added missing code changes

started working on refactoring of sensors
new test-cases

geo/BBox3.h

@@ -60,6 +60,17 @@ public:
 		p2 -= p;	// decrease maximum
 	}
 
+	/** grow the bbox by the amount given for each dimension */
+	void grow(const float v) {
+		grow(Point3(v,v,v));
+	}
+
+	/** grow the bbox by the amount given for each dimension */
+	void grow(const Point3& p) {
+		p1 -= p;	// decrease minimum
+		p2 += p;	// increase maximum
+	}
+
 	/** does the bbox contain the given point? */
 	bool contains(const Point3& p) const {
 		if (p.x < p1.x) {return false;}

geo/Point3.h

@@ -26,6 +26,8 @@ struct Point3 {
 
 	Point3 operator - (const Point3& o) const {return Point3(x-o.x, y-o.y, z-o.z);}
 
+	Point3 operator * (const Point3& o) const {return Point3(x*o.x, y*o.y, z*o.z);}
+
 	Point3 operator * (const float v) const {return Point3(v*x, v*y, v*z);}
 
 	Point3 operator / (const float v) const {return Point3(x/v, y/v, z/v);}
@@ -40,6 +42,8 @@ struct Point3 {
 	Point3& operator -= (const Point3& o) {x-=o.x; y-=o.y; z-=o.z; return *this;}
 
 
+	bool operator < (const Point3& o) const {return x<o.x && y<o.y && z<o.z;}
+
 	bool operator == (const Point3& o) const {return x==o.x && y==o.y && z==o.z;}
 
 	Point2 xy() const {return Point2(x,y);}