using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.xml;
using?System.IO;

namespace?CoordinateTransformation
{
????public?partial?class?高斯鄰帶換算?:?Form
????{
????????public?高斯鄰帶換算（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?高斯鄰帶換算_Load（object?sender?EventArgs?e）
????????{
????????????dataGridView1.AutoGenerateColumns?=?false;
????????????dataGridView1.GridColor?=?System.Drawing.Color.Chocolate;
????????????dataGridView1.SelectionMode?=?DataGridViewSelectionMode.RowHeaderSelect;

????????????xmlDocument?xdoc?=?new?xmlDocument（）;
????????????xdoc.Load（“..//..//Params.xml“）;
????????????xmlNodeList?xlist?=?xdoc.GetElementsByTagName（“type“）;
????????????foreach?（xmlNode?node?in?xlist）
????????????{
????????????????cmbNorm.Items.Add（node[“name“].InnerText）;
????????????}
????????????cmbNorm.SelectedIndex?=?0;
????????}

????????static?double?a?=?0?b?=?0;
????????private?double?Pow（double?dbl?double?no）
????????{
????????????return?Math.Pow（dbl?no）;
????????}
????????//獲取橢球參數(shù)ae2
????????private?void?cmbNormSelectedChanged（object?sender?EventArgs?e）
????????{
????????????string?str?=?null;
????????????try
????????????{
????????????????str?=?cmbNorm.SelectedItem.ToString（）;
????????????}
????????????catch
????????????{
????????????????MessageBox.Show（“基準(zhǔn)未選擇“）;
????????????}
????????????xmlDocument?xdoc?=?new?xmlDocument（）;
????????????xdoc.Load（“..//..//Params.xml“）;
????????????xmlNodeList?normlist?=?xdoc.GetElementsByTagName（“type“）;
????????????foreach?（xmlNode?node?in?normlist）
????????????{
????????????????if?（node[“name“].InnerText?==?str）
????????????????{
????????????????????a?=?Convert.ToDouble（node[“a“].InnerText）;
????????????????????b?=?Convert.ToDouble（node[“b“].InnerText）;
????????????????????break;
????????????????}
????????????}
????????}

????????//?高斯換算???
????????private?void?btnCal_Click（object?sender?EventArgs?e）
????????{

????????}

????????//?重置按鈕事件
????????private?void?btnReset_Click（object?sender?EventArgs?e）
????????{
????????????txbX1.Text?=?““;
????????????txbY1.Text?=?““;
????????????txbX2.Text?=?““;
????????????txbY2.Text?=?““;
????????}

????????//?打開(kāi)文件按鈕
????????private?void?btnFileInput_Click（object?sender?EventArgs?e）
????????{
????????????OpenFileDialog?open?=?new?OpenFileDialog（）;
????????????open.Filter?=?“文本文件|*.txt|Word文件|*.doc“;
????????????open.InitialDirectory?=?“D:\\“;
????????????open.RestoreDirectory?=?true;
????????????if?（open.ShowDialog（）?==?DialogResult.OK）
????????????{
????????????????FileStream?fs?=?new?FileStream（open.FileName?FileMode.Open）;
????????????????StreamReader?sr?=?new?StreamReader（fs）;
????????????????while?（!sr.EndOfStream）
????????????????{
????????????????????string?line?=?sr.ReadLine（）;
???????????????????