GoTools Core Library: closestPtCurveSurf.h Source File

00001 //===========================================================================
00002 // GoTools - SINTEF Geometry Tools version 1.1
00003 //
00004 // GoTools module: CORE
00005 //
00006 // Copyright (C) 2000-2007 SINTEF ICT, Applied Mathematics, Norway.
00007 //
00008 // This program is free software; you can redistribute it and/or          
00009 // modify it under the terms of the GNU General Public License            
00010 // as published by the Free Software Foundation version 2 of the License. 
00011 //
00012 // This program is distributed in the hope that it will be useful,        
00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of         
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          
00015 // GNU General Public License for more details.                           
00016 //
00017 // You should have received a copy of the GNU General Public License      
00018 // along with this program; if not, write to the Free Software            
00019 // Foundation, Inc.,                                                      
00020 // 59 Temple Place - Suite 330,                                           
00021 // Boston, MA  02111-1307, USA.                                           
00022 //
00023 // Contact information: E-mail: tor.dokken@sintef.no                      
00024 // SINTEF ICT, Department of Applied Mathematics,                         
00025 // P.O. Box 124 Blindern,                                                 
00026 // 0314 Oslo, Norway.                                                     
00027 //
00028 // Other licenses are also available for this software, notably licenses
00029 // for:
00030 // - Building commercial software.                                        
00031 // - Building software whose source code you wish to keep private.        
00032 //===========================================================================
00033 #ifndef _CLOSESTPTCURVESURF_H
00034 #define _CLOSESTPTCURVESURF_H
00035 
00047 #include "ParamCurve.h"
00048 #include "ParamSurface.h"
00049 
00050 namespace Go {
00053 
00054 
00077     void closestPtCurveSurf(ParamCurve* pcurve, ParamSurface* psurf, double aepsge,
00078                             double astart1, double aend1, RectDomain *domain,
00079                             double anext1, double enext2[],
00080                             double& cpos1, double gpos2[],
00081                             double& dist, Point& pt_cv, Point& pt_su,
00082                             bool second_order=false);
00083 
00108 void closestPtCurveSurf(ParamCurve* pcurve, ParamSurface* psurf, double aepsge,
00109                        double astart1, double estart2[], double aend1,
00110                        double eend2[], double anext1, double enext2[],
00111                        double& cpos1, double gpos2[],
00112                        double& dist, Point& pt_cv, Point& pt_su, int& istat,
00113                         bool second_order=false);
00114 
00115 
00116 // Anonymous namespace
00118 namespace {
00121 
00131 void insideParamDomain(Point& gd, const Point& acoef, double astart1, 
00132                        double aend1, double astart2[],double aend2[],
00133                        int& corr);
00134 
00148 void nextStep(double& dist,Point& diff,Point& delta,int& kstat,
00149               std::vector<Point>& eval_cv,std::vector<Point>& eval_su, 
00150               int order);
00151 
00152 
00163 int localPretop(double dist,const Point& diff,const Point& normal,
00164                 const std::vector<Point>& eval_cv,
00165                 const std::vector<Point>& eval_su);
00166 
00167 
00185 void singular(ParamCurve* pcurve,ParamSurface* psurf,Point& par_val,
00186               double& dist, double aepsge,double delta,const Point& diff,
00187               const Point& norm_vec,
00188               const std::vector<Point>&eval_cv,
00189               const std::vector<Point>&eval_su,
00190               double astart1,double estart2[],double aend1,double eend2[]);
00191 
00192 
00206 void secant(ParamCurve *pcurve,ParamSurface *psurf,Point& par_val,
00207             double& dist,int& jstat, double delta,double aepsge,
00208             double astart1,double estart2[],double aend1,double eend2[]);
00209 
00210 
00223 void setReturnValues(const Point& par_val,ParamCurve* pcurve,
00224                      ParamSurface* psurf,double aepsge,
00225                      int& jstat,double& par_cv,double par_su[],
00226                      double& dist,Point& pt_cv,Point& pt_su);
00227 
00228 
00246 void newPointEval(ParamCurve *pcurve,double par_cv,ParamSurface *psurf,
00247                   double estart2[],double eend2[],double aepsge,
00248                   Point& par_su,double& y,double& dist,int& jstat);
00249 
00250 
00252 } // Anonymous namespace
00255 
00256 
00258 } // namespace Go  
00259 
00260 #endif // _CLOSESTPTCURVESURF_H
00261