e.GetPosition(_radChartArea) convert to x and y scale value and vice versa

[leblanc]

> e.GetPosition(_radChartArea) convert to x and y scale value and vice versa

I'm trying to use a radchart and need to provide the user control handles to modify a MarkedZone.

Is there an existing api I can use to translate back and forth from x/y scale in chartarea to point relative to chartarea?
 

[Vladimir Milev]

Hi leblanc,

There is a method on t he Axis class called ConvertDataUnitsToPhysical.

Its implementation is actually quite simple:

public double ConvertDataUnitsToPhysical(double inputRange)
{
    return ((inputRange / this.ActualRange) * this.Length);
}

It converts data units to their physical length in DIP as measured by the axis.


Regards,
Vladimir Milev
the Telerik team