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在WPF中画线和圆

visual-studio-2010 wpf .net

serhio · 技术社区 · 15 年前

o-School----o-Church-------o-Police .

在VS2010中,我认为WPF(据我所知,它使用矢量化图形)应该是开始绘制的好画布。

它是可能的,复杂的,你有什么建议一个WPF初学者。

编辑: 仪表板样式 对于线(点划线,点划线?

4 回复 | 直到 15 年前

ASanch 15 年前

这里有一些东西可以帮助你开始。它有一个包含一些形状的画布和一个允许您控制缩放的滑块控件。您可以根据需要在画布中添加其他元素。

<DockPanel>
    <Slider x:Name="slider" Minimum=".1" Maximum="10" Value="1" DockPanel.Dock="Top"/>
    <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
        <Border BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Center" VerticalAlignment="Center">
            <Canvas Width="300" Height="300">
                <Canvas.LayoutTransform>
                    <ScaleTransform ScaleX="{Binding ElementName=slider, Path=Value}"
                                ScaleY="{Binding ElementName=slider, Path=Value}"/>
                </Canvas.LayoutTransform>

                <Ellipse Canvas.Left="10" Canvas.Top="10" Width="20" Height="20"
                        Stroke="Black" StrokeThickness="1" Fill="Red"/>
                <Line Canvas.Left="20" Canvas.Top="30" X1="0" X2="0" Y1="0" Y2="50" 
                    Stroke="Black" StrokeThickness="1"/>
                <Ellipse Canvas.Left="10" Canvas.Top="80" Width="20" Height="20"
                        Stroke="Black" StrokeThickness="1" Fill="Yellow"/>
            </Canvas>
        </Border>
    </ScrollViewer>
</DockPanel>

编辑 :

<Line Canvas.Left="100" Canvas.Top="100" Stroke="Black"
                          X1="0" X2="100" Y1="0" Y2="0"
                          StrokeThickness="3" StrokeDashArray="2,2"/>

给出以下信息(即,由一系列长度为2的线段组成的直线,后跟长度为2的间隙):

alt text

将StrokeDashArray设置为

StrokeDashArray="5,1,1,1"

给你点划线图案。

alt text

Kris 15 年前

您有几个使用Canvas和showing Zoom的例子,但是如果您只需要一行元素,您可以使用StackPanel并设置VerticalAlignment=“Center”,那么您不需要计算位置,只需要计算行的大小。

alt text

    <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
    <StackPanel.Resources>
        <Style TargetType="Ellipse">
            <Setter Property="Width" Value="20" />
            <Setter Property="Height" Value="20" />
            <Setter Property="Stroke" Value="Orange" />
            <Setter Property="StrokeThickness" Value="3" />
        </Style>
        <Style TargetType="Line">
            <Setter Property="Stroke" Value="DodgerBlue" />
            <Setter Property="StrokeDashArray" Value="5,1,1,1,1,1" />
            <Setter Property="StrokeThickness" Value="2" />
        </Style>
        <Style TargetType="TextBlock">
            <Setter Property="Foreground" Value="White" />
            <Setter Property="FontWeight" Value="Bold" />
            <Setter Property="Padding" Value="4" />
        </Style>
        <Style TargetType="Border" x:Key="Label">
            <Setter Property="Background" Value="LimeGreen" />
            <Setter Property="CornerRadius" Value="10" />
        </Style>
    </StackPanel.Resources>
    <Ellipse />
    <Border VerticalAlignment="Center">
        <Line X2="50" />
    </Border>
    <Border Style="{StaticResource Label}">
        <TextBlock Text="Home" />
    </Border>
    <Border VerticalAlignment="Center">
        <Line X2="50" />
    </Border>            
    <Ellipse />
    <Border VerticalAlignment="Center">
        <Line X2="50" />
    </Border>
    <Border Style="{StaticResource Label}">
        <TextBlock Text="Church" />
    </Border>
    <Border VerticalAlignment="Center">
        <Line X2="50" />
    </Border>            
    <Ellipse />
    <Border VerticalAlignment="Center">
        <Line X2="20" />
    </Border>
    <Border Style="{StaticResource Label}">
        <TextBlock Text="Police" />
    </Border>
</StackPanel>

BlueCode 15 年前

在WPF中很容易画出简单的形状。你可以在公园里找到它们 Shapes

举个例子:

<Canvas>
    <Ellipse Canvas.Top="0" Canvas.Left="0" Width="256" Height="256" />
    <Line Canvas.Top="0" Canvas.Left="256" X1="0" Y1="0" X2="128" Y2=128" >
</Canvas>

Nathan Kovner 15 年前

这应该不复杂,我会把一个画布放在一个Viewbox中保持简单。增大画布的宽度和高度以缩小,减小它们以放大。

  <DockPanel>
    <Viewbox DockPanel.Dock="Top" Width="100" Height="100" >
      <Canvas Width="{Binding Path=Value, ElementName=TheZoomSlider}" Height="{Binding Path=Value, ElementName=TheZoomSlider}">
        <Ellipse Stroke="Black" Canvas.Top="40" Canvas.Left="20" Width="20" Height="20" />
        <Ellipse Stroke="Black" Canvas.Top="40" Canvas.Left="50" Width="20" Height="20" />
        <Ellipse Stroke="Black" Canvas.Top="40" Canvas.Left="80" Width="20" Height="20" />
      </Canvas>
    </Viewbox>
    <Slider Margin="0,400,0,0" HorizontalAlignment="Center" Orientation="Vertical" DockPanel.Dock="Bottom" Name="TheZoomSlider" Minimum="20" Maximum="800" Value="40" />
    </DockPanel>