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1 files changed, 31 insertions, 0 deletions
| -rw-r--r-- | Polymorphism/Triangle.cpp | 31 |
diff --git a/Polymorphism/Triangle.cpp b/Polymorphism/Triangle.cpp new file mode 100644 index 0000000..18dd93e --- /dev/null +++ b/Polymorphism/Triangle.cpp @@ -0,0 +1,31 @@ +#include "Triangle.h"
+
+Triangle::Triangle(int x1, int y1, int x2, int y2, int x3, int y3) : Shape(3)
+{
+ setPoint(x1, y1, 0);
+ setPoint(x2, y2, 1);
+ setPoint(x3, y3, 2);
+}
+
+double Triangle::getArea()
+{
+ double sideA = getPoint(0).getDist(getPoint(1));
+ double sideB = getPoint(1).getDist(getPoint(2));
+ double sideC = getPoint(2).getDist(getPoint(0));
+
+ double halfPer = getPer() / 2;
+
+ return sqrt(halfPer * (halfPer - sideA) *
+ (halfPer - sideB) * (halfPer - sideC));
+}
+double Triangle::getPer()
+{
+ return getPoint(0).getDist(getPoint(1)) +
+ getPoint(1).getDist(getPoint(2)) +
+ getPoint(2).getDist(getPoint(0));
+}
+Shape* Triangle::clone()
+{
+ Triangle* newTriangle = new Triangle(*this);
+ return newTriangle;
+}
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