100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2008, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//paragraph [1] Title: [{\Large \bf \begin {center}] [\end {center}}]
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//[TOC] [\tableofcontents]
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//[ue] [\"u]
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//[ae] [\"a]
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//[oe] [\"o]
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//[x] [$\times $]
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//[->] [$\rightarrow $]
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[1] Implementation
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April - November 2008, M. H[oe]ger for bachelor thesis.
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[2] Implementation with exakt dataype,
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Oktober 2014 - Maerz 2015, S. Schroeer for master thesis.
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[TOC]
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1 Introduction
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2 Defines and Includes
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*/
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#include "Point3D.h"
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using namespace std;
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namespace temporalalgebra {
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namespace mregionops2 {
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bool Point3D::LiesBetween(const Point3D& p1, const Point3D& p2) const
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{
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Point3D th = *this;
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Point3D po1 = p1;
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Point3D po2 = p2;
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// cout << "LiesBetween - this point: " << th << " p1: " <<
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// po1 << " p2: " << po2 << endl;
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if ((*this == p1) || (*this == p2)) return true;
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cout << " may be false !" << endl;
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if (p1 == p2)
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{
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cout << "P1==P2\n";
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return false;
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}
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mpq_class ratio;
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if (p1.x != p2.x)
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{
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ratio = (x - p1.x) / (p2.x - p1.x);
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}
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else if (p1.y != p2.y)
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{
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ratio = (y - p1.y) / (p2.y - p1.y);
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}
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else
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{
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ratio = (z - p1.z) / (p2.z - p1.z);
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}
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if ((ratio < 0) || (ratio > 1)) { cout << "r<0 || r >1\n"; return false;}
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if ((x - p1.x) != (ratio * (p2.x - p1.x))) return false;
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if ((y - p1.y) != (ratio * (p2.y - p1.y))) return false;
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if ((z - p1.z) != (ratio * (p2.z - p1.z))) return false;
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cout << " is true" << endl;
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return true;
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}
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}
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}
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