public void AddPlacename(string name, float lat, float lon, Hashtable metaData)
{
WorldWindPlacenameFile p = null;
foreach (WorldWindPlacenameFile tempFile in this.m_placenameFiles)
{
if (lat < tempFile.north && lat >= tempFile.south && lon >= tempFile.west && lon < tempFile.east)
{
p = tempFile;
break;
}
}
if (p == null)
{
return;
}
if (p.m_placeNames.Count == 50000)
{
//split
WorldWindPlacenameFile[] splitFiles = p.SplitPlacenameFiles();
this.m_placenameFiles.Remove(p);
foreach (WorldWindPlacenameFile newFile in splitFiles)
{
this.m_placenameFiles.Add(newFile);
}
this.AddPlacename(name, lat, lon, metaData);
}
else
{
p.AddPlacename(name, lat, lon, metaData);
}
}
public WorldWindPlacenameFile[] SplitPlacenameFiles()
{
//split
WorldWindPlacenameFile northWest = new WorldWindPlacenameFile();
northWest.north = this.north;
northWest.south = 0.5f * (this.north + this.south);
northWest.west = this.west;
northWest.east = 0.5f * (this.west + this.east);
northWest.dataFilename = GetRowFromLatitude(northWest.south, northWest.north - northWest.south).ToString().PadLeft(4, '0') + "_" + GetColFromLongitude(northWest.west, northWest.east - northWest.west).ToString().PadLeft(4, '0') + ".wwp";
WorldWindPlacenameFile northEast = new WorldWindPlacenameFile();
northEast.north = this.north;
northEast.south = 0.5f * (this.north + this.south);
northEast.west = 0.5f * (this.west + this.east);
northEast.east = this.east;
northEast.dataFilename = GetRowFromLatitude(northEast.south, northEast.north - northEast.south).ToString().PadLeft(4, '0') + "_" + GetColFromLongitude(northEast.west, northEast.east - northEast.west).ToString().PadLeft(4, '0') + ".wwp";
WorldWindPlacenameFile southWest = new WorldWindPlacenameFile();
southWest.north = 0.5f * (this.north + this.south);
southWest.south = this.south;
southWest.west = this.west;
southWest.east = 0.5f * (this.west + this.east);
southWest.dataFilename = GetRowFromLatitude(southWest.south, southWest.north - southWest.south).ToString().PadLeft(4, '0') + "_" + GetColFromLongitude(southWest.west, southWest.east - southWest.west).ToString().PadLeft(4, '0') + ".wwp";
WorldWindPlacenameFile southEast = new WorldWindPlacenameFile();
southEast.north = 0.5f * (this.north + this.south);
southEast.south = this.south;
southEast.west = 0.5f * (this.west + this.east);
southEast.east = this.east;
southEast.dataFilename = GetRowFromLatitude(southEast.south, southEast.north - southEast.south).ToString().PadLeft(4, '0') + "_" + GetColFromLongitude(southEast.west, southEast.east - southEast.west).ToString().PadLeft(4, '0') + ".wwp";
foreach (WorldWindPlacename p in this.m_placeNames)
{
if (p.Lat >= 0.5f * (this.north + this.south))
{
if (p.Lon >= 0.5 * (this.west + this.east))
{
northEast.AddPlacename(p.Name, p.Lat, p.Lon, p.metaData);
}
else
{
northWest.AddPlacename(p.Name, p.Lat, p.Lon, p.metaData);
}
}
else
{
if (p.Lon >= 0.5 * (this.west + this.east))
{
southEast.AddPlacename(p.Name, p.Lat, p.Lon, p.metaData);
}
else
{
southWest.AddPlacename(p.Name, p.Lat, p.Lon, p.metaData);
}
}
}
WorldWindPlacenameFile[] returnArray = new WorldWindPlacenameFile[] { northWest, northEast, southWest, southEast };
return(returnArray);
}
