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Combining Plot Types
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Spread Windows Forms 6.0 Product Documentation > Developer's Guide > Working with the Chart Control > Creating Charts > Creating Plot Types > Combining Plot Types

Glossary Item Box

Multiple series from the same major category are compatible with each other and can be combined in a single plot area. For example, a BarSeries and a LineSeries can be combined together in a YPlotArea.

Pareto Chart, example of a combined chart

For details on the API, see YPlotArea class.

The following classes are used to create the bar and line series example:

Using Code

  1. Use the BarSeries and LineSeries classes to add data to the Chart control.
  2. Use the YPlotArea class to create the plot area.
  3. Set the location and size of the plot area.
  4. Add both series to the plot area.
  5. Create a label for the chart.
  6. Create a chart model and add the plot area and label to the model.
  7. Create a chart and add the chart model to it.

Example

The following example demonstrates using unbound data to create a chart that uses a bar series and a line series.

C# Copy Code 
BarSeries series0 = new BarSeries();
 
series0.Values.Add(8.0);
 
series0.Values.Add(4.0);
 
series0.Values.Add(2.0);
 
series0.Values.Add(1.0);
 
LineSeries series1 = new LineSeries();
 
series1.PointMarker = new BuiltinMarker(MarkerShape.Circle, 7.0f);
 
series1.Values.Add(8.0);
 
series1.Values.Add(12.0);
 
series1.Values.Add(14.0);
 
series1.Values.Add(15.0);
 
YPlotArea plotArea = new YPlotArea();
 
plotArea.Location = new PointF(0.2f, 0.2f);
 
plotArea.Size = new SizeF(0.6f, 0.6f);
 
plotArea.Series.Add(series0);
 
plotArea.Series.Add(series1);
 
LabelArea label = new LabelArea();
 
label.Location = new PointF(0.5f, 0.02f);
 
label.AlignmentX = 0.5f;
 
label.AlignmentY = 0.0f;
 
label.Text = "Pareto Chart";
 
ChartModel model = new ChartModel();
 
model.LabelAreas.Add(label);
 
model.PlotAreas.Add(plotArea);
 
chart2DControl1.Model = model;
VB Copy Code 
Dim series0 As New FarPoint.Win.Chart.BarSeries()
 
series0.Values.Add(8.0)
 
series0.Values.Add(4.0)
 
series0.Values.Add(2.0)
 
series0.Values.Add(1.0)
 
Dim series1 As New FarPoint.Win.Chart.LineSeries()
 
series1.PointMarker = New FarPoint.Win.Chart.BuiltinMarker(FarPoint.Win.Chart.MarkerShape.Circle, 7.0F)
 
series1.Values.Add(8.0)
 
series1.Values.Add(12.0)
 
series1.Values.Add(14.0)
 
series1.Values.Add(15.0)
 
Dim plotArea As New FarPoint.Win.Chart.YPlotArea()
 
plotArea.Location = New PointF(0.2F, 0.2F)
 
plotArea.Size = New SizeF(0.6F, 0.6F)
 
plotArea.Series.Add(series0)
 
plotArea.Series.Add(series1)
 
Dim labelArea As New FarPoint.Win.Chart.LabelArea()
 
labelArea.Location = New PointF(0.5F, 0.02F)
 
labelArea.AlignmentX = 0.5F
 
labelArea.AlignmentY = 0.0F
 
labelArea.Text = "Pareto Chart"
 
Dim model As New FarPoint.Win.Chart.ChartModel()
 
model.LabelAreas.Add(labelArea)
 
model.PlotAreas.Add(plotArea)
 
Chart2DControl1.Model = model

Return to Creating Plot Types.

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