ChiNegative      1047 magick/geometry.c               flags^=ChiNegative;  /* negate sign */
ChiNegative      1055 magick/geometry.c               if ((flags & ChiNegative) != 0)
ChiNegative      1096 magick/geometry.c     (flags & ChiValue) ? ((flags & ChiNegative) ? "-Z" : "+Z") : "  ");