WPF 2D 차트에 대한 사용자 정의 좌표

<Window x:Class="WpfApplication5.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="2D 차트에 대한 사용자 정의 좌표" Height="420"  Width="360">
<Viewbox Stretch="Uniform">
<StackPanel Height="420" Width="360">
	<Canvas x:Name="plotCanvas" ClipToBounds="True" 
                    Width="300" Height="250" 
                    Margin="30,30,30,30">
		<Rectangle x:Name="plotArea"  
				   Width="300" Height="250"  
				   Stroke="Black"  
				   StrokeThickness="1"/>
	</Canvas>
	<Grid Width="340" Height="100" 
              HorizontalAlignment="Left" 
              VerticalAlignment="Top">
	<Grid.ColumnDefinitions>
		<ColumnDefinition Width="60" />
		<ColumnDefinition Width="110" />
		<ColumnDefinition Width="60"/>
		<ColumnDefinition Width="110" />
	</Grid.ColumnDefinitions>
	<Grid.RowDefinitions>
		<RowDefinition Height="Auto" />
		<RowDefinition Height="Auto" />
		<RowDefinition Height="Auto" />
	</Grid.RowDefinitions>
	<TextBlock Grid.Column="0" Grid.Row="0" Margin="25,5,10,5">XMin</TextBlock>
	<TextBox Name="tbXMin" Grid.Column="1" Grid.Row="0"   Text="0" />
	<TextBlock Grid.Column="2" Grid.Row="0" Margin="25,5,10,5">XMax</TextBlock>
	<TextBox Name="tbXMax" Grid.Column="3" Grid.Row="0" >10</TextBox>
	<TextBlock Grid.Column="0" Grid.Row="1" Margin="25,5,10,5">YMin</TextBlock>
	<TextBox Name="tbYMin" Grid.Column="1" Grid.Row="1"   >0</TextBox>
	<TextBlock Grid.Column="2" Grid.Row="1" Margin="25,5,10,5">YMax</TextBlock>
	<TextBox Name="tbYMax" Grid.Column="3" Grid.Row="1">10</TextBox>
	<Button Click="btnApply_Click"  
                        Margin="40,20,20,0" 
                        Height="25" Grid.ColumnSpan="2" 
                        Grid.Column="0" Grid.Row="2">Apply</Button>
	<Button Click="btnClose_Click" 
                        Margin="40,20,20,0"  
                        Height="25" Grid.ColumnSpan="2" 
                        Grid.Column="2" Grid.Row="2">Close</Button>
	</Grid>
</StackPanel>
</Viewbox>
</Window>

public partial class MainWindow : Window
    {
        private double xMin = 0.0;
        private double xMax = 10.0;
        private double yMin = 0.0;
        private double yMax = 10.0;
        private Line line1;
        private Polyline polyline1;
 
 
        public MainWindow()
        {
            InitializeComponent();
            AddGraphics();
        }
 
        private void AddGraphics()
        {
            line1 = new Line();
            line1.X1 = XNormalize(2.0);
            line1.Y1 = YNormalize(4.0);
            line1.X2 = XNormalize(8.0);
            line1.Y2 = YNormalize(10.0);
            line1.Stroke = Brushes.Blue;
            line1.StrokeThickness = 2;
            //line1.StrokeDashArray = new DoubleCollection(){};
            plotCanvas.Children.Add(line1);
 
            polyline1 = new Polyline();
            polyline1.Points.Add(new Point(XNormalize(8),
                YNormalize(8)));
            polyline1.Points.Add(new Point(XNormalize(6),
                YNormalize(6)));
            polyline1.Points.Add(new Point(XNormalize(6),
                YNormalize(4)));
            polyline1.Points.Add(new Point(XNormalize(4),
                YNormalize(4)));
            polyline1.Points.Add(new Point(XNormalize(4),
                YNormalize(6)));
            polyline1.Points.Add(new Point(XNormalize(6),
                YNormalize(6)));
            polyline1.Stroke = Brushes.Red;
            polyline1.StrokeThickness = 5;
            plotCanvas.Children.Add(polyline1);
        }
 
        private double XNormalize(double x)
        {
            double result = (x - xMin) *
                   plotCanvas.Width / (xMax - xMin);
            return result;
        }
 
        private double YNormalize(double y)
        {
            double result = plotCanvas.Height - (y - yMin) *
                plotCanvas.Height / (yMax - yMin);
            return result;
        }
 
        private void btnApply_Click(object sender, RoutedEventArgs e)
        {
            xMin = Convert.ToDouble(tbXMin.Text);
            xMax = Convert.ToDouble(tbXMax.Text);
            yMin = Convert.ToDouble(tbXMin.Text);
            yMax = Convert.ToDouble(tbYMax.Text);
            plotCanvas.Children.Remove(line1);
            plotCanvas.Children.Remove(polyline1);
            AddGraphics();
        }
 
        private void btnClose_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }
    }

reference : Practical WPF Graphics Programming