public static void CartesianToPolar(Point center, Point point, out double radius, out double degree)
{
var d = point - center;
radius = d.Length;
degree = GunTraverseHelper.NormalizeAngle(-Math.Atan2(d.Y, d.X) * 180 / Math.PI);
}
public static double RotateAngle(double from, double to, double delta, double limitRight, double limitLeft)
{
from = GunTraverseHelper.NormalizeAngle(from);
to = GunTraverseHelper.NormalizeAngle(to);
if (Math.Abs(from - to) < 0.0001)
{
return(to);
}
delta = GunTraverseHelper.NormalizeAngle(delta);
double direction;
if (from < to)
{
if (limitRight + limitLeft < 360 &&
from <= limitRight &&
to >= 360 - limitLeft)
{
direction = -1.0;
}
else if (to - from > 180)
{
direction = -1.0;
}
else
{
direction = 1.0;
}
}
else
{
if (limitRight + limitLeft < 360 &&
to <= limitRight &&
from >= 360 - limitLeft)
{
direction = 1.0;
}
else if (from - to > 180)
{
direction = 1.0;
}
else
{
direction = -1.0;
}
}
var result = from + delta * direction;
if ((from < to && result > to) || (from > to && result < to))
{
result = to;
}
return(result);
}