Method OnUpdateScreen

libs/drape_frontend/my_position_controller.cpp:224–229

}

void MyPositionController::OnUpdateScreen(ScreenBase const & screen)
{
  m_pixelRect = screen.PixelRectIn3d();
  if (m_visiblePixelRect.IsEmptyInterior())
    SetVisibleViewport(m_pixelRect);
}

void MyPositionController::SetVisibleViewport(m2::RectD const & rect)
{