This example will generate a local refined mesh from the original
easymesh generated data. The obtained mesh is saved in file "D.dx".

Usage:
	1. compile with make [-e debug=no];
	2. generate the original mesh with easymesh as:
	     easymesh D
	3. run ./run, press ENTER to next refine round or CTRL+C
	   to stop;
	4. view the obtained mesh with OpenDX;

