public static GisShapeBase ToShape(IGeometry geometry, IEnumerable<object> data, LayerVector layer)
{
if (geometry == null)
throw new Exception("Cannot convert a null geometry");
GisShapeBase result;
if (geometry is ScreenPoint)
{
var p = geometry as ScreenPoint;
result = new GisShapePoint(layer);
((GisShapePoint)result).Point.X = p.X;
((GisShapePoint)result).Point.Y = p.Y;
}
else if (geometry is LineString)
{
var p = geometry as LineString;
result = new GisShapeArc(layer);
foreach (var c in p.Coordinates)
{
((GisShapeArc)result).Points.Add(new GisPoint(c.X, c.Y));
}
}
else if (geometry is Polygon)
{
var p = geometry as Polygon;
result = new GisShapePolygon(layer);
foreach (var c in p.Coordinates)
{
((GisShapePolygon)result).Points.Add(new GisPoint(c.X, c.Y));
}
foreach (var ir0 in p.InteriorRings)
{
var ir1 = new Collection<GisPoint>();
((GisShapePolygon)result).InteriorRings.Add(ir1);
foreach (var c in ir0.Coordinates)
{
ir1.Add(new GisPoint(c.X, c.Y));
}
}
}
else if (geometry is MultiPolygon)
{
var p = geometry as MultiPolygon;
result = new GisShapeMultiPolygon(layer);
foreach (var g in p.Geometries)
{
var child = new GisShapeMultiPolygon.PolygonGeometry();
((GisShapeMultiPolygon)result).Geometries.Add(child);
foreach (var c in g.Coordinates)
{
child.Points.Add(new GisPoint(c.X, c.Y));
}
foreach (var ir0 in ((Polygon)g).InteriorRings)
{
var ir1 = new Collection<GisPoint>();
child.InteriorRings.Add(ir1);
foreach (var c in ir0.Coordinates)
{
ir1.Add(new GisPoint(c.X, c.Y));
}
}
}
}
else
{
throw new NotImplementedException("Other geometries are not implemented");
}
int i = 0;
foreach(var d in data)
{
string key = layer.Fields[i].Name;
result[key] = d;
i++;
}
return result;
}
void GetFeaturesCompleted(object sender, DownloadStringCompletedEventArgs e)
{
GisShapeCollection features = new GisShapeCollection();
try
{
XDocument doc;
var settings = new XmlReaderSettings();
settings.DtdProcessing = DtdProcessing.Ignore;
using (XmlReader reader = XmlReader.Create(new StringReader(e.Result), settings))
{
doc = XDocument.Load(reader);
}
var docRoot = doc.Element("rss");
if (docRoot == null) return;
var xchannel = docRoot.Element("channel");
if (xchannel == null) return;
Title = xchannel.Element("title") != null ? xchannel.Element("title").Value : "";
Link = xchannel.Element("link") != null ? xchannel.Element("link").Value : "";
Description = xchannel.Element("description") != null ? xchannel.Element("description").Value : "";
Author = xchannel.Element("author") != null ? xchannel.Element("author").Value : "";
Updated = xchannel.Element("updated") != null ? Parser.StringAsDateTime(xchannel.Element("updated").Value) : DateTime.MinValue;
var ximage = xchannel.Element("image");
if (ximage != null)
{
ImageUrl = ximage.Element("url") != null ? ximage.Element("url").Value : "";
ImageLink = ximage.Element("link") != null ? ximage.Element("link").Value : "";
ImageTitle = ximage.Element("title") != null ? ximage.Element("title").Value : "";
ImageHeight = ximage.Element("height") != null ? Parser.StringAsInteger(ximage.Element("height").Value, 0) : 0;
ImageWidth = ximage.Element("width") != null ? Parser.StringAsInteger(ximage.Element("width").Value, 0) : 0;
}
var xitems = xchannel.Descendants("item");
if (xitems == null) return;
foreach (XElement xitem in xitems)
{
GisShapePoint p = new GisShapePoint(null);
var keys = new Collection<string>();
keys.Add("magnitudo");
keys.Add("date");
keys.Add("link");
keys.Add("depth");
keys.Add("title");
keys.Add("description");
p.PopulateTypes(keys);
string title = xitem.Element("title") != null ? xitem.Element("title").Value : "";
p["title"] = title;
string link = xitem.Element("link") != null ? xitem.Element("link").Value : "";
p["link"] = link;
string description = xitem.Element("description") != null ? xitem.Element("description").Value : "";
p["description"] = description;
/*Esempio description: <a href='http://cnt.rm.ingv.it/data_id/7232002670/event.html'><img width='225' height='225' border='0' src='http://cnt.rm.ingv.it/data_id/7232002670/map_loc_t.jpg' alt='epicentro evento' align='left' /></a><p style='color: #333333;font: 14;line-height: 28'> ID: 7232002670<br /> Data: 10/02/2014 07.07.40<br /> Magnitudo: 2.0<br /> Distretto: France<br /> Lat: 45.336 - Lon: 6.543<br /> Profondità: 10.0 km</p> */
if ((description.Contains("Lon: ")) && (description.Contains("Lat: ")))
{
int indexId0 = description.IndexOf(@"http://cnt.rm.ingv.it/data_id/");
int indexId1 = description.IndexOf(@"/event", indexId0);
String sid = description.Substring(indexId0 + 30, indexId1 - indexId0 - 30);
Int64 id;
Int64.TryParse(sid, out id);
p.UID = id;
int indexLon0 = description.IndexOf("Lon: ");
int indexLon1 = description.IndexOf("<br", indexLon0);
String sLon = description.Substring(indexLon0 + 10, indexLon1-indexLon0 - 10);
int indexLat0 = description.IndexOf("Lat: ");
int indexLat1 = description.IndexOf(" -", indexLat0);
String sLat = description.Substring(indexLat0 + 10, indexLat1-indexLat0-10);
p.Point.Y = Parser.StringAsDouble(sLat, -1);
p.Point.X = Parser.StringAsDouble(sLon, -1);
int indexMagnitudo0 = description.IndexOf("Magnitudo: ");
int indexMagnitudo1 = description.IndexOf("<br", indexMagnitudo0);
String magnitudo = description.Substring(indexMagnitudo0 + 16, indexMagnitudo1-indexMagnitudo0-16);
p["magnitudo"] = magnitudo;
int indexData0 = description.IndexOf("Data: ");
int indexData1 = description.IndexOf("<br", indexData0);
String date = description.Substring(indexData0 + 11, indexData1 -indexData0 -11);
p["date"] = date;
}
features.Add(p);
}
}
catch (Exception ex)
{
throw;
}
finally
{
BusyState = false;
if (OnGetFeaturesCompleted != null)
OnGetFeaturesCompleted(sender, new FeaturesEventArgs(features));
}
}