wpf 在wpf中绘制垂直线
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Draw vertical lines in wpf
提问by santosh singh
I have written following code for generating lines on canvas
我编写了以下用于在画布上生成线条的代码
XAML
XAML
<Canvas HorizontalAlignment="Left"
x:Name="canvas1" Height="219"
Margin="10,10,0,0" Grid.Row="1"
VerticalAlignment="Top" Width="365"/>
C#
C＃
private void Draw()
{
canvas1.Children.Clear();
for (int i = 0; i < data.Length; i++)
{
data[i] = i;
lines[i] = new Line()
{
X1 = leftMargin,
Y1 = i * scale,
X2 = i * scale,
Y2 = i * scale,
StrokeThickness = 2,
Stroke = new SolidColorBrush(Colors.Black)
};
canvas1.Children.Add(lines[i]);
}
}
But I want to draw lines as below.How I can rotatle the canvas to achieve the desired output
但我想画线如下。如何旋转画布以实现所需的输出
采纳答案by paparazzo
x = 0 and y = 0 is upper left corner (not lower left) so y is like up side down
x = 0 和 y = 0 是左上角（不是左下角）所以 y 就像上下颠倒
private void Draw()
{
Line[] lines = new Line[100];
int scale = 3;
canvas1.Children.Clear();
int yStart = 290;
for (int i = 0; i < lines.Length; i++)
{
//data[i] = i;
lines[i] = new Line()
{
X1 = i * scale,
Y1 = yStart,
X2 = i * scale,
Y2 = 300 - (i * scale),
StrokeThickness = 1,
Stroke = new SolidColorBrush(Colors.Black)
};
canvas1.Children.Add(lines[i]);
}
}
回答by mlemay
<Canvas.RenderTransform>
<RotateTransform CenterX="110" CenterY="183" Angle="270" />
</Canvas.RenderTransform>
or by code:
或通过代码：
Canvas.RenderTransform = new RotateTransform(270, 109.5, 182.5);
Something like this?
像这样的东西？
回答by Luke Marlin
If you want to rotate the canvas, you can simply apply a transform on it:
如果要旋转画布，只需对其应用变换即可：
<Canvas.RenderTransform>
<RotateTransform CenterX="110" CenterY="183" Angle="270" />
</Canvas.RenderTransform>
If you want to do as John Willemse suggested change your code to this :
如果您想按照 John Willemse 的建议将代码更改为：
X1 = i * scale,
Y1 = bottomMargin,
X2 = i * scale,
Y2 = i * scale,
