|
public static InScanArea ( |
||
| pa | ||
| pb | ||
| pc | ||
| pd | ||
| return | bool | |
public static bool InScanArea(TriangulationPoint pa, TriangulationPoint pb, TriangulationPoint pc, TriangulationPoint pd)
{
double oadb = (pa.X - pb.X) * (pd.Y - pb.Y) - (pd.X - pb.X) * (pa.Y - pb.Y);
if (oadb >= -EPSILON)
{
return false;
}
double oadc = (pa.X - pc.X) * (pd.Y - pc.Y) - (pd.X - pc.X) * (pa.Y - pc.Y);
if (oadc <= EPSILON)
{
return false;
}
return true;
}