<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2"
xmlns:gx="http://www.google.com/kml/ext/2.2"
xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/Atom">
<Document>
<name>Untitled Folder.kmz</name>
<Style id="s_ylw-pushpin0">
<IconStyle>
<scale>1.1</scale>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png</href>
</Icon>
<hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
</IconStyle>
</Style>
<Style id="s_ylw-pushpin_hl00">
<IconStyle>
<scale>1.3</scale>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png</href>
</Icon>
<hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
</IconStyle>
</Style>
<Style id="s_ylw-pushpin_hl0">
<IconStyle>
<scale>1.3</scale>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png</href>
</Icon>
<hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
</IconStyle>
</Style>
<StyleMap id="m_ylw-pushpin0">
<Pair>
<key>normal</key>
<styleUrl>#s_ylw-pushpin0</styleUrl>
</Pair>
<Pair>
<key>highlight</key>
<styleUrl>#s_ylw-pushpin_hl00</styleUrl>
</Pair>
</StyleMap>
<StyleMap id="m_ylw-pushpin">
<Pair>
<key>normal</key>
<styleUrl>#s_ylw-pushpin</styleUrl>
</Pair>
<Pair>
<key>highlight</key>
<styleUrl>#s_ylw-pushpin_hl0</styleUrl>
</Pair>
</StyleMap>
<Style id="s_ylw-pushpin">
<IconStyle>
<scale>1.1</scale>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png</href>
</Icon>
<hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
</IconStyle>
</Style>
<Folder>
<name>Untitled Folder</name>
<open>1</open>
<Placemark>
<name>4</name>
<styleUrl>#m_ylw-pushpin</styleUrl>
<LineString>
<tessellate>1</tessellate>
<coordinates>
80.39720270023678,14.81309175627283,0 80.42184703577358,15.30217528568833,0
</coordinates>
</LineString>
</Placemark>
<Placemark>
<name>3</name>
<styleUrl>#m_ylw-pushpin</styleUrl>
<LineString>
<tessellate>1</tessellate>
<coordinates>
80.99282826200491,14.7585958192514,0 80.39353985420162,14.80969021928927,0
</coordinates>
</LineString>
</Placemark>
<Placemark>
<name>2</name>
<styleUrl>#m_ylw-pushpin</styleUrl>
<LineString>
<tessellate>1</tessellate>
<coordinates>
81.03730709247927,15.27205299521836,0 80.99634866995486,14.75503556947802,0
</coordinates>
</LineString>
</Placemark>
<Placemark>
<name>1</name>
<styleUrl>#m_ylw-pushpin0</styleUrl>
<LineString>
<tessellate>1</tessellate>
<coordinates>
80.41501791166907,15.31966921785412,0 80.66681262872422,15.30770770315245,0 81.04469571795477,15.27884283211159,0
</coordinates>
</LineString>
</Placemark>
</Folder>
这是XML文件。我需要以这种方式从这个文件中获取坐标值 80.41501791166907,15.31966921785412 80.66681262872422,15.30770770315245 81.04469571795477,15.27884283211159
81.03730709247927,15.27205299521836 80.99634866995486,14.75503556947802
我使用的代码没有显示错误但是当我运行它时返回null异常
private void button33_Click_1(object sender, EventArgs e)
{
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK)
{
DialogResult result2 = folderBrowserDialog1.ShowDialog();
if (result2 == DialogResult.OK)
{
ZipFile.ExtractToDirectory(openFileDialog1.FileName, folderBrowserDialog1.SelectedPath);
MessageBox.Show("ZIP file extracted successfully!");
}
}
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Multiselect = true;
openFileDialog.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*";
openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
if (openFileDialog.ShowDialog(this) == DialogResult.OK)
{
XNamespace xns = "http://www.opengis.net/kml/2.2";
XDocument xdInput = XDocument.Load(openFileDialog.FileName);
XElement xeDocument = xdInput.Root.Element(xns + "Document");
XElement xePlaceMark = xeDocument.Element(xns + "Placemark");
XElement xeCoord = xePlaceMark.Descendants(xns + "coordinates").First();
// string[] lines = Regex.Split(xeCoord.Value, @"\,\0,\ ");
string[] lines = xeCoord.Value.Trim().Split(new string[] {",0 "}, StringSplitOptions.RemoveEmptyEntries);
/* File.WriteAllLines(@"C:\Temp\Output.txt", lines);
string strFilename = openFileDialog.FileName;
XmlDocument xmlDoc = new XmlDocument();
if (File.Exists(strFilename))
{
xmlDoc.Load(strFilename);
string xmlFile = File.ReadAllText(strFilename);
XmlDocument xmldoc = new XmlDocument();
xmldoc.LoadXml(xmlFile);
XmlNodeList nodeList = xmldoc.GetElementsByTagName("coordinates");
string coordinates = string.Empty;
foreach (XmlNode node in nodeList)
{ coordinates = node.InnerText;
string[] lst = coordinates.Split(" ".ToCharArray());
foreach (string str in lst)
{
coordinates += str + Environment.NewLine;
}
}*/
SaveFileDialog savefile = new SaveFileDialog();
savefile.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*";
if (savefile.ShowDialog() == DialogResult.OK)
//{ using (StreamWriter sw = new StreamWriter(savefile.FileName))
{
File.WriteAllLines(savefile.FileName, lines);
MessageBox.Show("Long/Lat coordinates extracted successfully!");
// sw.WriteLine(lines);
// sw.Flush();}
}
}
}
答案 0 :(得分：0)
假设您的XML文件格式正确，以下内容可帮助您提取所需的数据并逐行将其插入文本文件。
string pathToXmlFile = "";
XDocument document = XDocument.Load(pathToXmlFile);
var coordinates = document.Descendants("coordinates");
string pathToTextFile = "";
StreamWriter streamWriter = new StreamWriter(pathToTextFile);
foreach (XElement coordinate in coordinates)
{
streamWriter.WriteLine(coordinate.Value);
Console.WriteLine(coordinate.Value);
}
streamWriter.Close();