//Converts a cartesian coordinate pair to polar
private void ConvertFromCartesian(MMUnits units, double x, double y, out double xTheta, out double yR)
{
double radiusTemp;
if (units == MMUnits.mmCartesian)
{
xTheta = x;
yR = y;
}
else
{
radiusTemp = Math.Sqrt(x * x + y * y);
xTheta = Math.Atan2(y, x);
if (units == MMUnits.mmDegrees)
xTheta *= 180.0 / Math.PI;
else if (units == MMUnits.mmGradians)
xTheta *= 200.0 / Math.PI;
yR = radiusTemp;
}
}
//Converts a graph coordinate pair to cartesian from polar coordinates
private void ConvertToCartesian(MMUnits units, double xTheta, double yR, out double x, out double y)
{
double angleTemp;
if (units == MMUnits.mmCartesian)
{
x = xTheta;
y = yR;
}
else
{
angleTemp = xTheta;
if (units == MMUnits.mmDegrees)
angleTemp *= Math.PI / 180.0;
else if (units == MMUnits.mmGradians)
angleTemp *= Math.PI / 200.0;
x = yR * Math.Cos(angleTemp);
y = yR * Math.Sin(angleTemp);
}
}
