many changes :P

geo/BBox3.h

@@ -0,0 +1,54 @@
+#ifndef BBOX3_H
+#define BBOX3_H
+
+#include "Point3.h"
+
+class BBox3 {
+
+private:
+
+	static constexpr float MAX = +99999;
+	static constexpr float MIN = -99999;
+
+	/** minimum */
+	Point3 p1;
+
+	/** maximum */
+	Point3 p2;
+
+public:
+
+	BBox3() : p1(MAX,MAX,MAX), p2(MIN,MIN,MIN) {;}
+
+	/** adjust the bounding-box by adding this point */
+	void add(const Point3& p) {
+
+		if (p.x > p2.x) {p2.x = p.x;}
+		if (p.y > p2.y) {p2.y = p.y;}
+		if (p.z > p2.z) {p2.z = p.z;}
+
+		if (p.x < p1.x) {p1.x = p.x;}
+		if (p.y < p1.y) {p1.y = p.y;}
+		if (p.z < p1.z) {p1.z = p.z;}
+
+	}
+
+	/** get the bbox's minimum */
+	const Point3& getMin() const {return p1;}
+
+	/** get the bbox's maximum */
+	const Point3& getMax() const {return p2;}
+
+	/** equal? */
+	bool operator == (const BBox3& o) const {
+		return	(p1.x == o.p1.x) &&
+				(p1.y == o.p1.y) &&
+				(p1.z == o.p1.z) &&
+				(p2.x == o.p2.x) &&
+				(p2.y == o.p2.y) &&
+				(p2.z == o.p2.z);
+	}
+
+};
+
+#endif // BBOX3_H