mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
synced 2026-07-06 17:12:00 +08:00
0024208: Optimization of the edge-edge and edge-face intersection algorithms
New Edge/Edge intersection algorithm (based on the intersection between edges bounding boxes). Small correction.
This commit is contained in:
emv
@@ -1,6 +1,5 @@
|
||||
-- Created on: 2000-10-26
|
||||
-- Created by: Peter KURNEV
|
||||
-- Copyright (c) 2000-2014 OPEN CASCADE SAS
|
||||
-- Created by: Eugeny MALTCHIKOV
|
||||
-- Copyright (c) 2014 OPEN CASCADE SAS
|
||||
--
|
||||
-- This file is part of Open CASCADE Technology software library.
|
||||
--
|
||||
@@ -14,298 +13,221 @@
|
||||
-- commercial license or contractual agreement.
|
||||
|
||||
class EdgeEdge from IntTools
|
||||
---Purpose:
|
||||
-- The class provides Edge/Edge intersection algorithm
|
||||
-- based on the intersection between edges bounding boxes.
|
||||
|
||||
---Purpose: The class provides Edge/Edge algorithm to determine
|
||||
-- common parts between two edges in 3-d space.
|
||||
-- Common parts can be : Vertices or Edges.
|
||||
---
|
||||
uses
|
||||
Edge from TopoDS,
|
||||
Curve from BRepAdaptor,
|
||||
SequenceOfRoots from IntTools,
|
||||
SequenceOfRanges from IntTools,
|
||||
CArray1OfReal from IntTools,
|
||||
CommonPrt from IntTools,
|
||||
SequenceOfCommonPrts from IntTools,
|
||||
Range from IntTools
|
||||
--raises
|
||||
|
||||
is
|
||||
Create
|
||||
returns EdgeEdge from IntTools;
|
||||
---Purpose:
|
||||
--- Empty constructor
|
||||
---
|
||||
|
||||
SetEdge1 (me:out;
|
||||
anEdge:Edge from TopoDS);
|
||||
---Purpose:
|
||||
--- Sets the first edge
|
||||
---
|
||||
|
||||
SetTolerance1 (me:out;
|
||||
aTolEdge1:Real from Standard);
|
||||
---Purpose:
|
||||
--- Sets the value of tolerance pipe for the first edge
|
||||
---
|
||||
uses
|
||||
Real from Standard,
|
||||
Box from Bnd,
|
||||
Range from IntTools,
|
||||
Edge from TopoDS,
|
||||
Curve from Geom,
|
||||
Curve from BRepAdaptor,
|
||||
ShapeEnum from TopAbs,
|
||||
SequenceOfRanges from IntTools,
|
||||
SequenceOfCommonPrts from IntTools
|
||||
|
||||
SetEdge2 (me:out;
|
||||
anEdge:Edge from TopoDS);
|
||||
---Purpose:
|
||||
--- Sets the second edge
|
||||
---
|
||||
is
|
||||
|
||||
Create
|
||||
returns EdgeEdge from IntTools;
|
||||
---C++: alias "~IntTools_EdgeEdge();"
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Empty contructor
|
||||
|
||||
SetTolerance2 (me:out;
|
||||
aTolEdge2:Real from Standard);
|
||||
---Purpose:
|
||||
--- Sets the value of tolerance pipe for the first edge
|
||||
---
|
||||
|
||||
SetDiscretize (me:out;
|
||||
aDiscret:Integer from Standard);
|
||||
---Purpose:
|
||||
--- Sets the number of division for the shortest
|
||||
--- edge among the two. The deflection is not taken
|
||||
--- into account
|
||||
---
|
||||
|
||||
SetDeflection (me:out;
|
||||
aDeflection:Real from Standard);
|
||||
---Purpose:
|
||||
--- Sets the value of maximum reative deflection between
|
||||
--- the two nearest points on a curve.
