#ifndef _STREAM_LINES_H_
#define _STREAM_LINES_H

// Copyright (C) 1997-2007 C. Geuzaine, J.-F. Remacle
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
// 
// Please report all bugs and problems to <gmsh@geuz.org>.

#include "Plugin.h"

extern "C"
{
  GMSH_Plugin *GMSH_RegisterStreamLinesPlugin ();
}

class GMSH_StreamLinesPlugin : public GMSH_Post_Plugin
{
  static double callback(int num, int action, double value, double *opt,
			 double step, double min, double max);
public:
  GMSH_StreamLinesPlugin();
  void getName(char *name) const;
  void getInfos(char *author, 
		char *copyright,
		char *help_text) const;
  void catchErrorMessage (char *errorMessage) const;
  int getNbOptions() const;
  StringXNumber *getOption(int iopt);  
  Post_View *execute(Post_View *);
  virtual Post_View * GenerateView(int iView, int dView) const ;

  static int getNbU();
  static int getNbV();
  static void getPoint(int iU, int iV, double *X );

  static double callbackX0(int, int, double);
  static double callbackY0(int, int, double);
  static double callbackZ0(int, int, double);
  static double callbackX1(int, int, double);
  static double callbackY1(int, int, double);
  static double callbackZ1(int, int, double);
  static double callbackX2(int, int, double);
  static double callbackY2(int, int, double);
  static double callbackZ2(int, int, double);
  static double callbackU(int, int, double);
  static double callbackV(int, int, double);
  static void draw();
};

#endif