PNT2AFM
r = PNT2AFM(p, su->scale * 72.0 / 10.0);
r = PNT2AFM(p, su->scale * 72.0 / 2.54);
r = PNT2AFM(p, su->scale * 72.0);
r = PNT2AFM(p, su->scale * 12.0);
r = PNT2AFM(p, su->scale * 1.0);
pagex = PNT2AFM(p, ((double)pagex * 72.0 / 25.4));
pagey = PNT2AFM(p, ((double)pagey * 72.0 / 25.4));
lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));