ViSP  2.6.2
plot3d.cpp

Plot 3D curves example.

/****************************************************************************
*
* $Id: plot.cpp 3530 2012-01-03 10:52:12Z fspindle $
*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2012 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://www.irisa.fr/lagadic/visp/visp.html for more information.
*
* This software was developed at:
* INRIA Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
* http://www.irisa.fr/lagadic
*
* 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 <iostream>
#include <visp/vpConfig.h>
#include <visp/vpPlot.h>
int main ()
{
#if defined(VISP_HAVE_X11) || defined(VISP_HAVE_GDI) || defined(VISP_HAVE_OPENCV)
//Create a window with one graphic
vpPlot plot(1);
// Change the default font
//plot.setFont("-misc-fixed-bold-r-semicondensed--0-0-75-75-c-0-iso8859-10");
//The graphic contains 2 curves
plot.initGraph(0,2);
//Set the graphic parameters
plot.setTitle(0, "First graphic");
plot.setUnitX(0, "time (s)");
plot.setUnitY(0, "y");
plot.setUnitZ(0, "z");
plot.setLegend(0,0, "y^2+z^2=1 and y(0) = 1");
plot.setLegend(0,1, "y^2+z^2=1 and y(0) = -1");
double x = 0;
double y = 1;
double z = 0 ;
double dx = 0.08;
double dy = 0.04;
double zsign = 1.0;
unsigned long iter = 0;
std::cout << "Hit CTRL-C to exit...";
while(1) {
if (iter < 300) {
//y*y+z*z = 1
if (fabs(y) < 1.0)
z = sqrt(1.0-y*y);
else z = 0;
//Add points to the graphic
plot.plot(0,0, x, y,z*zsign);
plot.plot(0,1, x, -y,-z*zsign);
x += dx;
if (fabs(y) >= 1.0 )
dy = -dy;
y += dy;
if (fabs(y) >= 1.0 )
zsign = -zsign;
}
else {
// Tip: to allows modifying the point of view with the mouse we
// plot always the last point
plot.plot(0,0, x, y,z*zsign);
plot.plot(0,1, x, -y,-z*zsign);
}
iter ++;
}
return 0;
#endif
}