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-- File: Extrema_GExtCC2d.cdl
-- Created: Wed Jul 6 14:54:25 1994
-- Author: Laurent PAINNOT
-- <lpa@metrox>
---Copyright: Matra Datavision 1994
generic class GExtCC2d 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 POnCurv2d from Extrema,
SequenceOfPOnCurv2d from Extrema,
ExtElC2d from Extrema,
Pnt2d from gp,
HArray1OfPnt2d from TColgp,
SequenceOfReal from TColStd
raises InfiniteSolutions from StdFail,
NotDone from StdFail,
OutOfRange from Standard
class CCache2d instantiates CurveCache from Extrema (Curve1, Pnt2d from gp, HArray1OfPnt2d from TColgp);
class ECC2d instantiates GenExtCC from Extrema
(Curve1,
Tool1,
Curve2,
Tool2,
CCache2d,
HArray1OfPnt2d from TColgp,
POnCurv2d,
Pnt2d,
Vec2d);
is
Create returns GExtCC2d;
Create (C1: Curve1; C2: Curve2;
TolC1: Real = 1.0e-10; TolC2: Real = 1.0e-10) returns GExtCC2d;
---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 GExtCC2d;
---Purpose: It calculates all the distances.
Initialize(me: in out; C2: Curve2;
V1, V2: Real from Standard;
TolC1: Real = 1.0e-10;
TolC2: Real = 1.0e-10)
---Purpose: initializes the fields.
is static;
Perform(me: in out; C1: Curve1;
U1, U2: Real from Standard)
is static;
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 POnCurv2d)
---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 Pnt2d)
---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: ExtElC2d from Extrema;
Ut11, Ut12, Ut21, Ut22: Real;
Period1 : Real from Standard = 0.0;
Period2 : Real from Standard = 0.0)
is static protected;
-- modified by NIZHNY-EAP Thu Jan 27 16:53:25 2000 ___BEGIN___
Results(me: in out;AlgExt: ECC2d; C : Curve1;
-- modified by NIZHNY-EAP Thu Jan 27 16:53:26 2000 ___END___
Ut11, Ut12, Ut21, Ut22: Real;
Period1 : Real from Standard = 0.0;
Period2 : Real from Standard = 0.0)
is static protected;
fields
myDone: Boolean;
myIsPar: Boolean;
mypoints: SequenceOfPOnCurv2d from Extrema;
mySqDist: SequenceOfReal from TColStd;
mynbext: Integer;
inverse: Boolean;
myC: Address from Standard;
myu1: Real;
myu2: Real;
myv1: Real;
myv2: Real;
mytolc1: Real;
mytolc2: Real;
P1f: Pnt2d;
P1l: Pnt2d;
P2f: Pnt2d;
P2l: Pnt2d;
mydist11: Real;
mydist12: Real;
mydist21: Real;
mydist22: Real;
end GExtCC2d;
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