|
||||
---
|
||||
|
||||
SetEpsilonT (me:out;
|
||||
anEpsT:Real from Standard);
|
||||
---Purpose:
|
||||
--- Sets the criteria of equality of two arguments,
|
||||
--- i.e. |t2-t1|<anEpsT will mean that t2=t1
|
||||
---
|
||||
|
||||
SetEpsilonNull (me:out;
|
||||
anEpsNull:Real from Standard);
|
||||
---Purpose:
|
||||
--- Sets the criteria of equality of two functions' values
|
||||
--- i.e. |f(t2)-f(t1)|<anEpsNull will mean that f(t2)=f(t1)
|
||||
---
|
||||
|
||||
SetRange1 (me:out;
|
||||
aRange:Range from IntTools);
|
||||
|
||||
SetRange2 (me:out;
|
||||
aRange:Range from IntTools);
|
||||
|
||||
SetRange1 (me:out;
|
||||
aFirst, aLast:Real from Standard);
|
||||
|
||||
SetRange2 (me:out;
|
||||
aFirst, aLast:Real from Standard);
|
||||
|
||||
Perform(me:out);
|
||||
---Purpose:
|
||||
--- The main method of the algorithm to determine
|
||||
--- common parts between two edges in 3-d space
|
||||
---
|
||||
|
||||
IsDone (me)
|
||||
returns Boolean from Standard;
|
||||
---Purpose:
|
||||
--- True if the common parts are found
|
||||
---
|
||||
|
||||
Order (me)
|
||||
returns Boolean from Standard;
|
||||
---Purpose:
|
||||
--- False if the common parts are coherented with Edge1, Edge2
|
||||
---
|
||||
|
||||
ErrorStatus(me)
|
||||
returns Integer from Standard;
|
||||
---Purpose: Returns the number that corresponds to the error.
|
||||
--- The list of error-codes is in ...cxx file
|
||||
---
|
||||
|
||||
CommonParts(me)
|
||||
returns SequenceOfCommonPrts from IntTools;
|
||||
---C++: return const&
|
||||
---Purpose:
|
||||
--- Returns the common parts (Output)
|
||||
---
|
||||
|
||||
Range1 (me)
|
||||
returns Range from IntTools;
|
||||
---C++: return const&
|
||||
|
||||
Range2 (me)
|
||||
returns Range from IntTools;
|
||||
---C++: return const&
|
||||
|
||||
-----------------------------------------------------
|
||||
-- Block of protected methods of the algorithm --
|
||||
-----------------------------------------------------
|
||||
|
||||
CheckData (me:out)
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Fool-proof chechking the input data.
|
||||
--- The following data is not available
|
||||
--- * Degenerated edges is not available;
|
||||
--- * Egdes, that don't contain 3d-curve.
|
||||
---
|
||||
|
||||
Prepare (me:out)
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Preparing the main fields for the algorithm
|
||||
--- * From-Curve (myCFrom,myTminFrom,myTmaxFrom),
|
||||
--- * To -Curve (myCTo ,myTminTo ,myTmaxTo ),
|
||||
--- * myCreiteria=myTol1+myTol2 ,
|
||||
--- * myProjectableRanges.
|
||||
---
|
||||
|
||||
IsProjectable (me;
|
||||
t:Real from Standard)
|
||||
returns Integer from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Returns the flag 1 if it is possible to project
|
||||
--- the point from the From-Curve at the parameter t
|
||||
--- to the To-Curve.
|
||||
--- Othrwise it returns 0.
|
||||
---
|
||||
FindRangeOnCurve2 (me:out;
|
||||
aCP:out CommonPrt from IntTools)
|
||||
returns Integer from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Find the range on the curve Curve-To that corresponds
|
||||
--- to the given range on the curve Curve-From.
|
||||
---
|
||||
|
||||
GetParameterOnCurve2 (me;
|
||||
aT1:Real from Standard;
|
||||
aT2:out Real from Standard)
|
||||
returns Integer from Standard
|
||||
is protected ;
|
||||
---Purpose:
|
||||
--- Find the value of the parameter on the curve Curve-To
|
||||
--- that corresponds to the given parameter on the curve
|
||||
--- Curve-From.
|
||||
---
|
||||
|
||||
TreatVertexType(me:out;
|
||||
am1, am2:Real from Standard;
|
||||
aCP:out CommonPrt from IntTools)
|
||||
returns Integer from Standard
|
||||
is protected;
|
||||
|
||||
IsIntersection (me:out;
|
||||
t1 : Real from Standard;
|
||||
t2 : Real from Standard)
|
||||
is protected ;
|
||||
|
||||
|
||||
FindDerivativeRoot (me:out;
|
||||
t,f:CArray1OfReal from IntTools)
|
||||
is protected;
|
||||
|
||||
FindSimpleRoot (me:out;
|
||||
IP:Integer from Standard;
|
||||
ta, tb, fA:Real from Standard)
|
||||
returns Real from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Find the Root of the function on given interval
|
||||
--- of the argument [ta,tb] using bisection method .
|
||||
--- IP - a flag;
|
||||
--- =1 - use DistanceFunction;
|
||||
--- =2 - use DerivativeFunction;
|
||||
---
|
||||
|
||||
DistanceFunction (me:out;
|
||||
t:Real from Standard)
|
||||
returns Real from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Calculates the DistanceFunction D(t).
