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Transform Chart Point to Mouse Position?

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Posted 2 Years Ago
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Last Active: 2 Years Ago
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Given a mouse position on a Cartesian chart, I can transform the point into a chart point using the following code:


  protected NPointD TransformMousePositionToChartPoint(NMouseEventArgs e)
   {
    var view2Scale = new NViewToScale2DTransformation(this.cartesianChart, (int)StandardAxis.PrimaryX, (int)StandardAxis.PrimaryY);
    var scalePoint = new NVector2DD();
    view2Scale.Transform(new NPointF(e.X, e.Y), ref scalePoint);
    var transformedPoint = new NPointD();
    transformedPoint.X = scalePoint.X;
    transformedPoint.Y = scalePoint.Y;
    return transformedPoint;
   }


Can I do the reverse? Given a point on the chart, can I transform it into a mouse position? If so, how?

Nevron Support
Posted 2 Years Ago
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Hi,

Yes, you can do the opposite transformation using NScale2DToViewTransformation:

NScale2DToViewTransformation transform = new NScale2DToViewTransformation(chart, (int)StandardAxis.PrimaryX, (int)StandardAxis.PrimaryY);

Let us know if you have any questions.

Best Regards,
Nevron Support Team





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