Description: This is a software for viewing 3D objects. The central widget of the mainwindow is a glivewer widget, which is developed from libqglviewer.
             This software can be used a basic framework for developing other complex GUIs by adding some fucntions.

Author: Sway
Time: 11/05/2014
Organization: Institute of Automation, Chinese Academy of Sciences


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GLViewer.h: defines the GLViewer class;
GLViewer.cpp: implement class members related to GLViewer class.

Mainwindow.h: defines the Mainwindow class
Mainwindow.cpp: implement class members related to Mainwindow class.

main.cpp: run the mainwindow classs 


11/07/2014 Find a Bug, if glNormalPointer are used, an error will happen.



11/21/2014 Find a Bug, in "sw_functions.cpp" function: EMClustering() 
            CvEM happen with QImage will result in a crash

           so we changed the image structure from QImage to cv::Mat, 
           and then the original version is stored in BuildingModellingSW if 
           the problem will be resolved oneday. 



11/22/2014 Wrong JPEG library version: library is 62, caller expects 80
           Opencv is compiled with libjpeg version 6.2


11/25//2014 Error happens that CGAL::cpp11 has not be declared
            this is cause by the CGAL version, we use CGAL version 3.9
            after we update to version 4.2 problem was solved.

11/25/2014 compile and install CGAL by "make"  and "sudo make install"
            all the libs are in the /usr/local/lib
           error happen could find shared library libCGAL.s0.10.0 
           We copy all the libs to /usr/lib/ and problem is solved.