Geometric Constraint Solving And Applications

1 The Semantics Of Geometric Constraints.- The Role Of Constraints In Geometric Modelling.- Progress And Problems In Extending The Step Standard.- 2 Constraints For Conceptual And Collaborative Design.- Constraint Propagation Using An Active Semantic Network.- Analyzing And Optimizing Constraint Structures In Complex Parametric Cad Models.- Design Support Using Constraint-driven Design Spaces.- Solving Over- And Underconstrained Geometric Models.- A Constraint-based Shape Modeling System.- 3 Constraint Representation And Solving Methods.- Modelling Of Geometric Constraints In Cad-applications.- Geometric Constraint Decomposition.- Desargues: A Constraint-based System For 3d Projective Geometry.- Yams: A Multi Agent For 2d Constraint Solving.- Qualitative Study Of Geometric Constraints.- Geometric Relaxation For Solving Constraint-based Models.- 4 Constraints For Freeform Surfaces.- Variational Design And Surface Reconstruction.- Computer Aided Spectacle Lens Design.