Point.cpp

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/*
 *  Copyright (C) 2007  A.N. Yzelman
 *  Released under LGPL, see license.txt
 *
 *  Last modified at 2th of May, 2007, by A.N. Yzelman
 *
 *  Point.cpp: Implementation of the functions described in Point.h
 *
 */

#include "Point.h"

Point::Point( int dimension ) { m_coordinates.resize( dimension ); }

Point::Point( vector<double> &toCopy ) { m_coordinates = toCopy; }

double Point::getCoordinate( const int index ) const {
        return m_coordinates[ index ];
}

void Point::setCoordinates( vector<double> v ) { m_coordinates = v; }

unsigned int Point::getDimension() const { return m_coordinates.size(); }

Point* Point::operator-(const Point other) const {
        //get dimensionality
        int len = m_coordinates.size();
        
        //vector used to store the differences in
        vector<double> v;
        
        //calculate the differences
        for (int i=0; i<len; i++) {
                v.push_back( m_coordinates[i] - other.getCoordinate(i) );
        }
        
        //Create the new point
        Point *ret = new Point(len);
        
        //set the coordinates
        ret->setCoordinates(v);
        
        //return the point
        return ret;
}

string Point::toString() const {
        ostringstream os;
        
        os << " < ";
        for ( unsigned int i=0; i<m_coordinates.size(); i++ )
                os << m_coordinates[i] << " ";
        os << ">";
        return os.str();
}

//non-member functions

ostream& operator <<( ostream &os, const Point point ) {
        os << point.toString();
        return os;
}

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