diff options
1 files changed, 30 insertions, 0 deletions
| -rw-r--r-- | Sem. 14/Shapes/Triangle.cpp | 30 |
diff --git a/Sem. 14/Shapes/Triangle.cpp b/Sem. 14/Shapes/Triangle.cpp new file mode 100644 index 0000000..e13d685 --- /dev/null +++ b/Sem. 14/Shapes/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 |