WorldWindWFSPlacenameFile[] GetWFSFiles(double north, double south, double west, double east)
{
double tileSize = 0;
//base the tile size on the max viewing distance
double maxDistance = Math.Sqrt(this.m_maximumDistanceSq);
double factor = maxDistance / this.m_parentWorld.EquatorialRadius;
// True view range
if (factor < 1)
{
tileSize = Angle.FromRadians(Math.Abs(Math.Asin(maxDistance / this.m_parentWorld.EquatorialRadius)) * 2).Degrees;
}
else
{
tileSize = Angle.FromRadians(Math.PI).Degrees;
}
tileSize = (180 / (int)(180 / tileSize));
if (tileSize == 0)
{
tileSize = 0.1;
}
//Log.Write(Log.Levels.Debug, string.Format("TS: {0} -> {1}", name, tileSize));
//not working for some reason...
//int startRow = MathEngine.GetRowFromLatitude(south, tileSize);
//int endRow = MathEngine.GetRowFromLatitude(north, tileSize);
//int startCol = MathEngine.GetColFromLongitude(west, tileSize);
//int endCol = MathEngine.GetColFromLongitude(east, tileSize);
ArrayList placenameFiles = new ArrayList();
double currentSouth = -90;
//for (int row = 0; row <= endRow; row++)
while (currentSouth < 90)
{
double currentNorth = currentSouth + tileSize;
if (currentSouth > north || currentNorth < south)
{
currentSouth += tileSize;
continue;
}
double currentWest = -180;
while (currentWest < 180)
// for (int col = startCol; col <= endCol; col++)
{
double currentEast = currentWest + tileSize;
if (currentWest > east || currentEast < west)
{
currentWest += tileSize;
continue;
}
WorldWindWFSPlacenameFile placenameFile = new WorldWindWFSPlacenameFile(this.m_name, this.m_placenameBaseUrl, this.m_typename, this.m_labelfield, currentNorth, currentSouth, currentWest, currentEast, this.m_parentWorld, this.m_cache);
int key = placenameFile.GetHashCode();
if (!this.m_fileHash.Contains(key))
{
this.m_fileHash.Add(key, placenameFile);
}
else
{
placenameFile = (WorldWindWFSPlacenameFile)this.m_fileHash[key];
}
placenameFiles.Add(placenameFile);
currentWest += tileSize;
}
currentSouth += tileSize;
}
return((WorldWindWFSPlacenameFile[])placenameFiles.ToArray(typeof(WorldWindWFSPlacenameFile)));
}
