private bool CanRotate(double angle)
{
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
return(CanChangePosition(p => FiguresUtils.RotatePoint(p - Center, cos, sin) + Center));
}
public virtual void RotateAroundOf(Point rotationsCenter, double angle)
{
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
for (int i = 0; i < _definingPoints.Count; i++)
{
_definingPoints[i] = FiguresUtils.RotatePoint(_definingPoints[i] - rotationsCenter, cos, sin) + rotationsCenter;
}
OnUpdate();
}