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diff --git a/Master/texmf-dist/doc/metapost/featpost/example/tug04/kindofcube.mp b/Master/texmf-dist/doc/metapost/featpost/example/tug04/kindofcube.mp
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+% kindofcube.mp
+% L. Nobre G.
+% 2004
+
+verbatimtex \documentclass{article}\begin{document}{\sffamily etex
+
+beginfig(1);
+ f := (4,1.2,0.5);
+ Spread := 120;
+ numeric lena, lenb, lenc, aa, ab, ac, angray, micr, labscal;
+ pair zeror;
+ color axa, axb, axc, returnedcorner, dummyc, auxx, auxy;
+ lena=0.3;
+ lenb=0.6;
+ lenc=0.9;
+ aa=130;
+ ab=32;
+ ac=67;
+ labscal=1.6;
+ angray=0.85;
+ micr=0.01;
+ zeror=rp(black);
+ cartaxes(1.2,1,1.15);
+ axa = ( cosd(aa), sind(aa), 0 );
+ axb = axa*cosd(ab)+blue*sind(ab);
+ auxx= ( cosd(aa+90), sind(aa+90), 0);
+ auxy = ncrossprod( axb, auxx );
+ axc = auxx*cosd(ac)+auxy*sind(ac);
+ draw zeror--rp(axa);
+ draw zeror--rp(axb);
+ draw zeror--rp(-0.6*axa);
+ draw zeror--rp(axc);
+ draw zeror--rp(auxx);
+ label.rt( btex $a$ etex scaled labscal, rp(axa) );
+ label.rt( btex $b$ etex scaled labscal, rp(axb) );
+ label.lft( btex $c$ etex scaled labscal, rp(auxx) );
+ label.lft( btex $d$ etex scaled labscal, rp(axc) );
+ angline( axa,red,black,angray,btex $\alpha_1$ etex scaled labscal,bot );
+ angline( axb,axa,black,angray,btex $\alpha_2$ etex scaled labscal,rt );
+ angline( axc,auxx,black,angray,btex $\alpha_3$ etex scaled labscal,lft );
+ squareangline( -axa,auxx,black,0.2);
+ drawoptions( withpen pencircle scaled 1.7pt withcolor 0.65blue );
+ kindofcube( false, true, black, aa, ab, ac, lena, lenb, lenc );
+ drawoptions();
+ dotlabel.bot( btex $\vec{o}$ etex scaled labscal, zeror );
+ label.bot( btex $l_1$ etex scaled labscal, rp(lena*axb) );
+ label.bot( btex $l_2$ etex scaled labscal, rp(0.5*lenb*axc) );
+ label.ulft( btex $l_3$ etex scaled labscal,rp(0.5*lenc*ncrossprod(axb,axc)));
+endfig;
+
+verbatimtex
+\end{document}
+etex
+
+end.
+
+