0022560: Extrema redesign

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0022560

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[OCCT] OCCT:Modeling Algorithms

public

2011-06-01 13:54

2016-07-07 07:04

Reporter

szy

Assigned To

jgv

Priority

normal

Severity

feature

Status

assigned

Resolution

reopened

Platform

All

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Product Version

Target Version

Fixed in Version

Summary

0022560: Extrema redesign

Description

RLN_contribution.
Detailed description of fix 210:
    - Temporary modification: GeometryTest
fix210.0:
    - IntTools_BeanBeanIntersector:
        ComputeUsingExtrema() - take one of two GeomAdaptors out of cycle as it does
not change
    - Extrema
        - SquareDistance. Check TrimmedSqDistances !! Search Distance(), Magnitude()
inside Extrema
        - Point return const& and update callers (may add private copy constructor and
operator= to ensure update of all callers)
        - Loading and deferred perform
        - caching point calculation
        - Raise_if instead of ::Raise()
    - Updated callers: gce_MakeCirc, GC_MakeArcOfCircle, etc
fix210.1:
    - Extrema:
        - Replacement of all internal calculations with SquareDistance
fix210.2:
    - IntTools:
        - create adaptor only when needed but still once per UsingExtrema() call
fix210.3:
    - Extrema:
        - ExtCC, _GenExtCC, _GExtCC:
            - deferred perform, independent loading of curve, caching of points, etc
            - simplified code of GExtCC::Perform()
fix210.4:
    - Extrema:
        - _CurveCache and switching _GExtCC and _GenExtCC to its using for maximum
reuse of calculations
fix210.5:
    - Extrema:
        - cache of myDu and myDv in FuncExtCC

    - TODO (if needed):
        rename into SquareDistance() and LowerSquareDistance(), this may require
further updates downstream and update of documentation
        Geom2dAPI_*,
        GeomAPI_*,
        GeomFill_SectionPlacement
        BRepExtrema_DistShapeShape

=========================================
szy:
1. Extrema_FuncExtCC.cdl: added new fields - myDu, myDv
2. Extrema_FuncExtCC.gxx: replaced old fields by new fields of the class

Branch ==> OCC22560_ExtremaOptimizations

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0026269

assigned

aml

Open CASCADE

Extrema package revision

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Issue History
Date Modified	Username	Field	Change
2011-08-02 11:31	bugmaster	Category	OCCT:MOA => OCCT:Modeling Algorithms
2011-10-31 16:25	szy	Resolution	suspended => reopened
2011-10-31 16:25	szy	Fixed in Version	EMPTY =>
2011-10-31 16:25	szy	Description Updated	View Revisions
2011-10-31 16:26	szy	Assigned To	bugmaster => jgv
2011-10-31 16:26	szy	Status	acknowledged => assigned
2011-11-25 14:36	szy	Description Updated	View Revisions
2016-07-07 07:04	aml	Relationship added	related to 0026269