System and methods of civil engineering objects model

Details System and methods of civil engineering objects model System and methods of civil engineering objects model

2007-01-19

2010-11-09

Tung, Kee M (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S420000

Reexamination Certificate

active

07830373

ABSTRACT:
The invention relates to a computer implemented civil engineering objects system and methods for defining and representing three-dimensional civil engineering design components. The types of civil engineering objects comprise spot object, linear object and surface object. Each type of civil engineering objects are further classified as various categories based on their geometric and engineering similarities. Each civil engineering object comprises positioning geometry data for defining its spatial positioning in a Cartesian coordinates system, relative parametric perimeters data for defining its three-dimensional outline geometry relating to its positioning geometry, and relative parametric model means for calculating its spatial coordinates and geometric features from its positioning geometry data and relative parametric perimeters data according to its predefined relative parametric model. The relative parametric models are established per each civil engineering object category, and are predefined for all civil engineering object categories. The relative parametric model of a surface object comprises a ruled surface and relative parametric sections along its mesh lines.

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