背水一战 Windows 10 (70)

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背水一战 Windows 10 (70) - 控件（控件基类）: UIElement - Transform3D（3D变换）, Projection（3D投影）

作者：webabcd


介绍
背水一战 Windows 10 之 控件（控件基类 - UIElement）

• Transform3D（3D变换）
• Projection（3D投影）

示例
1、演示 UIElement 的 3D 变换的应用
Controls/BaseControl/UIElementDemo/Transform3DDemo.xaml

<Page
    x:Class="Windows10.Controls.BaseControl.UIElementDemo.Transform3DDemo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Windows10.Controls.BaseControl.UIElementDemo"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        
        <!--
            UIElement - UIElement
                Transform3D - 3D 变换（通过 CompositeTransform3D 结合 PerspectiveTransform3D 来完成 3D 变换）
        -->
        
        <Grid.Transform3D>
            <!--
                PerspectiveTransform3D - 让指定的空间内的元素支持通过 CompositeTransform3D 来实现 3D 变换
                    OffsetX - 透视原点相对于元素中心的 x 方向的偏移量
                    OffsetY - 透视原点相对于元素中心的 y 方向的偏移量
                    Depth - 到 z=0 的平面的距离，必须大于 0，默认值为 1000
            -->
            <PerspectiveTransform3D OffsetX="{x:Bind sliderOX.Value, Mode=OneWay}" 
                                    OffsetY="{x:Bind sliderOY.Value, Mode=OneWay}" 
                                    Depth="{x:Bind sliderD.Value, Mode=OneWay}">
                
            </PerspectiveTransform3D>
        </Grid.Transform3D>

        <StackPanel HorizontalAlignment="Center">
            <Image Source="/Assets/hololens.jpg" Width="200" Height="200" Name="image" Margin="5">
                <Image.Transform3D>
                    <!--
                        CompositeTransform3D - 为 UIElement 实现 3D 变换（此 UIElement 的祖辈必须要设置了 PerspectiveTransform3D）
                            CenterX, CenterY, CenterZ - 3D 变换的中心点位置（单位：像素）
                            RotationX, RotationY, RotationZ - 3D 变换的旋转角度（单位：度）
                            ScaleX, ScaleY, ScaleZ - 3D 变换的缩放比例
                            TranslateX, TranslateY, TranslateZ - 3D 变换的位移距离（单位：像素）
                    
                        注意：x 坐标向右为正，y 坐标向下为正，z 坐标向你为正（左手坐标系）
                    -->
                    <CompositeTransform3D CenterX="{x:Bind sliderCX.Value, Mode=OneWay}" 
                                          CenterY="{x:Bind sliderCY.Value, Mode=OneWay}" 
                                          CenterZ="{x:Bind sliderCZ.Value, Mode=OneWay}"
                                          
                                          RotationX="{x:Bind sliderRX.Value, Mode=OneWay}" 
                                          RotationY="{x:Bind sliderRY.Value, Mode=OneWay}" 
                                          RotationZ="{x:Bind sliderRZ.Value, Mode=OneWay}"
                                          
                                          ScaleX="{x:Bind sliderSX.Value, Mode=OneWay}" 
                                          ScaleY="{x:Bind sliderSY.Value, Mode=OneWay}" 
                                          ScaleZ="{x:Bind sliderSZ.Value, Mode=OneWay}"
                                          
                                          TranslateX="{x:Bind sliderTX.Value, Mode=OneWay}" 
                                          TranslateY="{x:Bind sliderTY.Value, Mode=OneWay}" 
                                          TranslateZ="{x:Bind sliderTZ.Value, Mode=OneWay}">
                    </CompositeTransform3D>
                </Image.Transform3D>
            </Image>

