private Tuple<PointF, PointF> GetPointNormal(RectangleF rectA, RectangleF rectB)
{
var normal = new PointF();
var point = new PointF();
if (Math.Abs(rectA.Left - rectB.Left) < MathUtils.PRECISION)
{
normal = rectA.LeftNormal();
point = new PointF(rectA.Left, 0);
}
else if (Math.Abs(rectA.Top - rectB.Top) < MathUtils.PRECISION)
{
normal = rectA.TopNormal();
point = new PointF(0, rectA.Top);
}
else if (Math.Abs(rectA.Right - rectB.Right) < MathUtils.PRECISION)
{
normal = rectA.RightNormal();
point = new PointF(rectA.Right, 0);
}
else if (Math.Abs(rectA.Bottom - rectB.Bottom) < MathUtils.PRECISION)
{
normal = rectA.BottomNormal();
point = new PointF(0, rectA.Bottom);
}
return new Tuple<PointF,PointF>(point, normal);
}
private PointF GetNormal(RectangleF rectA, RectangleF rectB)
{
var normal = new PointF();
// var point = new PointF();
if (Math.Abs(rectA.Left - rectB.Left) < MathUtils.PRECISION &&
rectA.Height >= rectA.Width)
normal = rectA.LeftNormal();
else if (Math.Abs(rectA.Top - rectB.Top) < MathUtils.PRECISION &&
rectA.Width >= rectA.Height)
normal = rectA.TopNormal();
else if (Math.Abs(rectA.Right - rectB.Right) < MathUtils.PRECISION &&
rectA.Height >= rectA.Width)
normal = rectA.RightNormal();
else if (Math.Abs(rectA.Bottom - rectB.Bottom) < MathUtils.PRECISION &&
rectA.Width >= rectA.Height)
normal = rectA.BottomNormal();
else
throw new Exception("Normal Error");
return normal;
}