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343 lines
9.6 KiB
Plaintext
Executable File
343 lines
9.6 KiB
Plaintext
Executable File
-- Created on: 1993-09-13
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-- Created by: Jacques GOUSSARD
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-- Copyright (c) 1993-1999 Matra Datavision
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-- Copyright (c) 1999-2012 OPEN CASCADE SAS
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--
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-- The content of this file is subject to the Open CASCADE Technology Public
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-- License Version 6.5 (the "License"). You may not use the content of this file
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-- except in compliance with the License. Please obtain a copy of the License
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-- at http://www.opencascade.org and read it completely before using this file.
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--
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-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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--
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-- The Original Code and all software distributed under the License is
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-- distributed on an "AS IS" basis, without warranty of any kind, and the
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-- Initial Developer hereby disclaims all such warranties, including without
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-- limitation, any warranties of merchantability, fitness for a particular
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-- purpose or non-infringement. Please see the License for the specific terms
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-- and conditions governing the rights and limitations under the License.
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deferred class CSFunction from Blend
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inherits AppFunction from Blend
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---Purpose: Deferred class for a function used to compute a blending
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-- surface between a surface and a curve, using a guide line.
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-- The vector <X> used in Value, Values and Derivatives methods
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-- may be the vector of the parametric coordinates U,V,
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-- W of the extremities of a section on the surface and
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-- the curve.
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uses Vector from math,
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Matrix from math,
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Vec from gp,
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Vec2d from gp,
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Pnt from gp,
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Pnt2d from gp,
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Point from Blend,
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Array1OfPnt from TColgp,
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Array1OfVec from TColgp,
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Array1OfPnt2d from TColgp,
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Array1OfVec2d from TColgp,
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Array1OfReal from TColStd,
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Array1OfInteger from TColStd
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raises DomainError from Standard
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is
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NbVariables(me)
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---Purpose: Returns 3 (default value). Can be redefined.
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returns Integer from Standard
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is virtual;
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NbEquations(me)
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---Purpose: returns the number of equations of the function.
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returns Integer from Standard
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is deferred;
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Value(me: in out; X: Vector; F: out Vector)
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---Purpose: computes the values <F> of the Functions for the
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-- variable <X>.
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-- Returns True if the computation was done successfully,
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-- False otherwise.
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returns Boolean from Standard
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is deferred;
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Derivatives(me: in out; X: Vector; D: out Matrix)
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---Purpose: returns the values <D> of the derivatives for the
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-- variable <X>.
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-- Returns True if the computation was done successfully,
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-- False otherwise.
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returns Boolean from Standard
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is deferred;
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Values(me: in out; X: Vector; F: out Vector; D: out Matrix)
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---Purpose: returns the values <F> of the functions and the derivatives
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-- <D> for the variable <X>.
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-- Returns True if the computation was done successfully,
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-- False otherwise.
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returns Boolean from Standard
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is deferred;
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Set(me: in out; Param: Real from Standard)
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---Purpose: Sets the value of the parameter along the guide line.
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-- This determines the plane in which the solution has
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-- to be found.
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is deferred;
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Set(me: in out; First, Last: Real from Standard)
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---Purpose: Sets the bounds of the parametric interval on
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-- the guide line.
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-- This determines the derivatives in these values if the
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-- function is not Cn.
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is deferred;
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GetTolerance(me; Tolerance: out Vector from math; Tol: Real from Standard)
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---Purpose: Returns in the vector Tolerance the parametric tolerance
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-- for each of the 3 variables;
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-- Tol is the tolerance used in 3d space.
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is deferred;
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GetBounds(me; InfBound,SupBound: out Vector from math)
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---Purpose: Returns in the vector InfBound the lowest values allowed
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-- for each of the 3 variables.
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-- Returns in the vector SupBound the greatest values allowed
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-- for each of the 3 variables.
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is deferred;
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IsSolution(me: in out; Sol: Vector from math; Tol: Real from Standard)
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---Purpose: Returns Standard_True if Sol is a zero of the function.
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-- Tol is the tolerance used in 3d space.
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-- The computation is made at the current value of
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-- the parameter on the guide line.
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returns Boolean from Standard
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is deferred;
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GetMinimalDistance(me)
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---Purpose: Returns the minimal Distance beetween two
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-- extremitys of calculed sections.
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returns Real from Standard
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is redefined;
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--- TheFollowing methods are called only when
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-- IsSolution returns Standard_True.
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Pnt1(me)
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---Purpose: Returns the point on the first support.
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---See Also: PointOnC
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---C++: return const &
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returns Pnt from gp
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is redefined static;
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Pnt2(me)
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---Purpose: Returns the point on the seconde support.