            <StackPanel Orientation="Horizontal" Margin="5">
                <Slider Name="sliderOX" Minimum="-100" Maximum="100" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="OffsetX: "/>
                            <TextBlock Text="{x:Bind sliderOX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderOY" Minimum="-100" Maximum="100" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="OffsetY: "/>
                            <TextBlock Text="{x:Bind sliderOY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderD" Minimum="100" Maximum="5000" Value="1000" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="Depth: "/>
                            <TextBlock Text="{x:Bind sliderD.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal" Margin="5">
                <Slider Name="sliderCX" Minimum="-300" Maximum="300" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="CenterX: "/>
                            <TextBlock Text="{x:Bind sliderCX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderCY" Minimum="-300" Maximum="300" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="CenterY: "/>
                            <TextBlock Text="{x:Bind sliderCY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderCZ" Minimum="-300" Maximum="300" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="CenterZ: "/>
                            <TextBlock Text="{x:Bind sliderCZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal" Margin="5">
                <Slider Name="sliderRX" Minimum="0" Maximum="360" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="RotationX: "/>
                            <TextBlock Text="{x:Bind sliderRX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderRY" Minimum="0" Maximum="360" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="RotationY: "/>
                            <TextBlock Text="{x:Bind sliderRY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderRZ" Minimum="0" Maximum="360" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="RotationZ: "/>
                            <TextBlock Text="{x:Bind sliderRZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal" Margin="5">
                <Slider Name="sliderSX" Minimum="0.1" Maximum="10" StepFrequency="0.1" Value="1" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="ScaleX: "/>
                            <TextBlock Text="{x:Bind sliderSX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderSY" Minimum="0.1" Maximum="10" StepFrequency="0.1" Value="1" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="ScaleY: "/>
                            <TextBlock Text="{x:Bind sliderSY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderSZ" Minimum="0.1" Maximum="10" StepFrequency="0.1" Value="1" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="ScaleZ: "/>
                            <TextBlock Text="{x:Bind sliderSZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal" Margin="5">
                <Slider Name="sliderTX" Minimum="-100" Maximum="100" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="TranslateX: "/>
                            <TextBlock Text="{x:Bind sliderTX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderTY" Minimum="-100" Maximum="100" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="TranslateY: "/>
                            <TextBlock Text="{x:Bind sliderTY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderTZ" Minimum="-100" Maximum="100" Width="200" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="TranslateZ: "/>
                            <TextBlock Text="{x:Bind sliderTZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>
        </StackPanel>
    </Grid>
</Page>

Controls/BaseControl/UIElementDemo/Transform3DDemo.xaml.cs

/*
 * UIElement - UIElement（继承自 DependencyObject, 请参见 /Controls/BaseControl/DependencyObjectDemo/）
 *     Transform3D - 3D 变换
 *     
 *     
 * 本例用于演示 UIElement 的 3D 变换的应用
 */

using Windows.UI.Xaml.Controls;

namespace Windows10.Controls.BaseControl.UIElementDemo
{
    public sealed partial class Transform3DDemo : Page
    {
        public Transform3DDemo()
        {
            this.InitializeComponent();
        }
    }
}

2、演示 UIElement 的投影（模拟 3D 效果）的应用
Controls/BaseControl/UIElementDemo/ProjectionDemo.xaml

<Page
    x:Class="Windows10.Controls.BaseControl.UIElementDemo.ProjectionDemo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Windows10.Controls.BaseControl.UIElementDemo"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="Transparent">
        <StackPanel Margin="10 0 10 10" HorizontalAlignment="Center">

            <!--
                Projection - 投影（模拟 3D 效果，可用类型有 PlaneProjection 和 Matrix3DProjection）
            
                PlaneProjection - 将对象投影到平面（通过 x,y,z 方向的旋转和位移控制投影），用于模拟出 UIElement 的 3D 效果
                    RotationX, RotationY, RotationZ - 绕 X轴, Y轴, Z轴 旋转的角度
                    CenterOfRotationX, CenterOfRotationY, CenterOfRotationZ - X轴, Y轴, Z轴 旋转中心点的位置
                        CenterOfRotationX - 相对值，默认值为 0.5 即中心，0 代表 UIElement 的最左端，1 代表 UIElement 的最右端，可以小于 0 也可以大于 1
                        CenterOfRotationY - 相对值，默认值为 0.5 即中心，0 代表 UIElement 的最顶端，1 代表 UIElement 的最底端，可以小于 0 也可以大于 1
                        CenterOfRotationZ - 像素值，默认值为 0，靠向你的方向为正，远离你的方向为负（即左手坐标系）
                    GlobalOffsetX, GlobalOffsetY, GlobalOffsetZ - 沿 X轴, Y轴, Z轴 的偏移量，此 3 个方向与屏幕的 3 个方向相同
                    LocalOffsetX, LocalOffsetY, LocalOffsetZ - 沿 X轴, Y轴, Z轴 的偏移量，此 3 个方向与相关的 UIElement 当前的 3 个方向相同
                    ProjectionMatrix - 获取当前投影的 Matrix3D 投影矩阵
            
                Matrix3DProjection - 将对象投影到平面（通过 Matrix3D 矩阵控制投影），用于模拟出 UIElement 的 3D 效果
                    ProjectionMatrix - 获取或设置当前投影的 Matrix3D 投影矩阵
            -->

            <Grid HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0 20 0 0">
                <Rectangle Width="200" Height="100" StrokeDashArray="3,1" Stroke="Blue" StrokeThickness="3" />
                <Rectangle Width="200" Height="100" Fill="Yellow" Stroke="Red" StrokeThickness="3" Opacity="0.3">
                    <Rectangle.Projection>
                        <PlaneProjection x:Name="planeProjection" 
                                         CenterOfRotationX="{x:Bind sliderCRX.Value, Mode=OneWay}"
                                         CenterOfRotationY="{x:Bind sliderCRY.Value, Mode=OneWay}"
                                         CenterOfRotationZ="{x:Bind sliderCRZ.Value, Mode=OneWay}"
                                         
