The axis scroll tool passes mouse and keyboard events to the scrollbars of the axis when they are enabled. It can work closely with the NDataPanTool and NDataZoomTool tools to produce highly interactive charts.
The following code will create an XY Scatter Point chart that enable the user to zoom in/out,scroll and pan it's data:
| C# |
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NChart chart = chartControl.Charts[0]; // create the point series NPointSeries point = (NPointSeries)chart.Series.Add(SeriesType.Point); point.UseXValues = true; Random random = new Random(); for (int i = 0; i < 10; i++) { point.Values.Add(random.Next(100)); point.XValues.Add(random.Next(100)); } // configure the axes NLinearScaleConfigurator linearScale = new NLinearScaleConfigurator(); chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = linearScale; chart.Axis(StandardAxis.PrimaryX).ScrollBar.ResetButton.Visible = false; NNumericAxisPagingView numericPagingView = new NNumericAxisPagingView(new NRange1DD(0, 20)); chart.Axis(StandardAxis.PrimaryX).PagingView = numericPagingView; numericPagingView = new NNumericAxisPagingView(new NRange1DD(0, 20)); chart.Axis(StandardAxis.PrimaryY).PagingView = numericPagingView; chart.Axis(StandardAxis.PrimaryY).ScrollBar.ResetButton.Visible = false; chart.Axis(StandardAxis.PrimaryX).ScrollBar.Visible = true; chart.Axis(StandardAxis.PrimaryY).ScrollBar.Visible = true; chartControl.Controller.Tools.Add(new NAxisScrollTool()); // add range selection (needed for zoom in) chart.RangeSelections.Add(new NRangeSelection()); // configure the tools collection chartControl.Controller.Tools.Add(new NSelectorTool()); chartControl.Controller.Tools.Add(new NAxisScrollTool()); chartControl.Controller.Tools.Add(new NDataZoomTool()); chartControl.Controller.Tools.Add(new NDataPanTool()); chartControl.Refresh(); |
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| Visual Basic |
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Dim chart As NCartesianChart = chartControl.Charts(0) ' create the point series Dim point As NPointSeries = chart.Series.Add(SeriesType.Point) Point.UseXValues = True Dim random As New Random For i As Integer = 0 To 9 point.Values.Add(random.Next(100)) point.XValues.Add(random.Next(100)) Next i ' configure the axes Dim linearScale As NLinearScaleConfigurator = New NLinearScaleConfigurator chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = linearScale chart.Axis(StandardAxis.PrimaryX).ScrollBar.ResetButton.Visible = False Dim numericPagingView As NNumericAxisPagingView = New NNumericAxisPagingView(New NRange1DD(0, 20)) chart.Axis(StandardAxis.PrimaryX).PagingView = numericPagingView numericPagingView = New NNumericAxisPagingView(New NRange1DD(0, 20)) chart.Axis(StandardAxis.PrimaryY).PagingView = numericPagingView chart.Axis(StandardAxis.PrimaryY).ScrollBar.ResetButton.Visible = False chart.Axis(StandardAxis.PrimaryX).ScrollBar.Visible = True chart.Axis(StandardAxis.PrimaryY).ScrollBar.Visible = True chartControl.Controller.Tools.Add(New NAxisScrollTool) ' add range selection (needed for zoom in) chart.RangeSelections.Add(New NRangeSelection) ' configure the tools collection chartControl.Controller.Tools.Add(New NSelectorTool) chartControl.Controller.Tools.Add(New NAxisScrollTool) chartControl.Controller.Tools.Add(New NDataZoomTool) chartControl.Controller.Tools.Add(New NDataPanTool) chartControl.Refresh() |
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