/// <summary>
/// Computes a WorldWind URL (as string)
/// </summary>
/// <param name="ww"></param>
/// <returns></returns>
public String GotoURL(WorldWindow ww)
{
WorldWindUri uri = new WorldWindUri();
uri.Latitude = Angle.FromDegrees(this.pn.Lat);
uri.Longitude = Angle.FromDegrees(this.pn.Lon);
return(uri.ToString());
}
/// <summary>
/// Parses a worldwind uri string
/// Updated by CM = worldwind://goto/lat=51.41&lon=5.479
/// or worldwind://goto/lat=51.41&lon5.479&view=0.25
/// or
/// worldwind://wmsimage=displayname%3Dtestlayer%2526transparency%3D50%2526altitude%3D10000%2526link%3Dhttp%3A%2F%2Fviz.globe.gov%2Fviz-bin%2Fwmt.cgi%3Fservice%3DWMS%26version%3D1.1.1%26request%3DGetMap%26layers%3DRATMAX%26format%3Dimage%2Fpng%26width%3D512%26height%3D512%26bbox%3D-180%2C-90%2C180%2C90%26srs%3DEPSG%3A4326
/// </summary>
/// <param name="worldWindUri"></param>
/// <returns></returns>
public static WorldWindUri Parse(string worldWindUri)
{
try
{
WorldWindUri uri = new WorldWindUri();
worldWindUri = worldWindUri.Trim();
uri._preserveCase = worldWindUri; //set our case-sensitive one, hack for worldwind://install=
//then continue as before
worldWindUri = worldWindUri.ToLower(CultureInfo.InvariantCulture);
uri._rawUrl = worldWindUri;
if (!worldWindUri.StartsWith(Scheme + "://"))
{
throw new UriFormatException("Invalid protocol, expected " + Scheme + "://");
}
string url = worldWindUri.Replace(Scheme + "://", "");
if (url.Length == 0)
{
throw new UriFormatException("Incomplete URI");
}
//url = url.Replace("///", "!"); // I wanted to allow a sure to split "functions" inside of the url by using "//"
string[] functions = url.Split('!');
foreach (string function in functions)
{
if (function.IndexOf("goto/") == 0)
{
string functionString = function.Replace("goto/", "").Trim();
string[] functionParameters = functionString.Split('&');
foreach (string curParam in functionParameters)
{
string[] nv = curParam.Split(new char[] { '=' }, 2);
if (nv.Length != 2)
{
continue;
}
string key = nv[0].ToLower();
string value = nv[1];
double doubleVal = double.NaN;
string urlDecodedValue = HttpUtility.UrlDecode(value);
double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out doubleVal);
switch (key.ToLower())
{
case "lat":
case "latitude":
uri.Latitude = Angle.FromDegrees(doubleVal);
break;
case "lon":
case "longitude":
uri.Longitude = Angle.FromDegrees(doubleVal);
break;
case "altitude":
case "alt":
uri.Altitude = doubleVal;
break;
case "view":
case "viewrange":
uri.ViewRange = Angle.FromDegrees(doubleVal);
break;
// TODO: Decide on URI parameter names
case "bank":
uri.Bank = Angle.FromDegrees(doubleVal);
break;
case "dir":
case "direction":
uri.Direction = Angle.FromDegrees(doubleVal);
break;
case "tilt":
uri.Tilt = Angle.FromDegrees(doubleVal);
break;
case "world":
uri.World = value;
break;
case "layer":
uri.Layer = urlDecodedValue;
break;
}
}
}
}
return(uri);
}
catch (Exception caught)
{
throw new UriFormatException("The worldwind:// URI could not be parsed. (The URI used was: " + worldWindUri + " and the error generated was: " + caught.Message + ")");
}
}