                                         RotationX="{x:Bind sliderRX.Value, Mode=OneWay}"
                                         RotationY="{x:Bind sliderRY.Value, Mode=OneWay}"
                                         RotationZ="{x:Bind sliderRZ.Value, Mode=OneWay}"
                                         
                                         LocalOffsetX="{x:Bind sliderLOX.Value, Mode=OneWay}"
                                         LocalOffsetY="{x:Bind sliderLOY.Value, Mode=OneWay}"
                                         LocalOffsetZ="{x:Bind sliderLOZ.Value, Mode=OneWay}"
                                         
                                         GlobalOffsetX="{x:Bind sliderGOX.Value, Mode=OneWay}"
                                         GlobalOffsetY="{x:Bind sliderGOY.Value, Mode=OneWay}"
                                         GlobalOffsetZ="{x:Bind sliderGOZ.Value, Mode=OneWay}">
                        </PlaneProjection>
                    </Rectangle.Projection>
                </Rectangle>
            </Grid>

            <StackPanel Orientation="Horizontal" Margin="0 30 0 0">
                <Slider Name="sliderCRX" Minimum="-1" Maximum="2" StepFrequency="0.1" Value="0.5" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="CenterOfRotationX: "/>
                            <TextBlock Text="{x:Bind sliderCRX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderCRY" Minimum="-1" Maximum="2" StepFrequency="0.1" Value="0.5" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="CenterOfRotationY: "/>
                            <TextBlock Text="{x:Bind sliderCRY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderCRZ" Minimum="-100" Maximum="100" Value="0" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="CenterOfRotationZ: "/>
                            <TextBlock Text="{x:Bind sliderCRZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal">
                <Slider Name="sliderRX" Minimum="0" Maximum="360" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="RotationX: "/>
                            <TextBlock Text="{x:Bind sliderRX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderRY" Minimum="0" Maximum="360" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="RotationY: "/>
                            <TextBlock Text="{x:Bind sliderRY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderRZ" Minimum="0" Maximum="360" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="RotationZ: "/>
                            <TextBlock Text="{x:Bind sliderRZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal">
                <Slider Name="sliderLOX" Minimum="-150" Maximum="150" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="LocalOffsetX: "/>
                            <TextBlock Text="{x:Bind sliderLOX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderLOY" Minimum="-150" Maximum="150" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="LocalOffsetY: "/>
                            <TextBlock Text="{x:Bind sliderLOY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderLOZ" Minimum="-150" Maximum="150" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="LocalOffsetZ: "/>
                            <TextBlock Text="{x:Bind sliderLOZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>

            <StackPanel Orientation="Horizontal">
                <Slider Name="sliderGOX" Minimum="-150" Maximum="150" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="GlobalOffsetX: "/>
                            <TextBlock Text="{x:Bind sliderGOX.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderGOY" Minimum="-150" Maximum="150" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="GlobalOffsetY: "/>
                            <TextBlock Text="{x:Bind sliderGOY.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
                <Slider Name="sliderGOZ" Minimum="-150" Maximum="150" Width="200" HorizontalAlignment="Left" Foreground="Orange" Background="White" Style="{StaticResource MySliderStyle}" Margin="10">
                    <Slider.Header>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="GlobalOffsetZ: "/>
                            <TextBlock Text="{x:Bind sliderGOZ.Value, Mode=OneWay}" />
                        </StackPanel>
                    </Slider.Header>
                </Slider>
            </StackPanel>
        </StackPanel>
    </Grid>
</Page>

Controls/BaseControl/UIElementDemo/ProjectionDemo.xaml.cs

/*
 * UIElement - UIElement（继承自 DependencyObject, 请参见 /Controls/BaseControl/DependencyObjectDemo/）
 *     Projection - 投影（模拟 3D 效果）
 *         PlaneProjection - 将对象投影到平面（通过 x,y,z 方向的旋转和位移控制投影）
 *         Matrix3DProjection - 将对象投影到平面（通过 Matrix3D 矩阵控制投影）
 *     
 *     
 * 本例用于演示 UIElement 的投影（模拟 3D 效果）的应用
 */

using Windows.UI.Xaml.Controls;

namespace Windows10.Controls.BaseControl.UIElementDemo
{
    public sealed partial class ProjectionDemo : Page
    {
        public ProjectionDemo()
        {
            this.InitializeComponent();
        }
    }
}

OK
[源码下载]