RenderTransform、Projection、Clip、 UseLayoutRounding 说明
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介绍
重新想象 Windows 8 Store Apps 之 控件 UI
- RenderTransform - 变换（用于做位移，旋转，缩放，扭曲等变换）
- Projection - 映射
- Clip - 剪裁并显示 UIElement 的指定区域
- UseLayoutRounding - 是否使用完整像素布局
示例
1、演示 RenderTransform 的应用
Controls/UI/RenderTransform.xaml
<Page x:Class="XamlDemo.Controls.UI.RenderTransform" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:XamlDemo.Controls.UI" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Grid Background="Transparent"> <Grid Margin="120 0 0 0"> <!-- RenderTransform - 变换（用于做位移，旋转，缩放，扭曲等变换） --> <Grid HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <!--RotateTransform - 旋转变换（顺时针）--> <!-- Angle - 旋转角度。默认值 0 CenterX - 旋转中心点的 X 轴坐标。默认值 0 CenterY - 旋转中心点的 Y 轴坐标。默认值 0 --> <RotateTransform Angle="15" CenterX="100" CenterY="50" /> </Rectangle.RenderTransform> </Rectangle> </Grid> <Grid Margin="400 0 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <Rectangle Width="200" Height="100" StrokeDashArray="3,1" Stroke="Blue" StrokeThickness="3" /> <!-- RenderTransformOrigin - 位置变换的中心点 --> <Rectangle Width="200" Height="100" Fill="Yellow" Stroke="Red" StrokeThickness="3" Opacity="0.3" RenderTransformOrigin="0.5,0.5"> <Rectangle.RenderTransform> <RotateTransform Angle="15" /> </Rectangle.RenderTransform> </Rectangle> </Grid> <Grid Margin="800 0 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <!--TranslateTransform - 平移变换--> <!-- X - 水平方向上移动的距离。默认值 0 Y - 垂直方向上移动的距离。默认值 0 --> <TranslateTransform X="100" Y="10" /> </Rectangle.RenderTransform> </Rectangle> </Grid> <Grid Margin="0 200 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <!--ScaleTransform - 缩放变换--> <!-- ScaleX - X 轴方向上缩放的倍数。默认值 1 ScaleY - Y 轴方向上缩放的倍数。默认值 1 CenterX - 缩放中心点的 X 轴坐标。默认值 0 CenterY - 缩放中心点的 Y 轴坐标。默认值 0 --> <ScaleTransform ScaleX="1.1" ScaleY="1.3" CenterX="100" CenterY="50" /> </Rectangle.RenderTransform> </Rectangle> </Grid> <Grid Margin="400 200 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <!--SkewTransform - 扭曲变换（典型应用：在 二维 对象中模拟 三维 深度）--> <!-- CenterX - 扭曲中心点的 X 轴坐标。默认值 0 CenterY - 扭曲中心点的 Y 轴坐标。默认值 0 AngleX - X 轴扭曲角度，Y 轴绕原点旋转（逆时针）。CenterX 对此值所产生的呈现结果没有影响。默认值 0 AngleY - Y 轴扭曲角度，X 轴绕原点旋转（顺时针）。CenterY 对此值所产生的呈现结果没有影响。默认值 0 --> <SkewTransform AngleX="30" AngleY="5" CenterX="0" CenterY="0" /> </Rectangle.RenderTransform> </Rectangle> </Grid> <Grid Margin="800 200 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <!--TransformGroup - 多个 Transform 组成的复合变换--> <TransformGroup> <TranslateTransform X="100" Y="10" /> <RotateTransform Angle="15" CenterX="100" CenterY="50" /> </TransformGroup> </Rectangle.RenderTransform> </Rectangle> </Grid> <!-- CompositeTransform - 将多种变换方式合而为一 CenterX - 变换中心点的 X 坐标 CenterY - 变换中心点的 Y 坐标 Rotation - 顺时针旋转角度 ScaleX - 沿 X 轴方向上的缩放比例 ScaleY - 沿 Y 轴方向上的缩放比例 SkewX - X 轴扭曲角度 SkewY - Y 轴扭曲角度 TranslateX - 沿 X 轴方向上的平移距离 TranslateY - 沿 Y 轴方向上的平移距离 --> <Grid Margin="0 400 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <CompositeTransform SkewX="30" Rotation="60" ScaleX="0.6" ScaleY="0.3" /> </Rectangle.RenderTransform> </Rectangle> </Grid> <!-- MatrixTransform - 仿射矩阵变换 |X| |M11（默认值 1） M21（默认值 0） 0| |Y| = |x y 1| * |M12（默认值 0） M22（默认值 1） 0| |1| |OffsetX（默认值 0） OffsetY（默认值 0） 1| X = x * M11 + y * M12 + OffsetX Y = x * M21 + y * M22 + OffsetY 利用 MatrixTransform 实现平移、旋转、缩放、扭曲的 Demo 详见 http://www.cnblogs.com/webabcd/archive/2008/11/03/1325150.html --> <Grid Margin="400 400 0 0" HorizontalAlignment="Left" VerticalAlignment="Top"> <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.RenderTransform> <!-- m11, m12, m21, m22, offsetX, offsetY --> <MatrixTransform Matrix="1, 0.5, 0, 1, 30, 10" /> </Rectangle.RenderTransform> </Rectangle> </Grid> </Grid> </Grid></Page>
2、演示 Projection 的应用
Controls/UI/Projection.xaml
