背水一战 Windows 10 (13) - 绘图: Stroke, Brush
作者：webabcd
介绍
背水一战 Windows 10 之 绘图
- Stroke - 笔划
- Brush - 画笔
示例
1、演示“Stroke”相关知识点
Drawing/Stroke.xaml
<Page x:Class="Windows10.Drawing.Stroke" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:Windows10.Drawing" 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"> <!-- Stroke - 笔划（注：Stroke 属性是 Brush 类型） StrokeThickness - Stroke 的宽度 --> <!-- StrokeDashArray - 虚线实体和虚线间隙的值的集合 以本例为例：第1条实线长度2，第1条虚线长度4，第2条实线长度6，第2条虚线长度2，第3条实线长度4，第3条虚线长度6 长度为 StrokeDashArray 乘以 StrokeThickness/2 --> <Line X1="0" Y1="0" X2="1000" Y2="0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2 4 6" /> <!-- StrokeDashCap - 虚线两端（线帽）的类型（System.Windows.Media.PenLineCap 枚举） PenLineCap.Flat - 无。默认值 PenLineCap.Round - 直径等于 StrokeThickness PenLineCap.Square - 高度等于 StrokeThickness 并且 宽度等于 StrokeThickness/2 PenLineCap.Triangle - 底边长等于 StrokeThickness 的等腰直角三角形 --> <Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Flat" /> <Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Round" /> <Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Square" /> <Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeDashCap="Triangle" /> <!-- StrokeStartLineCap - 虚线起始端（线帽）的类型（System.Windows.Media.PenLineCap 枚举） StrokeEndLineCap - 虚线终结端（线帽）的类型（System.Windows.Media.PenLineCap 枚举） --> <Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeStartLineCap="Triangle" StrokeEndLineCap="Round" /> <!-- StrokeDashOffset - 虚线的起始点的偏移位置 以下举例：画一条以虚线间隙为起始的虚线 --> <Line X1="0" Y1="0" X2="1000" Y2="0" Margin="0 30 0 0" Stroke="Orange" StrokeThickness="20" StrokeDashArray="2" StrokeDashOffset="10" /> <!-- StrokeLineJoin - 图形连接点处的连接类型（System.Windows.Media.PenLineJoin 枚举） StrokeLineJoin.Bevel - 线形连接 StrokeLineJoin.Miter - 角形连接。默认值 StrokeLineJoin.Round - 弧形连接 --> <StackPanel Margin="0 30 0 0" Orientation="Horizontal"> <Polyline Points="10,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" HorizontalAlignment="Center" StrokeLineJoin="Bevel" /> <Polyline Points="10,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" HorizontalAlignment="Center" StrokeLineJoin="Miter" /> <Polyline Points="10,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" HorizontalAlignment="Center" StrokeLineJoin="Round" /> </StackPanel> <!-- StrokeMiterLimit - 斜接长度（蓝色线部分）与 StrokeThickness/2 的比值。默认值 10，最小值 1 --> <Grid Margin="0 30 0 0" HorizontalAlignment="Left"> <Grid.ColumnDefinitions> <ColumnDefinition Width="120" /> <ColumnDefinition Width="120" /> <ColumnDefinition Width="120" /> </Grid.ColumnDefinitions> <Polyline Grid.Column="0" Points="0,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" StrokeMiterLimit="1" /> <Line Grid.Column="0" X1="50" Y1="10" X2="50" Y2="0" Stroke="Blue" /> <Polyline Grid.Column="0" Points="0,100 50,10 100,100" Stroke="Red" /> <Polyline Grid.Column="1" Points="0,100 50,10 100,100" Stroke="Orange" StrokeThickness="20" StrokeMiterLimit="2.0" /> <Line Grid.Column="1" X1="50" Y1="10" X2="50" Y2="-10" Stroke="Blue" /> <Polyline Grid.Column="1" Points="0,100 50,10 100,100" Stroke="Red" /> </Grid> </StackPanel> </Grid> </Page>
2、演示“Brush”相关知识点
Drawing/Brush.xaml
<Page x:Class="Windows10.Drawing.Brush" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:Windows10.Drawing" 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="Left"> <!-- Windows.UI.Xaml.Media.Brush - 画笔 --> <!-- SolidColorBrush - 单色画笔 Color - 颜色 格式如下： 预定义的Color的名称。如：Red, Green, Blue #RGB。如：#F00 #ARGB（A为Alpha值）。如：#FF00, #F0F0, #F00F #RGB。如：#FF0000, #00FF00, #0000FF #ARGB（A为Alpha值）。如：#FFFF0000, #FF00FF00, #FF0000FF --> <Ellipse Margin="10" Width="200" Height="100" Stroke="Yellow" StrokeThickness="3" HorizontalAlignment="Left"> <Ellipse.Fill> <SolidColorBrush Color="#88FF0000" /> </Ellipse.Fill> </Ellipse> <!-- ImageBrush - 图像画笔 ImageSource - 图片地址 Stretch - 拉伸方式 AlignmentX - 水平方向的对齐方式。Center（默认值）, Left, Right AlignmentY - 垂直方向的对齐方式。Center（默认值）, Top, Bottom --> <Rectangle Width="100" Height="100" Stroke="Red" StrokeThickness="1" HorizontalAlignment="Left" Margin="0 10 0 0"> <Rectangle.Fill> <ImageBrush ImageSource="/Assets/Logo.png" AlignmentX="Right" AlignmentY="Bottom" Stretch="Fill" /> </Rectangle.Fill> </Rectangle> <WebView x:Name="webView" Source="http://webabcd.cnblogs.com" Width="300" Height="100" LoadCompleted="webView_LoadCompleted" HorizontalAlignment="Left" Margin="0 10 0 0" /> <!