.Net 开源控件 NPlot使用小结

来源：互联网发布：linux system 函数编辑：程序博客网时间：2024/06/06 01:42

简介

NPlot是一款非常难得的.Net平台下的图表控件，能做各种曲线图，柱状图，饼图，散点图，股票图等，

而且它免费又开源，使用起来也非常符合程序员的习惯。授权方式为BSD许可证。

下载链接：http://nchc.dl.sourceforge.net/project/nplot/nplot/0.9.10.0/nplot-0.9.10.0.zip

一.转换及编译

这个版本是基于framework1.1的vs2005的工程，使用vs2008或者2010直接转换都提示失败。

在vs2010下的转换方式：

在编译，还有错误，提示重复的XX特性，在VS2010新建一个类库项目，

删除自动创建的cs文件Class1.cs

将源码src文件夹的所有文件复制到该项目的文件目录下，在项目中添加这些文件

试着编译一下，有错误

右击引用，选择添加引用

选择.NET选择夹，添加Systm.Drawing , System.Windws.Form , System.Web 及 System.Design。

进入项目文件夹，把AssemblyInfo.cs文件移动到Properties文件夹内，在项目内删除AssemblyInfo.cs

继续编译，还有错误，打开AssemblyInfo这个文件，注释掉最后一行，编译成功。

在bin/Release看到发行版本的NPlot.dl

二. 添加与使用

将NPlot添加到工具箱托盘中。

添加方式为：在工具箱上单击右键，选择“选择项”，会出现“选择工具箱项”对话框，在“.Net Frameworks组件”属性页，选择浏览，找到NPlot.dll添加到工具箱项。这时工具箱中会出现NPlot控件。在设计应用程序界面时，可以将其拖入应用程序界面，系统会在代码中自动创建一个PlotSurface2D对象。
手动引入空间：using NPlot。

NPlot的命名空间包括NPlot,NPlot.Bitmap,NPlot.Web,NPlot.Web.Design,NPlot.Windows等，其中最核心的，管理各种图表的类都属于NPlot命名空间，NPlot.Bitmap针对位图的管理，NPlot.Web,NPlot.Web.Design和NPlot.Windows则可视为NPlot图表在Web Form和Windows Form上的容器(PlotSurface
2D)。这些容器可以拖到Form上，也可以位于其他容器之中。

PlotSurface2D对象是NPlot图表的容器，所有的图表图形，坐标，标题（都继承IDrawable接口）等各种信息都可以被加入PlotSurface2D。PlotSurface2D拥有一个非常重要的方法：Add。各种图表图形，坐标，标题都可以通过Add加入PlotSurface2D对象。

示例代码：

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using NPlot;namespace WindowsForms{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        public void plotline()        {            // --- Plotting ---            plot.Clear();   //对象名称为plot            // --- Grid Code ---            Grid mygrid = new Grid();            mygrid.HorizontalGridType = Grid.GridType.None;            mygrid.VerticalGridType = Grid.GridType.Fine;            plot.Add(mygrid);            plot.Title = "Test";            StepPlot line = new StepPlot();            line.Pen = new Pen(Color.Red, 1);            line.OrdinateData = new int[] { 0, 1, 0, 1, 1, 0 };            line.HideVerticalSegments = false;            plot.Add(line);            plot.Refresh();            return;        }        //显示按钮        private void button1_Click(object sender, EventArgs e)        {            plotline();        }       //清除按钮        private void button2_Click(object sender, EventArgs e)        {            // --- Plotting ---            plot.Clear();            plot.Refresh();        }    }   }

