167 lines
3.0 KiB
C++
167 lines
3.0 KiB
C++
#include "area.hh"
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#include "building.hh"
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using namespace std ;
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/* *** Constructors *** */
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Area::Area(const Building *_building, const string &_name,
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const Point3D &p1, const Point3D &p2):
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building(const_cast<Building*>(_building)), name(_name)
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{
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set_coordinates(p1, p2) ;
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}
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/* *** Operations *** */
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/**
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* @return \em true if \em p is into the Area.
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* @return \em false if \em p is not into the Area.
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*/
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bool Area::contains_point(const Point3D &p) const
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{
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return
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p.get_x() >= p_min.get_x() &&
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p.get_x() <= p_max.get_x() &&
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p.get_y() >= p_min.get_y() &&
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p.get_y() <= p_max.get_y() &&
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p.get_z() >= p_min.get_z() &&
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p.get_z() <= p_max.get_z() ;
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}
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/**
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* Changes the Area coordinates so that #p_min is the South-West-lower
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* point and #p_max the North-East-higher point.
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*/
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void Area::reorder_coordinates()
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{
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float
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x1 = p_min.get_x(),
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y1 = p_min.get_y(),
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z1 = p_min.get_z(),
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x2 = p_max.get_x(),
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y2 = p_max.get_y(),
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z2 = p_max.get_z(),
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x_min, x_max, y_min,
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y_max, z_min, z_max ;
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// 2-D coordinates (X and Y) //
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// First point is North-West
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if (x1 < x2 && y1 > y2)
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{
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x_min = x1 ;
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x_max = x2 ;
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y_min = y2 ; // We swap the two Y
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y_max = y1 ;
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}
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// First point is South-East
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else if (x1 > x2 && y1 < y2)
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{
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x_min = x2 ; // We swap the two X
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x_max = x1 ;
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y_min = y1 ;
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y_max = y2 ;
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}
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// First point is North-East
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else if (x1 > x2 && y1 > y2)
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{
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x_min = x2 ; // We swap the two X
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x_max = x1 ;
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y_min = y2 ; // and we swap the two Y
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y_max = y1 ;
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}
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// First point is South-West
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// (or other cases such as null coordinates)
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else
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{
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// We swap nothing
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x_min = x1 ;
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x_max = x2 ;
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y_min = y1 ;
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y_max = y2 ;
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}
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// Vertical coordinate (Z) //
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// First point is lower
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if (z1 < z2)
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{
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z_min = z1 ;
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z_max = z2 ;
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}
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// First point is higher
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else
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{
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// We swap the two Z
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z_min = z2 ;
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z_max = z1 ;
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}
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p_min = Point3D(x_min, y_min, z_min) ;
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p_max = Point3D(x_max, y_max, z_max) ;
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}
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/* *** Operators *** */
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const Area& Area::operator=(const Area &source)
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{
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if (this == &source)
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return *this ;
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building = source.building ;
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name = source.name ;
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p_min = source.p_min ;
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p_max = source.p_max ;
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return *this ;
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}
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bool Area::operator==(const Area &source) const
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{
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if (this == &source)
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return true ;
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return
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building == source.building &&
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name == source.name &&
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p_min == source.p_min &&
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p_max == source.p_max ;
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}
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/**
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* Note: to avoid looping, the Building associated with the Area is
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* not displayed.
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*/
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ostream &operator<<(ostream &os, const Area &a)
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{
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os
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<< (a.building ? a.building->get_name() : "No building") << ';'
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<< a.name << ';'
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<< a.p_min.get_x() << ';'
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<< a.p_max.get_x() << ';'
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<< a.p_min.get_y() << ';'
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<< a.p_max.get_y() << ';'
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<< a.p_min.get_z() << ';'
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<< a.p_max.get_z() ;
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return os ;
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}
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