i am trying to load the elevation (ele tag) from a gpx file and display the values on a chart.
my page takes 12min:12s to load. what is the problem? what i'm making wrong?
here is the file gpx: download
and the code:
please help!
thanks anvanced!
my page takes 12min:12s to load. what is the problem? what i'm making wrong?
here is the file gpx: download
and the code:
string MyXmlFile = Server.MapPath(".\\Upload\\") + "Tour_2357.xml"; |
DataSet ds = new DataSet(); |
XmlDocument xmlDoc = new XmlDocument(); |
xmlDoc.Load(MyXmlFile); |
StringBuilder sb = new StringBuilder(); |
ArrayList sbx=new ArrayList(); |
XmlNodeList nodes = xmlDoc.GetElementsByTagName("ele"); |
for (int i = 0; i < nodes.Count; i++) |
{ |
sbx.Add(nodes.Item(i).ChildNodes[0].InnerText.ToString()); |
sb.Append(nodes.Item(i).ChildNodes[0].InnerText); |
sb.Append(Environment.NewLine); |
} |
XmlNodeList nodesX = xmlDoc.GetElementsByTagName("trkpt"); |
latlbl.Text = nodesX.Item(0).Attributes["lat"].Value.ToString(); |
lonlbl.Text = nodesX.Item(0).Attributes["lon"].Value.ToString(); |
latlbl1.Text = nodesX.Item(nodesX.Count-1).Attributes["lat"].Value.ToString(); |
lonlbl1.Text = nodesX.Item(nodesX.Count-1).Attributes["lon"].Value.ToString(); |
TextBox1.Text = sb.ToString(); |
RadChart1.DataSource = sbx.ToArray(); |
RadChart1.DataBind(); |
foreach (ChartSeries series in RadChart1.Series) |
{ |
series.DefaultLabelValue = " "; |
series.Appearance.PointMark.Visible = true; |
foreach (ChartSeriesItem item in series.Items) |
{ |
if (item.YValue > 0) |
{ |
item.ActiveRegion.Tooltip = item.YValue.ToString("F") + " m "; |
} |
else if (item.YValue == 0) |
{ |
item.ActiveRegion.Tooltip = item.YValue.ToString("F") + " m "; |
} |
else |
{ |
item.ActiveRegion.Tooltip = item.YValue.ToString("F") + " m "; |
} |
} |
series.PlotArea.XAxis.Appearance.MajorGridLines.Visible = false; |
series.PlotArea.XAxis.Appearance.MinorGridLines.Visible = false; |
series.Appearance.LabelAppearance.RotationAngle = 45; |
series.Appearance.LabelAppearance.Distance = 10; |
} |
please help!
thanks anvanced!