// Copyright 2012 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using ESRI.ArcGIS.Geometry;
using System;

namespace MultiPatchExamples
{
    public static class TrianglesExamples
    {
        private static object _missing = Type.Missing;

        public static IGeometry GetExample1()
        {
            //Triangles: One Triangle Lying On XY Plane

            IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();

            IPointCollection trianglesPointCollection = new TrianglesClass();

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 2.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 2.5, 0), ref _missing, ref _missing);

            multiPatchGeometryCollection.AddGeometry(trianglesPointCollection as IGeometry, ref _missing, ref _missing);

            return multiPatchGeometryCollection as IGeometry;
        }

        public static IGeometry GetExample2()
        {
            //Triangles: One Upright Triangle

            IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();

            IPointCollection trianglesPointCollection = new TrianglesClass();

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 2.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 2.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 2.5, 7.5), ref _missing, ref _missing);

            multiPatchGeometryCollection.AddGeometry(trianglesPointCollection as IGeometry, ref _missing, ref _missing);

            return multiPatchGeometryCollection as IGeometry;
        }

        public static IGeometry GetExample3()
        {
            //Triangles: Three Upright Triangles

            IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();

            IPointCollection trianglesPointCollection = new TrianglesClass();

            //Triangle 1

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 2.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 2.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 2.5, 7.5), ref _missing, ref _missing);

            //Triangle 2

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 2.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 2.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-2.5, 2.5, 7.5), ref _missing, ref _missing);

            //Triangle 3

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-2.5, -2.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-2.5, -2.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, -2.5, 7.5), ref _missing, ref _missing);

            multiPatchGeometryCollection.AddGeometry(trianglesPointCollection as IGeometry, ref _missing, ref _missing);

            return multiPatchGeometryCollection as IGeometry;
        }

        public static IGeometry GetExample4()
        {
            //Triangles: Six Triangles Lying In Different Planes

            IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();

            IPointCollection trianglesPointCollection = new TrianglesClass();

            //Triangle 1

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 5, 0), ref _missing, ref _missing);

            //Triangle 2

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 5, 0), ref _missing, ref _missing);

            //Triangle 3

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, -5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -7.5, 0), ref _missing, ref _missing);

            //Triangle 4

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, 2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, 0), ref _missing, ref _missing);

            //Triangle 5

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, 2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, -7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, 0), ref _missing, ref _missing);

            //Triangle 6

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, 2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, -7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, 0), ref _missing, ref _missing);

            multiPatchGeometryCollection.AddGeometry(trianglesPointCollection as IGeometry, ref _missing, ref _missing);

            return multiPatchGeometryCollection as IGeometry;
        }

        public static IGeometry GetExample5()
        {
            //Triangles: Eighteen Triangles Lying In Different Planes

            IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();

            IPointCollection trianglesPointCollection = new TrianglesClass();

            //Z > 0

            //Triangle 1

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, 7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 5, 5), ref _missing, ref _missing);

            //Triangle 2

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 5, 5), ref _missing, ref _missing);

            //Triangle 3

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, -5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -7.5, 5), ref _missing, ref _missing);

            //Triangle 4

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, 5), ref _missing, ref _missing);

            //Triangle 5

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, -7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, 5), ref _missing, ref _missing);

            //Triangle 6

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, 7.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, -7.5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, 5), ref _missing, ref _missing);

            //Z = 0

            //Triangle 1

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 5, 0), ref _missing, ref _missing);

            //Triangle 2

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 5, 0), ref _missing, ref _missing);

            //Triangle 3

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, -5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -7.5, 0), ref _missing, ref _missing);

            //Triangle 4

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, 2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, 0), ref _missing, ref _missing);

            //Triangle 5

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, 2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, -7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, 0), ref _missing, ref _missing);

            //Triangle 6

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, 2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, -7.5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, 0), ref _missing, ref _missing);

            //Z < 0

            //Triangle 1

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, 7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, 5, -5), ref _missing, ref _missing);

            //Triangle 2

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, 7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, 5, -5), ref _missing, ref _missing);

            //Triangle 3

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, -5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, -7.5, -5), ref _missing, ref _missing);

            //Triangle 4

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, -2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(2.5, 7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 7.5, -5), ref _missing, ref _missing);

            //Triangle 5

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, -2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-5, -7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(-7.5, -7.5, -5), ref _missing, ref _missing);

            //Triangle 6

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, -2.5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(10, -7.5, -5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(7.5, -7.5, -5), ref _missing, ref _missing);

            multiPatchGeometryCollection.AddGeometry(trianglesPointCollection as IGeometry, ref _missing, ref _missing);

            return multiPatchGeometryCollection as IGeometry;
        }

        public static IGeometry GetExample6()
        {
            //Triangles: Closed Box Constructed From Single Triangles Part Composed Of 12 Triangles

            IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass() as IGeometryCollection;

            IPointCollection trianglesPointCollection = new TrianglesClass() as IPointCollection;

            //Bottom

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 0), ref _missing, ref _missing);

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 0), ref _missing, ref _missing);

            //Side 1

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 5), ref _missing, ref _missing);

            //Side 2

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 0), ref _missing, ref _missing);

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 5), ref _missing, ref _missing);

            //Side 3

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 0), ref _missing, ref _missing);

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 5), ref _missing, ref _missing);

            //Side 4

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 0), ref _missing, ref _missing);

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 0), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 5), ref _missing, ref _missing);

            //Top

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 5), ref _missing, ref _missing);

            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(0, 0, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 5, 5), ref _missing, ref _missing);
            trianglesPointCollection.AddPoint(GeometryUtilities.ConstructPoint3D(5, 0, 5), ref _missing, ref _missing);

            multiPatchGeometryCollection.AddGeometry(trianglesPointCollection as IGeometry, ref _missing, ref _missing);

            return multiPatchGeometryCollection as IGeometry;
        }    
    }
}