authors 
Sohrt, W. and Bruderlin, B.D. 
year 
1991 
title 
Interaction with Constraints in 3D Modeling 
source 
Proceedings of ACM/SIGGRAPH Symposium on Solid Modeling and CADCAM Applications, Austin, TX 
summary 
The purpose of our research is to simplify and improve the effectiveness of the interactive definition of geometric objects in computer aided geometric modeling. To achieve this goal, two ways of defining geometric objects are combined and interfaced 1) the definition of objects by graphical interaction and 2) the specification of objects by geometric constraints. To demonstrate the practicability of the proposed approach, a geometric modeling system was implemented. In this system, interactive modeling operations automatically generate constraints to maintain the properties intended by their invocatio~ and constraints, in turn, determine the degrees of freedom for further int eractive mousecontrolled modeling operations. A symbolic geometric constraint solver is employed for solvings ystems of constraints. Group hierarchies are utilized for representing dependencies and for locfllzing systems of constraints. 
series 
other 
full text 
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last changed 
2003/04/23 13:50 
