/// <summary>
/// Open a file and load KML data
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
private void GetPlacemarks(string filename)
{
// open the KML
_parser.ParseString(File.ReadAllText(filename), false);
_data = (Kml)_parser.Root;
Feature feature = _data.Feature;
SharpKml.Dom.Container c = (SharpKml.Dom.Container)feature;
List <Placemark> placemarks = new List <Placemark>();
foreach (Feature f in c.Features)
{
ExtractPlacemarks(f, placemarks);
}
// set the towns
Towns = placemarks;
}
private void ExtractPlaceMarkLineStrings(Feature feature, TreeView trv)
{
// Google Earth Paths are PlaceMarks with a Geometry property of type LineString
// Extract these and add to the treeview object (include also the points)
// Is the passed in value a Placemark?
Placemark placemark = feature as Placemark;
if (placemark != null && placemark.Geometry is LineString)
{
LineString ln = (LineString)placemark.Geometry;
//if (ln.Coordinates.Count > 2) // must have at least 2 points
//{
if (arrRouteNames.Any(s => placemark.Name.ToUpper() == (s)))
{
TreeNode node = trv.Nodes.Add(placemark.Name + " (Path with " + ln.Coordinates.Count.ToString() + " Points)");
// add coordinates as object to the Tag property
node.Tag = new List <Vector>(ln.Coordinates);
}
if (arrNBLNames.Any(s => placemark.Name.ToUpper().Contains(s)))
{
// add NonBacktrack lines directly to list
ListOfNBL.Add(new List <Vector>(ln.Coordinates));
ListOfNBLNames.Add(placemark.Name.ToUpper());
}
// }
}
else
{
// Is it a Container, as the Container might have a child Placemark?
SharpKml.Dom.Container container = feature as SharpKml.Dom.Container;
if (container != null)
{
// Check each Feature to see if it's a Placemark or another Container
foreach (var f in container.Features)
{
ExtractPlaceMarkLineStrings(f, trv);
}
}
}
}
/// <summary>
/// Extracts the placemarks from the feature.
/// </summary>
/// <param name="feature">The feature.</param>
/// <param name="placemarks">The list to add the placemark to.</param>
private static void ExtractPlacemarks(Dom.Feature feature, List <Dom.Placemark> placemarks)
{
// Is the passed in value a Placemark?
Dom.Placemark placemark = feature as Dom.Placemark;
if (placemark != null)
{
placemarks.Add(placemark);
}
else
{
// Is it a Container, as the Container might have a child Placemark?
Dom.Container container = feature as Dom.Container;
if (container == null)
{
return;
}
// Check each Feature to see if it's a Placemark or another Container
foreach (var f in container.Features)
{
ExtractPlacemarks(f, placemarks);
}
}
}
TreeViewItem ProcessContainer(Container container)
{
if (container is Document)
{
return ProcessDocument(container as Document);
}
return null;
}