патч

geometry/polygon.h

@@ -0,0 +1,58 @@
+#pragma once
+#include "geometry.h"
+
+
+
+class Polygon_exception {
+
+};
+
+class Polygon :
+	public Geometry_figure
+{
+private:
+	vector <Point> points;
+	vector <double> sides;
+
+	void calc_sides();
+public:
+	Polygon();
+	template <class value_class> Polygon(vector <value_class> coords);
+	template <> Polygon(vector <Point> coords);
+	double calc_area();
+	double calc_perimeter();
+	void name();
+
+};
+
+template<class value_class>
+inline Polygon::Polygon(vector<value_class> coords)
+{
+	int coor_size = coords.size();
+	if (coor_size % 2 != 0 && coor_size < 4) {
+		cout << "Array size is not enough";
+		throw Polygon_exception();
+		
+	}
+	else {
+		for (int i = 0; i < coor_size-1; i+=2)
+			points.push_back(Point(coords[i], coords[i + 1]));
+		calc_sides();
+	}
+}
+
+
+template<>
+inline Polygon::Polygon(vector<Point> coords) {
+	int coor_size = coords.size();
+	if (coor_size % 2 != 0 && coor_size < 2) {
+		cout << "Array size is not enough";
+		throw Polygon_exception();
+
+	}
+	else {
+		for (int i = 0; i < coor_size; i++)
+			points.push_back(coords[i]);
+		calc_sides();
+	}
+}