OxyPlot在WinForm中的应用

版权声明：版权所有，需要请联系作者 https://blog.csdn.net/weixin_42930928/article/details/81706540

1、简介（从GitHub上复制）

Getting started

1. Use the NuGet package manager to add a reference to OxyPlot (see details below if you want to use pre-release packages)
2. Add a PlotView to your user interface
3. Create a PlotModel in your code
4. Bind the PlotModel to the Model property of your PlotView

Examples

You can find examples in the /Source/Examples folder in the code repository.

NuGet packages

The latest pre-release packages are pushed by AppVeyor CI to myget.org To install these packages, set the myget.org package source https://www.myget.org/F/oxyplot and remember the "-pre" flag.

The stable release packages will be pushed to nuget.org. Note that we have currently have a lot of old (v2015.*) and pre-release packages on this feed, this will be cleaned up as soon as we release v1.0.

Package	Targets	Dependencies
OxyPlot.Core	.NET Standard 1.0
OxyPlot.Wpf	.NET 4.5.2
OxyPlot.WindowsForms	.NET 4.5.2
OxyPlot.Windows	Universal Windows 10.0
OxyPlot.GtkSharp	.NET 4.5.2	GTK# 2
OxyPlot.GtkSharp3	.NET 4.5.2	GTK# 3
OxyPlot.Xamarin.Android	MonoAndroid
OxyPlot.Xamarin.iOS	MonoTouch and iOS10
OxyPlot.Xamarin.Mac	Mac20
OxyPlot.Xamarin.Forms	MonoTouch, iOS10, MonoAndroid, WP8
OxyPlot.Xwt	.NET 4.5.2
OxyPlot.SharpDX.Wpf	.NET 4.5.2
OxyPlot.Avalonia	.NET 4.5.2
OxyPlot.OpenXML	.NET 4.5.2
OxyPlot.Pdf	.NET 4.5.2	PdfSharp
OxyPlot.Contrib	.NET Standard 1.0
OxyPlot.ExampleLibrary	.NET Standard 1.0

2、如何使用

在GitHub上面有一些简单的示例可以参考。但是在实际应用中并非如此简单，本示例主要介绍如何在winform中完成一个能够实时绘制动态曲线的目标

2.1、创建项目

创建项目名为OxyPlotWinform的winform工程，在项目的nuget搜索添加OxyPlot.WindowsForms库。

2.2、添加PlotView

在Form1中添加一个容器panel，设置为在父容器中停靠，在panel1中添加一个plotview，设置Dock为Fill。

2.3 添加代码

添加变量：

private DateTimeAxis _dateAxis;//X轴
private LinearAxis _valueAxis;//Y轴
        
private PlotModel _myPlotModel;
private Random rand = new Random();//用来生成随机数

添加代码：

        private void Form1_Load(object sender, EventArgs e)
        {
            //定义model
            _myPlotModel = new PlotModel()
            {
                Title = "Temp & Humi",
                LegendTitle =  "Legend",
                LegendOrientation = LegendOrientation.Horizontal,
                LegendPlacement =  LegendPlacement.Inside,
                LegendPosition =  LegendPosition.TopRight,
                LegendBackground = OxyColor.FromAColor(200,OxyColors.Beige),
                LegendBorder = OxyColors.Black
            };
            //X轴
            _dateAxis = new DateTimeAxis()
            {
                MajorGridlineStyle =  LineStyle.Solid,
                MinorGridlineStyle =  LineStyle.Dot,
                IntervalLength =  80,
                IsZoomEnabled = false,
                IsPanEnabled =  false
            };
            _myPlotModel.Axes.Add(_dateAxis);

            //Y轴
            _valueAxis = new LinearAxis()
            {
                MajorGridlineStyle =  LineStyle.Solid,
                MinorGridlineStyle = LineStyle.Dot,
                IntervalLength = 80,
                Angle = 60,
                IsZoomEnabled = false,
                IsPanEnabled = false,
                Maximum = 100,
                Minimum = -1
            };
            _myPlotModel.Axes.Add(_valueAxis);

            //添加标注线，温度上下限和湿度上下限
            var lineTempMaxAnnotation = new OxyPlot.Annotations.LineAnnotation()
            {
                Type = LineAnnotationType.Horizontal,
                Color = OxyColors.Red,
                LineStyle = LineStyle.Solid,
                Y = 10,
                Text = "Temp MAX:10"
            };
            _myPlotModel.Annotations.Add(lineTempMaxAnnotation);

            var lineTempMinAnnotation = new LineAnnotation()
            {
                Type = LineAnnotationType.Horizontal,
                Y = 30,
                Text = "Temp Min:30",
                Color = OxyColors.Red,
                LineStyle = LineStyle.Solid
            };
            _myPlotModel.Annotations.Add(lineTempMinAnnotation);

            var lineHumiMaxAnnotation = new OxyPlot.Annotations.LineAnnotation()
            {
                Type = LineAnnotationType.Horizontal,
                Color = OxyColors.Red,
                LineStyle = LineStyle.Solid,
                //lineMaxAnnotation.MaximumX = 0.8;
                Y = 75,
                Text = "Humi MAX:75"
            };
            _myPlotModel.Annotations.Add(lineHumiMaxAnnotation);

            var lineHumiMinAnnotation = new LineAnnotation()
            {
                Type = LineAnnotationType.Horizontal,
                Y = 35,
                Text = "Humi Min:35",
                Color = OxyColors.Red,
                LineStyle = LineStyle.Solid
            };
            _myPlotModel.Annotations.Add(lineHumiMinAnnotation);

            //添加两条曲线
            var series = new LineSeries()
            {
                Color = OxyColors.Green,
                StrokeThickness = 2,
                MarkerSize = 3,
                MarkerStroke = OxyColors.DarkGreen,
                MarkerType = MarkerType.Diamond,
                Title = "Temp",
                Smooth = true
            };
            _myPlotModel.Series.Add(series);
            series = new LineSeries()
            {
                Color = OxyColors.Blue,
                StrokeThickness = 2,
                MarkerSize = 3,
                MarkerStroke = OxyColors.BlueViolet,
                MarkerType = MarkerType.Star,
                Title = "Humi",
                Smooth = true
            };
            _myPlotModel.Series.Add(series);


            plotView1.Model = _myPlotModel;

            Task.Factory.StartNew(() =>
            {
                while (true)
                {

                    var date = DateTime.Now;
                    _myPlotModel.Axes[0].Maximum = DateTimeAxis.ToDouble(date.AddSeconds(1));

                    var lineSer = plotView1.Model.Series[0] as LineSeries;
                    lineSer.Points.Add(new DataPoint(DateTimeAxis.ToDouble(date), rand.Next(100, 300)/10.0));
                    if (lineSer.Points.Count > 100)
                    {
                        lineSer.Points.RemoveAt(0);
                    }

                    lineSer = plotView1.Model.Series[1] as LineSeries;
                    lineSer.Points.Add(new DataPoint(DateTimeAxis.ToDouble(date), rand.Next(350, 750)/10.0));
                    if (lineSer.Points.Count > 100)
                    {
                        lineSer.Points.RemoveAt(0);
                    }

                    _myPlotModel.InvalidatePlot(true);

                    Thread.Sleep(1000);
                }
            });
        }

2.4、程序运行

项目地址：

1、https://gitee.com/sesametech-group/OxyPlotWinform

2、https://github.com/mzy666888/OxyPlotWinform

参考文献：

1、https://blog.csdn.net/mytinaonly/article/details/79926290

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