DESIGN SYSTEM APPLYING CAD USING TOPOLOGY TO BE LINKED TO OBJECT DATABASE

摘要

PROBLEM TO BE SOLVED: To improve efficiency about the design calculation/plotting jobs by using a CAD where an object database of geographical graphic information necessary for a road/creation basic design job incidental to the location re- planning of streets is linked to a topology database showing the phase relation between graphic forms.;SOLUTION: In this design system applying a CAD having a topology database which shows the phase relation between graphic forms, the nodes are set at a crossing part and a longitudinal change part of roads about the geographical graphic information which are necessary for a road basic design job and each of graphic forms existing between the nodes and the additional information are stored in an object database.;COPYRIGHT: (C)2002,JPO