三. 显示示例代码

////////对所绘的图进行打印与保存//////////private void print(){    myPlot.Print(true);}private void save(){    saveFileDialog1.Filter = "位图 (*.bmp)|*.bmp|JPEG(*.jpg)|*.jpg;*.jpeg;*,jpe|Gif(*.gif)|*.gif|Tiff(*.tiff)|*.tiff|Png(*.png)|*.png|Exif(*.exif)|*.exif| 所有文件(*.*)|*.*";    if (saveFileDialog1.ShowDialog() == DialogResult.OK)    {       try        {            int h = myPlot.Size.Height;            int w = myPlot.Size.Width;            Bitmap bm = new Bitmap(w, h);            Bitmap bm1 = new Bitmap(w, h);            Rectangle rt = new Rectangle(1, 1, w, h);            saveFileDialog1.RestoreDirectory = true;            saveFileDialog1.CreatePrompt = true;            myPlot.DrawToBitmap(bm, rt);            if (saveFileDialog1.FilterIndex == 1)            {                bm.Save(saveFileDialog1.FileName);            }            if (saveFileDialog1.FilterIndex == 2)            {                bm.Save(saveFileDialog1.FileName, ImageFormat.Jpeg);            }            if (saveFileDialog1.FilterIndex == 3)            {                bm.Save(saveFileDialog1.FileName, ImageFormat.Gif);            }            if (saveFileDialog1.FilterIndex == 4)            {                bm.Save(saveFileDialog1.FileName, ImageFormat.Tiff);            }            if (saveFileDialog1.FilterIndex == 5)            {                bm.Save(saveFileDialog1.FileName, ImageFormat.Png);            }            if (saveFileDialog1.FilterIndex == 6)            {                bm.Save(saveFileDialog1.FileName, ImageFormat.Exif);            }        }        catch (Exception MyEx)        {            MessageBox.Show(MyEx.ToString(), "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);        }    }}///放大缩小private void changeSize(){    this.myPlot.XAxis1.IncreaseRange(0.1);    this.myPlot.YAxis1.IncreaseRange(0.1); //缩小    this.myPlot.XAxis1.IncreaseRange(-0.1);    this.myPlot.YAxis1.IncreaseRange(-0.1); //放大    this.myPlot.Refresh();}/////////各种绘图//////////         private void plot(){    this.myPlot.Clear(    ////////标签//////////    string[] strLabel = new string[leng];    for (int i = 0; i < leng; i++)        strLabel[i] = Convert.ToString(p[i]);    LabelPointPlot labp = new LabelPointPlot();    labp.AbscissaData = X;    labp.OrdinateData = p;    labp.TextData = strLabel;    labp.LabelTextPosition = LabelPointPlot.LabelPositions.Above;    labp.Marker = new Marker(Marker.MarkerType.Square, 8);    labp.Marker.Color = Color.Blue;    myPlot.Add(labp);    myPlot.Refresh();               ////////网格//////////    Grid mygrid = new Grid();    mygrid.HorizontalGridType = Grid.GridType.Fine;    mygrid.VerticalGridType = Grid.GridType.Fine;    this.myPlot.Add(mygrid);    ////////曲线，双坐标轴//////////    ///////水平线//////////    HorizontalLine line = new HorizontalLine(1.2);    line.LengthScale = 0.89f;    this.myPlot.Add(line, -10);    ///////垂直线///////////    VerticalLine line2 = new VerticalLine(1.2);    line2.LengthScale = 0.89f;    this.myPlot.Add(line2);    ///////普通的线///////////    LinePlot lp3 = new LinePlot();    lp3.OrdinateData = yPW;    lp3.AbscissaData = x;    lp3.Pen = new Pen(Color.Orange);    lp3.Pen.Width = 2;    lp3.Label = " 价格";    this.myPlot.Add(lp3);    LinearAxis linx = (LinearAxis)myPlot.XAxis1;    this.myPlot.XAxis1 = linx;    LinearAxis liny = (LinearAxis)myPlot.YAxis1;    liny.Label = "价格";    liny.AxisColor = Color.Orange;    liny.LabelColor = Color.Orange;    liny.TickTextColor = Color.Orange;    this.myPlot.YAxis1 = liny;    LinePlot lp4 = new LinePlot();    lp4.OrdinateData = yUw;    lp4.AbscissaData = x;    lp4.Pen = new Pen(Color.Green);    lp4.Pen.Width = 2;    lp4.Label = "销售量";    this.myPlot.Add(lp4, PlotSurface2D.XAxisPosition.Top, PlotSurface2D.YAxisPosition.Right);    LinearAxis liny2 = (LinearAxis)myPlot.YAxis2;    liny2.WorldMax = 1.2;    liny2.WorldMin = 0;    liny2.Label = "销售量";    liny2.AxisColor = Color.Green;    liny2.LabelColor = Color.Green;    liny2.TickTextColor = Color.Green;    this.myPlot.YAxis2 = liny2;    ///////图例//////////    this.myPlot.Legend = new Legend();    