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mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-04 18:06:22 +03:00

6 Commits

Author SHA1 Message Date
aml
1907fb9a74 0027131: [Regression to 6.7] DistShapeShape performance loss
Lipchitz constant approximation and fixes in global optimization algorithm added to improve performance.
Test case added.

Possibility to freeze Lipchitz constant is added to improve performance.
2016-02-20 10:10:05 +03:00
aml
91806b90d4 0026022: Extrema_ExtCC gives not precise solution
Conditional optimization added to Newton optimization algorithm.
Test case for issue CR26022
2015-05-28 13:45:38 +03:00
aml
3f733bb126 0025708: GeomAPI_ExtremaCurveCurve does not return all intersection points in 6.8.0
Added expanding coefficients between neighboring indexes, changed local optimization starting condition.

Test case for issue CR25708
2015-02-05 16:03:36 +03:00
aml
2fe0e897e3 0024946: Wrong result obtained by Extrema Curve/Curve
Fixes in Extrema Curve/Curve algorithm and in corresponding testcase.
Added test case bugs/modalg_5/bug24946
2014-05-29 16:23:18 +04:00
aml
4bbaf12b67 0024608: Development of methods of global optimization of multivariable function
math_GlobOptMin - new global optimization minimization algorithm
Extrema_GlobOptFuncCC, Extrema_ExtCC, Extrema_ExtCC2d - implementation of GlobOptMin algorithm to extrema curve / curve
Extrema_CurveCache - deleted as obsolete code
ChFi3d_Builder.cxx  - fixed processing of extrema
math_NewtonMinimum.cxx - fixed step to avoid incorrect behavior
Test cases modification to meet new behavior.
2014-05-15 17:51:44 +04:00
nbv
32ca7a5106 0023706: Cannot project point on curve
1.   Approximation of derivative (by Taylor-series and by three points).
2.   Some methods (Degree(), GetType(), D0(), D3(), DN()) are added.
3.   Getting of subInterval's boundaries.
4.   Algorithm for checking if 1st derivative is equal to zero is amended.
5.   Cases are controlled when extrema or Project point do not exist.
6.   GetNormal() function for gp_Vec2d was added.
7.   Computing of Value, D0, D1, D2 and D3 for offset curves was changed.
8.   Limitation of tolerance for derivative computing was added.
9.   Methods for computing trihedron in singularity point are added.
10. Test tests/bugs/moddata_3/bug23706 is added.
11. Restriction on the LastParameter for visualization of 3-D curves. Calling PlotCurve(...) function for last interval.
12. LProp package is modified for tangent computing in singularity point (LProp_CLProps, LProp_SLProps).
13. Added test cases for issue.
Deleting bad test cases for this fix
2013-06-13 15:12:06 +04:00