gunu_global_approximate.h Source File

00001 /* LIBGUL - Geometry Utility Library
00002  * Copyright (C) 1998-1999 Norbert Irmer
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Library General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Library General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Library General Public
00015  * License along with this library; if not, write to the
00016  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00017  * Boston, MA 02111-1307, USA.
00018  */
00019 
00020 #ifndef GUNU_GLOBAL_APPROXIMATE_H
00021 #define GUNU_GLOBAL_APPROXIMATE_H
00022 
00023 namespace gunu {
00024 
00025 /*----------------------------------------------------------------------
00026   Least squares approximation of a set of data points with a curve of a
00027   certain degree, number of knots and number of control points
00028   (knot vector of the curve and parameter values of the data points have
00029   to be provided by the caller; also the maximum number of data points per
00030   knot span must be given) 
00031 -----------------------------------------------------------------------*/
00032 template< class T, class EP >
00033 GULAPI bool DoGlobalCurveApproximation(
00034           int nQ, 
00035           const Ptr<EP>& Q, const 
00036           Ptr<T>& QU,
00037           int n, 
00038           int p, 
00039           const Ptr<T>& U, 
00040           int max_pts_span, 
00041           Ptr<EP>& P );
00042 
00043 
00044 /*----------------------------------------------------------------------
00045   Least squares approximation of a set of data points with a curve of a
00046   certain degree, number of knots and number of control points
00047 -----------------------------------------------------------------------*/
00048 template< class T, class EP >
00049 GULAPI bool GlobalCurveApproximation(int nQ, const Ptr<EP>& Q,
00050                          int n, int p, Ptr<T>& U, Ptr<EP>& P );
00051 
00052 /*----------------------------------------------------------------------
00053   Least squares approximation of a set of data points with a surface
00054 -----------------------------------------------------------------------*/
00055 template< class T, class EP >
00056 GULAPI bool GlobalSurfaceApproximation(
00057            int nRows, int nCols, const Ptr< Ptr<EP> >& Q,
00058            int nu, int pu, Ptr<T>& U, int nv, int pv, Ptr<T>& V,
00059            Ptr< Ptr<EP> > &P );
00060 
00061 }
00062 
00063 #endif