[MathLib] Remove twice implemented functionality.

MathLib/MathTools.cpp

@@ -62,23 +62,6 @@ double getAngle (const double p0[3], const double p1[3], const double p2[3])
 	return acos (scalarProduct<double,3> (v0,v1) / (sqrt(scalarProduct<double,3>(v0,v0)) * sqrt(scalarProduct<double,3>(v1,v1))));
 }
 
-double calcTriangleArea(const double* p0, const double* p1, const double* p2)
-{
-	const double u0 (p2[0] - p0[0]);
-	const double u1 (p2[1] - p0[1]);
-	const double u2 (p2[2] - p0[2]);
-
-	const double v0 (p1[0] - p0[0]);
-	const double v1 (p1[1] - p0[1]);
-	const double v2 (p1[2] - p0[2]);
-
-	const double z0 (u1 * v2 - u2 * v1);
-	const double z1 (u2 * v0 - u0 * v2);
-	const double z2 (u0 * v1 - u1 * v0);
-
-	return 0.5 * sqrt(z0 * z0 + z1 * z1 + z2 * z2);
-}
-
 double calcTetrahedronVolume(const double* x1, const double* x2, const double* x3, const double* x4)
 {
 	return fabs((x1[0] - x4[0]) * ((x2[1] - x4[1]) * (x3[2] - x4[2]) - (x2[2] - x4[2]) * (x3[1] - x4[1]))

MathLib/MathTools.h

@@ -148,12 +148,6 @@ float normalize(float min, float max, float val);
  */
 double getAngle (const double p0[3], const double p1[3], const double p2[3]);
 
-/**
- * Calculates the area of a triangle.
- * The formula is A=.5*|u x v|, i.e. half of the area of the parallelogram specified by u=p0->p1 and v=p0->p2.
- */
-double calcTriangleArea(const double* p0, const double* p1, const double* p2);
-
 /**
  * Calculates the volume of a tetrahedron.
  * The formula is V=1/6*|a(b x c)| with a=x1->x2, b=x1->x3 and c=x1->x4.