public Line(Point origin, Point direction)
: this()
{
Origin = origin;
Direction = direction;
Normal = direction.Perp();
Ax = Normal.X;
By = Normal.Y;
C = Point.Dot(-PointAtDistance((Real)1.0), Normal);
}
public static int DetermineSide(Line line, Point normal, Point point)
{
Real value = Point.Dot(line.Normal, point) + line.C;
if (Math.Abs(value) < MathHelper.Epsilon)
{
return(0);
}
else if (value < 0)
{
return(-1);
}
else //if (value > 0)
{
return(1);
}
}