import solids;
settings.render=0; 
settings.prc=false; // on se restreint à une vue 2d

size(7.5cm,0);

currentprojection=orthographic(10,5,4);
dotfactor=3.5;

revolution b=sphere((0,0,0),3);

draw(b,1,longitudinalpen=nullpen);

for(int k=-2; k<5;++k) 
draw(rotate(k*30,(0,0,1))*rotate(-90,(1,0,0))*b,1,
     longitudinalpen=nullpen);

draw(b.silhouette(),black);
dot((0,0,0));

shipout(bbox(5mm,white));