Changeset 318 for trunk/VUT/GtpVisibilityPreprocessor/src/Vector3.h

Timestamp:

10/11/05 19:25:27 (19 years ago)

Author:

mattausch

Message:

VisibilityInfo?: query sort operators as templates
X3dExporter: Fixed polygon wire frame, bsp splits, and bsp split planes visualization
ViewCellBsp?: Added rays to split criteria (not finished yet)
OgreOctreeSceneManager?: fixed error (mNumOctants instead of mNumOctrees)

File:

• trunk/VUT/GtpVisibilityPreprocessor/src/Vector3.h (modified) (1 diff)

trunk/VUT/GtpVisibilityPreprocessor/src/Vector3.h

@@ -299 +299 @@
 }
 
+// angle between two vectors with respect to a surface normal in the
+// range [0 .. 2 * pi]
+inline float
+Angle(const Vector3 &A, const Vector3 &B, const Vector3 &norm)
+{
+        Vector3 cross = CrossProd(A, B);
+
+        float signedAngle;
+
+        if (DotProd(cross, norm) > 0)
+                signedAngle = atan2(-Magnitude(CrossProd(A, B)), DotProd(A, B));
+        else
+                signedAngle = atan2(Magnitude(CrossProd(A, B)), DotProd(A, B));
+
+        if (signedAngle < 0)
+                return 2 * PI + signedAngle;
+
+        return signedAngle;
+}
+
 inline Vector3
 Vector3::operator+() const