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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
//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;
}
//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
}