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-- File: Adaptor3d_InterFunc.cdl
-- Created: Wed Feb 18 09:06:58 1998
-- Author: Jeanine PANCIATICI
-- <jpi@sgi38>
---Copyright: Matra Datavision 1998
private class InterFunc from Adaptor3d inherits FunctionWithDerivative from math
---Purpose: Used to find the points U(t) = U0 or V(t) = V0 in
-- order to determine the Cn discontinuities of an
-- Adpator_CurveOnSurface relativly to the
-- discontinuities of the surface.
uses
HCurve2d from Adaptor2d
raises ConstructionError
is
Create (C : HCurve2d from Adaptor2d; FixVal: Real from Standard;
Fix: Integer)
returns InterFunc
raises ConstructionError from Standard;
---Purpose: build the function U(t)=FixVal if Fix =1 or
-- V(t)=FixVal if Fix=2
Value(me: in out; X: Real; F: out Real)
---Purpose: computes the value <F>of the function for the variable <X>.
-- Returns True if the calculation were successfully done,
-- False otherwise.
returns Boolean;
Derivative(me: in out; X: Real; D: out Real)
---Purpose: computes the derivative <D> of the function
-- for the variable <X>.
-- Returns True if the calculation were successfully done,
-- False otherwise.
returns Boolean;
Values(me: in out; X: Real; F, D: out Real)
---Purpose: computes the value <F> and the derivative <D> of the
-- function for the variable <X>.
-- Returns True if the calculation were successfully done,
-- False otherwise.
returns Boolean;
fields
myCurve2d : HCurve2d from Adaptor2d;
myFixVal : Real from Standard;
myFix : Integer from Standard;
end InterFunc;
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