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-- File: Approx.cdl
-- Created: Tue Jan 26 11:16:41 1993
-- Author: Laurent PAINNOT
-- <lpa@sdsun1>
---Copyright: Matra Datavision 1993
package Approx
---Purpose: Tis package provides algorithms approximating a set of
-- points or curves with the possibility of dividing into
-- one or many bezier curves.
-- It also provides an instantiation for approximating
-- a continous function f(t) into one or many curves.
uses AdvApprox,
AppCont,
AppParCurves,
math,
gp,
GeomAbs,
Geom,
Geom2d,
Adaptor3d,
Adaptor2d,
TColStd,
TColGeom,
TColgp,
TCollection,
Standard,
StdFail
is
enumeration ParametrizationType is
ChordLength,
Centripetal,
IsoParametric
end;
enumeration Status is
PointsAdded,
NoPointsAdded,
NoApproximation
end;
deferred generic class TheLineTool; ---Template
---Purpose: This template is different from the one of AppParCurves.
-- In this case, it is possible to insert new points
-- during the approximation with ComputeLine.
---------------------------------------------
---Algorithms for Bezier curves construction:
---------------------------------------------
generic class ComputeLine, MyGradient;
---Purpose: Approximate a MultiLine with a cutting.
generic class ComputeCLine, MyLeastSquare;
---Purpose: Approximate a continous MultiLine with a cutting.
-- The Tool of the line is the tool from AppCont.
generic class ComputeCSurface, MySLeastSquare;
---Purpose: Approximate a continous Surface with or without cutting.
-- The tool is the tool of AppCont.
----------------------------------------------
---Algorithms for BSpline curves construction:
----------------------------------------------
generic class BSplComputeLine, MyBSplGradient, MyGradientbis;
----------------------------------------------
---Algorithms for BSpline Surface construction:
----------------------------------------------
class SweepApproximation;
deferred class SweepFunction;
-----------------------------------------------------------------
--- Transformation of connecting MultiCurves into a MultiBSpCurve
-----------------------------------------------------------------
class MCurvesToBSpCurve;
------------------------------------------------
---Algorithms for PCurve approximation:
------------------------------------------------
class CurveOnSurface;
class Curve3d;
class Curve2d;
------------------------------------------------
---Algorithms for PCurve approximation:
------------------------------------------------
class CurvilinearParameter;
class CurvlinFunc;
--------------------------
--- instantiate classes:
--------------------------
class SequenceOfHArray1OfReal instantiates Sequence from TCollection
(HArray1OfReal from TColStd);
-----------------------------------------------------------------
--- the folowing classes approximate a continous function f(t) in
--- one or many bezier curves.
-----------------------------------------------------------------
class FitAndDivide instantiates ComputeCLine from Approx
(Function from AppCont, FunctionTool from AppCont);
class FitAndDivide2d instantiates ComputeCLine from Approx
(Function2d from AppCont, FunctionTool2d from AppCont);
class SameParameter from Approx ;
---Purpose: this makes a 3D curve from Adaptor3d and
-- a curve on surface to check and build a 2D
-- BSpline curve that has the same parameterisation
-- as the 3D curve.
class Array1OfAdHSurface instantiates Array1 from TCollection
(HSurface from Adaptor3d) ;
class HArray1OfAdHSurface instantiates HArray1 from TCollection
(HSurface from Adaptor3d, Array1OfAdHSurface) ;
class Array1OfGTrsf2d instantiates Array1 from TCollection
(GTrsf2d from gp) ;
class HArray1OfGTrsf2d instantiates HArray1 from TCollection
(GTrsf2d from gp, Array1OfGTrsf2d) ;
-- class ApproxPoints from Approx ;
-- class ApproxPoints from Approx ;
---Purpose:
-- this approximates a series of points
-- Boundary conditions can be given as well
-- a given parameterisation
--
end Approx;
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