public XmlDocument getKML(int connID)
{
String serverPath = "http://" + HttpContext.Current.Request.ServerVariables["SERVER_NAME"] + ":"
+ HttpContext.Current.Request.ServerVariables["SERVER_PORT"];
//create new connection a populate fields to get the connection name for KMLGenerator
Connection conn = new Connection(connID);
conn.populateFields();
string name = conn.getConnInfo().getConnectionName();
//create a new kml genereator with the connection name as the placemark name
KMLGenerator kmlGen = new KMLGenerator(name, serverPath);
string kml = "";
//generate the kml for the given connID
try
{
kml = kmlGen.generateKML(connID);
}
catch (Exception e)
{
//if there was an error generating kml, return a kml file that contains only a screen overlay that states there was an error generating kml
kml = "<ScreenOverlay> <name>KML Error</name> <Icon> <href>"+ serverPath + "/graphics/kml-error.png</href> </Icon> <overlayXY x=\"0.5\" y=\"0.5\" xunits=\"fraction\" yunits=\"fraction\"/> <screenXY x=\"0.5\" y=\"0.5\" xunits=\"fraction\" yunits=\"fraction\"/> <rotationXY x=\"0\" y=\"0\" xunits=\"fraction\" yunits=\"fraction\"/> <size x=\"1\" y=\"0.2\" xunits=\"fraction\" yunits=\"fraction\"/></ScreenOverlay>";
}
//add the kml to an XMLDoc and return
XmlDocument kmlDoc = new XmlDocument();
kmlDoc.LoadXml(kml);
return(kmlDoc);
}
public static void CrimeDataTest()
{
DataBase database = new DataBase();
m_dataBase = database;
var watch0 = System.Diagnostics.Stopwatch.StartNew();
// TODO: takes 8895 ms for database small
//AddDatasetSmall(database);
// TODO: takes 34 seconds for load dataset1
AddDataset1(database);
//AddDataset2(database);
watch0.Stop();
Console.WriteLine("Process data takes " + watch0.ElapsedMilliseconds + " ms");
database.Display();
///
/// Test get coordinates in bounding box
/// TODO: search coordinates in bbox take much more time than searching in bcircle
var watch2 = System.Diagnostics.Stopwatch.StartNew();
var c2 = database.BboxCoordinates(41.85776407, -87.73420671, 41.89993156, -87.60380377, mLevel);
watch2.Stop();
var elapsedMs2 = watch2.ElapsedMilliseconds;
Console.WriteLine("BboxCoordinates, Time elapsed: " + elapsedMs2 + " ms | " + c2.Length + " results get");
KMLGenerator.GenerateKMLcoordinates(c2, "box coordinates");
///
/// Display search process
///
///
/// Test get coordinates in bounding circle
///
var watch = System.Diagnostics.Stopwatch.StartNew();
Coordinates[] c = database.BcircleCoordinates(mLat, mLon, mRadius, mLevel, mLimit);
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
Console.WriteLine("BcircleCoordinates, Time elapsed: " + elapsedMs + " ms | " + c.Length + " results get");
KMLGenerator.GenerateKMLcoordinates(c, "circle coordinates");
///
/// Display search process
///
}
public static void BoundingCircleTest()
{
Coordinates c = new Coordinates {
Lat = mLat, Lon = mLon
};
Console.WriteLine("point latitude " + c.Lat + ", longitude " + c.Lon);
var encoded = GeoHash.Encode(c.Lat, c.Lon, mLevel);
Console.WriteLine("encoded = " + encoded);
var decoded = GeoHash.Decode(encoded);
var latitude = decoded.Coordinates.Lat;
var longitude = decoded.Coordinates.Lon;
Console.WriteLine("decoded box latitude " + latitude + ", longitude " + longitude);
BoundingBox box = GeoHash.DecodeBbox(encoded);
var maxLat = box.Maximum.Lat;
var minLat = box.Minimum.Lat;
var maxLon = box.Maximum.Lon;
var minLon = box.Minimum.Lon;
// Measure the box size in meters
var oneSide = DataBase.Measure(maxLat, minLon, minLat, minLon);
var anotherSide = DataBase.Measure(maxLat, maxLon, maxLat, minLon);
// Bounding circle
var watch = System.Diagnostics.Stopwatch.StartNew();
string[] hashList = DataBase.Bcircle(c.Lat, c.Lon, mRadius, mLevel);
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
//foreach (var h in hashList)
//{
// Console.WriteLine(h);
//}
Console.WriteLine("box size: " + oneSide + " meters * " + anotherSide + " meters");
Console.WriteLine("bounding circle radius " + mRadius + " meters, level " + mLevel);
Console.WriteLine("Get bounding circle, time elapsed: " + elapsedMs + " ms | " + hashList.Length + " results get");
string filename = "bounding circle" + c.Lat.ToString() + "-" + c.Lon.ToString() + "-" + mRadius.ToString() + "-" + mLevel.ToString();
KMLGenerator.GenerateKMLBoundingCircle(hashList, c.Lat, c.Lon, mRadius, filename);
Console.WriteLine("save as file name " + filename);
}
public static void BoundingBoxTest()
{
// Bounding box
Coordinates coor1 = new Coordinates {
Lat = 41.85776407, Lon = -87.73420671
};
Coordinates coor2 = new Coordinates {
Lat = 41.89993156, Lon = -87.60380377
};
var watch = System.Diagnostics.Stopwatch.StartNew();
string[] hashlist = GeoHash.Bboxes(coor1.Lat, coor1.Lon, coor2.Lat, coor2.Lon, mLevel);
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
Console.WriteLine("Get bounding box, time elapsed: " + elapsedMs + " ms | " + hashlist.Length + " results get");
KMLGenerator.GenerateKMLBoundingBoxes(hashlist, coor1, coor2, "bounding box");
}
