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  \documentclass{article}
  %% lualatex compilation
  \usepackage[margin=2.5cm]{geometry}
  \usepackage{luamesh}
  \usepackage{fontspec}
  \usepackage{multido}
  \pagestyle{empty}
  \def\drawPath{draw (-2,-2)*u--(8,-2)*u--(8,6)*u--(-2,6)*u--cycle  withcolor 0.99white;}
  \def\clipPath{clip currentpicture to (-2,-2)*u--(8,-2)*u--(8,6)*u--(-2,6)*u--cycle;}
  \begin{document}
  \drawPointsMeshinc[mode=ext, bbox = show,colorBbox = blue!20,print=points]{mesh.txt}%
  {%
    beginfig(0);
    \drawPath
  }%
  {%
    \clipPath
    endfig;
  }
  \newpage\buildMeshBWinc[mode=ext,bbox = show,colorBbox = blue!20,print=points]{meshInit.txt}%
  {%
    beginfig(0);
    \drawPath
  }%
  {%
    \clipPath
    endfig;
  }
  \multido{\ii=5+1}{4}{%
    \newpage\meshAddPointBWinc[mode=ext,step=badtriangles,colorNew
    =green!20!red,colorBack=red!10,colorCircle = blue,bbox =
    show,colorBbox = blue!20]{mesh.txt}{\ii}%
    {%
      beginfig(0);
      \drawPath
    }%
    {%
      \clipPath
      endfig;
    }   \newpage
    \meshAddPointBWinc[mode=ext,step=cavity,colorNew
    =green!20!red,colorBack=red!10,colorCircle = blue,bbox =
    show,colorBbox = blue!20]{mesh.txt}{\ii}%
    {%
      beginfig(0);
      \drawPath
    }%
    {%
      \clipPath
      endfig;
    }  \newpage
    \meshAddPointBWinc[mode=ext,step=newtriangles,colorNew
    =green!20!red,colorBack=red!10,colorCircle = blue,bbox =
    show,colorBbox = blue!20]{mesh.txt}{\ii}%
    {%
      beginfig(0);
      \drawPath
    }%
    {%
      \clipPath
      endfig;
    }
  }
  \newpage
  \buildMeshBWinc[mode=ext,bbox = show,colorBbox = blue!20,print=points]{mesh.txt}%
  {%
    beginfig(0);
    \drawPath
  }%
  {%
    \clipPath
    endfig;
  }
  \newpage
  \buildMeshBWinc[mode=ext,print=points]{mesh.txt}%
  {%
    beginfig(0);
    \drawPath
  }%
  {%
    \clipPath
    endfig;
  }
\end{document}