|
||||
--- D(t)=D1(t) - myCriteria;
|
||||
--- where
|
||||
--- D1(t) - the lower distance between a point from
|
||||
--- the From-Curve at parameter t and
|
||||
--- projection point of this point on To-Curve;
|
||||
--- myCriteria=myTol1+myTol2.
|
||||
---
|
||||
|
||||
DerivativeFunction (me:out;
|
||||
t:Real from Standard)
|
||||
returns Real from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
--- Calculates the first derivative of
|
||||
--- the DistanceFunction D(t).
|
||||
---
|
||||
|
||||
CheckTouch(me: out;
|
||||
aCP: CommonPrt from IntTools;
|
||||
t1 : out Real from Standard;
|
||||
t2 : out Real from Standard)
|
||||
returns Boolean from Standard
|
||||
is protected;
|
||||
|
||||
CheckTouchVertex(me;
|
||||
aCP: CommonPrt from IntTools;
|
||||
t1 : out Real from Standard;
|
||||
t2 : out Real from Standard)
|
||||
returns Boolean from Standard
|
||||
is protected;
|
||||
|
||||
Create (
|
||||
theEdge1 : Edge from TopoDS;
|
||||
theEdge2 : Edge from TopoDS)
|
||||
returns EdgeEdge from IntTools;
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Contructor
|
||||
|
||||
ComputeLineLine(me:out)
|
||||
is protected;
|
||||
|
||||
--modified by NIZNHY-PKV Mon Oct 31 12:16:55 2011f
|
||||
IsSameCurves(me:out)
|
||||
returns Boolean from Standard
|
||||
is protected;
|
||||
--modified by NIZNHY-PKV Mon Oct 31 12:16:59 2011t
|
||||
|
||||
fields
|
||||
-- Data
|
||||
myEdge1 : Edge from TopoDS;
|
||||
myEdge2 : Edge from TopoDS;
|
||||
myTol1 : Real from Standard;
|
||||
myTol2 : Real from Standard;
|
||||
|
||||
myDiscret : Integer from Standard;
|
||||
|
||||
myEpsT : Real from Standard;
|
||||
myEpsNull : Real from Standard;
|
||||
myDeflection : Real from Standard;
|
||||
|
||||
-- data curves
|
||||
myCFrom : Curve from BRepAdaptor;
|
||||
myTminFrom : Real from Standard;
|
||||
myTmaxFrom : Real from Standard;
|
||||
myTolFrom : Real from Standard;
|
||||
Create (
|
||||
theEdge1 : Edge from TopoDS;
|
||||
aT11, aT12 : Real from Standard;
|
||||
theEdge2 : Edge from TopoDS;
|
||||
aT21, aT22 : Real from Standard)
|
||||
returns EdgeEdge from IntTools;
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Contructor
|
||||
|
||||
SetEdge1(me:out;
|
||||
theEdge : Edge from TopoDS);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the first edge
|
||||
|
||||
SetEdge1(me:out;
|
||||
theEdge : Edge from TopoDS;
|
||||
aT1, aT2 : Real from Standard);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the first edge and its range
|
||||
|
||||
SetRange1(me:out;
|
||||
theRange1 : Range from IntTools);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the range for the first edge
|
||||
|
||||
SetRange1(me:out;
|
||||
aT1, aT2 : Real from Standard);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the range for the first edge
|
||||
|
||||
SetEdge2(me:out;
|
||||
theEdge : Edge from TopoDS);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the second edge
|
||||
|
||||
myCTo : Curve from BRepAdaptor;
|
||||
myTminTo : Real from Standard;
|
||||
myTmaxTo : Real from Standard;
|
||||
myTolTo : Real from Standard;
|
||||
|
||||
myCriteria : Real from Standard;
|
||||
SetEdge2(me:out;
|
||||
theEdge : Edge from TopoDS;
|
||||
aT1, aT2 : Real from Standard);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the first edge and its range
|
||||
|
||||
SetRange2(me:out;
|
||||
theRange : Range from IntTools);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the range for the second edge
|
||||
|
||||
SetRange2(me:out;
|
||||
aT1, aT2 : Real from Standard);
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Sets the range for the second edge
|
||||
|
||||
myIsDone : Boolean from Standard;
|
||||
myErrorStatus : Integer from Standard;
|
||||
CheckData(me:out)
|
||||
is protected;
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Checks the data
|
||||
|
||||
--- internal members
|
||||
mySeqOfCommonPrts : SequenceOfCommonPrts from IntTools;
|
||||
myOrder : Boolean from Standard; -- 0-strait; 1-reversed
|
||||
myPar1 : Real from Standard;
|
||||
myParallel : Boolean from Standard;
|
||||
myRange1 : Range from IntTools;
|
||||
myRange2 : Range from IntTools;
|
||||
Prepare(me:out)
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Prepares the data
|
||||
|
||||
Perform(me:out);
|
||||
---Purpose:
|
||||
-- Performs the intersection between edges
|
||||
|
||||
ComputeLineLine(me:out)
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Computes Line/Line intersection.
