import graph_pi;

graphicrules(xunit=2cm, yunit=1.5cm, xmin=-3, xmax=2, ymin=-2, ymax=2);
add(millimeterpaper(pic=currentpicture, O=(0,0),
                    xmin=-2.5, xmax=1.5,
                    ymin=-1.5, ymax=1.5,
                    p=3bp+orange),
    (0,0));
cartesianaxis();
labelx(Label("$1$",UnFill), 1);
labely(Label("$1$",UnFill), 1);
labelx("$O$",0,SW);
dot((0,0));