This is the OpenGL visualization of the quadtree.
git clone https://github.com/ms-jagadeeshan/quadtree-visualization.git
g++ quad-x-gl.cpp quadtree.cpp -o quad-x-gl -lGL -lGLU -lglut
./quad-x-gl
- Drag mouse to draw.
- Use TAB key to switch between drawing and visualizing.
- Click mouse to visualize.