#
# An object that has three projections of a cross, circle and a square.
#

w = 0.4;
Cross = ctlpt( E3, 1,  0, 0 ) +
	ctlpt( E3, 1,  w, 0 ) +
	ctlpt( E3, w,  w, 0 ) +
	ctlpt( E3, w,  1, 0 ) +
	ctlpt( E3, 0,  1, 0 );
free( w );

Cross = Cross +
	Cross * rz( 90 ) +
	Cross * rz( 180 ) +
	Cross * rz( 270 );


s1 = extrude( Cross * tz( -2 ), vector( 0, 0, 4 ), 0 );
free( Cross );

s2 = extrude( circle( vector( 0, 0, 0 ), 0.999 ) * tz( -2 ),
	      vector( 0, 0, 4 ), 0 ) * rx( 90 );

s = s1 * s2;
free( s1 );
free( s2 );

view( list( axes, s ), 1 );
save( "crosplug", s );

free( s );