The backbone of the code is taken from https://www.boost.org/doc/libs/1_54_0/libs/polygon/example/voronoi_visualizer.cpp.
This project is using Qt5 for GUI and boost::polygon library for geometric computation. Boost::polygon is a header-only library. To build the project,
mkdir build
cd build
cmake ..
Lanuch voronoi_visualizer executable and select input directory. Double click on the txt file to display the polygons with inside filled.