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The spline interface is low-level functionality that models complex curves, surfaces, and surface intersections using B-splines. It contains utilities for construction and manipulation of NURBS curves and surfaces which appear in
ACIS as interpolated curves (intcurve class) and spline surfaces (spline class). A
spline is a specific subclass of
surface.
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The spline interface functions form a subset of the Direct Interface (DI) functions. The spline functions are implemented in the
Kernel Component (KERN), and have names that begin with the following strings:
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bs2_curve*
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Operate on 2D B-spline curves.
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bs3_curve*
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Operate on 3D B-spline curves.
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bs3_surface*
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Operate on 3D B-spline surfaces.
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