Macros ending on "DEB" are replaced by OCCT_DEBUG across OCCT code; new macros described in documentation.
Macros starting with DEB are changed to start with "OCCT_DEBUG_".
Some code cleaned.
Changed "value" function behavior in Extrema/Extrema_GlobOptFuncCS.cxx. Now it compute square distance between point on curve and point on surface.
Fixed description in Extrema_GlobOptFuncCC.
The patch changes the algorithm of choosing the initial approximation for Newton's method. Instead of searching for a point on the fine shifted grid, the algorithm performs initial search for candidate points in the original coarse grid (which is cached in new version). After that particle swarm optimization (PSO) is used to localize the global minimum. This algorithm optimizes a problem by having a population of candidate solutions ("particles"), and moving these particles around in the search-space according to simple mathematical formula over the particle's position and velocity. Each particle's movement is influenced by its local best known position but, is also guided toward the best known positions in the search-space, which are updated as better positions are found by other particles. This strategy has reported good results in solving complex global optimization problems.
Current patch implements initial version of PSO for using in Extrema_GenExtCS class. Typically new approach allows to reduce the number of evaluations by 5-10 times. There are only few cases there the numbers of evaluations are comparable.
Consider angular tolerance during calculation of angle between two vectors for protection against deviations that are significantly less than tolerance.
Simplified code to reduce number of comparison
Added QA command OCC24945 and test case bugs/moddata_3/bug24945
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.
1) Generic class "GccEnt_QualifiedCurv" from "GccEnt" package converted to the non-generic class and moved to the "Geom2dGcc" package. Name of this class was changed to "Geom2dGcc_QCurve".
2) Generic classes "HatchGen_ElementGen", "HatchGen_ElementsGen", "HatchGen_HatchingGen" and "HatchGen_Hatcher" from "HatchGen" package converted to the non-generic classes and moved to the "Geom2dHatch" package. Names of this classes were changed to "Geom2dHatch_Element", "Geom2dHatch_Elements", "Geom2dHatch_Hatching" and "Geom2dHatch_Hatcher". Also all instantiations of the "internal" classes of this classes were moved to the "Geom2dHatch.cdl".
3) Generic classes "Extrema_GExtCC", "Extrema_GExtCC2d", "Extrema_GLocateExtCC" and "Extrema_GLocateExtCC2d" from "Extrema" package converted to the non-generic classes. Names of this classes were changed to "Extrema_ExtCC", "Extrema_ExtCC2d", "Extrema_LocateExtCC" and "Extrema_LocateExtCC2d". Also all instantiations of the "internal" classes of this classes were moved to the "Extrema.cdl".
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.
Main problem:
Algorithm of locale extrema, which is called by "sameparameter" command, cannot find extrema because extremal point is far from initial point. Therefore, reparametrization of edge's curve (for same-parameter) cannot be made properly.
Solve:
Using of global extrema (see Approx_SameParameter.cxx).
As the given edge contains two 2d-curves and the second from them is problem, for select needed curve, an interface of "mk2dcurve" DRAW-command is changed. Now there can be used an index of curve (by default, index = 1, as earlier), see help for more detail information.
Test "heal advanced Z3":
Now checkshape finds only two invalid subshapes. Earlier, it found four subshapes. I think it is not regression. Therefore, test case was changed.
Tolerance reducing.
test
When warnings are enabled, compilers report lots of occurrences
of unused local variables, which makes it harder to find other
meaningful warnings.
This commit does not fix all unused local variables.
Fix new type conversion warning
Code cleaned to avoid MSVC compiler warnings on unused function arguments.
Several useless pieces of code are removed.
Changes in IntTools_EdgeFace.cxx, Blend_Walking_1.gxx, Bnd_BoundSortBox.cxx, ProjLib_ProjectedCurve.cxx are reverted (separated to specific issue for more in-depth analysis).
