plot2d.cpp

Plot 2D curves example.

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Example which describes how to use the vpPlot class
 *
 * Author:
 * Nicolas Melchior
 *
 *****************************************************************************/


#include <visp3/core/vpConfig.h>
#include <visp3/core/vpDebug.h>

#include <visp3/gui/vpPlot.h>
#include <visp3/core/vpMath.h>

int main ()
{
#if defined(VISP_HAVE_DISPLAY)
  try {
    vpPlot plot(2, 700, 700, 100, 200, "Curves...");

    // Change the default font
    //  plot.setFont("-misc-fixed-bold-r-semicondensed--0-0-75-75-c-0-iso8859-10");

    //Initialize the number of curve for each graphic
    plot.initGraph(0,1);
    plot.initGraph(1,1);

    //Set the color of the curves
    plot.setColor(0,0,vpColor::green);
    plot.setColor(1,0,vpColor::red);

    //Set the titles of the graphic
    char title[40];
    strncpy( title, "cos function", 40 );
    plot.setTitle(0,title);
    strncpy( title, "sin function", 40 );
    plot.setTitle(1, title);

    //Set the legend of each curves
    char legend[40];
    strncpy( legend, "cos x", 40 );
    plot.setLegend(0,0,legend);
    strncpy( legend, "sin x", 40 );
    plot.setLegend(1,0, legend);

    //Set the x axis legend of each curves
    char unit[40];
    strncpy( unit, "x", 40 );
    plot.setUnitX(0,unit);
    strncpy( unit, "x", 40 );
    plot.setUnitX(1,unit);

    //Set the y axis legend of each curves
    strncpy( unit, "y", 40 );
    plot.setUnitY(0,unit);
    strncpy( unit, "y", 40 );
    plot.setUnitY(1,unit);

    //Plot the cosinus and sinus functions
    double i = 0;
    while(i <= 20*2*M_PI)
    {
      double co = cos(i);
      double si = sin(i);
      plot.plot(0,0,i,co);
      plot.plot(1,0,i,si);
      i+=0.1;
    }

    vpDisplay::getClick(plot.I);

    //Save the datas as text files
    plot.saveData(0, "dataCos.txt", "# ");
    plot.saveData(1, "dataSin.txt", "# ");
    return 0;
  }
  catch(vpException &e) {
    std::cout << "Catch an exception: " << e << std::endl;
    return 1;
  }

#else
  std::cout << "Plot functionalities are not avalaible since no display is available." << std::endl;
#endif

}