GRAPHICAL OBJECTS HAVING ORIGINS DEFINED WITH ELASTICITY

摘要

To process the layout of graphical objects, elastic data structures are established for the graphical objects to define minimum and preferred sizes, stretch properties and compression properties. Composite graphical objects include elastic properties computed from their components through add and ma x operations which are dependent on relative elasticities of the components. T he positions of origins within graphical objects are defined by pairs of elasti cs in each of two dimensions. The default width or height preference of a graph ic object can be overridden. Overriding elastics is an effective mechanism for altering the display characteristics of graphical objects while preserving certain display relationships.