/// <summary>
/// Load grids from the specified folder
/// </summary>
public void InitializeExternalGrids(string strGridsFolder, bool recursive)
{
SearchOption opt = recursive ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
string[] gridTypes = { "*.los", "*.gsb", "*.dat", "*.lla" };
List <string> names = new List <string>();
foreach (string gridType in gridTypes)
{
string[] tmp = Directory.GetFiles(strGridsFolder, gridType, opt);
names.AddRange(tmp);
}
foreach (var s in names)
{
string coreName = "@" + Path.GetFileNameWithoutExtension(s);
if (_tables.ContainsKey(coreName))
{
continue;
}
string ext = Path.GetExtension(s).ToLower();
if (ext != ".los" && ext != ".gsb" && ext != ".dat")
{
continue;
}
if (ext == ".los" && !File.Exists(s.Replace(".los", ".las")))
{
continue;
}
var s1 = s;
_tables.Add(coreName, new Lazy <NadTable>(() => NadTable.FromSourceName(s1, false), true));
}
}
/// <summary>
/// This method parses the extension of a resource location or
/// path and creates the new NadTable type.
/// </summary>
public static NadTable FromSourceName(string location, bool embedded = true, bool requiresDecompression = false)
{
NadTable result = null;
string ext = Path.GetExtension(location).ToLower();
switch (ext)
{
case ".lla":
result = new LlaNadTable(location, embedded, requiresDecompression);
break;
case ".gsb":
result = new GsbNadTable(location, 0, embedded, requiresDecompression);
break;
case ".dat":
result = new DatNadTable(location, embedded, requiresDecompression);
break;
case ".los":
result = new LasLosNadTable(location, embedded, requiresDecompression);
break;
}
if (result != null)
{
result.ReadHeader();
}
return(result);
}
/// <summary>
/// Load grids from the specified folder
/// </summary>
public void InitializeExternalGrids(string strGridsFolder, bool recursive)
{
SearchOption opt = recursive ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
foreach (var gridType in new[] { "*.los", "*.gsb", "*.dat", "*.lla" })
{
foreach (var s in Directory.EnumerateFiles(strGridsFolder, gridType, opt))
{
string coreName = "@" + Path.GetFileNameWithoutExtension(s);
string ext = Path.GetExtension(s).ToLower();
if (ext == ".los" && !File.Exists(s.Replace(".los", ".las")))
{
continue;
}
var s1 = s;
_tables.Add(coreName, new Lazy <NadTable>(() => NadTable.FromSourceName(s1, false), true));
}
}
}
/// <summary>
/// Creates a new instance of NadTables
/// </summary>
public NadTables()
{
var a = Assembly.GetExecutingAssembly();
foreach (var s in a.GetManifestResourceNames())
{
string[] ss = s.Split('.');
if (ss.Length < 5)
{
continue;
}
string coreName = "@" + ss[4];
if (_tables.ContainsKey(coreName))
{
continue;
}
string ext = Path.GetExtension(s).ToLower();
if (ext != ".lla" && ext != ".dat" && ext != ".gsb")
{
continue;
}
//if (ss[ss.Length - 2] != "ds") continue; // only encoded by DeflateStreamUtility
using (var str = a.GetManifestResourceStream(s))
{
if (str == null)
{
continue;
}
}
var s1 = s;
if (ss[ss.Length - 2] == "ds")
{
_tables.Add(coreName, new Lazy <NadTable>(() => NadTable.FromSourceName(s1, true, true), true));
}
else
{
_tables.Add(coreName, new Lazy <NadTable>(() => NadTable.FromSourceName(s1, true), true));
}
}
}