By shweta jain - Sunday, November 8, 2020
Hello,
Is Nevron chart support finger touch interactivity ?.
I want to add zoom functionality on finger pinch to zoom. Is it possible?
Please suggest some idea for How can I implement this zoom on finger pinch on Nevron chart.
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By Nevron Support - Tuesday, November 10, 2020
Hi Sweta,
The control does not have touch support for interactivity operations yet. You generally have to implement custom zooming in response to touch events.
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By shweta jain - Thursday, November 12, 2020
Hello,
Is it possible to control zoom control like by passing zoom in percentage on specified value?
Can u Please provide some code/reference related to how to implement custom zoom on chart?
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By Nevron Support - Monday, November 16, 2020
Hi Shweta,
The following code shows how to zoom in to a specified range on a particular axis:
NChart chart = nChartControl1.Charts[0];
NBarSeries bar = new NBarSeries();
chart.Series.Add(bar);
bar.DataLabelStyle.Visible = false;
bar.Values.Add(10);
bar.Values.Add(20);
bar.Values.Add(30);
// make sure all internal values are updated
nChartControl1.RecalcLayout();
// zoom in
NNumericAxisPagingView view = new NNumericAxisPagingView();
chart.Axis(StandardAxis.PrimaryX).PagingView = view;
view.ZoomIn(new NRange1DD(0.5, 1.5), 0);
Zooming this way (instead of using the NRangeAxisView) ensures you can also activate scrolling/panning later. We hope this helps - let us know if you have any questions.
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