之前一直用GDI绘图，后面公司要求使用WPF，网上WPF资料太少（可能自己没找到吧），自己写了个测试用，可以拖动。

 

前端代码

<Window x:Class="Wpf绘图.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Window1" Height="600" Width="800" Loaded="Window_Loaded_1">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="30"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <ToolBar Grid.Row="0">
            <Label Name="moushPonit" Foreground="Red">11</Label>
        </ToolBar>
        <Canvas Grid.Row="1" Name="MainCanvas" Background="#FFBBBCBF" 
                MouseMove="MainCanvas_MouseMove" 
                MouseLeftButtonDown="MainCanvas_MouseLeftButtonDown" MouseLeftButtonUp="MainCanvas_MouseLeftButtonUp" SizeChanged="MainCanvas_SizeChanged" ClipToBounds="True">
            <Canvas.RenderTransform>
                <TransformGroup>
                    <ScaleTransform x:Name="sfr" />
                    <TranslateTransform x:Name="tlt" />
                </TransformGroup>
            </Canvas.RenderTransform>
        </Canvas>
    </Grid>
</Window>

　　

后台代码

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace Wpf绘图
{
    /// <summary>
    /// Window1.xaml 的交互逻辑
    /// </summary>
    public partial class Window1 : Window
    {
        /// <summary>
        /// 画板宽度
        /// </summary>
        double BoardWidth { get; set; }
        /// <summary>
        /// 画板高度
        /// </summary>
        double BoardHeight { get; set; }
        /// <summary>
        /// 垂直（纵向）边距（画图区域距离左右两边长度）
        /// </summary>
        double VerticalMargin { get; set; }
        /// <summary>
        /// 平行（横向）边距（画图区域距离左右两边长度）
        /// </summary>
        double HorizontalMargin { get; set; }
        /// <summary>
        /// 水平刻度间距像素
        /// </summary>
        double horizontalBetween { get; set; }
        /// <summary>
        /// 垂直刻度间距像素
        /// </summary>
        double verticalBetween { get; set; }

        /// <summary>
        ///     x轴最大值
        /// </summary>
        public double MaxX { get; set; }

        /// <summary>
        ///     y轴最大值
        /// </summary>
        public double MaxY { get; set; }

        /// <summary>
        ///     x轴最小值
        /// </summary>
        public double MinX { get; set; }

        /// <summary>
        ///     y轴最小值
        /// </summary>
        public double MinY { get; set; }

        /// <summary>
        /// 图表区域宽度
        /// </summary>
        double ChartWidth;
        /// <summary>
        /// 图表区域高度
        /// </summary>
        double CharHeight;
        /// <summary>
        /// 画图区域起点
        /// </summary>
        Point StartPostion;
        /// <summary>
        /// 画图区域终点
        /// </summary>
        Point EndPostion;
        /// <sum