WPF C# 自定義座標軸（X軸，Y軸）
阿新 • • 發佈：2020-08-18
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="30"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Canvas x:Name="canvas" Background="Gray"/>
<Canvas
x:Name="Canvas_Container" Grid.Column="
/// <summary>/// XYUserControl.xaml 的互動邏輯
/// </summary>
public partial class XYUserControl : UserControl
{
public static List<double> XFloagPotin = new List<double>(); public XYUserControl()
{
InitializeComponent();
this.Loaded += XYUserControl_Loaded;
} private void XYUserControl_SizeChanged(object sender, SizeChangedEventArgs e)
{
Canvas_Container.Children.Clear();
canvas.Children.Clear();
DrowXPolyLine();
DrowYPolyLine();
CreateTickText();
} private void XYUserControl_Loaded(object sender, RoutedEventArgs e)
DrowXPolyLine();
DrowYPolyLine();
CreateTickText();
} private void DrowXPolyLine()
{
double tickWidth = this.Canvas_Container.ActualWidth / 20;
for (int i = 0; i < 20; i++)
{
Polyline XPolyline = new Polyline();
XPolyline.Stroke = new SolidColorBrush(Colors.Gray);
XPolyline.StrokeThickness = 1;
XPolyline.Points.Add(new Point(i * tickWidth, 0));
XPolyline.Points.Add(new Point(i * tickWidth, this.Canvas_Container.ActualHeight));
this.Canvas_Container.Children.Add(XPolyline);
}
}
private void DrowYPolyLine()
{
double tickHeigt = this.Canvas_Container.ActualHeight / 20;
for (int i = 0; i < 20; i++)
{
Polyline YPolyline = new Polyline();
YPolyline.Stroke = new SolidColorBrush(Colors.Gray);
YPolyline.StrokeThickness = 1;
YPolyline.Points.Add(new Point(0, i * tickHeigt));
YPolyline.Points.Add(new Point(this.Canvas_Container.ActualWidth, i * tickHeigt));
this.Canvas_Container.Children.Add(YPolyline);
}
}
private void CreateTickText()
{
//int TickLength = Convert.ToInt32(this.canvas.ActualHeight / 17);
double TickLength = this.canvas.ActualHeight / 17;
for (int i = 0; i < 17; i++)
{
Label label = new Label();
label.Content = (i * 20).ToString();
label.FontSize = 10;
label.HorizontalContentAlignment = HorizontalAlignment.Right;
label.VerticalContentAlignment = VerticalAlignment.Bottom;
label.Foreground = new SolidColorBrush(Colors.White);
label.SetValue(Canvas.BottomProperty, i * TickLength - 10);
this.canvas.Children.Add(label); }
}
}