Spread Windows Forms 7.0 Product Documentation
Creating an XY Plot
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Spread Windows Forms 7.0 Product Documentation > Developer's Guide > Working with the Chart Control > Creating Charts > Creating Plot Types > Creating an XY Plot

Glossary Item Box

You can create an XY Plot Chart using code or the designer. The following image shows an XY Plot point type chart.

XY Plots : Point Chart

For details on the API, see XYPlotArea class.

The following classes are also available when creating XY plot type charts:

Using Code

  1. Use the XYPointSeries class to add data to a Chart control.
  2. Use the XYPlotArea class to create the plot area.
  3. Set the location and size of the plot area.
  4. Add the series to the plot area.
  5. Create a label and legend for the chart.
  6. Create a chart model and add the plot area, label, and legend to the model.
  7. Create a chart and add the chart model to it.

Example

The following example demonstrates using unbound data to create an XY point chart.

C# Copy Code 
XYPointSeries series0 = new XYPointSeries();
series0.SeriesName = "Series 0";
series0.XValues.Add(1.0);
series0.XValues.Add(2.0);
series0.XValues.Add(4.0);
series0.XValues.Add(8.0);
series0.YValues.Add(2.0);
series0.YValues.Add(4.0);
series0.YValues.Add(3.0);
series0.YValues.Add(5.0);
XYPointSeries series1 = new XYPointSeries();
series1.SeriesName = "Series 1";
series1.XValues.Add(1.0);
series1.XValues.Add(3.0);
series1.XValues.Add(5.0);
series1.XValues.Add(7.0);
series1.YValues.Add(1.0);
series1.YValues.Add(2.0);
series1.YValues.Add(4.0);
series1.YValues.Add(8.0);
XYPlotArea plotArea = new XYPlotArea();
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.Text = "XY Point Chart";
label.Location = new PointF(0.5f, 0.02f);
label.AlignmentX = 0.5f;
label.AlignmentY = 0.0f;
LegendArea legend = new LegendArea();
legend.Location = new PointF(0.98f, 0.5f);
legend.AlignmentX = 1.0f;
legend.AlignmentY = 0.5f;
ChartModel model = new ChartModel();
model.LabelAreas.Add(label);
model.LegendAreas.Add(legend);
model.PlotAreas.Add(plotArea);
chart2DControl1.Model = model;
VB Copy Code 
Dim series0 As New FarPoint.Win.Chart.XYPointSeries()
series0.SeriesName = "Series 0"
series0.XValues.Add(1.0)
series0.XValues.Add(2.0)
series0.XValues.Add(4.0)
series0.XValues.Add(8.0)
series0.YValues.Add(2.0)
series0.YValues.Add(4.0)
series0.YValues.Add(3.0)
series0.YValues.Add(5.0)
Dim series1 As New FarPoint.Win.Chart.XYPointSeries()
series1.SeriesName = "Series 1"
series1.XValues.Add(1.0)
series1.XValues.Add(3.0)
series1.XValues.Add(5.0)
series1.XValues.Add(7.0)
series1.YValues.Add(1.0)
series1.YValues.Add(2.0)
series1.YValues.Add(4.0)
series1.YValues.Add(8.0)
Dim plotArea As New FarPoint.Win.Chart.XYPlotArea()
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 label As New FarPoint.Win.Chart.LabelArea()
label.Text = "XY Point Chart"
label.Location = New PointF(0.5F, 0.02F)
label.AlignmentX = 0.5F
label.AlignmentY = 0.0F
Dim legend As New FarPoint.Win.Chart.LegendArea()
legend.Location = New PointF(0.98F, 0.5F)
legend.AlignmentX = 1.0F
legend.AlignmentY = 0.5F
Dim model As New FarPoint.Win.Chart.ChartModel()
model.LabelAreas.Add(label)
model.LegendAreas.Add(legend)
model.PlotAreas.Add(plotArea)
Chart2DControl1.Model = model

Using the Chart Designer

  1. Select the PlotArea Collection editor.
  2. Click the drop-down button on the right side of the Add button (lower, left side of dialog).
  3. Select the XYPlotArea option and set properties as needed
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