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-- File: Extrema_GenExtSS.cdl
-- Created: Thu Jan 18 10:27:34 1996
-- Author: Laurent PAINNOT
-- <lpa@nonox>
---Copyright: Matra Datavision 1996
class GenExtSS from Extrema
---Purpose: It calculates all the extremum distances
-- between two surfaces.
-- These distances can be minimum or maximum.
uses POnSurf from Extrema,
Pnt from gp,
HArray2OfPnt from TColgp,
FuncExtSS from Extrema,
Surface from Adaptor3d,
SurfacePtr from Adaptor3d
raises NotDone from StdFail,
OutOfRange from Standard,
TypeMismatch from Standard
is
Create returns GenExtSS;
Create (S1, S2: Surface from Adaptor3d; NbU,NbV: Integer; Tol1,Tol2: Real)
returns GenExtSS;
---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
-- to find the zeros.
Create (S1, S2: Surface from Adaptor3d; NbU,NbV: Integer;
U1min, U1sup, V1min, V1sup: Real;
U2min, U2sup, V2min, V2sup: Real;
Tol1,Tol2: Real)
returns GenExtSS;
---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.
-- NbU and NbV are used to locate the close points
-- to find the zeros.
Initialize(me: in out; S2: Surface from Adaptor3d;
NbU, NbV: Integer; Tol2: Real)
---Pupose: sets the fields of the algorithm.
is static;
Initialize(me: in out; S2: Surface from Adaptor3d; NbU, NbV: Integer;
U2min, U2sup, V2min, V2sup: Real; Tol2: Real)
---Pupose: sets the fields of the algorithm.
is static;
Perform(me: in out; S1: Surface from Adaptor3d; Tol1: Real)
---Purpose: the algorithm is done with S1
-- An exception is raised if the fields have not
-- been initialized.
raises TypeMismatch from Standard
is static;
Perform(me: in out; S1: Surface from Adaptor3d;
U1min, U1sup, V1min, V1sup: Real; Tol1: Real)
---Purpose: the algorithm is done withS1
-- 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;
PointOnS1 (me; N: Integer) returns POnSurf
---Purpose: Returns the point of the Nth resulting distance.
raises NotDone from StdFail,
-- if IsDone(me)=False.
OutOfRange
-- if N < 1 or N > NbPoints(me).
is static;
PointOnS2 (me; N: Integer) returns POnSurf
---Purpose: Returns the point of the Nth resulting distance.
raises NotDone from StdFail,
-- if IsDone(me)=False.
OutOfRange
-- if N < 1 or N > NbPoints(me).
is static;
Bidon(me) returns SurfacePtr from Adaptor3d
is static private;
fields
myDone : Boolean;
myInit : Boolean;
myu1min : Real;
myu1sup : Real;
myv1min : Real;
myv1sup : Real;
myu2min : Real;
myu2sup : Real;
myv2min : Real;
myv2sup : Real;
myusample : Integer;
myvsample : Integer;
mypoints1 : HArray2OfPnt from TColgp;
mypoints2 : HArray2OfPnt from TColgp;
mytol1 : Real;
mytol2 : Real;
myF : FuncExtSS from Extrema;
myS1 : SurfacePtr from Adaptor3d;
myS2 : SurfacePtr from Adaptor3d;
end GenExtSS;
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