Freeform Tools in CAD Systems: A Comparison

I Presentations of CAD Systems.- CATIA/IBM, Dassault.- Curve and Surface Representation in Catia System.- A Case for CAD.- Digitising Sculptured Surfaces.- ICEM / Control Data.- Representations and Operations in the ICEM Systems.- ICEM MESH — A Mesh Generation Tool for Free-Form Surfaces.- STRIM/cisigraph.- Practice of Computer Aided Geometric Design.- SYRKO/Merces Benz.- Car Body Design and Manufacturing with SYRKO.- UNIGRAPHICS/McDonnel Douglas.- Curves and Surfaces in Unigraphics and Parasolid.- EUCLID / Matra.- UNISURF IV — The advanced Solids & Surfaces Module of EUCLID-IS.- II Visualisation System.- WAVEFRONT — MENTAL RAY/mental images.- High Quality Visualization of CAD Data.- III Lectures on Developments for Interfaces.- The Development Methodology of STEP and its Concept for Shape Representation.- Integration of Physical “Phenomena” into CAD.- General Matrix Representation for NURBS Curves and Surfaces for Interfaces.- Approximate Conversion and Merging of Spline Surface Patches.- IV Questionnaire on Curve/Surface/Volume Implementations.- ANSWERS — Part I (EUCLID, STRIM, ICEM).- ANSWERS — Part II (UNIGRAPHICS, SYRKO, CATIA).- V Excerpts of the Panel Discussion.