Implementation of classes BSplCLib_Cache and BSplSLib_Cache is revised:
- Common functionality dealing with spans along one parametric direction is separated to new struct BSplCLib_CacheParams
- Empty constructors are removed; copying is prohibited
- Code reconsidering degree and other parameters on each call to BuildCache() is eliminated; curve parameters must be the same in constructor and all calls to BuildCache()
- Extra call to BuildCache() from constructor is eliminated
1. Disable recalculation of B-spline cache when the parameter is out of surface boundary but near the cached span.
2. Rebuild cache each time a curve/surface is loaded into adaptor (B-spline knots may be re-parametrized outside adaptor without changing base curve)
3. Test cases.
1. Remove cache from Geom_BezierCurve, Geom2d_BezierCurve and Geom_BezierSurface
2. Add cache for Bezier curves into GeomAdaptor_Curve, Geom2dAdaptor_Curve and GeomAdaptor_Surface
3. Update comments in corresponding cache classes
4. Avoid frequent down-casting to B-splines in adaptors
Forward declaration of TCollection instances as classes are replaced by inclusion of corresponding header.
Cyclic dependencies between declaration of collection class and its item are resolved by forward declaring a class in collection header.
1. B-spline cache was moved into separated classes: BSplCLib_Cache for 2D and 3D curves and BSplSLib_Cache for surfaces.
2. The cache is used now in corresponding adaptor classes (Geom2dAdaptor_Curve, GeomAdaptor_Curve and GeomAdaptor_Surface) when the curve or surface is a B-spline.
3. Algorithms were changed to use adaptors for B-spline calculations instead of curves or surfaces.
4. Precised calculation of derivatives of surface of revolution is implemented for the points of surface placed on the axis of revolution (Geom_SurfaceOfRevolution.cxx)
5. Small modifications are made to adjust algorithms to new behavior of B-spline calculation.
6. Test cases were modified according to the modern behavior.
7. Changes in BOPAlgo_WireSplitter, BOPTools_AlgoTools, BRepLib_CheckCurveOnSurface and ShapeAnalysis_Wire to use adaptors instead of geometric entities
8. Allow Geom2dAdaptor and GeomAdaptor in case of offset curve to use corresponding adaptor for basis curve
Modification of test-cases according to the new behavior.
