RCHART .NET TUTORIAL, Chapter 10

Copyright 2003, J4L Components (http://www.java4less.com)
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RChart .NET windows Control

• Adding the ChartControl to your forms
• Creating the chart

Adding the ChartControl to your forms

The ChartControl allows you to displays chart in your windows applications. You can use our test application source/ChartViewer.cs as a reference.You can put the ChartControl in your panel or forms like this:

[c#]

void InitializeForm() {

this.chartControl= new J4L.RChart.ChartControl();
this.SuspendLayout();
this.chartControl.Location = new System.Drawing.Point(0, 0);
this.chartControl.Name = "chart";
this.chartControl.Size = new System.Drawing.Size(500, 350);
this.chartControl.TabIndex = 0;
//
// add chartControl to the form
//
this.ClientSize = new System.Drawing.Size(500, 350);
this.Controls.AddRange(new System.Windows.Forms.Control[] { this.chartControl});
this.Text = "Chart viewer";
this.ResumeLayout(false);

}

Creating the chart

Once the ChartControl is in your panel or form, you must create the chart. There are 3 ways to do this:

1. Load chart from data file:
   
   [c#]
   
   ChartLoader cha=chartControl.getChartLoader();
   cha.loadFromFile("dataFile.txt",true);
   chartControl.buildChart();
   this.Refresh(); // where "this" is your form
   
   
2. Provide the parameters in your code:
   
   [c#]
   
   ChartLoader cha=panel.getChartLoader();
   cha.clearParams();
   cha.setParameter("TITLECHART","Sales 2002");
   cha.setParameter("XLABEL","Month");
   cha.setParameter("YLABEL","Million $");
   .......
   .......
   cha.setParameter("BIG_TICK_INTERVALY","10");
   cha.setParameter("XAXIS_LABELS","June|July|Aug.|Sept.|Oct.|Nov.|Dec.");
   chartControl.buildChart();
   this.Refresh(); // where "this" is your form
   
   
3. Create the Chart object using the API:
   
   [c#]
   
   // data
   double[] d1={1,1,3,3.5,5,4,2};
   double[] d2={2,2,5,6,5.4,3.5,3.1};
   // series LineDataSerie
   data1= new LineDataSerie(doubleArrayToRValue(d1),new LineStyle(1,Color.Blue,LineStyle.LINE_NORMAL));
   // plotter
   LinePlotter3D plot=new LinePlotter3D();
   ......
   .....
   
   // create chart
   Chart chart=new Chart(title,plot,XAxis,YAxis);
   plot.border=new LineStyle(1,Color.Black,LineStyle.LINE_NORMAL);
   plot.back=new FillStyle(Color.White);
   chart.XLabel=XLabel;
   chart.YLabel=YLabel;
   chart.legend=l;
   chart.addSerie(data2);
   chart.addSerie(data1);
   
   chartControl.setChart(chart);
   this.Refresh(); // where "this" is your form