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107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/*
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* parcel implementation
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*
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* Copyright (C) Uwe Hebbelmann, Sebastian Stock, Andre Schemschat
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*
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* Released under the GPL version 3.
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*
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*/
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#include "grid/parcel.h"
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#include <fstream>
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#include <cstdlib>
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#include <iostream>
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using std::cerr;
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using std::endl;
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/**
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* Ctor
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*
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* @param offSetX the x-offset of the parcel
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* @param offSetZ the z-offset of the parcel
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* @param sizeX the width of the parcel
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* @param sizeZ the height of the parcel
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*/
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parcel::parcel(long offSetX, long offSetZ, long sizeX, long sizeZ)
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: grid(offSetX, offSetZ, sizeX, sizeZ)
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{
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}
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/**
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* Adds a grid to the parcel.
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* Adds just the points belonging to the parcel and
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* ignoring the rest.
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*
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* @param grid the grid to be added to the parcel
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*/
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void parcel::addGrid(const grid* g)
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{
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// Calculate the startvalue of x
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long startX = g->getOffsetX() < getOffsetX() ? getOffsetX() : g->getOffsetX();
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// calculate z-startvalue
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long startZ = g->getOffsetZ() < getOffsetZ() ? getOffsetZ() : g->getOffsetZ();
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// calculate x-endvalue
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long endX = g->getOffsetX() + g->getSizeX() < getOffsetX() + getSizeX() ? g->getOffsetX() + g->getSizeX()
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: getOffsetX() + getSizeX();
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// calculate z-endvalue
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long endZ = g->getOffsetZ() + g->getSizeZ() < getOffsetZ() + getSizeZ() ? g->getOffsetZ() + g->getSizeZ()
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: getOffsetZ() + getSizeZ();
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// add every point
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for(int i = startX; i < endX; i++)
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{
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for(int j = startZ; j < endZ; j++)
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{
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this->addPoint(*g->getAbsolutePoint(i, j));
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}
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}
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}
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/**
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* The static method reads the file and creates a new parcel.
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* The parcel is allocated with new, so the caller has to make
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* sure it is deleted properly!
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*
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* @param filename the filename of the parcel
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* @return parcel the created parcel
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*/
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parcel* parcel::readParcel(std::string filename)
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{
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std::ifstream infile(filename.c_str());
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// Stream ok?
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if(!infile.good())
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{
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std::cerr << "ERROR: In parcel::readparcel, couldn't open stream!" << std::endl;
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exit(1);
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}
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// Read sizes
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long sizeX;
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long sizeZ;
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infile >> sizeX >> sizeZ;
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// Read offsets
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long offsetX;
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long offsetZ;
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infile >> offsetX >> offsetZ;
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// Create parcel
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parcel* p = new parcel(offsetX, offsetZ, sizeX, sizeX);
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// Read all information
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long x, z, count, occupied;
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while(!infile.eof())
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{
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infile >> x >> z >> count >> occupied;
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p->setPoint(x, z, count, occupied);
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}
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infile.close();
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return p;
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}
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