C#编程之3D平移布局

这里我们主要讲一下3D图形以三维面平移的设计方法。

3D图按照三维平移，可以有上，下，左，右，前，后 ，共6个方向，我们分别将这六个操作由按键来实现操作。

对于按键的布局我们上下为一列，左右前后为一行。

            <DockPanel.Resources>
                <Style TargetType="Button">
                    <Setter Property="HorizontalAlignment" Value="Center"/>
                    <Setter Property="Padding" Value="3"/>
                </Style>
            </DockPanel.Resources>
            
            <StackPanel DockPanel.Dock="Top" Background="Gray" Height="auto">
                <Button Click="up_Click">↑</Button>
                <Button Click="down_Click">↓</Button>
                <StackPanel HorizontalAlignment="Center"
                   Orientation="Horizontal">
                    <Button Click="left_Click">←</Button>
                    <Button Click="right_Click">→</Button>
                    <Button Click="out_Click">↖</Button>
                    <Button Click="in_Click">↘</Button>
                </StackPanel>
            </StackPanel>

private void up_Click(object sender, RoutedEventArgs e)

{

    transform.OffsetY++;

}

 

private void left_Click(object sender, RoutedEventArgs e)

{

    transform.OffsetX--;

}

 

private void out_Click(object sender, RoutedEventArgs e)

{

    transform.OffsetZ--;

}

 

private void in_Click(object sender, RoutedEventArgs e)

{

    transform.OffsetZ++;

}

 

private void right_Click(object sender, RoutedEventArgs e)

{

    transform.OffsetX++;

}

 

private void down_Click(object sender, RoutedEventArgs e)

{

    transform.OffsetY—;

}

首先定义按键样式原模板，接着按键叠加方式有上至下，背景为灰色，高度自动调整，在放置上下按键后，创建由中心开始的横向排列按键，同时为所有的按键添加按键点击事件处理函数，效果：

接着，创建一个三维图形：

            <Viewport3D Width="600" Margin="0,0,0,0">
                <Viewport3D.Camera>
                    <PerspectiveCamera Position="-2.5 2.5 5" LookDirection="0.5 -0.5 -1"/>
                </Viewport3D.Camera>
                <ModelVisual3D>
                    <ModelVisual3D.Content>
                        <Model3DGroup>
                            <DirectionalLight Direction="1 0 -7"
                            Color="White"/>
                            <GeometryModel3D>
                                <GeometryModel3D.Geometry>
                                    <MeshGeometry3D Positions="-1 1 1, 1 1 1, -1 -1 1, 1 -1 1, -1 1 -1, 1 1 -1, -1 -1 -1, 1 -1 -1
                                                       1 1 1, 1 1 -1, 1 -1 1, 1 -1 -1, -1 1 1, -1 1 -1, -1 -1 1, -1 -1 -1
                                                       -1 1 1, -1 1 -1, 1 1 1, 1 1 -1, -1 -1 1, -1 -1 -1, 1 -1 1, 1 -1 -1"
                                           TriangleIndices="0 2 1, 1 2 3, 5 6 4, 5 7 6
                                                             8 10 9, 9 10 11, 13 14 12, 13 15 14
                                                             16 18 17, 17 18 19, 22 21 20, 22 23 21"/>
                                </GeometryModel3D.Geometry>

                                <GeometryModel3D.Material>
                                    <DiffuseMaterial Brush="Green"/>
                                </GeometryModel3D.Material>

                                <GeometryModel3D.BackMaterial>
                                    <DiffuseMaterial Brush="Red"/>
                                </GeometryModel3D.BackMaterial>
                            </GeometryModel3D>
                        </Model3DGroup>
                    </ModelVisual3D.Content>

                    <ModelVisual3D.Transform>
                        <TranslateTransform3D x:Name="transform" />
                    </ModelVisual3D.Transform>

                </ModelVisual3D>
            </Viewport3D>

首先是创建一个三维可视区： <Viewport3D Width="600" Margin="0,0,0,0"> 

调整相机位置与方向

                <Viewport3D.Camera>
                    <PerspectiveCamera Position="-2.5,2.5,5" LookDirection="0.5,-0.5,1"/>
                </Viewport3D.Camera>