<Page x:Class="XamlDemo.Controls.UI.Projection" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:XamlDemo.Controls.UI" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Grid Background="Transparent"> <Grid Margin="120 0 0 0"> <!-- Projection - 映射 PlaneProjection - 平面映射，使 UIElement 实现 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 旋转中心点的相对位置（CenterOfRotationX, CenterOfRotationY 默认值为 0.5 ， CenterOfRotationZ 默认值为 0） 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 Matrix3DProjection - 矩阵映射 --> <Grid HorizontalAlignment="Center" VerticalAlignment="Center"> <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" /> </Rectangle.Projection> </Rectangle> </Grid> <StackPanel> <TextBlock FontSize="14.667" Text="RotationX:" Margin="0 10 0 0" /> <Slider Width="150" Minimum="0" Maximum="360" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=RotationX, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="RotationY:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="0" Maximum="360" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=RotationY, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="RotationZ:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="0" Maximum="360" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=RotationZ, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="LocalOffsetX:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="-150" Maximum="150" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=LocalOffsetX, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="LocalOffsetY:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="-150" Maximum="150" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=LocalOffsetY, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="LocalOffsetZ:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="-150" Maximum="150" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=LocalOffsetZ, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="GlobalOffsetX:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="-150" Maximum="150" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=GlobalOffsetX, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="GlobalOffsetY:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="-150" Maximum="150" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=GlobalOffsetY, Mode=TwoWay}" /> <TextBlock FontSize="14.667" Text="GlobalOffsetZ:" Margin="0 -10 0 0" /> <Slider Width="150" Minimum="-150" Maximum="150" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="0 -10 0 0" Value="{Binding ElementName=planeProjection, Path=GlobalOffsetZ, Mode=TwoWay}" /> </StackPanel> </Grid> </Grid></Page>
3、演示 Clip 的应用
Controls/UI/Clip.xaml
<Page x:Class="XamlDemo.Controls.UI.Clip" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:XamlDemo.Controls.UI" 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="120 0 0 0"> <Grid HorizontalAlignment="Left" VerticalAlignment="Top"> <Rectangle Width="200" Height="100" Fill="Red" /> <Rectangle Width="200" Height="100" Fill="Green"> <!-- Clip - 剪裁并显示 UIElement 的指定区域 注：win8 中只能通过 RectangleGeometry 剪裁 UIElement --> <Rectangle.Clip> <RectangleGeometry Rect="10 10 50 50" /> </Rectangle.Clip> </Rectangle> </Grid> </StackPanel> </Grid></Page>
4、演示 UseLayoutRounding 的应用
Controls/UI/UseLayoutRounding.xaml
<Page x:Class="XamlDemo.Controls.UI.UseLayoutRounding" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:XamlDemo.Controls.UI" 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="120 0 0 0"> <!-- UseLayoutRounding - 是否使用完整像素布局。默认值为 true 举例： 1、如果设置了Margin="1.6"（非完整像素） 2、那么UseLayoutRounding="true"时，则容器的外边距不相等；UseLayoutRounding="false"时，则容器的外边距相等 --> <Grid Width="200" Height="200" HorizontalAlignment="Left" UseLayoutRounding="True"> <Border BorderBrush="#FF884909" Background="#FFFBECA3" BorderThickness="1"></Border> <Border BorderBrush="#FF884909" Background="#FFFBECA3" BorderThickness="1" Margin="1.6"></Border> </Grid> <Grid Width="200" Height="200" Margin="0 10 0 0" HorizontalAlignment="Left" UseLayoutRounding="False"> <Border BorderBrush="#FF884909" Background="#FFFBECA3" BorderThickness="1"></Border> <Border BorderBrush="#FF884909" Background="#FFFBECA3" BorderThickness="1" Margin="1.6"></Border> </Grid> </StackPanel> </Grid></Page>
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