this.myPlot.Legend.AttachTo(PlotSurface2D.XAxisPosition.Top, PlotSurface2D.YAxisPosition.Right);    this.myPlot.Legend.NumberItemsHorizontally = 2;    this.myPlot.Legend.HorizontalEdgePlacement = Legend.Placement.Inside;    this.myPlot.Legend.VerticalEdgePlacement = Legend.Placement.Inside;    this.myPlot.Legend.YOffset = 5;    this.myPlot.Legend.XOffset = -5;    ///////窗体移动//////////    this.myPlot.AddInteraction(new NPlot.Windows.PlotSurface2D.Interactions.HorizontalDrag());    this.myPlot.AddInteraction(new NPlot.Windows.PlotSurface2D.Interactions.VerticalDrag());    this.myPlot.AddInteraction(new NPlot.Windows.PlotSurface2D.Interactions.AxisDrag(true));    //////累加的柱状图////////    HistogramPlot hp3 = new HistogramPlot();    hp3.AbscissaData = x;    hp3.OrdinateData = yCC1;    hp3.BaseWidth = 0.6f;    hp3.RectangleBrush = RectangleBrushes.Vertical.FaintBlueFade;    hp3.Filled = true;    hp3.Label = "一月";    HistogramPlot hp4 = new HistogramPlot();    hp4.AbscissaData = x;    hp4.OrdinateData = yCC2;    hp4.Label = "二月";    hp4.RectangleBrush = RectangleBrushes.Horizontal.FaintGreenFade;    hp4.Filled = true;    hp4.StackedTo(hp3);    this.myPlot.Add(hp3);    this.myPlot.Add(hp4);    //////阶状图////////                      StepPlot sp1 = new StepPlot();    sp1.OrdinateData = yCH1;    sp1.AbscissaData = x;    sp1.Label = "高度";    sp1.Pen.Width = 2;    sp1.Pen.Color = Color.Blue;    this.myPlot.Add(sp1);    /////点状图////////       Marker m = new Marker(Marker.MarkerType.Cross1, 6, new Pen(Color.Blue, 2.0F));    PointPlot pp = new PointPlot(m);    pp.OrdinateData = a;    pp.AbscissaData = new StartStep(-500.0, 10.0);    pp.Label = "Random";    this.myPlot.Add(pp);    /////Image图////////    double[,] map = new double[19, 19];    for (int i = 0; i < 19; ++i)    {        for (int j = 0; j < 19; ++j)        {            map[i, j] = Convert.ToDouble(tokens[i * 19 + j], new                System.Globalization.CultureInfo("en-US"));        }    }    ImagePlot ip = new ImagePlot(map, -9.0f, 1.0f, -9.0f, 1.0f);    ip.Gradient = new LinearGradient(Color.Gold, Color.Black);    this.myPlot.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.None;    this.myPlot.AddInteraction(new NPlot.Windows.PlotSurface2D.Interactions.RubberBandSelection());    this.myPlot.Add(ip);    ///////蜡烛图///////////    int[] opens =  { 1, 2, 1, 2, 1, 3 };    double[] closes = { 2, 2, 2, 1, 2, 1 };    float[] lows =   { 0, 1, 1, 1, 0, 0 };    System.Int64[] highs =  { 3, 2, 3, 3, 3, 4 };    int[] times =  { 0, 1, 2, 3, 4, 5 };    CandlePlot cp = new CandlePlot();    cp.CloseData = closes;    cp.OpenData = opens;    cp.LowData = lows;    cp.HighData = highs;    cp.AbscissaData = times;    this.myPlot.Add(cp);    /////对数坐标轴////////         // x axis    LogAxis logax = new LogAxis(plotSurface.XAxis1);    logax.WorldMin = xmin;    logax.WorldMax = xmax;    logax.AxisColor = Color.Red;    logax.LabelColor = Color.Red;    logax.TickTextColor = Color.Red;    logax.LargeTickStep = 1.0f;    logax.Label = "x";    this.myPlot.XAxis1 = logax;    // y axis    LogAxis logay = new LogAxis(plotSurface.YAxis1);    logay.WorldMin = ymin;    logay.WorldMax = ymax;    logay.AxisColor = Color.Red;    logay.LabelColor = Color.Red;    logay.TickTextColor = Color.Red;    logay.LargeTickStep = 1.0f;    logay.Label = "x^2";    this.myPlot.YAxis1 = logay;    /////字符坐标轴////////    LabelAxis la1 = new LabelAxis(this.myPlot.XAxis1);    string[] sX = new string [15];    for (int i = 0; i < 15; i++)    {        la1.AddLabel(sX[i].ToString(), i);    }    la1.Label = "时间";    la1.TickTextFont = new Font("Courier New", 10);    la1.TicksBetweenText = true;    this.myPlot.XAxis1 = la1;    /////区域着色////////              FilledRegion fr = new FilledRegion(new VerticalLine(1.2),new VerticalLine(2.4));    //两条线之间的区域： FilledRegion fr = new FilledRegion(lp1, lp2);    fr.Brush = Brushes.BlanchedAlmond;    this.myPlot.Add(fr);   //////画箭头//////////    ArrowItem a = new ArrowItem(new PointD(2, 4),360-(30-90), "Arrow");    a.HeadOffset = 5;    a.ArrowColor = Color.Red;    a.TextColor = Color.Purple;    this.myPlot.Add(a);    this.myPlot.Refresh();}

