var PtLocSubTriVertices = MeshSphereGeom.GetTriangleVertexIndexArray(

					CubeOnSpherePointLocators,

					PtLocIndices).toArray();

	var PtLocBaryCoords = MeshSphereGeom.GetTriangleWeightArray(

					CubeOnSpherePointLocators,

					PtLocIndices).toArray();

	Application.LogMessage("Point locator " + i + " is on polygon " + PtLocPolygon[0] + ",");

	Application.LogMessage("on a subtriangle described by nodes (" 

				+ PtLocSubTriNodes[0] + ", " + PtLocSubTriNodes[1] + ", " + PtLocSubTriNodes[2] + ")" +

				" or by vertices (" 

				+ PtLocSubTriVertices[0] + ", " + PtLocSubTriVertices[1] + ", " + PtLocSubTriVertices[2] + ")");

	Application.LogMessage("and having barycentric coordinates ("

				+ PtLocBaryCoords[0] + ", " + PtLocBaryCoords[1] + ", " + PtLocBaryCoords[2] + ")");

	Application.LogMessage("");

}

// Expected results:

//INFO : Point locator 0 is on polygon 58,

//INFO : on a subtriangle described by nodes (217, 219, 220) or by vertices (52, 4, 53)

//INFO : and having barycentric coordinates (0.6173165440559387, 0, 0.3826834559440613)

//INFO : 

//INFO : Point locator 1 is on polygon 42,

//INFO : on a subtriangle described by nodes (157, 159, 160) or by vertices (38, 46, 39)

//INFO : and having barycentric coordinates (0.6173165440559387, 0, 0.3826834559440613)

//INFO : 

//INFO : Point locator 2 is on polygon 61,

//INFO : on a subtriangle described by nodes (229, 231, 232) or by vertices (55, 7, 56)

//INFO : and having barycentric coordinates (0.3826834261417389, 0, 0.6173166036605835)

//etc.

関連項目

PointLocatorData Geometry Geometry.GetClosestLocations Geometry.GetClosestLocationsWithinRadius Geometry.GetRaycastIntersections Geometry.SetupPointLocatorQueries Geometry.GetSurfacePointLocatorsFromPoints Geometry.EvaluatePositions Geometry.EvaluateNormals Geometry.EvaluateClusterProperty PolygonMesh.GetTriangleVertexIndexArray PolygonMesh.GetTriangleNodeIndexArray PolygonMesh.GetTriangleWeightArray PolygonMesh.ConstructPointLocators NurbsSurfaceMesh.GetSubSurfaceIndexArray NurbsSurfaceMesh.GetNormalizedUVArray NurbsSurfaceMesh.ConstructPointLocators