internal static bool LineLineIntersection(double2 a0, double2 a1, double2 b0, double2 b1)
{
var x0 = UTess.OrientFastDouble(a0, b0, b1);
var y0 = UTess.OrientFastDouble(a1, b0, b1);
if ((x0 > kEpsilon && y0 > kEpsilon) || (x0 < -kEpsilon && y0 < -kEpsilon))
{
return(false);
}
var x1 = UTess.OrientFastDouble(b0, a0, a1);
var y1 = UTess.OrientFastDouble(b1, a0, a1);
if ((x1 > kEpsilon && y1 > kEpsilon) || (x1 < -kEpsilon && y1 < -kEpsilon))
{
return(false);
}
// Check for degenerate collinear case
if (math.abs(x0) < kEpsilon && math.abs(y0) < kEpsilon && math.abs(x1) < kEpsilon && math.abs(y1) < kEpsilon)
{
return(CheckCollinear(a0, a1, b0, b1));
}
return(true);
}
