다각형 그리기

radius = 200; polygons = 3; width = 1; center.x = 300; center.y = 300; void CRectangleView::OnPaint() { CPaintDC dc(this); // device context for painting // TODO: 여기에 메시지 처리기 코드를 추가합니다. // 그리기 메시지에 대해서는 CView::OnPaint()을(를) 호출하지 마십시오. CPen pen(PS_SOLID, width, RGB(0, 0, 255)); CPen *OldPen = dc.SelectObject(&pen); double omega; if(polygons % 2 == 0){ omega = M_PI/polygons; } else{ omega = 0; } dc.BeginPath(); dc.MoveTo((int)(center.x - sin(omega)*radius), (int)(center.y-cos(omega)*radius)); for(int i = 1; i<=polygons; i++) dc.LineTo((int)(center.x - sin(omega+i*2*M_PI/polygons)*radius), (int)(center.y-cos(omega+i*2*M_PI/polygons)*radius)); dc.EndPath(); dc.StrokePath(); dc.SelectObject(OldPen); CString str; str.Format(_T("X : %d Y : %d Polygons : %d width : %d"), MousePosition.x, MousePosition.y, polygons, width); dc.TextOutW(200, 600, str); }