Monotonous polygon triangulation in O(n log n) time.

Make project: 
    git submodule update --init
    cd visualization
    (optionally rm PRECOMPILED_HEADER = stdafx.h in geom.visualization.pro)
    qmake && make
    cd ..
    qmake && make


Space to space to start drawing polygon. Last edge will be added automatically!
Add polygon point:   double click (in polygon drawing mode)
Build triangulation: press key 'Enter' (only if polygon is loaded)
Save points:         press key 'S'
Load points:         press key 'L'