vpSubColVector.cpp

/****************************************************************************
 *
 * 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:
 * Mask on a vpColVector.
 *
 * Authors:
 * Laneurit Jean
 *
 *****************************************************************************/

#include <stdlib.h>

#include <visp3/core/vpSubColVector.h>
#include <visp3/core/vpException.h>

vpSubColVector::vpSubColVector()
  : vpColVector(), pRowNum(0), parent(NULL)
{
}

vpSubColVector::vpSubColVector(vpColVector &v, const unsigned int & offset, const unsigned int & nrows)
  : vpColVector(), pRowNum(0), parent(NULL)
{
  init(v, offset, nrows);
}

void vpSubColVector::init(vpColVector &v, 
                          const unsigned int & offset,
                          const unsigned int & nrows)
{
  if (!v.data) {
    throw(vpException(vpException::fatalError,
                      "Cannot initialize a sub-column vector from an empty parent column vector")) ;
  }
  
  if(offset+nrows<=v.getRows()){
    data=v.data+offset;
    
    rowNum=nrows;
    colNum = 1;
    
    pRowNum=v.getRows();
    parent=&v;
    
    if(rowPtrs){
      free(rowPtrs);
    }
    
    rowPtrs=(double**)malloc( parent->getRows() * sizeof(double*));
    for(unsigned int i=0;i<nrows;i++)
      rowPtrs[i]=v.data+i+offset;
    
    dsize = rowNum ;
  } else {
    throw(vpException(vpException::dimensionError,
                      "Cannot create a sub-column vector that is not completely containt in the parrent column vector")) ;
  }
}

vpSubColVector::~vpSubColVector(){
  data=NULL ;
}

void vpSubColVector::checkParentStatus() const{
  if (!data) {
    throw(vpException(vpException::fatalError,
                      "The parent of the current sub-column vector has been destroyed")) ;
  }
  if(pRowNum!=parent->getRows()){
    throw(vpException(vpException::dimensionError,
                      "The size of the parent sub-column vector has changed")) ;
  }
}

vpSubColVector & vpSubColVector::operator=(const vpSubColVector &B)
{
  if ( rowNum != B.getRows()) {
    throw(vpException(vpException::dimensionError,
                      "Cannot initialize (%dx1) sub-column vector from (%dx1) sub-column vector",
                      rowNum, B.getRows())) ;
  }
  
  for (unsigned int i=0;i<rowNum;i++)
    data[i] = B[i];
  return *this;
}

vpSubColVector & vpSubColVector::operator=(const vpColVector &B)
{
  if ( rowNum != B.getRows()) {
    throw(vpException(vpException::dimensionError,
                      "Cannot initialize (%dx1) sub-column vector from (%dx1) column vector",
                      rowNum, B.getRows())) ;
  }
  
  for (unsigned int i=0;i<rowNum;i++)
    data[i] = B[i];
  
  return *this;
}

vpSubColVector & vpSubColVector::operator=(const vpMatrix &B)
{
  if ((B.getCols()!=1)||(rowNum != B.getRows())) {
    throw(vpException(vpException::dimensionError,
                      "Cannot initialize (%dx1) sub-column vector from (%dx%d) matrix",
                      rowNum, B.getRows(), B.getCols())) ;
  }
  
  for (unsigned int i=0;i<rowNum;i++)
    data[i] = B[i][1];
  return *this;
}

vpSubColVector & vpSubColVector::operator=(const double &x)
{
  for (unsigned int i=0;i<rowNum;i++)
    data[i] = x;
  return *this;
}

vpSubColVector &vpSubColVector::operator=(const vpTranslationVector &tv)
{
  unsigned int k = tv.getRows() ;
  if (rowNum != k){
    try {
      resize(k);
    }
    catch(...)
    {
      throw ;
    }
  }

  memcpy(data, tv.data, rowNum*sizeof(double)) ;
  return *this;
}
vpSubColVector &vpSubColVector::operator=(const vpRotationVector &rv)
{
  unsigned int k = rv.getRows() ;
  if (rowNum != k){
    try {
      resize(k);
    }
    catch(...)
    {
      throw ;
    }
  }

  memcpy(data, rv.data, rowNum*sizeof(double)) ;
  return *this;
}
vpSubColVector &vpSubColVector::operator=(const vpPoseVector &p)
{
  unsigned int k = p.getRows() ;
  if (rowNum != k){
    try {
      resize(k);
    }
    catch(...)
    {
      throw ;
    }
  }

  memcpy(data, p.data, rowNum*sizeof(double)) ;
  return *this;
}