About the 3D multipatch examples Sample
[C#]
TriangleFanExamples.cs
using ESRI.ArcGIS.Geometry;
using System;
namespace MultiPatchExamples
{
public static class TriangleFanExamples
{
private static object _missing = Type.Missing;
public static IGeometry GetExample1()
{
//TriangleFan: Square Lying On XY Plane, Z < 0
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
IPointCollection triangleFanPointCollection = new TriangleFanClass();
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 6, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 6, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, -6, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, -5), ref _missing, ref _missing);
multiPatchGeometryCollection.AddGeometry(triangleFanPointCollection as IGeometry, ref _missing, ref _missing);
return multiPatchGeometryCollection as IGeometry;
}
public static IGeometry GetExample2()
{
//TriangleFan: Upright Square
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
IPointCollection triangleFanPointCollection = new TriangleFanClass();
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 0, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 0, 5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, -5), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 0, -5), ref _missing, ref _missing);
multiPatchGeometryCollection.AddGeometry(triangleFanPointCollection as IGeometry, ref _missing, ref _missing);
return multiPatchGeometryCollection as IGeometry;
}
public static IGeometry GetExample3()
{
//TriangleFan: Square Based Pyramid
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
IPointCollection triangleFanPointCollection = new TriangleFanClass();
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 7), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 6, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 6, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, -6, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, 0), ref _missing, ref _missing);
multiPatchGeometryCollection.AddGeometry(triangleFanPointCollection as IGeometry, ref _missing, ref _missing);
return multiPatchGeometryCollection as IGeometry;
}
public static IGeometry GetExample4()
{
//TriangleFan: Triangle Based Pyramid
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
IPointCollection triangleFanPointCollection = new TriangleFanClass();
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 6), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(3), -3, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 6, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(3), -3, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(3), -3, 0), ref _missing, ref _missing);
multiPatchGeometryCollection.AddGeometry(triangleFanPointCollection as IGeometry, ref _missing, ref _missing);
return multiPatchGeometryCollection as IGeometry;
}
public static IGeometry GetExample5()
{
//TriangleFan: Alternating Fan
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
IPointCollection triangleFanPointCollection = new TriangleFanClass();
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -6, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), -3 * Math.Sqrt(2), -3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 0, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), 3 * Math.Sqrt(2), -3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 6, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(2), 3 * Math.Sqrt(2), -3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 0, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(2), -3 * Math.Sqrt(2), -3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -6, 3), ref _missing, ref _missing);
multiPatchGeometryCollection.AddGeometry(triangleFanPointCollection as IGeometry, ref _missing, ref _missing);
return multiPatchGeometryCollection as IGeometry;
}
public static IGeometry GetExample6()
{
//TriangleFan: Partial Fan, Two Levels Of Zs
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
IPointCollection triangleFanPointCollection = new TriangleFanClass();
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -6, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), -3 * Math.Sqrt(2), 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 0, 3), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), 3 * Math.Sqrt(2), 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 6, 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(2), 3 * Math.Sqrt(2), 0), ref _missing, ref _missing);
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 0, 0), ref _missing, ref _missing);
multiPatchGeometryCollection.AddGeometry(triangleFanPointCollection as IGeometry, ref _missing, ref _missing);
return multiPatchGeometryCollection as IGeometry;
}
}
}
[Visual Basic .NET]
TriangleFanExamples.vb
Imports Microsoft.VisualBasic
Imports ESRI.ArcGIS.Geometry
Imports System
Public Class TriangleFanExamples
Private Shared _missing As Object = Type.Missing
Private Sub New()
End Sub
Public Shared Function GetExample1() As IGeometry
'TriangleFan: Square Lying On XY Plane, Z < 0
Dim multiPatchGeometryCollection As IGeometryCollection = New MultiPatchClass()
Dim triangleFanPointCollection As IPointCollection = New TriangleFanClass()
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 6, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 6, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, -6, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, -5), _missing, _missing)
multiPatchGeometryCollection.AddGeometry(TryCast(triangleFanPointCollection, IGeometry), _missing, _missing)
Return TryCast(multiPatchGeometryCollection, IGeometry)
End Function
Public Shared Function GetExample2() As IGeometry
'TriangleFan: Upright Square
Dim multiPatchGeometryCollection As IGeometryCollection = New MultiPatchClass()
Dim triangleFanPointCollection As IPointCollection = New TriangleFanClass()
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 0, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 0, 5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, -5), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 0, -5), _missing, _missing)
multiPatchGeometryCollection.AddGeometry(TryCast(triangleFanPointCollection, IGeometry), _missing, _missing)
Return TryCast(multiPatchGeometryCollection, IGeometry)
End Function
Public Shared Function GetExample3() As IGeometry
'TriangleFan: Square Based Pyramid
Dim multiPatchGeometryCollection As IGeometryCollection = New MultiPatchClass()
Dim triangleFanPointCollection As IPointCollection = New TriangleFanClass()
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 7), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 6, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 6, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, -6, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, -6, 0), _missing, _missing)
multiPatchGeometryCollection.AddGeometry(TryCast(triangleFanPointCollection, IGeometry), _missing, _missing)
Return TryCast(multiPatchGeometryCollection, IGeometry)
End Function
Public Shared Function GetExample4() As IGeometry
'TriangleFan: Triangle Based Pyramid
Dim multiPatchGeometryCollection As IGeometryCollection = New MultiPatchClass()
Dim triangleFanPointCollection As IPointCollection = New TriangleFanClass()
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 6), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(3), -3, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 6, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(3), -3, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(3), -3, 0), _missing, _missing)
multiPatchGeometryCollection.AddGeometry(TryCast(triangleFanPointCollection, IGeometry), _missing, _missing)
Return TryCast(multiPatchGeometryCollection, IGeometry)
End Function
Public Shared Function GetExample5() As IGeometry
'TriangleFan: Alternating Fan
Dim multiPatchGeometryCollection As IGeometryCollection = New MultiPatchClass()
Dim triangleFanPointCollection As IPointCollection = New TriangleFanClass()
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -6, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), -3 * Math.Sqrt(2), -3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 0, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), 3 * Math.Sqrt(2), -3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 6, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(2), 3 * Math.Sqrt(2), -3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 0, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(2), -3 * Math.Sqrt(2), -3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -6, 3), _missing, _missing)
multiPatchGeometryCollection.AddGeometry(TryCast(triangleFanPointCollection, IGeometry), _missing, _missing)
Return TryCast(multiPatchGeometryCollection, IGeometry)
End Function
Public Shared Function GetExample6() As IGeometry
'TriangleFan: Partial Fan, Two Levels Of Zs
Dim multiPatchGeometryCollection As IGeometryCollection = New MultiPatchClass()
Dim triangleFanPointCollection As IPointCollection = New TriangleFanClass()
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -6, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), -3 * Math.Sqrt(2), 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-6, 0, 3), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-3 * Math.Sqrt(2), 3 * Math.Sqrt(2), 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 6, 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(3 * Math.Sqrt(2), 3 * Math.Sqrt(2), 0), _missing, _missing)
triangleFanPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(6, 0, 0), _missing, _missing)
multiPatchGeometryCollection.AddGeometry(TryCast(triangleFanPointCollection, IGeometry), _missing, _missing)
Return TryCast(multiPatchGeometryCollection, IGeometry)
End Function
End Class