private TrackPointItem GetLocData(string trkptXml)
{
string lon = string.Empty;
string lat = string.Empty;
string sEle = string.Empty;
string sTime = string.Empty;
string sSpeed = string.Empty;
using (System.Xml.XmlReader xr = System.Xml.XmlReader.Create(new System.IO.StringReader(trkptXml)))
{
while (xr.Read())
{
switch (xr.NodeType)
{
case System.Xml.XmlNodeType.Element:
if (0 == string.Compare(xr.Name, "ele", true))
{
sEle = xr.ReadString();
}
else if (0 == string.Compare(xr.Name, "time", true))
{
sTime = xr.ReadString();
}
else if (0 == string.Compare(xr.Name, "speed", true))
{
sSpeed = xr.ReadString();
}
else if (0 == string.Compare(xr.Name, "trkpt", true))
{
lon = xr.GetAttribute("lon");
lat = xr.GetAttribute("lat");
}
break;
}
}
}
TrackPointItem trkPt = new TrackPointItem(lon, lat, DateTime.Parse(sTime));
trkPt.Speed = sSpeed;
trkPt.Ele = sEle;
return trkPt;
}
/// <summary>
/// GPXファイルの読み込み
/// </summary>
/// <param name="filePath">GPXファイルのパス</param>
/// <returns>PGXから読み込んだ座標情報リスト</returns>
private static List<TrackPointItem> LoadGpxFile(string filePath)
{
List<TrackPointItem> trkPtList = new List<TrackPointItem>();
using (System.Xml.XmlReader xr = System.Xml.XmlReader.Create(new System.IO.StreamReader(filePath)))
{
while (xr.Read())
{
switch (xr.NodeType)
{
case System.Xml.XmlNodeType.Element:
if (0 == string.Compare(xr.Name, "trkpt", true))
{
if (!xr.IsEmptyElement)
{
string lon = xr.GetAttribute("lon");
string lat = xr.GetAttribute("lat");
string sEle = string.Empty;
string sTime = string.Empty;
string sSpeed = string.Empty;
while( xr.Read())
{
switch( xr.NodeType)
{
case System.Xml.XmlNodeType.Element:
if (0 == string.Compare(xr.Name, "ele", true))
{
sEle = xr.ReadString();
}
else if (0 == string.Compare(xr.Name, "time", true))
{
sTime = xr.ReadString();
}
else if (0 == string.Compare(xr.Name, "speed", true))
{
sSpeed = xr.ReadString();
}
else
{
if( !xr.IsEmptyElement)
{
while (xr.Read())
if (xr.NodeType == System.Xml.XmlNodeType.EndElement) break;
}
}
continue;
case System.Xml.XmlNodeType.EndElement:
break;
default:
continue;
}
break;
}
DateTime dt;
if (DateTime.TryParse(sTime, out dt))
{
TrackPointItem item = new TrackPointItem(lon, lat, dt);
item.Speed = sSpeed;
item.Ele = sEle;
trkPtList.Add(item);
}
}
}
break;
}
}
}
return trkPtList;
}
