초록 ▼

A three-dimensional shape as a synthesis of three-dimensional geometry entities is controlled and displayed. The geometry entities are controlled in accordance with information defining the geometry entities, and layout information arranged in a three-dimensional space. An interface between graphic

A three-dimensional shape as a synthesis of three-dimensional geometry entities is controlled and displayed. The geometry entities are controlled in accordance with information defining the geometry entities, and layout information arranged in a three-dimensional space. An interface between graphic display apparatus using this graphic display method and an application system is practiced in that the transfer of the information on the geometry entities is carried out. The three-dimensional shape is divided into its geometry entities, and the display of an object having a three-dimensional shape is done as a synthesis of the geometry entities, the transfer of shape data being done separately for each geometry entity.

대표청구항 ▼

A graphic display method in a graphic display apparatus for performing geometric modeling functions by controlling graphic information, comprising the steps of: dividing a three-dimensional shape into a number of geometry entities and memorizing said geometry entities in advance; defining a given ob

A graphic display method in a graphic display apparatus for performing geometric modeling functions by controlling graphic information, comprising the steps of: dividing a three-dimensional shape into a number of geometry entities and memorizing said geometry entities in advance; defining a given object having a three-dimensional shape as a synthesis of said memorized geometry entities, said synthesis being obtained by moving and rotating said geometry entities using moving and rotating information; and displaying said defined three-dimensional shape; wherein a geometry entity is a combination of segment entities, plane entities, curved surface entities and solid entities; wherein said graphic display apparatus is provided with a modeling space which includes a three dimensional modeling coordinate system for modeling said three-dimensional shape and a geometry entity coordinate system for identifying a posture of said geometry entity in said modeling space in accordance with moving and rotating information of said geometry entity; wherein said graphic display apparatus independently performs graphic functions on said geometry entity coordinate system and said three dimensional modeling coordinate system; wherein said indicating a location of said geometry entity coordinate system in said three-dimensional modeling coordinate system and data for fixing said three dimensional modeling coordinate system in said modeling space are stored separately from each other in memory; wherein said graphic display apparatus independently modifies said data for indicating a location of said geometry entity coordinate system and said data for fixing said three dimensional modeling coordinate system; and wherein said graphic display apparatus independently supplies said moving information and said rotating information to said defining step.