我想在 C# 中创建一个 kml 文件。现在我有两个问题:
在 xml 文件中添加 kml 元素以便在我的 kml 文件中包含以下行的 synatx 是什么?
<kml xmlns="http://www.opengis.net/kml/2.2">
我有一个点数组,我想形成一个线串。我想如何在 xml 中为 kml 文件填充坐标元素?以下是我的代码。
代码:
public void MakeKmlFile(string line)
{
CoordinateCollection coordinates = new CoordinateCollection();
char[] delimiterLine = { '|' };
char[] delimiterPoint = { ',' };
string[] route = line.Split(delimiterLine);
foreach (string point in route)
{
string[] route_point = line.Split(delimiterPoint);
double lat = double.Parse(route_point[1]);
double lon = double.Parse(route_point[0]);
coordinates.Add(new Vector(lat, lon));
}
XmlTextWriter writer = new XmlTextWriter("route.xml", System.Text.Encoding.UTF8);
writer.Formatting = Formatting.Indented;
writer.WriteStartElement("Document");
writer.WriteStartElement("Folder");
writer.WriteStartElement("name");
writer.WriteString("route");
writer.WriteEndElement();
writer.WriteStartElement("Placemark");
writer.WriteStartElement("Style");
writer.WriteStartElement("LineStyle");
writer.WriteStartElement("color");
writer.WriteString("ff0000ff");
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteStartElement("PolyStyle");
writer.WriteStartElement("fill");
writer.WriteString("2");
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteStartElement("LineString");
writer.WriteStartElement("coordinates");
这是我得到的结果:
<?xml version="1.0" encoding="utf-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document>
<Name>Points.kml</Name>
<Placemark />
<Placemark />
<Placemark />
<Placemark />
<Placemark />
</Document>