public void FindExtendIndices(PointD A, PointD B, out int one, out int two)
{
double leftdistance = 0;
double rightdistance = 0;
int leftindex = 0;
int rightindex = 0;
for (int i = 0; i < Shape.Count(); i++)
{
PointD C = new PointD(Shape.Vertices[i].X + A.X, Shape.Vertices[i].Y + A.Y);
//bool side = isLeft(A, B, C);
double dist = (double)PointD.CrossProduct(A, B, C);
if (dist > 0)
{
if (rightdistance < dist)
{
rightdistance = dist;
rightindex = i;
}
;
}
else
{
dist = -dist;
if (leftdistance < dist)
{
leftdistance = dist;
leftindex = i;
}
;
}
}
two = leftindex;
one = rightindex;
}
