private void DrawArea_MouseWheel(object sender, MouseEventArgs e) { this.Invalidate(); if (e.Delta > 0) { GraphicsSetter.ReScalebyPixels(1); } else { GraphicsSetter.ReScalebyPixels(-1); } }
/// <summary> /// 鼠标滚轮放大缩小路网 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void SimCartoon_MouseWheel(object sender, MouseEventArgs e) { this.Invalidate(); if (e.Delta > 0) { GraphicsSetter.ScaleByPixels(2); } else { GraphicsSetter.ScaleByPixels(-2); } }