import grid3; size(10cm,0,IgnoreAspect); currentprojection=orthographic(0.25, 1, 0.25); limits((-2,-2,0), (0,2,2)); scale(Linear, Linear, Log(automax=false)); grid3(XZXgrid); grid3(XYXgrid); xaxis3(Label("$x$",position=EndPoint,align=S), Bounds(Min,Min), RightTicks3()); yaxis3(Label("$y$",position=EndPoint,align=S), Bounds(Min,Min), RightTicks3()); zaxis3(Label("$z$",position=EndPoint,align=(0,0.5)+W), Bounds(Min,Min), RightTicks3(beginlabel=false));