return epsilonEqual(dot(cros, cros), 0.0, eps);
}
+ /**
+ * Test whether three 3D points are colinear.
+ * Implemented by calling overload isColinear3D(v1,v2, eps)
+ */
+ inline bool isColinear3DPts(const double *p1, const double *p2, const double *p3, const double eps = DEFAULT_ABS_TOL)
+ {
+ // check if these points are colinear
+ double vec1[3];
+ // p2-p1
+ std::transform(p2, p2 + 3, p1, vec1, std::minus<double>());
+ double vec2[3];
+ // p3-p2
+ std::transform(p3, p3 + 3, p2, vec2, std::minus<double>());
+ return isColinear3D(vec1, vec2, eps);
+ }
+
/**
* Caracteristic vector size (its biggest component, in absolute)
*/