|
||||
|
||||
FindRoughRanges(me:out;
|
||||
theR1, theR2 : Range from IntTools;
|
||||
theSegments1 : out SequenceOfRanges from IntTools)
|
||||
returns Integer from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Looking for the rough intersection ranges
|
||||
|
||||
FindSolutions(me:out;
|
||||
theR1, theR2 : Range from IntTools;
|
||||
theRanges1 : out SequenceOfRanges from IntTools;
|
||||
theRanges2 : out SequenceOfRanges from IntTools)
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Looking fot the exact intersection ranges
|
||||
|
||||
MergeSolutions(me:out;
|
||||
theRanges1, theRanges2 : SequenceOfRanges from IntTools)
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Merges found solutions
|
||||
|
||||
FindParameters(myclass;
|
||||
theBAC : Curve from BRepAdaptor;
|
||||
aT1,aT2 : Real from Standard;
|
||||
theRes : Real from Standard;
|
||||
theCBox : Box from Bnd;
|
||||
aTB1,aTB2 : out Real from Standard)
|
||||
returns Boolean from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Looking for the range of the edge whick is in the box
|
||||
|
||||
CheckCoincidence(me:out;
|
||||
aT11, aT12 : Real from Standard;
|
||||
aT21, aT22 : Real from Standard;
|
||||
theCriteria : Real from Standard;
|
||||
theCurveRes1: Real from Standard)
|
||||
returns Integer from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Checks if edges coincide on the ranges
|
||||
|
||||
AddSolution(me:out;
|
||||
aT11, aT12, aT21, aT22 : Real from Standard;
|
||||
theType : ShapeEnum from TopAbs)
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Adds common part of the given type to myCommonParts
|
||||
|
||||
FindBestSolution(me:out;
|
||||
aT11, aT12, aT21, aT22 : Real from Standard;
|
||||
aT1, aT2 : out Real from Standard)
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Looking for the minimal distance between edges on the ranges
|
||||
|
||||
IsIntersection(me:out;
|
||||
aT11, aT12 : Real from Standard;
|
||||
aT21, aT22 : Real from Standard)
|
||||
returns Boolean from Standard
|
||||
is protected;
|
||||
---Purpose:
|
||||
-- Checks is there an intersection between edges on the given ranges
|
||||
-- (for nearly conicident edges)
|
||||
|
||||
IsDone(me)
|
||||
returns Boolean from Standard;
|
||||
---C++: inline
|
||||
---Purpose:
|
||||
-- Returns TRUE if common part(s) is(are) found
|
||||
|
||||
CommonParts(me)
|
||||
returns SequenceOfCommonPrts from IntTools;
|
||||
---C++: inline
|
||||
---C++: return const&
|
||||
---Purpose:
|
||||
-- Returns common parts
|
||||
|
||||
fields
|
||||
-- source data
|
||||
myEdge1 : Edge from TopoDS is protected;
|
||||
myEdge2 : Edge from TopoDS is protected;
|
||||
|
||||
myGeom1 : Curve from Geom is protected;
|
||||
myGeom2 : Curve from Geom is protected;
|
||||
|
||||
myCurve1 : Curve from BRepAdaptor is protected;
|
||||
myCurve2 : Curve from BRepAdaptor is protected;
|
||||
|
||||
myTol1 : Real from Standard is protected;
|
||||
myTol2 : Real from Standard is protected;
|
||||
myTol : Real from Standard is protected;
|
||||
|
||||
myRes1 : Real from Standard is protected;
|
||||
myRes2 : Real from Standard is protected;
|
||||
|
||||
myRange1 : Range from IntTools is protected;
|
||||
myRange2 : Range from IntTools is protected;
|
||||
|
||||
-- results
|
||||
mySwap : Boolean from Standard is protected;
|
||||
myErrorStatus : Integer from Standard is protected;
|
||||
myCommonParts : SequenceOfCommonPrts from IntTools is protected;
|
||||
|
||||
end EdgeEdge;
|
||||
|
||||
|
||||
Reference in New Issue
Block a user