-- WebView - 浏览器画笔 SourceName - WebView 指向的 http 地址 注：如果需要显示 WebView 的最新结果，需要调用 WebViewBrush.Redraw() 方法 --> <Rectangle Width="300" Height="100" Stroke="Red" HorizontalAlignment="Left" Margin="0 10 0 0"> <Rectangle.Fill> <WebViewBrush x:Name="webViewBrush" SourceName="webView"/> </Rectangle.Fill> </Rectangle> <!-- 演示 LinearGradientBrush 如何使用（注：不支持 RadialGradientBrush） --> <StackPanel Orientation="Horizontal" HorizontalAlignment="Left" Margin="0 10 0 0"> <Grid> <Rectangle Width="200" Height="100" HorizontalAlignment="Left"> <Rectangle.Fill> <!-- LinearGradientBrush - 线性渐变画笔 StartPoint - 线性渐变的起点。默认渐变方向为对角线方向，默认值为左上角0,0 EndPoint - 线性渐变的终点。默认渐变方向为对角线方向，默认值为右下角1,1 GradientStop - 渐变中，过渡点的设置 Color - 过渡点的颜色 Offset - 过渡点的位置。相对于渐变线的比值。最小值0.0（默认值），最大值1.0 ColorInterpolationMode - 插入渐变颜色的方式（System.Windows.Media.ColorInterpolationMode 枚举） ScRgbLinearInterpolation - scRGB SRgbLinearInterpolation - sRGB。默认值 --> <LinearGradientBrush StartPoint="0,0" EndPoint="1,1" ColorInterpolationMode="SRgbLinearInterpolation"> <GradientStop Color="Red" Offset="0.0" /> <GradientStop Color="Green" Offset="0.25" /> <GradientStop Color="Blue" Offset="0.75" /> <GradientStop Color="Yellow" Offset="1.0" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> <Line X1="0" Y1="0" X2="200" Y2="100" Stroke="Black" HorizontalAlignment="Left" /> </Grid> <Grid Margin="10 0 0 0"> <Rectangle Width="200" Height="100" HorizontalAlignment="Left"> <Rectangle.Fill> <!-- MappingMode - 指定线性渐变的起点（StartPoint）和终点（EndPoint）相对于输出区域是相对的还是绝对的（System.Windows.Media.BrushMappingMode 枚举） MappingMode.RelativeToBoundingBox - 相对坐标。默认值 MappingMode.Absolute - 绝对坐标 --> <LinearGradientBrush StartPoint="0,0" EndPoint="200,100" MappingMode="Absolute"> <GradientStop Color="Red" Offset="0.0" /> <GradientStop Color="Green" Offset="0.25" /> <GradientStop Color="Blue" Offset="0.75" /> <GradientStop Color="Yellow" Offset="1.0" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> <Line X1="0" Y1="0" X2="200" Y2="100" Stroke="Black" HorizontalAlignment="Left" /> </Grid> <Grid Margin="10 0 0 0"> <Rectangle Width="200" Height="100" HorizontalAlignment="Left"> <Rectangle.Fill> <!-- SpreadMethod - 线性渐变线（黑色线）之外， 输出区域之内的渐变方式（System.Windows.Media.GradientSpreadMethod枚举） GradientSpreadMethod.Pad - 用线性渐变线末端的颜色值填充剩余空间。默认值 --> <LinearGradientBrush StartPoint="0.4,0.5" EndPoint="0.6,0.5" SpreadMethod="Pad"> <GradientStop Color="Red" Offset="0.0" /> <GradientStop Color="Green" Offset="1.0" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> <Line X1="80" Y1="50" X2="120" Y2="50" Stroke="Black" HorizontalAlignment="Left" /> </Grid> <Grid Margin="10 0 0 0"> <Rectangle Width="200" Height="100" HorizontalAlignment="Left"> <Rectangle.Fill> <!-- SpreadMethod - 线性渐变线（黑色线）之外， 输出区域之内的渐变方式（System.Windows.Media.GradientSpreadMethod枚举） GradientSpreadMethod.Reflect - 相邻填充区域，以 相反方向 重复渐变，直至填充满整个剩余空间 --> <LinearGradientBrush StartPoint="0.4,0.5" EndPoint="0.6,0.5" SpreadMethod="Reflect"> <GradientStop Color="Red" Offset="0.0" /> <GradientStop Color="Green" Offset="1.0" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> <Line X1="80" Y1="50" X2="120" Y2="50" Stroke="Black" HorizontalAlignment="Left" /> </Grid> <Grid Margin="10 0 0 0"> <Rectangle Width="200" Height="100" HorizontalAlignment="Left"> <Rectangle.Fill> <!-- SpreadMethod - 线性渐变线（黑色线）之外， 输出区域之内的渐变方式（System.Windows.Media.GradientSpreadMethod枚举） GradientSpreadMethod.Repeat - 相邻填充区域，以 相同方向 重复渐变，直至填充满整个剩余空间 --> <LinearGradientBrush StartPoint="0.4,0.5" EndPoint="0.6,0.5" SpreadMethod="Repeat"> <GradientStop Color="Red" Offset="0.0" /> <GradientStop Color="Green" Offset="1.0" /> </LinearGradientBrush> </Rectangle.Fill> </Rectangle> <Line X1="80" Y1="50" X2="120" Y2="50" Stroke="Black" HorizontalAlignment="Left" /> </Grid> </StackPanel> </StackPanel> </Grid> </Page>
Drawing/Brush.xaml.cs
using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Navigation; namespace Windows10.Drawing { public sealed partial class Brush : Page { public Brush() { this.InitializeComponent(); } private void webView_LoadCompleted(object sender, NavigationEventArgs e) { // WebView 加载完毕后重绘 WebViewBrush webViewBrush.Redraw(); } } }
OK
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