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Curves

 

The simplest classes for geometries in GRAPE are for curves. The main class for curves is Triang1d, its entries consist of a sequence of points in three space. For this class a number of display methods exist which e.g. show the data as ordinary line or as a tube.

The subclass Bnd_Curve is used for curves whose points have a direct connection with the surface, e.g. for boundary curves of a surface patch. Still these curves can exist on their own because they have their own coordinate arrays. Curves of class Cons don't have their own coordinate arrays, therefore they always belong to a geometry.

Further curve representations are the classes Bezier1d and Spline1d. Currently they are only used by the FunctionRuler 9.1.3.10 and the SplineEditor 4.1.2.10.

Additionally to these static data structures there exist time dependent curves of class Time_Curve, they are described in sections 7.4.2 and 8.2.2.





SFB 256 Universität Bonn and IAM Universität Freiburg

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