/// <summary>
/// 图幅号经纬度
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonTFHToLB_Click(object sender, EventArgs e)
{
MapScaleObject scaleObj = null;
double LTL, LTB, RBL, RBB;
string tfh = this.textBoxTFH.Text.Trim();
TFHHelper.GetLTRBPoints(tfh, out scaleObj, out LTL, out LTB, out RBL, out RBB);
if (scaleObj != null)
{
MessageBox.Show(string.Format("比例尺：{0} LTL:{1} LTB:{2} RBL:{3} RBB:{4}", scaleObj.Label, LTL.ToString(), LTB.ToString(), RBL.ToString(), RBB.ToString()));
}
else
{
MessageBox.Show(string.Format("图幅号[{0}]无法解析！", tfh));
}
}