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-- File: Extrema_GExtCC.cdl
-- Created: Wed Jul 6 14:37:10 1994
-- Author: Laurent PAINNOT
-- <lpa@metrox>
---Copyright: Matra Datavision 1994
generic class GExtCC from Extrema (Curve1 as any;
Tool1 as any;
Curve2 as any;
Tool2 as any)
---Purpose: It calculates all the distance between two curves.
-- These distances can be maximum or minimum.
uses POnCurv from Extrema,
SequenceOfPOnCurv from Extrema,
ExtElC from Extrema,
Pnt from gp,
HArray1OfPnt from TColgp,
SequenceOfReal from TColStd,
ListOfTransient from TColStd
raises InfiniteSolutions from StdFail,
NotDone from StdFail,
OutOfRange from Standard
class CCache instantiates CurveCache from Extrema (Curve1, Pnt from gp, HArray1OfPnt from TColgp);
class ECC instantiates GenExtCC from Extrema
(Curve1,
Tool1,
Curve2,
Tool2,
CCache,
HArray1OfPnt from TColgp,
POnCurv,
Pnt,
Vec);
is
Create (TolC1: Real = 1.0e-10; TolC2: Real = 1.0e-10) returns GExtCC;
Create (C1: Curve1; C2: Curve2;
TolC1: Real = 1.0e-10; TolC2: Real = 1.0e-10) returns GExtCC;
---Purpose: It calculates all the distances.
Create (C1: Curve1;
C2: Curve2;
U1: Real from Standard;
U2: Real from Standard;
V1: Real from Standard;
V2: Real from Standard;
TolC1: Real = 1.0e-10;
TolC2: Real = 1.0e-10) returns GExtCC;
---Purpose: It calculates all the distances.
SetCurve (me: in out; theRank: Integer; C: Curve1);
---Purpose:
SetCurve (me: in out; theRank: Integer; C: Curve1; Uinf, Usup: Real);
---Purpose:
SetRange (me: in out; theRank: Integer; Uinf, Usup: Real);
---Purpose:
SetTolerance (me: in out; theRank: Integer; Tol: Real);
---Purpose:
Perform(me: in out);
IsDone (me) returns Boolean
---Purpose: Returns True if the distances are found.
is static;
NbExt (me) returns Integer
---Purpose: Returns the number of extremum distances.
raises NotDone from StdFail,
-- if IsDone(me)=False.
InfiniteSolutions from StdFail
-- if IsParallel(me)= True.
is static;
IsParallel (me) returns Boolean
---Purpose: Returns True if the two curves are parallel.
raises NotDone from StdFail
-- if IsDone(me)=False.
is static;
SquareDistance (me; N: Integer =1) returns Real
---Purpose: Returns the value of the Nth extremum square distance.
raises NotDone from StdFail,
-- if IsDone(me)=False.
InfiniteSolutions from StdFail,
-- if IsParallel(me)= True and N > 1.
OutOfRange
-- if N < 1 or N > NbExt(me)
is static;
Points (me; N: Integer; P1,P2: out POnCurv)
---Purpose: Returns the points of the Nth extremum distance.
-- P1 is on the first curve, P2 on the second one.
raises NotDone from StdFail,
-- if IsDone(me)=False.
InfiniteSolutions from StdFail,
-- if IsParallel(me)= True.
OutOfRange
-- if N < 1 or N > NbExt(me)
is static;
TrimmedSquareDistances(me; dist11, distP12, distP21, distP22: out Real;
P11, P12, P21, P22: out Pnt)
---Purpose: if the curve is a trimmed curve,
-- dist11 is a square distance between the point on C1
-- of parameter FirstParameter and the point of
-- parameter FirstParameter on C2.
is static;
Results(me: in out; AlgExt: ExtElC from Extrema;
Ut11, Ut12, Ut21, Ut22: Real)
is static protected;
Results(me: in out;AlgExt: ECC;
Ut11, Ut12, Ut21, Ut22: Real)
is static protected;
fields
myECC: ECC from Extrema;
myDone: Boolean;
myIsPar: Boolean;
mypoints: SequenceOfPOnCurv from Extrema;
mySqDist: SequenceOfReal from TColStd;
mynbext: Integer;
inverse: Boolean;
myC: Address from Standard [2];
myInf: Real [2];
mySup: Real [2];
myTol: Real [2];
myCacheLists: ListOfTransient from TColStd [2]; -- lists of Handle(Extrema_CCache)
P1f: Pnt;
P1l: Pnt;
P2f: Pnt;
P2l: Pnt;
mydist11: Real;
mydist12: Real;
mydist21: Real;
mydist22: Real;
end GExtCC;
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