Eliminated ICC 14 warnings:
# 82: storage class is not first (e.g. "int static f()"
# 2621: attribute "dllexport" does not apply here (e.g. "Standard_EXPORT typedef int qqint;")
# 2415: variable "..." of static storage duration was declared but never referenced
# 111: statement is unreachable (usually "break" after "return" in cycles)
changed number of nodes in case of GeomAbs_Line in Extrema_GExtCC::Perform() function.
changed number of nodes in case of GeomAbs_Line in Extrema_GExtCC::Perform().
fixed incorrect indexes and Coeff check in Extrema_CurveCache::Extrema_CurveCache added to avoid int overflow.
Added test case bugs/modalg_5/bug24200
Added check if (aNbS[i] * Coeff[i]) too big in Extrema_GExtCC::Perform().
Tolerance of checking distance between vertex and edge in BOPInt_Context::ComputeVE() increased by additional Precision::Confusion() to allow for interference to be detected in this particular case.
Two tests added for this issue: one with original shapes and another in rotated co-ordinates
Elimination of compiler warnings
- ExprIntrp: generated file ExprIntrp.tab.c and related WOK scripts removed from the sources
- ExprIntrp, StepFile: added missing declarations and casts; warnings caused by Flex and Bison code suppressed for MSVC compuler by #pragma
- OSD: dummy #includes added to files containing no code for Windows, to avoid warning on empty file
- PLib: piece of code contained in PLib_ChangeDim.gxx included explicitly in cxx and cleaned
- Other places: some casts added to avoid warnings
Removing pPotentially uninitialized local variable
Got rid of most of warnings C4701: Potentially uninitialized local variable
Removed redundant variable definitions.
Refactored a part of AppParCurves_ResolConstraint CTOR.
Replaced 0. to Precision::Confusion for tolerance vars;
Changed values for min and max parameter vars;
Got rid of redundant variables' initialization.
Fix first subset of warnings (about 100)
- while(1) and similar constructs replaced by for(;;)
- some uninitialized variables corrected
Got rid of Warning C4189: local variable is initialised but not referenced
Corrected mistakes after getting rid of C4189 compiler warning
Corrected some mistakes that led to compiling errors
Fixed test case because of improvement message - removed unnecessary TODO.
Small fix: tabs have been replaced with whitespaces.
Added TODO for Windows platform
removed last TODO
Corrected mistakes, returned some #ifdef DEB code, fixed test case .
Restoring a few places which have been modified too much
Small grammar fix
Deleted unnecessary puts in bugs/end
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
Data member myIsDivergent was added to class math_FunctionSetRoot.
The member is initialized in method Perform start by Standard_False. The member is changed in the method to Standard_True if an approximation point is located outside of search set.
Method IsDivergent was added to class math_FunctionSetRoot.
The method returns value of myIsDivergent.
Parameter theStopOnDivergent with default value Standard_False was added to
a constructor and method Perform of class math_FunctionSetRoot.
The parameter shows whether return from method Perform if myIsDivergent
became Standard_True.
Class Extrema_GenExtCS was optimized for dynamic memory consumption:
the class surface values are not stored now.
Method Perform of class Extrema_GenExtCS was improved for local extreme
search in case of iteration algorithm divergence. Size of the algorithm
grid cell for initial approximation is reduced by 2 in the case. The count
of the reduces is limited.
Build fix in *.cdl.
Case of extrusion was carried out of the repeat loop.
Division method of the 3-dimensional grid (curve param, surface first
param, surface second param) by two was replaced by method of moving the
grid.
The moving method is about two times faster than division method.
Now grid moving method is depending on some average linear sizes of the curve and the surface.
In case (theStopOnDivergent && myIsDivergent) method math_FunctionSetRoot::Perform sets Done to Standard_False and discard it's last solution.
Test case for the bug fix.
Test case correction
Initial approximation was corrected for search of maximum in Extrema_GenExtCS::Perform.
Test case bugs moddata_3 bug23830 was formatted.
