X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=hacks%2Fconfig%2Fprojectiveplane.xml;fp=hacks%2Fconfig%2Fprojectiveplane.xml;h=44f83a4b8cc23bb3cddc7ecd18be221158251c7c;hp=0000000000000000000000000000000000000000;hb=8afc01a67be4fbf3f1cc0fce9adf01b5289a21c6;hpb=3f1091236d800c43a3124c44c7da54e53f205b13 diff --git a/hacks/config/projectiveplane.xml b/hacks/config/projectiveplane.xml new file mode 100644 index 00000000..44f83a4b --- /dev/null +++ b/hacks/config/projectiveplane.xml @@ -0,0 +1,131 @@ + + + + + + +
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+ + + + <_description> +This animates a 4D embedding of the real projective plane. + +You can walk on the surface of the real projective plane or rotate it +in 4D or walk on it while it rotates in 4D. Inspired by Thomas +Banchoff's book "Beyond the Third Dimension: Geometry, Computer +Graphics, and Higher Dimensions", Scientific American Library, 1990. + +http://en.wikipedia.org/wiki/Real_projective_plane +http://en.wikipedia.org/wiki/Roman_surface +http://en.wikipedia.org/wiki/Cross_cap +http://en.wikipedia.org/wiki/Moebius_strip +http://mathworld.wolfram.com/RealProjectivePlane.html +http://mathworld.wolfram.com/RomanSurface.html +http://mathworld.wolfram.com/Cross-Cap.html +http://mathworld.wolfram.com/MoebiusStrip.html + +Written by Carsten Steger; 2014. + +