хелп

//classes.h//

class Geometry
{
private:
	vector < vector < double > > lambda_bb;
	public:
	void AllocateMemory(int Mx, int My);
};

class Polar : public  Geometry
{
public:
	void PolarMemory(int Mx, int My);
	void UpdateVolume(int Mx,int My);
	Polar(int Mx, int My) {
	}
	void (int x, int y);
	private:
	vector < vector < double > > volume;
};

//classes.cpp//
#include "classes.h"

void Geometry::AllocateMemory(int x, int y) {
		lambda_bb.assign(x+2, vector<double>(y+2, 0));
	};

void Polar::PolarMemory(int Mx, int My){
		lambda_bb.assign(x+2, vector<double>(y+2, 0));
};

void Polar::UpdateVolume(int Mx,int My) {
		int delta_h = 1;
		for (int i = 1; i < Mx + 1; ++i) {
			for (int j = 1; j < My + 1; ++j) {
				volume[i][j] = 0.5*My*(i *i - (i - 1) * (i - 1))*delta_h;
			}
		}
	}

//main.cpp//
#include "classes.h"

if (key == "polar") {
		Polar::Geometry polar;
		polar.SetNumberOfLayers(Mx, My);//ошибка

	}