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+% spatialhalfsfear.mp
+% L. Nobre G.
+% 2004
+
+input featpost3Dplus2D;
+
+f := (3,-0.2,3);
+beginfig(1);
+ spatialhalfsfear( black, blue, 1 );
+ drawoptions( withpen pencircle scaled 3pt withcolor (blue+green) );
+ spatialhalfsfear( black, blue+green, 0.8 );
+ drawoptions( withpen pencircle scaled 3pt withcolor red );
+ spatialhalfsfear( black, red, 0.6 );
+ drawoptions( withpen pencircle scaled 3pt withcolor green );
+ spatialhalfsfear( black, green, 0.7 );
+endfig;
+end.