Changeset 1981 for GTP/trunk/Lib/Vis/Preprocessing/src/AxisAlignedBox3.cpp

Timestamp:

01/15/07 16:28:59 (17 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/Lib/Vis/Preprocessing/src/AxisAlignedBox3.cpp (modified) (1 diff)

GTP/trunk/Lib/Vis/Preprocessing/src/AxisAlignedBox3.cpp

@@ -2353 +2353 @@
 }
 
-
-}
-
+/*
+int inline GetIntersection(const float fDst1, 
+                                                   const float fDst2, 
+                                                   const Vector3 p1, 
+                                                   const Vector3 p2, 
+                                                   const Vector3 &hit) 
+{
+        if ((fDst1 * fDst2) >= 0.0f) 
+                return 0;
+    
+        if (fDst1 == fDst2) 
+                return 0; 
+    
+        hit = p1 + (p2 - p1) * (-fDst1 / (fDst2 - fDst1));
+        
+        return 1;
+}
+
+
+int inline InBox( CVec3 Hit, CVec3 B1, CVec3 B2, const int Axis) {
+if ( Axis==1 && Hit.z > B1.z && Hit.z < B2.z && Hit.y > B1.y && Hit.y < B2.y) return 1;
+if ( Axis==2 && Hit.z > B1.z && Hit.z < B2.z && Hit.x > B1.x && Hit.x < B2.x) return 1;
+if ( Axis==3 && Hit.x > B1.x && Hit.x < B2.x && Hit.y > B1.y && Hit.y < B2.y) return 1;
+return 0;
+}
+
+// returns true if line (L1, L2) intersects with the box (B1, B2)
+// returns intersection point in Hit
+int CheckLineBox( CVec3 B1, CVec3 B2, CVec3 L1, CVec3 L2, CVec3 &Hit)
+{
+if (L2.x < B1.x && L1.x < B1.x) return false;
+if (L2.x > B2.x && L1.x > B2.x) return false;
+if (L2.y < B1.y && L1.y < B1.y) return false;
+if (L2.y > B2.y && L1.y > B2.y) return false;
+if (L2.z < B1.z && L1.z < B1.z) return false;
+if (L2.z > B2.z && L1.z > B2.z) return false;
+if (L1.x > B1.x && L1.x < B2.x &&
+    L1.y > B1.y && L1.y < B2.y &&
+    L1.z > B1.z && L1.z < B2.z) 
+    {Hit = L1; 
+    return true;}
+if ( (GetIntersection( L1.x-B1.x, L2.x-B1.x, L1, L2, Hit) && InBox( Hit, B1, B2, 1 ))
+  || (GetIntersection( L1.y-B1.y, L2.y-B1.y, L1, L2, Hit) && InBox( Hit, B1, B2, 2 )) 
+  || (GetIntersection( L1.z-B1.z, L2.z-B1.z, L1, L2, Hit) && InBox( Hit, B1, B2, 3 )) 
+  || (GetIntersection( L1.x-B2.x, L2.x-B2.x, L1, L2, Hit) && InBox( Hit, B1, B2, 1 )) 
+  || (GetIntersection( L1.y-B2.y, L2.y-B2.y, L1, L2, Hit) && InBox( Hit, B1, B2, 2 )) 
+  || (GetIntersection( L1.z-B2.z, L2.z-B2.z, L1, L2, Hit) && InBox( Hit, B1, B2, 3 )))
+        return true;
+
+return false;
+}
+*/
+
+}
+