def DrawX(self, dc: wx.BufferedPaintDC, colour: wx.Colour, x, y):
pen = wx.Pen(colour)
pen.SetWidth(self.d / 20)
dc.SetPen(pen)
dc.SetBrush(wx.Brush(colour))
dc.DrawLine((x + 0.4) * self.d, (y + 0.4) * self.d, (x + 0.6) * self.d,
(y + 0.6) * self.d)
dc.DrawLine((x + 0.4) * self.d, (y + 0.6) * self.d, (x + 0.6) * self.d,
(y + 0.4) * self.d)
