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-- File: FuncExtPS.cdl
-- Created: Wed Jul 24 14:31:49 1991
-- Author: Michel CHAUVAT
-- <mca@topsn3>
---Copyright: Matra Datavision 1991
-- Modified by skv - Thu Sep 30 15:19:59 2004 OCC593
private class FuncExtPS from Extrema
inherits FunctionSetWithDerivatives from math
---Purpose: Fonction permettant de rechercher les extrema de la
-- distance entre un point et une surface.
uses POnSurf from Extrema,
SequenceOfPOnSurf from Extrema,
SequenceOfReal from TColStd,
Pnt from gp,
Vector from math,
Matrix from math,
Surface from Adaptor3d,
SurfacePtr from Adaptor3d
raises OutOfRange from Standard
is
Create returns FuncExtPS;
Create (P: Pnt; S: Surface from Adaptor3d) returns FuncExtPS;
---Purpose:
Initialize(me: in out; S: Surface from Adaptor3d)
---Purpose: sets the field mysurf of the function.
is static;
SetPoint(me: in out; P: Pnt)
---Purpose: sets the field mysurf of the function.
is static;
------------------------------------------------------------
-- In all next methods, an exception is raised if the fields
-- were not initialized.
NbVariables (me) returns Integer;
NbEquations (me) returns Integer;
Value (me: in out; UV: Vector; F: out Vector) returns Boolean;
---Purpose: Calcul de Fi(U,V).
Derivatives (me: in out; UV: Vector; DF: out Matrix)
returns Boolean;
---Purpose: Calcul de Fi'(U,V).
Values (me: in out; UV: Vector; F: out Vector; DF: out Matrix)
returns Boolean;
---Purpose: Calcul de Fi(U,V) et Fi'(U,V).
GetStateNumber (me: in out) returns Integer
---Purpose: Memorise l'extremum trouve.
is redefined;
NbExt (me) returns Integer;
---Purpose: Renvoie le nombre d'extrema trouves.
SquareDistance (me; N: Integer) returns Real
---Purpose: Renvoie la valeur de la Nieme distance.
raises OutOfRange;
-- si N < 1 ou N > NbExt(me).
Point (me; N: Integer) returns POnSurf
---Purpose: Renvoie le Nieme extremum.
raises OutOfRange;
-- si N < 1 ou N > NbExt(me).
-- Modified by skv - Thu Sep 30 15:19:59 2004 OCC593 Begin
HasDegIso(me) returns Boolean from Standard;
-- Modified by skv - Thu Sep 30 15:19:59 2004 OCC593 End
Bidon(me) returns SurfacePtr from Adaptor3d
is static private;
fields
myP : Pnt from gp;
myS : SurfacePtr from Adaptor3d;
myU : Real; -- valeur courante de U
myV : Real; -- valeur courante de V
myPs : Pnt from gp; -- point courant
mySqDist: SequenceOfReal from TColStd;
myPoint: SequenceOfPOnSurf from Extrema;
myPinit: Boolean;
mySinit: Boolean;
myUIsoIsDeg: Boolean;
myVIsoIsDeg: Boolean;
end FuncExtPS;
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