A signposting and orientation technology is presented. This technology
employs signposts superimposed on map images in order to convey otherwise
undisplayable information on a map image. With signposting, zoomed-in
maps can convey relationships between items on the map image, even though
some of those item are not directly displayed on the map images. For
example, a signpost can convey the distance between an anchoring object
of reference and an item that is some distance and direction away from
the object. Any relationships between objects and/or items can be
dynamically maintained even though both the objects and item are moving
about a map image. Additionally, orientation marks can be used in
conjunction with signposts to orient users of the technology. Orientation
marks may employ directional vectors, beginning at with the object of
reference and ending with the orientation mark, whether the mark is
celestial in nature or otherwise.