move the model to the center,

clean up variables,
use delete[]

MshViewer/Header/Object.h

@@ -71,5 +71,5 @@ private:
 public:
 	std::vector<Modl*>* getModels() const;
 	std::vector<std::string> getTextureList() const;
-
+	Bbox getBoundgBox() const;
 };

MshViewer/Header/OpenGLController.h

@@ -72,6 +72,7 @@ private:
 	// data
 	std::vector<Modl*>* vModels = NULL;
 	std::vector<textureData*> vTextures;
+	Bbox sceneBoundingBox;
 
 // transformation =========================
 	//values