DirextX编程

开发平台：
C#

DrawHexClass.cs：源码内容
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//      ■■■■     ■■■■■       ■■■■       ■       ■      //
//    ■                 ■         ■               ■       ■      //
//    ■                 ■         ■    ■■■     ■       ■      //
//    ■                 ■         ■       ■      ■       ■      //
//      ■■■■         ■           ■■■■         ■■■■       //
// Copyright (c) 三峡大学水利与环境学院 肖泽云. All rights reserved.  //
////////////////////////////////////////////////////////////////////////
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
namespace Mesh网格
{
    public class DrawHexClass
    {
        public Mesh MeshObject;
        public Device device;
        public Vector3[] pointVectors;
        public DrawHexClass(Device device, Vector3[] pointVectors)
        {
            this.device = device;
            this.pointVectors = pointVectors;
            MeshObject = DrawHexObject(device, pointVectors);//定义网格            
        }        
        public static Mesh DrawHexObject(Device device, Vector3[] pointVectors)//定义网格
        {
            Mesh meshObject;
            //定义顶点
            CustomVertex.PositionColored[] arrayVertices= new CustomVertex.PositionColored[8];
            //定义索引
            Int16[] arrayIndices = new Int16[36];
            //定义属性
            AttributeRange attributeRange = new AttributeRange();
            //实例化网格对象
            meshObject = new Mesh(arrayIndices.Length / 3, arrayVertices.Length, MeshFlags.SystemMemory, CustomVertex.PositionColored.Format, device);
            //设置顶点坐标值
            arrayVertices[0].Position = pointVectors[0];
            arrayVertices[0].Color = Color.Yellow.ToArgb();
            arrayVertices[1].Position = pointVectors[1];
            arrayVertices[1].Color = Color.Red.ToArgb();
            arrayVertices[2].Position = pointVectors[2];
            arrayVertices[2].Color = Color.Green.ToArgb();
            arrayVertices[3].Position = pointVectors[3];
            arrayVertices[3].Color = Color.Gold.ToArgb();
            arrayVertices[4].Position = pointVectors[4];
            arrayVertices[4].Color = Color.GhostWhite.ToArgb();
            arrayVertices[5].Position = pointVectors[5];
            arrayVertices[5].Color = Color.LightPink.ToArgb();
            arrayVertices[6].Position = pointVectors[6];
            arrayVertices[6].Color = Color.Maroon.ToArgb();
            arrayVertices[7].Position = pointVectors[7];
            //设置索引,顶部三角形
            arrayIndices[0] = 0; arrayIndices[1] = 1; arrayIndices[2] = 3;
            arrayIndices[3] = 3; arrayIndices[4] = 1; arrayIndices[5] = 2;
            //周围三角形
            arrayIndices[6] = 4; arrayIndices[7] = 0; arrayIndices[8] = 7;
            arrayIndices[9] = 7; arrayIndices[10] = 0; arrayIndices[11] = 3;
            arrayIndices[12] = 7; arrayIndices[13] = 3; arrayIndices[14] = 6;
            arrayIndices[15] = 6; arrayIndices[16] = 3; arrayIndices[17] = 2;
            arrayIndices[18] = 6; arrayIndices[19] = 2; arrayIndices[20] = 5;
            arrayIndices[21] = 5; arrayIndices[22] = 2; arrayIndices[23] = 1;
            arrayIndices[24] = 5; arrayIndices[25] = 1; arrayIndices[26] = 4;
            arrayIndices[27] = 4; arrayIndices[28] = 1; arrayIndices[29] = 0;
            //底部三角形
            arrayIndices[30] = 5; arrayIndices[31] = 4; arrayIndices[32] = 7;
            arrayIndices[33] = 7; arrayIndices[34] = 6; arrayIndices[35] = 5;
            //设置属性
            attributeRange.AttributeId = 0;
            attributeRange.FaceStart = 0;
            attributeRange.FaceCount = arrayIndices.Length / 3;
            attributeRange.VertexStart = 0;
            attributeRange.VertexCount = arrayVertices.Length;
            //设置网格对象的索引缓冲和顶点缓冲数据
            meshObject.VertexBuffer.SetData(arrayVertices, 0, LockFlags.None);
            meshObject.IndexBuffer.SetData(arrayIndices, 0, LockFlags.None);
            meshObject.SetAttributeTable(new AttributeRange[] { attributeRange });
            return meshObject;
        }
    }
}

						