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Modeling Data - Refactor Geom_OsculatingSurface (#1468)

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- Replace sequence storage with linear vectors and paired orientation data.
- Reuse GeomAdaptor_Surface for EvalD1-based quasi-punctual checks.
- Use LocalArray-backed buffers with At()/ChangeAt() access.
- Sample geometry-driven intervals without fixed floating-point loops.
- Preserve initialization failure cleanup with RAII.
This commit is contained in:
Pasukhin Dmitry
2026-08-15 20:51:37 +01:00
committed by GitHub
parent 4c8d3df98d
commit 4719d5fa98
2 changed files with 566 additions and 680 deletions
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src/ModelingData/TKG3d/Geom/Geom_OsculatingSurface.cxx
+526 -662
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src/ModelingData/TKG3d/Geom/Geom_OsculatingSurface.pxx
+40 -18
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@@ -19,15 +19,14 @@
#include <GeomAbs_IsoType.hxx>
#include <Geom_BSplineSurface.hxx>
#include <NCollection_Sequence.hxx>
#include <Standard_Integer.hxx>
#include <Standard_Real.hxx>
#include <NCollection_Array1.hxx>
#include <NCollection_LinearVector.hxx>
#include <array>
#include <cstddef>
class Geom_Surface;
class Geom_BSplineSurface;
class GeomAdaptor_Surface;
//! Internal helper class for Geom_OffsetSurface.
//! Detects if the surface has punctual U or V isoparametric curve
@@ -110,23 +109,46 @@ private:
const occ::handle<Geom_BSplineSurface>& theBS,
occ::handle<Geom_BSplineSurface>& theL) const;
//! Returns true if the isoparametric is quasi-punctual.
bool isQPunctual(const occ::handle<Geom_Surface>& theS,
double theParam,
GeomAbs_IsoType theIT,
double theTolMin,
double theTolMax) const;
//! Iteratively reduce an iso until the result is no longer quasi-punctual.
//! @param[in] theInitSurf starting surface for this knot span
//! @param[in] theParam parameter of the degenerate iso
//! @param[in] theIso direction of the degenerate iso
//! @param[in] theInitUKnot initial U-knot index
//! @param[in] theInitVKnot initial V-knot index
//! @param[out] theSurface final reduced surface
//! @param[out] theNbReductions number of reductions performed
//! @return false if a reduction cannot be built
bool reduceAlongIso(const occ::handle<Geom_BSplineSurface>& theInitSurf,
double theParam,
GeomAbs_IsoType theIso,
int theInitUKnot,
int theInitVKnot,
occ::handle<Geom_BSplineSurface>& theSurface,
size_t& theNbReductions) const;
//! Clear osculating flags.
void clearOsculFlags();
//! Returns true if the isoparametric is quasi-punctual.
bool isQPunctual(const GeomAdaptor_Surface& theAdaptor,
double theParam,
GeomAbs_IsoType theIT,
double theTolMin,
double theTolMax) const;
struct OsculatingSurfaceData
{
occ::handle<Geom_BSplineSurface> Surface;
bool IsOpposite = false;
};
//! Append a second osculating surface and its derivative orientation.
void appendOsculatingSurface2(const occ::handle<Geom_BSplineSurface>& theSurface,
size_t theNbReductions);
private:
occ::handle<Geom_Surface> myBasisSurf;
double myTol;
NCollection_Sequence<occ::handle<Geom_BSplineSurface>> myOsculSurf1;
NCollection_Sequence<occ::handle<Geom_BSplineSurface>> myOsculSurf2;
NCollection_Sequence<int> myKdeg;
std::array<bool, 4> myAlong;
occ::handle<Geom_Surface> myBasisSurf;
double myTol;
NCollection_LinearVector<occ::handle<Geom_BSplineSurface>> myOsculSurf1;
NCollection_LinearVector<OsculatingSurfaceData> myOsculSurf2;
std::array<bool, 4> myAlong;
};
#endif // _Geom_OsculatingSurface_HeaderFile