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-- File: Blend_CurvPointFuncInv.cdl
-- Created: Wed Feb 12 11:16:58 1997
-- Author: Laurent BOURESCHE
-- <lbo@pomalox.paris1.matra-dtv.fr>
---Copyright: Matra Datavision 1997
deferred class CurvPointFuncInv from Blend
---Purpose: Deferred class for a function used to compute a
-- blending surface between a surface and a curve, using
-- a guide line. This function is used to find a
-- solution on a done point of the curve.
-- The vector <X> used in Value, Values and Derivatives
-- methods has to be the vector of the parametric
-- coordinates w, U, V where w is the parameter on the
-- guide line, U,V are the parametric coordinates of a
-- point on the partner surface.
inherits FunctionSetWithDerivatives from math
uses
Pnt from gp,
Vector from math,
Matrix from math
is
NbVariables(me)
---Purpose: Returns 3.
returns Integer from Standard
is static;
NbEquations(me)
---Purpose: returns the number of equations of the function.
returns Integer from Standard
is deferred;
Value(me: in out; X: Vector; F: out Vector)
---Purpose: computes the values <F> of the Functions for the
-- variable <X>.
-- Returns True if the computation was done successfully,
-- False otherwise.
returns Boolean from Standard
is deferred;
Derivatives(me: in out; X: Vector; D: out Matrix)
---Purpose: returns the values <D> of the derivatives for the
-- variable <X>.
-- Returns True if the computation was done successfully,
-- False otherwise.
returns Boolean from Standard
is deferred;
Values(me: in out; X: Vector; F: out Vector; D: out Matrix)
---Purpose: returns the values <F> of the functions and the derivatives
-- <D> for the variable <X>.
-- Returns True if the computation was done successfully,
-- False otherwise.
returns Boolean from Standard
is deferred;
Set(me: in out; P : Pnt from gp)
---Purpose: Set the Point on which a solution has to be found.
is deferred;
GetTolerance(me; Tolerance: out Vector from math; Tol: Real from Standard)
---Purpose: Returns in the vector Tolerance the parametric tolerance
-- for each of the 3 variables;
-- Tol is the tolerance used in 3d space.
is deferred;
GetBounds(me; InfBound,SupBound: out Vector from math)
---Purpose: Returns in the vector InfBound the lowest values allowed
-- for each of the 3 variables.
-- Returns in the vector SupBound the greatest values allowed
-- for each of the 3 variables.
is deferred;
IsSolution(me: in out; Sol: Vector from math; Tol: Real from Standard)
---Purpose: Returns Standard_True if Sol is a zero of the function.
-- Tol is the tolerance used in 3d space.
returns Boolean from Standard
is deferred;
end CurvPointFuncInv;
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