public Eye(CoordD origin, double radius, double theta, double offset, double magnitude)
{
Radius = radius;
Ray = new Ray(origin.ByAngle(theta + offset, radius), theta, magnitude);
Offset = offset;
while (Offset < 0) Offset += Consts.FullTurn;
while (Offset >= Consts.FullTurn) Offset -= Consts.FullTurn;
}
