import solids; size(6cm); currentprojection=orthographic(4,5,8); limits(O,X+Y+Z); xaxis3(Label("$(1,0,0)$",1),Arrow3); yaxis3(Label("$(0,1,0)$",1),Arrow3); zaxis3(Label("$(0,0,1)$",1),Arrow3); draw(unitcylinder,blue+opacity(.6),1bp+orange);