Spread Windows Forms 8.0 Product Documentation > Developer's Guide > Working with the Chart Control > Creating Charts > Connecting to Data > Using Raw and Represented Data |
You can set the scale of the data before displaying the data.
For example, if the data values are in the millions, you may wish to display them using a much smaller scale such as hundreds (100,000,000 vs 100). Use the DisplayUnits property in the ValueAxis class to set the scale.
Use the DisplayUnits property to create a smaller scale on the axis.
The following example uses the DisplayUnits property.
C# |
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FarPoint.Win.Chart.BarSeries series = new FarPoint.Win.Chart.BarSeries(); series.Values.Add(10000.0); series.Values.Add(20000.0); series.Values.Add(40000.0); series.Values.Add(80000.0); FarPoint.Win.Chart.YPlotArea plotArea = new FarPoint.Win.Chart.YPlotArea(); plotArea.Location = new PointF(0.2F, 0.2F); plotArea.Size = new SizeF(0.6F, 0.6F); plotArea.XAxis.Title = "Entry"; plotArea.XAxis.TitleVisible = true; plotArea.YAxes[0].DisplayUnits = 1000.0; plotArea.Series.Add(series); FarPoint.Win.Chart.ChartModel model = new FarPoint.Win.Chart.ChartModel(); model.PlotAreas.Add(plotArea); FarPoint.Win.Spread.Chart.SpreadChart chart = new FarPoint.Win.Spread.Chart.SpreadChart(); chart.Size = new Size(200, 200); chart.Location = new Point(100, 100); chart.Model = model; fpSpread1.Sheets[0].Charts.Add(chart); |
VB |
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Dim series As New FarPoint.Win.Chart.BarSeries() series.Values.Add(10000.0) series.Values.Add(20000.0) series.Values.Add(40000.0) series.Values.Add(80000.0) 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.XAxis.Title = "Entry" 'IndexAxis plotArea.XAxis.TitleVisible = True 'IndexAxis plotArea.YAxes(0).DisplayUnits = 1000.0 'ValueAxis plotArea.Series.Add(series) Dim model As New FarPoint.Win.Chart.ChartModel() model.PlotAreas.Add(plotArea) Dim chart As New FarPoint.Win.Spread.Chart.SpreadChart() chart.Size = New Size(200, 200) chart.Location = New Point(100, 100) chart.Model = model FpSpread1.Sheets(0).Charts.Add(chart) |