Ошибка C2248

#pragma once
#include "afxwin.h"
struct forhc {
    double X;
    double Y;
};
 
class HCGraph :
    public CStatic
{
public:
    
    HCGraph();
    ~HCGraph();
    DECLARE_MESSAGE_MAP()
    afx_msg void OnPaint();
 void drawCircle(double Rad, double degr);
    MightyHandler m_handler;
    void HCPainter(double RadBig, double RadSmall);
    forhc HCcntr(double RadBig, double RadSmall, double f);
};

void HCGraph::HCPainter(double RadBig, double RadSmall)
{
    CPaintDC dc(this);
    CRect rc;
    GetClientRect(rc);
    CPen penB;
    CPen*pOld = dc.SelectObject(&penB);
    std::vector<CPoint> m_vecFn;
    CPoint ct;
    for (double f = 0; f <= 360; f++)
    {
        forhc cntr;
        cntr = HCcntr(RadBig, RadSmall, f);
        ct.x = cntr.X;
        ct.y = cntr.Y;
        m_vecFn.push_back(ct);
    }
    std::vector<CPoint>::iterator it = m_vecFn.begin();
    dc.MoveTo(*it);
    for (it++; it != m_vecFn.end(); it++)
    {
        dc.LineTo(*it);
    }
}
 
 
forhc HCGraph::HCcntr(double RadBig, double RadSmall, double f)
{
    forhc DC;
    double k = RadBig / RadSmall;
    DC.X= RadSmall*(k - 1)*(cos(f) + cos((k - 1)*f) / (k - 1));
    DC.Y= RadSmall*(k - 1)*(sin(f) + sin((k - 1)*f) / (k - 1));
    return DC;
}

void CHC_makerv14Dlg::OnBnClickedButton1()
{
    CWnd *pW = GetDlgItem(IDC_EDIT1);
    CString exmp1;
    pW->GetDlgItemTextW(IDC_EDIT1, exmp1);
    double RadBig = _wtof(exmp1);
 
    CString exmp2;
    pW = GetDlgItem(IDC_EDIT2);
    pW->GetDlgItemTextW(IDC_EDIT1, exmp1);
    double RadSmall = _wtof(exmp2);
    //hc_graph.drawCircle(RadBig, 90);
    hc_graph.HCPainter(RadBig, RadSmall); //ругается конкретно на эту строчку
    
}