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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /info/examples/lgc2/4-6-3.mp
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+% --- start of displayed preamble in the book ---
+input featpost3Dplus2D
+% --- end of displayed preamble in the book ---
+defaultfont:="ptmr8r";
+warningcheck:=0;
+beginfig(1)
+Spread := 30;
+f := 5.4*(1.5,0.5,1);
+numeric gridstep, sidenumber,
+ i, j, coord, aa, ab, ac;
+color pa;
+gridstep = 0.7;
+sidenumber = 4;
+coord = 0.5*sidenumber*gridstep;
+for i=0 upto sidenumber:
+ for j=0 upto sidenumber:
+ pa := (-coord+j*gridstep,-coord+i*gridstep,0);
+ aa := uniformdeviate(360);
+ ab := uniformdeviate(180);
+ ac := uniformdeviate(90);
+ kindofcube(false, false,
+ pa, aa, ab, ac, 0.4, 0.4, 0.9 );
+ endfor;
+endfor;
+endfig;
+end;