Isometry

2 definitions found

From WordNet (r) 2.0 [wn]:

  isometry
       n 1: the growth rates in different parts of a growing organism
            are the same
       2: a one-to-one mapping of one metric space into another metric
          space that preserves the distances between each pair of
          points; "the isometries of the cube"


       3: equality of elevation above sea level
       4: equality of measure (e.g., equality of height above sea
          level or equality of loudness etc.)

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  isometry
       
           A {mapping} of a {metric space} onto another or
          onto itself so that the distance between any two points in the
          original space is the same as the distance between their
          images in the second space.  For example, any combination of
          rotation and translation is an isometry of the plane.
       
          (1997-12-13)