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-- File: Extrema_GenExtCS.cdl
-- Created: Tue Jan 23 10:30:58 1996
-- Author: Laurent PAINNOT
-- <lpa@nonox>
---Copyright: Matra Datavision 1996
class GenExtCS from Extrema
---Purpose: It calculates all the extremum distances
-- between acurve and a surface.
-- These distances can be minimum or maximum.
uses POnSurf from Extrema,
POnCurv from Extrema,
Pnt from gp,
HArray1OfPnt from TColgp,
HArray2OfPnt from TColgp,
FuncExtCS from Extrema,
Surface from Adaptor3d,
SurfacePtr from Adaptor3d,
Curve from Adaptor3d,
CurvePtr from Adaptor3d
raises NotDone from StdFail,
OutOfRange from Standard,
TypeMismatch from Standard
is
Create returns GenExtCS;
Create (C: Curve from Adaptor3d; S: Surface from Adaptor3d;
NbT: Integer; NbU,NbV: Integer; Tol1,Tol2: Real)
returns GenExtCS;
---Purpose: It calculates all the distances.
-- The function F(u,v)=distance(S1(u1,v1),S2(u2,v2)) has an
-- extremum when gradient(F)=0. The algorithm searchs
-- all the zeros inside the definition ranges of the
-- surfaces.
-- NbU and NbV are used to locate the close points on the
-- surface and NbT on the curve to find the zeros.
Create (C: Curve from Adaptor3d; S: Surface from Adaptor3d;
NbT,NbU,NbV: Integer;
tmin, tsup: Real;
Umin, Usup, Vmin, Vsup: Real;
Tol1,Tol2: Real)
returns GenExtCS;
---Purpose: It calculates all the distances.
-- The function F(u,v)=distance(P,S(u,v)) has an
-- extremum when gradient(F)=0. The algorithm searchs
-- all the zeros inside the definition ranges of the
-- surface.
-- NbT,NbU and NbV are used to locate the close points
-- to find the zeros.
Initialize(me: in out; S: Surface from Adaptor3d;
NbU, NbV: Integer; Tol2: Real)
---Pupose: sets the fields of the algorithm.
is static;
Initialize(me: in out; S: Surface from Adaptor3d; NbU, NbV: Integer;
Umin, Usup, Vmin, Vsup: Real; Tol2: Real)
---Pupose: sets the fields of the algorithm.
is static;
Perform(me: in out; C: Curve from Adaptor3d;
NbT: Integer; Tol1: Real)
---Purpose: the algorithm is done with S
-- An exception is raised if the fields have not
-- been initialized.
raises TypeMismatch from Standard
is static;
Perform(me: in out; C: Curve from Adaptor3d; NbT: Integer;
tmin, tsup: Real; Tol1: Real)
---Purpose: the algorithm is done with C
-- An exception is raised if the fields have not
-- been initialized.
raises TypeMismatch 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.
is static;
SquareDistance(me; N: Integer) returns Real
---Purpose: Returns the value of the Nth resulting square distance.
raises NotDone from StdFail,
-- if IsDone(me)=False.
OutOfRange
-- if N < 1 or N > NbPoints(me).
is static;
PointOnCurve (me; N: Integer) returns POnCurv
---Purpose: Returns the point of the Nth resulting distance.
---C++: return const&
raises NotDone from StdFail,
-- if IsDone(me)=False.
OutOfRange
-- if N < 1 or N > NbPoints(me).
is static;
PointOnSurface (me; N: Integer) returns POnSurf
---Purpose: Returns the point of the Nth resulting distance.
---C++: return const&
raises NotDone from StdFail,
-- if IsDone(me)=False.
OutOfRange
-- if N < 1 or N > NbPoints(me).
is static;
BidonCurve(me) returns CurvePtr from Adaptor3d
is static private;
BidonSurface(me) returns SurfacePtr from Adaptor3d
is static private;
fields
myDone : Boolean;
myInit : Boolean;
mytmin : Real;
mytsup : Real;
myumin : Real;
myusup : Real;
myvmin : Real;
myvsup : Real;
mytsample : Integer;
myusample : Integer;
myvsample : Integer;
mypoints1 : HArray1OfPnt from TColgp;
mypoints2 : HArray2OfPnt from TColgp;
mytol1 : Real;
mytol2 : Real;
myF : FuncExtCS from Extrema;
myC : CurvePtr from Adaptor3d;
myS : SurfacePtr from Adaptor3d;
end GenExtCS;
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