added new data-structures

added new test-cases
added flexible dijkstra calculation
added debugging log
modified: plotting, grid-generation, grid-importance,
refactoring

geo/Point3.h

@@ -24,6 +24,18 @@ struct Point3 {
 
 	Point3 operator * (const float v) const {return Point3(v*x, v*y, v*z);}
 
+	Point3& operator /= (const float v) {x/=v; y/=v; z/=v; return *this;}
+
+	float length() const {return std::sqrt(x*x + y*y + z*z);}
+
+	float length(const float norm) const {
+		return std::pow(
+					(std::pow(std::abs(x),norm) +
+					 std::pow(std::abs(y),norm) +
+					 std::pow(std::abs(z),norm)
+				), 1.0f/norm);
+	}
+
 };
 
 #endif // POINT3_H