ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Geometry Namespace / MultipatchBuilderEx Class / GetPatchPointCount Method
The patch index. Must be in the range [0, Patches.Count - 1] inclusive.
Example

In This Topic
    GetPatchPointCount Method (MultipatchBuilderEx)
    In This Topic
    A convenience method to return the number of vertices in the specified Patch.
    Syntax
    public int GetPatchPointCount( 
       int patchIndex
    )
    Public Function GetPatchPointCount( _
       ByVal patchIndex As Integer _
    ) As Integer

    Parameters

    patchIndex
    The patch index. Must be in the range [0, Patches.Count - 1] inclusive.

    Return Value

    Returns the value of Patches[patchIndex].Coords.Count
    Example
    Construct Multipatch from another Multipatch
    // create the multipatchBuilderEx object
    var builder = new ArcGIS.Core.Geometry.MultipatchBuilderEx(multipatch);
    
    // check some properties
    bool hasM = builder.HasM;
    bool hasZ = builder.HasZ;
    bool hasID = builder.HasID;
    bool isEmpty = builder.IsEmpty;
    bool hasNormals = builder.HasNormals;
    
    var patches = builder.Patches;
    int patchCount = patches.Count;
    
    // if there's some patches
    if (patchCount > 0)
    {
      int pointCount = builder.GetPatchPointCount(0);
    
      // replace the first point in the first patch
      if (pointCount > 0)
      {
        // get the first point
        var pt = builder.GetPoint(0, 0);
        builder.SetPoint(0, 0, newPoint);
      }
    
      // check which patches currently contain the texture
      var texture = builder.QueryPatchIndicesWithTexture(brickTextureResource);
    
      // assign a texture material
      patches[0].Material = brickMaterialTexture;
    }
    
    // update the builder for M awareness
    builder.HasM = true;
    // synchronize the patch attributes to match the builder attributes
    //   in this instance because we just set HasM to true on the builder, each patch will now get a default M value for it's set of coordinates
    builder.SynchronizeAttributeAwareness();
    
    // call ToGeometry to get the multipatch
    multipatch = builder.ToGeometry() as Multipatch;
    
    // multipatch.HasM will be true
    
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also