static void Main(string[] args)
{
bool showHelp = false;
bool gzip = false;
bool overwrite = false;
bool verbose = false;
string destination = ".";
int[] levels = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 };
HashSet <string> fields = null;
int threadCount = System.Environment.ProcessorCount;
OptionSet p = new OptionSet()
{
{ "d|dir=", "destination directory (defaults to current directory)", d => destination = d },
{ "l|levels=",
"list of scale levels [0-19], separated by commas",
l => levels = l.Split(new char[] { ',' }).Select(s => Convert.ToInt32(s)).ToArray() },
{ "f|fields=",
"list of field names to include in UTFGrid data",
f => fields = new HashSet <string>(f.Split(new char[] { ',' })) },
{ "t|threads=",
"number of threads to use (defaults to number of processors)",
t => threadCount = Convert.ToInt32(t) },
{ "z|zip", "zip the json files using gzip compression before saving", z => gzip = z != null },
{ "o|overwrite", "overwrite existing files", o => overwrite = o != null },
{ "v|verbose", "verbose output", v => verbose = v != null },
{ "h|help", "show this message and exit", h => showHelp = h != null }
};
List <string> extra;
try {
extra = p.Parse(args);
} catch (OptionException e) {
Console.Write("utfgrid");
Console.WriteLine(e.Message);
Console.WriteLine("Try `utfgrid --help' for more information.");
return;
}
if (showHelp)
{
Console.WriteLine("Usage: utfgrid [OPTIONS]+ mxd_document");
Console.WriteLine("Generate UTFGrid files from the given map document");
Console.WriteLine();
Console.WriteLine("Options:");
p.WriteOptionDescriptions(Console.Out);
return;
}
else if (extra.Count < 1)
{
Console.WriteLine("utfgrid: no map document specified");
Console.WriteLine("Try `utfgrid --help' for more information.");
return;
}
RuntimeManager.BindLicense(ProductCode.EngineOrDesktop);
IMap map = null;
try {
IMapDocument mapDocument = new MapDocumentClass();
mapDocument.Open(extra[0], null);
map = mapDocument.ActiveView as IMap;
if (map == null)
{
map = mapDocument.get_Map(0);
}
mapDocument.Close();
} catch (Exception) { }
if (map == null)
{
Console.WriteLine("Unable to open map at " + extra[0]);
return;
}
if ((map.SpatialReference.FactoryCode != 102113) &&
(map.SpatialReference.FactoryCode != 102100) &&
(map.SpatialReference.FactoryCode != 3785))
{
Console.WriteLine("Spatial reference of map must be Web Mercator (is " + map.SpatialReference.FactoryCode + ")");
return;
}
IActiveView activeView = map as IActiveView;
// get the extent from the active view
IEnvelope fullExtent = activeView.FullExtent;
Console.WriteLine("starting utfgrid generator with " + threadCount + " threads");
UTFGridGeneratorConfig config = new UTFGridGeneratorConfig(extra[0], DescribeTiles(levels, activeView.FullExtent));
config.GZip = gzip;
config.Overwrite = overwrite;
config.Verbose = verbose;
config.Destination = destination;
Thread[] workerThreads = new Thread[threadCount];
for (int i = 0; i < threadCount; i++)
{
workerThreads[i] = new Thread(new ParameterizedThreadStart(UTFGridGenerator.Execute));
workerThreads[i].SetApartmentState(ApartmentState.STA);
workerThreads[i].IsBackground = true;
workerThreads[i].Priority = ThreadPriority.BelowNormal;
workerThreads[i].Name = "UTFGridGenerator " + (i + 1).ToString();
workerThreads[i].Start(config);
}
foreach (Thread t in workerThreads)
{
t.Join();
}
workerThreads = null;
}
public static void Execute(object threadData)
{
UTFGridGeneratorConfig config = threadData as UTFGridGeneratorConfig;
try {
config.WorkerStart();
IMap map = null;
try {
IMapDocument mapDocument = new MapDocumentClass();
mapDocument.Open(config.MapPath, null);
map = mapDocument.ActiveView as IMap;
if (map == null)
{
map = mapDocument.get_Map(0);
}
mapDocument.Close();
} catch (Exception) { }
if (map == null)
{
throw new Exception("Unable to open map at " + config.MapPath);
}
if ((map.SpatialReference.FactoryCode != 102113) &&
(map.SpatialReference.FactoryCode != 102100) &&
(map.SpatialReference.FactoryCode != 3785))
{
throw new Exception("Spatial reference of map must be Web Mercator (is " + map.SpatialReference.FactoryCode + ")");
}
while (true)
{
TileDescription tile = config.NextTile();
if (tile == null)
{
return;
}
string folder = String.Format("{0}\\{1}\\{2}", config.Destination, tile.Level, tile.Col);
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
string file = String.Format("{0}\\{1}.grid.json", folder, tile.Row);
if (config.GZip)
{
file += ".gz";
}
if ((!File.Exists(file)) || config.Overwrite)
{
if (config.Verbose)
{
Console.WriteLine(Thread.CurrentThread.Name + " generating tile " + tile.Level + ", " + tile.Row + ", " + tile.Col);
}
Dictionary <string, object> data = CollectData(map, tile.Extent, config.Fields);
if (data != null)
{
if (config.Verbose)
{
Console.WriteLine(Thread.CurrentThread.Name + " saving to " + file);
}
Stream fOut = new System.IO.FileStream(file, FileMode.Create);
if (config.GZip)
{
fOut = new GZipStream(fOut, CompressionMode.Compress, CompressionLevel.BestCompression);
}
using (fOut) {
string json = JsonConvert.SerializeObject(data, Formatting.Indented);
Encoding utf8 = new UTF8Encoding(false, true);
byte[] encodedJson = utf8.GetBytes(json);
fOut.Write(encodedJson, 0, encodedJson.Length);
}
}
}
}
} finally {
config.WorkerEnd();
}
}