66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, 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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01590 Fachpraktikum "Erweiterbare Datenbanksysteme"
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WS 2014 / 2015
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<our names here>
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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[TOC] [\tableofcontents]
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[1] Implementation of a Spatial3D algebra
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[TOC]
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1 Includes and Defines
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*/
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#include "AuxiliaryTypes.h"
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#include "geometric_algorithm.h"
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#include "geometric_algorithm_intersection_line_plane.h"
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using namespace spatial3d_geometric;
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Projection2d::Projection2d() { }
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Projection2d::Projection2d(const Plane3d& plane,
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const SimplePoint3d& base,
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const SimplePoint3d& directionX)
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{
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this->plane = plane;
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this->origin = projectPointOntoPlane(base, plane);
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Vector3d unitXNotNormalized(this->origin,
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projectPointOntoPlane(directionX, plane));
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this->unitX = (1 / length(unitXNotNormalized)) * unitXNotNormalized;
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this->unitY = crossProduct(plane.getNormalVector(), this->unitX);
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}
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SimplePoint2d Projection2d::project(const SimplePoint3d& point) const
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{
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double x = unitX * Vector3d(this->origin, point);
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double y = unitY * Vector3d(this->origin, point);
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return SimplePoint2d(x, y);
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} |