From eda2b5dee821c474644cd72df4d0bd93b0940ec6 Mon Sep 17 00:00:00 2001 From: angeld55 Date: Tue, 17 May 2022 20:15:26 +0300 Subject: sem 12 --- Sem. 12/Example_polymorphism/Triangle.cpp | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Sem. 12/Example_polymorphism/Triangle.cpp (limited to 'Sem. 12/Example_polymorphism/Triangle.cpp') diff --git a/Sem. 12/Example_polymorphism/Triangle.cpp b/Sem. 12/Example_polymorphism/Triangle.cpp new file mode 100644 index 0000000..7de831c --- /dev/null +++ b/Sem. 12/Example_polymorphism/Triangle.cpp @@ -0,0 +1,24 @@ +#include "Triangle.h" + +Triangle::Triangle(int x1, int y1, int x2, int y2, int x3, int y3) : Shape(3) +{ + setPoint(0, x1, y1); + setPoint(1, x2, y2); + setPoint(2, x3, y3); +} +double Triangle::getArea() const +{ + Shape::point p1 = getPointAtIndex(0); + Shape::point p2 = getPointAtIndex(1); + Shape::point p3 = getPointAtIndex(2); + + return abs(p1.x*p2.y + p2.x*p3.y + p3.x*p1.y - p1.y * p2.x - p2.y*p3.x - p3.y*p1.x) / 2.00; +} +double Triangle::getPer() const +{ + Shape::point p1 = getPointAtIndex(0); + Shape::point p2 = getPointAtIndex(1); + Shape::point p3 = getPointAtIndex(2); + + return p1.getDist(p2) + p2.getDist(p3) + p3.getDist(p1); +} \ No newline at end of file -- cgit v1.3.1-23-gd82d