/// <summary>
/// 创建并加载点云
/// </summary>
/// <returns></returns>
IRenderModelPoint CreatePointCloud()
{
//准备容器
IModel model = new ResourceFactory().CreateModel();
IDrawGroup drawGroup = new DrawGroup();
IDrawPrimitive drawPrimitive = new DrawPrimitive();
IFloatArray verList = new FloatArray(); //点集
IUInt32Array colorList = new UInt32Array(); //点色
//点坐标
float x = 3.3f, y = 4.4f, z = 5.5f;
//点色
byte a = 128, r = 255, g = 255, b = 255;
uint col = (uint)(b | g << 8 | r << 16 | a << 24); //argb => uint
for (int i = 0; i < 10; i++)
{
verList.Append(x);
verList.Append(y);
verList.Append(z);
colorList.Append(col);
}
//塞入容器
drawPrimitive.VertexArray = verList;
drawPrimitive.ColorArray = colorList;
drawPrimitive.Material.EnableBlend = false; //关闭融合
drawPrimitive.Material.EnableLight = false; //关闭光照
drawPrimitive.PrimitiveMode = gviPrimitiveMode.gviPrimitiveModeLineList; //设置绘制模式为点
drawGroup.AddPrimitive(drawPrimitive); //塞入渲染组
model.AddGroup(drawGroup); //塞入model
axRenderControl.ObjectManager.AddModel("modelName", model); //塞入三维对象，与modelPoint通过名称匹配
//创建modelPoint,用于索引模型
IModelPoint mp = (IModelPoint) new GeometryFactory().CreateGeometry(gviGeometryType.gviGeometryModelPoint, gviVertexAttribute.gviVertexAttributeZ);
mp.SpatialCRS = (SpatialCRS)CRSFactory.CreateFromWKT("wkt"); //设置坐标系
mp.ModelEnvelope = model.Envelope; // 排除不显示BUG
mp.SetCoords(3.3, 4.4, 5.5, 0, 0);
mp.ModelName = "modelName"; //匹配模型
return(axRenderControl.ObjectManager.CreateRenderModelPoint(mp, null, Guid.Empty)); //创建完成
}
private IModel CreateModel(float lenght, float width, float height, uint color)
{
IModel model = new ResourceFactory().CreateModel();
IDrawGroup group = new DrawGroup();
IDrawPrimitive primitive = new DrawPrimitive();
IFloatArray vertexArray = new FloatArray();
IFloatArray textureArray = new FloatArray();
IUInt32Array colorArray = new UInt32Array();
#region
//顶点数组3个为一组(三角面1)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
//顶点数组3个为一组(三角面2)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
//顶点数组3个为一组(三角面3)
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面4)
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面5)
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面6)
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面7)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
//顶点数组3个为一组(三角面8)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面9)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面10)
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面11)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面12)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(lenght);
#endregion
#region
//颜色数组1个为一组
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
#endregion
#region
//纹理数组2个为一组
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
#endregion
primitive.ColorArray = colorArray;
primitive.TexcoordArray = textureArray;
primitive.VertexArray = vertexArray;
IDrawMaterial material = new DrawMaterial();
material.EnableLight = true;
primitive.Material = material;
group.AddPrimitive(primitive);
//光照效果，跟法向有关
group.ComputeNormal();
model.AddGroup(group);
return(model);
}