97 lines
3.0 KiB
C++
97 lines
3.0 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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A pligon formed by a sequence of N points, where the last point is equal to
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the first. The points go from 0 to N - 1
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Developed in 16/11/96 by Geraldo Zimbrao da Silva
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May, 2007 Leonardo Azevedo, Rafael Brand
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*/
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#ifndef POLIGONO_H
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#define POLIGONO_H
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#ifdef DEBUG
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#include <myheap.h>
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#endif
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#include "Plane.h"
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//#include "plano4CRS.h"
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//#include <stdio.h>
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#include "vhline.h"
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class istream;
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class ostream;
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class Signature4CRS;
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class Poligon
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{
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public:
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// --- Attributes ----------------------------------------------------
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const unsigned numberOfPoints;
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// Number of points of the poligon. One more than the number of vertices
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const Coordinate * const points;
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// List of points.
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// --- Constructors and Destructor -------------------------------------
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Poligon( const Poligon& );
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Poligon( unsigned numberOfPoints, Coordinate points[] );
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//Poligon manages the list of points, desalocating then in his desctructor
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~Poligon();
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// --- Modifiers ------------------------------------------------
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void move( Coordinate );
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void move( long x, long y );
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// Moves the poligon accorgin to the vector (x, y).
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void turn( int angle );
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// Turns the poligon in 'angle' degrees around the point (0,0).
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void scale( int factor );
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// If factor == 0, mantains the original size.
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// If factor > 0, multiplies the factor.
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// If factor < 0, divides by abs( factor ).
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void scaleF( double factor );
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// Just multiplies by factor.
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// --- Selectors ----------------------------------------------------
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MBR mbr() const;
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// Returns MBR.
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Plane minimumPlane( long* sizeOfCell,
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unsigned* numberOfCellsX,
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unsigned* numberOfCellsY ) const;
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long double area() const;
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// Returns the area of the poligon.
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protected:
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// --- Constructors and Destructor -------------------------------------
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Poligon( Coordinate points[], unsigned numberOfPoints );
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// Poligon does not assumes the management of the list
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// of points, not desalocating then in his desctructor
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private:
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// --- Attributes ----------------------------------------------------
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Coordinate *buffer;
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};
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#endif
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