1) Data folder of polyhedra "polyhedrons_obj" is downloadable from the next website:
http://mitani.cs.tsukuba.ac.jp/polyhedron/
2) Store the folder into someplace, for example, "ketcindy" in the user home.
3) Open a cindy file and write scripts like the followings in the editor.
Setdirectory(Dirhead+"polyhedrons_obj"); // Dirhead is "ketcindy" in the user home.
poly=Readobj("r02.obj",["size=-3.5"]);
Setdirectory(Dirwork);
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