QueryPatchIndicesWithMaterial Method

In This Topic

Returns an array of patch indices that reference the given Material instance.

Syntax

Visual Basic (Declaration)
C#

Public Function QueryPatchIndicesWithMaterial( _
   ByVal material As Material _
) As Integer()

public int[] QueryPatchIndicesWithMaterial( 
   Material material
)

Parameters

material: Material instance to check. If null, the method will collect indices of all patches that have null material.

Return Value

Returns an array of patch indices. The array is empty if no patches reference the given material instance.

Example

Construct Multipatch via MultipatchBuilderEx

{
  var coords_face1 = new List<Coordinate3D>()
{
  new Coordinate3D(12.495461061000071,41.902603910000039,62.552700000000186),
  new Coordinate3D(12.495461061000071,41.902603910000039,59.504700000004959),
  new Coordinate3D(12.495461061000071,41.902576344000067,59.504700000004959),
  new Coordinate3D(12.495461061000071,41.902603910000039,62.552700000000186),
  new Coordinate3D(12.495461061000071,41.902576344000067,59.504700000004959),
  new Coordinate3D(12.495461061000071,41.902576344000067,62.552700000000186),
};

  var coords_face2 = new List<Coordinate3D>()
{
  new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
  new Coordinate3D(12.495461061000071, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
};

  var coords_face3 = new List<Coordinate3D>()
{
  new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
};

  var coords_face4 = new List<Coordinate3D>()
{
  new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
};

  var coords_face5 = new List<Coordinate3D>()
{
  new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
  new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
};

  var coords_face6 = new List<Coordinate3D>()
{
  new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
  new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
  new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
  new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
  new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
};

  // materials
  var materialRed = new BasicMaterial();
  materialRed.Color = System.Windows.Media.Colors.Red;

  var materialTransparent = new BasicMaterial();
  materialTransparent.Color = System.Windows.Media.Colors.White;
  materialTransparent.TransparencyPercent = 80;

  var blueTransparent = new BasicMaterial(materialTransparent);
  blueTransparent.Color = System.Windows.Media.Colors.SkyBlue;

  // create a list of patch objects
  var patchesList = new List<Patch>();

  // create the multipatchBuilderEx object
  var mpb = new ArcGIS.Core.Geometry.MultipatchBuilderEx();

  // make each patch using the appropriate coordinates and add to the patch list
  var patch = mpb.MakePatch(PatchType.Triangles);
  patch.Coords = coords_face1;
  patchesList.Add(patch);

  patch = mpb.MakePatch(PatchType.Triangles);
  patch.Coords = coords_face2;
  patchesList.Add(patch);

  patch = mpb.MakePatch(PatchType.Triangles);
  patch.Coords = coords_face3;
  patchesList.Add(patch);

  patch = mpb.MakePatch(PatchType.Triangles);
  patch.Coords = coords_face4;
  patchesList.Add(patch);

  patch = mpb.MakePatch(PatchType.Triangles);
  patch.Coords = coords_face5;
  patchesList.Add(patch);

  patch = mpb.MakePatch(PatchType.Triangles);
  patch.Coords = coords_face6;
  patchesList.Add(patch);

  patchesList[0].Material = materialRed;
  patchesList[1].Material = materialTransparent;
  patchesList[2].Material = materialRed;
  patchesList[3].Material = materialRed;
  patchesList[4].Material = materialRed;
  patchesList[5].Material = blueTransparent;

  // assign the patches to the multipatchBuilder
  mpb.Patches = patchesList;

  // check which patches currently contain the material
  var red = mpb.QueryPatchIndicesWithMaterial(materialRed);
  //   red should be [0, 2, 3, 4]
  // call ToGeometry to get the multipatch
  multipatch = mpb.ToGeometry() as Multipatch;
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.0 or higher.

Reference

MultipatchBuilderEx Class
MultipatchBuilderEx Members

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