WPF:WPF绘制曲线
简述
WPF开发中经常需要绘制曲线、直方图等。虽然WPF自带了绘制图形等基础功能,但做程序一个很基础的原则就是避免重复造轮子。在GitHub上找到了微软官方的WPF绘制曲线开源库:InteractiveDataDisplay.WPF。
我使用的IDE是VS201x,建议使用NuGet安装--引用InteractiveDataDisplay.WPF。如何使用NuGet,请自行百度。
以下是我实验的该开源库绘制的WPF曲线程序。
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代码
MainWindow.xaml
MainWindow.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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.Navigation;
using System.Windows.Shapes;
using System.Threading;
using InteractiveDataDisplay.WPF;
namespace WpfDrawPlot
{
///
/// MainWindow.xaml 的交互逻辑
///
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
//线程中更新曲线
Thread threadTmp = new Thread( UpdateChart );
threadTmp.Start();
}
private void UpdateChart()
{
int nPointNum = 100;
Random randm = new Random();
double[] dArray = new double[ nPointNum ];
double[] dX = new double[ nPointNum ];
double[] dY = new double[ nPointNum ];
double dRandomtTmp = 0;
while( true )
{
Thread.Sleep( 1000 );//每秒刷新一次
for ( int n = 0; n < dArray.Length; n++ )
{
dRandomtTmp = randm.NextDouble();
dArray[ n ] = ( dRandomtTmp < 0.5 ) ? -dRandomtTmp * dArray.Length : dRandomtTmp * dArray.Length;
}
for ( int n = 0; n < dX.Length; n++ )
{
dX[ n ] = n;
dY[ n ] = randm.Next( dX.Length );
}
//更新UI
Dispatcher.Invoke( new Action( delegate
{
this.BarChart.PlotBars( dArray );
this.LineChart.Plot( dX, dY );
} ) );
}
}
}
}
效果
文章标题:WPF:WPF绘制曲线
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