By Pierre Moreau, Olivier Bellart (auth.), Prof. Dr. rer. nat. Josef Hoschek (eds.)
ISBN-10: 3322867730
ISBN-13: 9783322867735
ISBN-10: 3322867749
ISBN-13: 9783322867742
Read Online or Download Freeform Tools in CAD Systems: A Comparison PDF
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Additional info for Freeform Tools in CAD Systems: A Comparison
Example text
When these are restricted to the few standard parts, customer or company parts, then CAD has lost its competitive edge. In the race for efficiency, repeated parts are of little advantage any more. The time has come to utilize today's aids offered by CAD, data-bases and expert systems. Hella has a fairly homogeneous CAD-system environment which put it into a good starting position to raise efficiency and quality even further. The synergy of development and manufacture allow it to rationalize information flow further.
2 Adjacency Generator The general concept of the module is to use the boundary curves which are defined to be geometric curves with geometric points as their end points. The geometric points are projected onto the geometric curves. The curves are divided at the projected points to create geometric curve segments. At the end of the projection process the geometric points and the geometric curves segments which are "close" according to given criteria are assumed to be the same, thus defining topological points and topological curves.
If the profiles are different at the different points d(ti) the profiles have to be blended together. Intermediate profiles are - 57 - profile planes are parallel to a main plane, e. g. HZ-plane: Z H Giuen: Result: Driue Curue C t, Profile Curues C2, C3 with 3 segments Profile Planes Et, E2 / / XZ-plane Surface ft figure 2: Generating a "Profile Surface" computed in 2D-space and attached to the drive curve to be used in an approximative way. The most common mappings f are the following: - 58 - I.
Freeform Tools in CAD Systems: A Comparison by Pierre Moreau, Olivier Bellart (auth.), Prof. Dr. rer. nat. Josef Hoschek (eds.)
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