mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-09 18:50:54 +03:00
d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
263 lines
11 KiB
Plaintext
263 lines
11 KiB
Plaintext
-- Created on: 1994-03-23
|
|
-- Created by: Bruno DUMORTIER
|
|
-- Copyright (c) 1994-1999 Matra Datavision
|
|
-- Copyright (c) 1999-2014 OPEN CASCADE SAS
|
|
--
|
|
-- This file is part of Open CASCADE Technology software library.
|
|
--
|
|
-- This library is free software; you can redistribute it and/or modify it under
|
|
-- the terms of the GNU Lesser General Public License version 2.1 as published
|
|
-- by the Free Software Foundation, with special exception defined in the file
|
|
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
-- distribution for complete text of the license and disclaimer of any warranty.
|
|
--
|
|
-- Alternatively, this file may be used under the terms of Open CASCADE
|
|
-- commercial license or contractual agreement.
|
|
|
|
class PointsToBSpline from Geom2dAPI
|
|
|
|
---Purpose: This class is used to approximate a BsplineCurve
|
|
-- passing through an array of points, with a given
|
|
-- Continuity.
|
|
-- Describes functions for building a 2D BSpline
|
|
-- curve which approximates a set of points.
|
|
-- A PointsToBSpline object provides a framework for:
|
|
-- - defining the data of the BSpline curve to be built,
|
|
-- - implementing the approximation algorithm, and
|
|
-- - consulting the results
|
|
|
|
|
|
|
|
uses
|
|
Array1OfReal from TColStd,
|
|
Array1OfPnt2d from TColgp,
|
|
Shape from GeomAbs,
|
|
BSplineCurve from Geom2d,
|
|
ParametrizationType from Approx
|
|
raises
|
|
NotDone from StdFail,
|
|
OutOfRange from Standard
|
|
is
|
|
Create
|
|
---Purpose: Constructs an empty approximation algorithm.
|
|
-- Use an Init function to define and build the BSpline curve.
|
|
returns PointsToBSpline from Geom2dAPI;
|
|
|
|
Create(Points : Array1OfPnt2d from TColgp;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-6)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point. The resulting BSpline will have
|
|
-- the following properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
returns PointsToBSpline from Geom2dAPI;
|
|
|
|
Create(YValues : Array1OfReal from TColStd;
|
|
X0 : Real from Standard;
|
|
DX : Real from Standard;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-6)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point. Of coordinates :
|
|
--
|
|
-- X = X0 + DX * (i-YValues.Lower())
|
|
-- Y = YValues(i)
|
|
--
|
|
-- With i in the range YValues.Lower(), YValues.Upper()
|
|
--
|
|
-- The BSpline will be parametrized from t = X0 to
|
|
-- X0 + DX * (YValues.Upper() - YValues.Lower())
|
|
--
|
|
-- And will satisfy X(t) = t
|
|
--
|
|
-- The resulting BSpline will have
|
|
-- the following properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
returns PointsToBSpline from Geom2dAPI;
|
|
|
|
|
|
Create(Points : Array1OfPnt2d from TColgp;
|
|
ParType : ParametrizationType from Approx;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-3)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point. The resulting BSpline will have
|
|
-- the following properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
returns PointsToBSpline from Geom2dAPI;
|
|
|
|
Create(Points : Array1OfPnt2d from TColgp;
|
|
Parameters : Array1OfReal from TColStd;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-3)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point, which parameters are given by the
|
|
-- array <Parameters>.
|
|
-- The resulting BSpline will have the following
|
|
-- properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
returns PointsToBSpline from Geom2dAPI
|
|
raises OutOfRange from Standard;
|
|
|
|
|
|
Create(Points : Array1OfPnt2d from TColgp;
|
|
Weight1 : Real from Standard;
|
|
Weight2 : Real from Standard;
|
|
Weight3 : Real from Standard;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol3D : Real from Standard = 1.0e-3)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point using variational smoothing algorithm,
|
|
-- which tries to minimize additional criterium:
|
|
-- Weight1*CurveLength + Weight2*Curvature + Weight3*Torsion
|
|
---Level: Public
|
|
returns PointsToBSpline from Geom2dAPI;
|
|
|
|
Init(me : in out;
|
|
Points : Array1OfPnt2d from TColgp;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-6)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point. The resulting BSpline will have
|
|
-- the following properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
is static;
|
|
|
|
Init(me : in out;
|
|
YValues : Array1OfReal from TColStd;
|
|
X0 : Real from Standard;
|
|
DX : Real from Standard;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-6)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point. Of coordinates :
|
|
--
|
|
-- X = X0 + DX * (i-YValues.Lower())
|
|
-- Y = YValues(i)
|
|
--
|
|
-- With i in the range YValues.Lower(), YValues.Upper()
|
|
--
|
|
-- The BSpline will be parametrized from t = X0 to
|
|
-- X0 + DX * (YValues.Upper() - YValues.Lower())
|
|
--
|
|
-- And will satisfy X(t) = t
|
|
--
|
|
-- The resulting BSpline will have
|
|
-- the following properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
is static;
|
|
|
|
|
|
Init(me : in out;
|
|
Points : Array1OfPnt2d from TColgp;
|
|
ParType : ParametrizationType from Approx;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-3)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point. The resulting BSpline will have
|
|
-- the following properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
is static;
|
|
|
|
|
|
Init(me : in out;
|
|
Points : Array1OfPnt2d from TColgp;
|
|
Parameters : Array1OfReal from TColStd;
|
|
DegMin : Integer from Standard = 3;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-3)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point, which parameters are given by the
|
|
-- array <Parameters>.
|
|
-- The resulting BSpline will have the following
|
|
-- properties:
|
|
-- 1- his degree will be in the range [Degmin,Degmax]
|
|
-- 2- his continuity will be at least <Continuity>
|
|
-- 3- the distance from the point <Points> to the
|
|
-- BSpline will be lower to Tol2D
|
|
---Level: Public
|
|
is static;
|
|
|
|
|
|
Init(me : in out;
|
|
Points : Array1OfPnt2d from TColgp;
|
|
Weight1 : Real from Standard;
|
|
Weight2 : Real from Standard;
|
|
Weight3 : Real from Standard;
|
|
DegMax : Integer from Standard = 8;
|
|
Continuity : Shape from GeomAbs = GeomAbs_C2;
|
|
Tol2D : Real from Standard = 1.0e-3)
|
|
---Purpose: Approximate a BSpline Curve passing through an
|
|
-- array of Point using variational smoothing algorithm,
|
|
-- which tries to minimize additional criterium:
|
|
-- Weight1*CurveLength + Weight2*Curvature + Weight3*Torsion
|
|
---Level: Public
|
|
is static;
|
|
|
|
|
|
Curve(me)
|
|
---Purpose: Returns the approximate BSpline Curve
|
|
---Level: Public
|
|
returns BSplineCurve from Geom2d
|
|
---C++: return const &
|
|
---C++: alias "Standard_EXPORT operator Handle(Geom2d_BSplineCurve)() const;"
|
|
raises
|
|
NotDone from StdFail
|
|
is static;
|
|
|
|
|
|
IsDone(me)
|
|
returns Boolean from Standard;
|
|
|
|
|
|
fields
|
|
myIsDone : Boolean from Standard;
|
|
myCurve : BSplineCurve from Geom2d;
|
|
|
|
|
|
end PointsToBSpline;
|