bool intersectPlaneWithLine(SnapItem Plane, SnapItem Line, xyzArray LineArray, ref double Lam, ref xyz Result)
{
TriangleF T = Plane.GetTriangle();
if (T == null)
{
return(false);
}
xyz N1 = ((T.B - T.A) & (T.C - T.A)).Toxyz();
if (LineArray == null)
{
}
xyz N2 = LineArray.cross();
if ((N1 & N2).length() < 0.00001) // Parallel
{
xyzArray A = Plane.getxyzArray();
if (A != null)
{
xyzArray B = LineArray;
List <CrossTag1> L = CrossTag1.GetCrossList(A, B);
for (int i = 0; i < L.Count; i++)
{
if (A.Value(L[i].Lam1).dist(Plane.Point) <= SnapItem.Snapdist)
{
Lam = L[i].Lam1;
Result = A.Value(L[i].Lam1);
return(true);
}
}
}
}
int Object = StoredSnapItems.IndexOf(Plane);
int siz = SnapDistance * 2 + 1;
// int siz = SnapDistance;
Drawing3d.PrimIdObj[,] P = SubArray(Device.MousePos.X - siz / 2, (int)Device.ViewPort.Height - Device.MousePos.Y - siz / 2, siz, siz);
List <TriangleF> LT = GetTriangles(P, Object);
Lam = -1;
bool R = Cross(LT, LineArray, ref Lam, ref Result);
return(R);
}
bool IntersectLines(xyzArray A, xyzArray B, xyz NearPoint, ref xyz CrossPoint)
{
List <CrossTag1> L = CrossTag1.GetCrossList(A, B);
for (int i = 0; i < L.Count; i++)
{
if (A.Value(L[i].Lam1).dist(NearPoint) <= SnapItem.Snapdist)
{
CrossPoint = A.Value(L[i].Lam1);
return(true);
}
}
return(false);
}
void IntersectLines(List <xyzArray> Arrays, List <SnapItem> Snap)
{
xyzArray A = Arrays[0];
xyzArray B = Arrays[1];
List <CrossTag1> L = CrossTag1.GetCrossList(A, B);
for (int i = 0; i < L.Count; i++)
{
if (A.Value(L[i].Lam1).dist(Snap[0].Point) <= SnapItem.Snapdist)
{
Snap[0].Point = A.Value(L[i].Lam1);
Snap[1].Point = Snap[0].Point;
Snap[0].Crossed = true;
Snap[1].Crossed = true;
break;
}
}
}