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codigoEjemploFacade.cpp
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// 23 de febrero del 2017
#include <math.h>
#include <iostream>
using namespace std;
/********************************************************************/
/** Componentes del susbsistema **/
class Trapecio {
private:
double baseMayor;
double baseMenor;
double altura;
public:
void setValores(double bsMy, double bsMe, double alt) {
baseMayor = bsMy;
baseMenor = bsMe;
altura = alt;
}
double getArea() {
return altura * (baseMayor + baseMenor) / 2.0;
}
};
class Circulo {
private:
double radio;
public:
void setRadio(double rad) {
radio = rad;
}
double getArea() {
return M_PI * radio * radio;
}
};
class Rectangulo {
private:
double base;
double altura;
public:
void setValores(double bas, double alt) {
base = bas;
altura = alt;
}
double getArea() {
return base * altura;
}
};
/********************************************************************/
/** Componente fachada **/
class Fachada {
private:
Trapecio trap;
Circulo cir;
Rectangulo rec;
public:
void setMedidasTrapecio(double bsMy, double bsMe, double alt){
trap.setValores(bsMy, bsMe, alt);
}
void setMedidasCirculo(double rad) {
cir.setRadio(rad);
}
void setMedidasRectangulo(double base, double altura) {
rec.setValores(base, altura);
}
double areaLampara() {
return trap.getArea() + cir.getArea();
}
double areaSombrero() {
return trap.getArea() + rec.getArea();
}
double areaCarrito() {
return trap.getArea() + rec.getArea() + 2 * cir.getArea();
}
double areaCilindro() {
return rec.getArea() + 2 * cir.getArea();
}
};
/********************************************************************/
/** Componente cliente **/
int main(){
Fachada fac;
fac.setMedidasTrapecio(5, 3, 2.5);
fac.setMedidasCirculo(1);
fac.setMedidasRectangulo(8, 4);
cout << "Area de lampara: " << fac.areaLampara() << endl;
cout << "Area de sombrero: " << fac.areaSombrero() << endl;
cout << "Area de carrito: " << fac.areaCarrito() << endl;
cout << "Area de cilindro: " << fac.areaCilindro() << endl;
return 0;
}