//Sample code              //加入网格                Grid mygrid = new Grid();                myPlot.Add(mygrid);                myPlot.Title = "测试";                LinePlot lp = new LinePlot();                double[] a = new double[] { 1,2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };                string[] b = new string[] {"1", "2", "3", "4", "5","6", "7", "8", "9", "10","11", "12", };                double[] ab = new double[] { 0,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };                ArrayList dates = newArrayList();               dates.Add(Convert.ToDateTime("2007-01-01"));               dates.Add(Convert.ToDateTime("2008-01-02 "));               dates.Add(Convert.ToDateTime("2008-01-03 "));               dates.Add(Convert.ToDateTime("2008-01-04 "));               dates.Add(Convert.ToDateTime("2008-01-05 "));                dates.Add(Convert.ToDateTime("2008-01-06"));               dates.Add(Convert.ToDateTime("2008-01-07 "));               dates.Add(Convert.ToDateTime("2008-01-08 "));               dates.Add(Convert.ToDateTime("2008-01-09 "));                dates.Add(Convert.ToDateTime("2008-01-10"));               dates.Add(Convert.ToDateTime("2008-01-11 "));               dates.Add(Convert.ToDateTime("2008-02-12 "));                lp.AbscissaData = dates;                 //柱状                BarPlot storeGrowth = newBarPlot();                storeGrowth.AbscissaData =dates;                storeGrowth.OrdinateDataTop =a;                storeGrowth.OrdinateDataBottom= ab;                storeGrowth.FillBrush =NPlot.RectangleBrushes.Solid.Red;                //storeGrowth.BorderPen = newPen( Color.Black, 2.0f );                myPlot.Add(storeGrowth);                 //标签                LabelPointPlot tp1 = newLabelPointPlot();                tp1.AbscissaData = dates;                tp1.OrdinateData  = a;                tp1.TextData = b;                tp1.LabelTextPosition =LabelPointPlot.LabelPositions.Above;                tp1.Marker = newMarker(Marker.MarkerType.None, 10);                myPlot.Add(tp1);                 //lp.                lp.DataSource = a;                lp.Pen = new Pen(Color.Blue,3.0f);                lp.Label = "GaussianFunction";                myPlot.Add(lp);                myPlot.XAxis1.Label = "时间";                myPlot.YAxis1.Label = "次数";               //myPlot.XAxis1.WorldLength = 60 * 60 * 24;                //设置网格距离                //myPlot.XAxis1.WorldMin +=myPlot.XAxis1.WorldLength/ 12;//WorldLength=n*24*60*60;                //myPlot.XAxis1.WorldMax -=myPlot.XAxis1.WorldLength / 2;                //myPlot.XAxis1.                //myPlot.XAxis1.WorldLength =10;                //myPlot.                //让日期斜45度。                myPlot.XAxis1.TicksLabelAngle =45;                //下面代码可让窗体移动begin;                myPlot.AddInteraction(newNPlot.Windows.PlotSurface2D.Interactions.HorizontalDrag());                //myPlot.AddInteraction(newNPlot.Windows.PlotSurface2D.Interactions.VerticalDrag());                myPlot.AddInteraction(newNPlot.Windows.PlotSurface2D.Interactions.AxisDrag(true));                myPlot.Refresh();

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