\buildVoronoiBW[tikz,mode=ext,delaunay=show,colorVoronoi=green!60!blue]{mesh.txt}\par
\buildVoronoiBW[tikz,mode=ext,print=points,delaunay=show,bbox=show,meshpoint=x,circumpoint=y]{mesh.txt}
+\buildVoronoiBWinc[mode=ext]{mesh.txt}{beginfig(0);}{endfig;}
+\buildVoronoiBWinc[tikz,mode=ext]{mesh.txt}{}{}
+
+
+\buildVoronoiBWinc[tikz,mode=ext,print=points,delaunay=show,meshpoint=x,circumpoint=y]{mesh.txt}{}{\draw[color=blue,thick] (0,0)--(3,3);}
+
\end{document}