Abstract: The invention is a method and an apparatus for recording geometries as representations of objects, located using a coordinate system. A record is created that may be altered to change the locations of geometries with respect to the coordinate system and the record of the locations of other geometries is automatically changed so that the locations of the geometries first altered do not conflict with the locations of the other geometries. The invention accomplishes the objective by recording the locations of certain geometries (relative geometries) relative to the locations of certain other geometries (located geometries). The location of at least one locater geometry is designated. The location of the locator geometry is recorded in a datafile. The location of a relative geometry is designated relative to a previously located locater geometry.