vpRect.cpp

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2015 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:
 * Defines a rectangle in the plane.
 *
 * Author:
 * Fabien Spindler
 *
 *****************************************************************************/

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

vpRect::vpRect() : left(0), top(0), width(0), height(0) {};

vpRect::vpRect(double l, double t, double w, double h)
  : left(l), top(t), width(w), height(h)
{
};

vpRect::vpRect(const vpImagePoint &topLeft, double w, double h)
  : left(topLeft.get_u()), top(topLeft.get_v()), width(w), height(h)
{
};

vpRect::vpRect(const vpImagePoint &topLeft, const vpImagePoint &bottomRight)
  : left(topLeft.get_u()), top(topLeft.get_v()), width(0), height(0)
{
  this->left = topLeft.get_u();
  this->top = topLeft.get_v();
  
  setBottom( bottomRight.get_v() );
  setRight( bottomRight.get_u() );
};

vpRect::vpRect(const vpRect& r)
  : left(0), top(0), width(0), height(0)
{
  *this = r;
};

vpRect &vpRect::operator=(const vpRect& r) 
{
  this->left   = r.left;
  this->top    = r.top;
  this->width  = r.width;
  this->height = r.height;
  return *this;
};

vpRect::vpRect(const std::vector<vpImagePoint> &ip)
  : left(0), top(0), width(0), height(0)
{
  set(ip);
}

void vpRect::set(double l, double t, double w, double h)
{
  left = l;
  top = t;
  width = w;
  height = h;
};

void vpRect::set(const vpImagePoint &topLeft, double w, double h)
{
  left = topLeft.get_u();
  top = topLeft.get_v();
  width = w;
  height = h;
};

void vpRect::set(const std::vector<vpImagePoint> &ip)
{
  if (ip.size() < 1)
    throw (vpException(vpException::dimensionError,
                       "At least 1 point is requested to build a rectangle"));
  double minu, maxu;
  double minv, maxv;
  minu = maxu = ip[0].get_u();
  minv = maxv = ip[0].get_v();

  for(size_t i=1; i<ip.size(); i++) {
    double u  = ip[i].get_u();
    double v  = ip[i].get_v();
    if ( u < minu ) minu = u;
    else if (u > maxu) maxu = u;
    if ( v < minv ) minv = v;
    else if (v > maxv) maxv = v;
  }

  setLeft  (minu);
  setTop   (minv);
  setRight (maxu);
  setBottom(maxv);
};

void vpRect::set(const vpImagePoint &topLeft, const vpImagePoint &bottomRight)
{
  this->left = topLeft.get_u();
  this->top = topLeft.get_v();

  setBottom( bottomRight.get_v() );
  setRight( bottomRight.get_u() );
};

void vpRect::set(const vpRect& r)
{
  *this = r;
};

VISP_EXPORT bool inRectangle( const vpImagePoint &ip, const vpRect &rect ) {
  return ( ip.get_i() <= rect.getBottom() && ip.get_i() >= rect.getTop() && ip.get_j() <= rect.getRight() && ip.get_j() >= rect.getLeft());
}

VISP_EXPORT std::ostream& operator<< (std::ostream &os, const vpRect& r)
 {
  os << r.getLeft() << ", " << r.getTop() << ", " << r.getWidth() << ", " << r.getHeight();
  return os;
}