How to transform viewport coordinate to polar coordinate ?

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How to transform viewport coordinate to polar coordinate ?

Author	Message
Nevron Support	Nevron Support posted 5 Years Ago Post Details
Group: Administrators Posts: 3.1K, Visits: 4.2K	Hi Changmin, The following code shows how to transform from view to polar coordinate: NPolarChart polarChart = (NPolarChart)nChartControl1.Charts[0]; NPointF modelPoint = polarChart.TransformViewToRadialModel(new Nevron.GraphicsCore.NPointF(e.X, e.Y)); double value = polarChart.Axis(StandardAxis.PolarAngle).Scale.Ruler.ScaleToLogical(modelPoint.X); double angle = polarChart.Axis(StandardAxis.Polar).Scale.Ruler.ScaleToLogical(modelPoint.Y); We hope this helps - let us know if you have any questions. Best Regards, Nevron Support Team
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CHANGMIN KIM	CHANGMIN KIM posted 5 Years Ago Topic Details
Group: Forum Members Posts: 10, Visits: 25	Hi Team, I want to convert coordinates from the control perspective to coordinates from the chart perspective. I know how to do this with cartesian chart, but I have no idea on how to do this with polar chart. to be more specific, NCartesianChart chart1 = new NCartesianChart(); nChartControl.Charts.Add(chart1); NPolarChart chart2 = new NPolarChart(); nChartControl.Charts.Add(chart2); ... // I know how to do this NVector2DD ViewToCartesianScale(in MouseEventArgs e) { NViewToScale2DTransformation view2Scale = new NViewToScale2DTransformation(chart1, (int)StandardAxis.PrimaryX, (int)StandardAxis.PrimaryY); NVector2DD cartesianCoord = new NVector2DD(); view2Scale.Transform(new NPointF(e.X, e.Y), ref cartesianCoord); return cartesianCoord; } // I want to know void ViewToPolarScale(in MouseEventArgs e, out double angle, out double radius) { ?? } Thanks,,
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