From 7f4cfc6c2114b81bc480f05ceebc643598a92d25 Mon Sep 17 00:00:00 2001 From: angeld55 Date: Fri, 28 May 2021 14:27:39 +0300 Subject: added sem 14 --- Sem. 14/ShapesCollection/Triangle.cpp | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Sem. 14/ShapesCollection/Triangle.cpp (limited to 'Sem. 14/ShapesCollection/Triangle.cpp') diff --git a/Sem. 14/ShapesCollection/Triangle.cpp b/Sem. 14/ShapesCollection/Triangle.cpp new file mode 100644 index 0000000..e13d685 --- /dev/null +++ b/Sem. 14/ShapesCollection/Triangle.cpp @@ -0,0 +1,30 @@ +#include "Triangle.h" + +Triangle::Triangle(double x1, double y1, double x2, double y2, double x3, double 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); +} + +Shape* Triangle::clone() const +{ + Triangle* copy = new Triangle(*this); + return copy; +} \ No newline at end of file -- cgit v1.3.1-23-gd82d