WPF 最基本的前后台代码对照

最基本的3D代码对照

xaml代码

<Viewport3D>

            <Viewport3D.Camera>

                <PerspectiveCamera Position="0, 0, 4"/>

            </Viewport3D.Camera>

            <!-- Button on 3D -->

            <Viewport2DVisual3D>

                <!-- Give the plane a slight rotation -->

                <Viewport2DVisual3D.Transform>

                    <RotateTransform3D>

                        <RotateTransform3D.Rotation>

                            <AxisAngleRotation3D Angle="" Axis="0, 1, 0" />

                        </RotateTransform3D.Rotation>

                    </RotateTransform3D>

                </Viewport2DVisual3D.Transform>

                <!-- The Geometry, Material, and Visual for the Viewport2DVisual3D -->

                <Viewport2DVisual3D.Geometry>

                    <MeshGeometry3D Positions="-1,1,0 -1,-1,0 1,-1,0 1,1,0"

                                    TextureCoordinates="0,0 0,1 1,1 1,0" TriangleIndices="0 1 2 0 2 3"/>

                </Viewport2DVisual3D.Geometry>

                <Viewport2DVisual3D.Material>

                    <DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True" Brush="White"/>

                </Viewport2DVisual3D.Material>

                <Button>Hello, 3D</Button>

            </Viewport2DVisual3D>

            <!-- Lights -->

            <ModelVisual3D>

                <ModelVisual3D.Content>

                    <DirectionalLight Color="#FFFFFFFF" Direction="0,0,-1"/>

                </ModelVisual3D.Content>

            </ModelVisual3D>

        </Viewport3D>

cs后台对照写法

private void Init_Draw()

        {

            Viewport3D viewport3D = new Viewport3D();

            PerspectiveCamera perspectiveCamera = new PerspectiveCamera()

            {

                Position = new Point3D(, , ),

            };

            viewport3D.Camera = perspectiveCamera;

            Viewport2DVisual3D viewport2DVisual3D = new Viewport2DVisual3D();

            RotateTransform3D rotateTransform3D = new RotateTransform3D();

            AxisAngleRotation3D axisAngleRotation3D = new AxisAngleRotation3D()

            {

                Angle = ,

                Axis = new Vector3D(, , ),

            };

            rotateTransform3D.Rotation = axisAngleRotation3D;

            viewport2DVisual3D.Transform = rotateTransform3D;

            MeshGeometry3D meshGeometry3D = new MeshGeometry3D()

            {

                Positions = new Point3DCollection(new Point3D[] { new Point3D(-, , ), new Point3D(-, -, ), new Point3D(, -, ), new Point3D(, , ) }),

                TextureCoordinates = new PointCollection { new Point(, ), new Point(, ), new Point(, ), new Point(, ) },

                TriangleIndices = new Int32Collection(new int[] { , , , , ,  }),

            };

            viewport2DVisual3D.Geometry = meshGeometry3D;

            DiffuseMaterial diffuseMaterial = new DiffuseMaterial();

            Viewport2DVisual3D.SetIsVisualHostMaterial(diffuseMaterial, true);

            viewport2DVisual3D.Material = diffuseMaterial;

            Button button = new Button()

            {

                Content = "Hello,3D",
　　　　　　　　　 Direction = new Vector3D(0, 0, -1),

            };

            viewport2DVisual3D.Visual = button;

            ModelVisual3D modelVisual3D = new ModelVisual3D();

            DirectionalLight directionalLight = new DirectionalLight()

            {

                Color = Color.FromRgb(, , ),
                Direction = new Vector3D(0, 0, -1),

            };

            modelVisual3D.Content = directionalLight;

            viewport3D.Children.Add(viewport2DVisual3D);

            viewport3D.Children.Add(modelVisual3D);

            Grid组件.Children.Add(viewport3D);

        }

引伸一下，按照1:1大小显示原始组件，写入原始宽度和高度。显示出来的是原始UserControl的大小

private void Init_Draw(FrameworkElement element,double width,double height)

        {

            double Mesh_Width = width / ;

            double Mesh_Height = height / ;

            Viewport3D viewport3D = new Viewport3D();

            viewport3D.Width = width * ;

            PerspectiveCamera perspectiveCamera = new PerspectiveCamera();

            double fieldOfViewInRadians = perspectiveCamera.FieldOfView * (Math.PI / 180.0);

            var z = (0.5 * viewport3D.Width) / Math.Tan(0.5 * fieldOfViewInRadians);

            perspectiveCamera.Position = new Point3D(, , z);

            perspectiveCamera.LookDirection = new Vector3D(, , -);

            viewport3D.Camera = perspectiveCamera;

            Viewport2DVisual3D viewport2DVisual3D = new Viewport2DVisual3D();

            RotateTransform3D rotateTransform3D = new RotateTransform3D();

            axisAngleRotation3D = new AxisAngleRotation3D()

            {

                Angle = ,

                Axis = new Vector3D(, , ),

            };

            rotateTransform3D.Rotation = axisAngleRotation3D;

            viewport2DVisual3D.Transform = rotateTransform3D;

            MeshGeometry3D meshGeometry3D = new MeshGeometry3D()

            {

                Positions = new Point3DCollection(new Point3D[] {

                        new Point3D(-Mesh_Width, Mesh_Height, ),

                        new Point3D(-Mesh_Width, -Mesh_Height, ),

                        new Point3D(Mesh_Width, -Mesh_Height, ),

                        new Point3D(Mesh_Width, Mesh_Height, )

                    }

                ),

                TextureCoordinates = new PointCollection { new Point(, ), new Point(, ), new Point(, ), new Point(, ) },

                TriangleIndices = new Int32Collection(new int[] { , , , , ,  }),

            };

            viewport2DVisual3D.Geometry = meshGeometry3D;

            DiffuseMaterial diffuseMaterial = new DiffuseMaterial();

            Viewport2DVisual3D.SetIsVisualHostMaterial(diffuseMaterial, true);

            viewport2DVisual3D.Material = diffuseMaterial;

            viewport2DVisual3D.Visual = element;

            element.MouseDown += Element_MouseDown;

            ModelVisual3D modelVisual3D = new ModelVisual3D();

            DirectionalLight directionalLight = new DirectionalLight()

            {

                Color = Color.FromRgb(, , ),

                Direction = new Vector3D(, , -),

            };

            modelVisual3D.Content = directionalLight;

            viewport3D.Children.Add(viewport2DVisual3D);

            viewport3D.Children.Add(modelVisual3D);

            MainGrid.Children.Add(viewport3D);

        }