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---See Also: PointOnS
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---C++: return const &
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returns Pnt from gp
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is redefined static;
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PointOnS(me)
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---Purpose: Returns the point on the surface.
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returns Pnt from gp
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---C++: return const&
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is deferred;
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PointOnC(me)
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---Purpose: Returns the point on the curve.
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returns Pnt from gp
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---C++: return const&
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is deferred;
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Pnt2d(me)
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---Purpose: Returns U,V coordinates of the point on the surface.
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returns Pnt2d from gp
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---C++: return const&
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is deferred;
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ParameterOnC(me)
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---Purpose: Returns parameter of the point on the curve.
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returns Real from Standard
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is deferred;
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IsTangencyPoint(me)
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---Purpose: Returns True when it is not possible to compute
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-- the tangent vectors at PointOnS and/or PointOnC.
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returns Boolean from Standard
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is deferred;
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TangentOnS(me)
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---Purpose: Returns the tangent vector at PointOnS, in 3d space.
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returns Vec from gp
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---C++: return const&
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raises DomainError from Standard
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--- The exception is raised when IsTangencyPoint
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-- returns Standard_True.
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is deferred;
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Tangent2d(me)
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---Purpose: Returns the tangent vector at PointOnS, in the
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-- parametric space of the first surface.
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returns Vec2d from gp
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---C++: return const&
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raises DomainError from Standard
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--- The exception is raised when IsTangencyPoint
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-- returns Standard_True.
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is deferred;
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TangentOnC(me)
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---Purpose: Returns the tangent vector at PointOnC, in 3d space.
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returns Vec from gp
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---C++: return const&
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raises DomainError from Standard
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--- The exception is raised when IsTangencyPoint
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-- returns Standard_True.
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is deferred;
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Tangent(me; U,V: Real from Standard;
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TgS,NormS: out Vec from gp)
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---Purpose: Returns the tangent vector at the section,
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-- at the beginning and the end of the section, and
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-- returns the normal (of the surfaces) at
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-- these points.
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raises DomainError from Standard
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--- The exception is raised when IsTangencyPoint
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-- returns Standard_True.
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is deferred;
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-- Methods for the approximation
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--
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GetShape(me: in out;
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NbPoles : out Integer from Standard;
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NbKnots : out Integer from Standard;
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Degree : out Integer from Standard;
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NbPoles2d : out Integer from Standard)
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is deferred;
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GetTolerance(me;
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BoundTol, SurfTol, AngleTol : Real;
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Tol3d : out Vector;
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Tol1D : out Vector )
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---Purpose: Returns the tolerance to reach in approximation
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-- to respecte
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-- BoundTol error at the Boundary
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-- AngleTol tangent error at the Boundary
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-- SurfTol error inside the surface.
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is deferred;
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Knots(me: in out; TKnots: out Array1OfReal from TColStd)
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is deferred;
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Mults(me: in out; TMults: out Array1OfInteger from TColStd)
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is deferred;
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Section(me: in out; P: Point from Blend;
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Poles : out Array1OfPnt from TColgp;
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DPoles : out Array1OfVec from TColgp;
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Poles2d : out Array1OfPnt2d from TColgp;
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DPoles2d : out Array1OfVec2d from TColgp;
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Weigths : out Array1OfReal from TColStd;
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DWeigths : out Array1OfReal from TColStd)
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---Purpose: Used for the first and last section
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-- The method returns Standard_True if the derivatives
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-- are computed, otherwise it returns Standard_False.
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returns Boolean from Standard
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is deferred;
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Section(me: in out; P: Point from Blend;
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Poles : out Array1OfPnt from TColgp;
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Poles2d : out Array1OfPnt2d from TColgp;
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Weigths : out Array1OfReal from TColStd)
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is deferred;
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Section(me: in out; P: Point from Blend;
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Poles : out Array1OfPnt from TColgp;
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DPoles : out Array1OfVec from TColgp;
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D2Poles : out Array1OfVec from TColgp;
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Poles2d : out Array1OfPnt2d from TColgp;
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DPoles2d : out Array1OfVec2d from TColgp;
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D2Poles2d : out Array1OfVec2d from TColgp;
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Weigths : out Array1OfReal from TColStd;
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DWeigths : out Array1OfReal from TColStd;
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D2Weigths : out Array1OfReal from TColStd)
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---Purpose: Used for the first and last section
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-- The method returns Standard_True if the derivatives
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-- are computed, otherwise it returns Standard_False.
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returns Boolean from Standard
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is redefined;
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end CSFunction;
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