private static BtExtent ToBrutileExtent(DsExtent extent)
{
return(new BtExtent(extent.MinX, extent.MinY, extent.MaxX, extent.MaxY));
}
/// <summary>
/// Creates an instanc of this class using the given <paramref name="configuration"/>
/// </summary>
/// <param name="configuration">The configuration</param>
public BruTileLayer(IConfiguration configuration)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
var data = base.ContextMenuItems.Find(m => m.Name == "Data");
if (data != null)
{
base.ContextMenuItems.Remove(data);
}
/*
* data = base.ContextMenuItems.Find(m => m.Name.StartsWith("Attrib"));
* if (data != null) base.ContextMenuItems.Remove(data);
*/
// Initialize the configuration prior to usage
configuration.Initialize();
//
_configuration = configuration;
var tileSource = configuration.TileSource;
// for wmts this might be some crude value (urn)
var authorityCode = ToAuthotityCode(tileSource.Schema.Srs);
if (!string.IsNullOrWhiteSpace(authorityCode))
{
_sourceProjection = AuthorityCodeHandler.Instance[authorityCode];
}
else
{
ProjectionInfo p;
if (!TryParseProjectionEsri(tileSource.Schema.Srs, out p))
{
if (!TryParseProjectionProj4(tileSource.Schema.Srs, out p))
{
p = AuthorityCodeHandler.Instance["EPSG:3857"];
}
}
_sourceProjection = p;
}
if (_sourceProjection == null)
{
_sourceProjection = AuthorityCodeHandler.Instance["EPSG:3857"];
}
// WebMercator: set datum to WGS1984 for better accuracy
if (tileSource.Schema.Srs == "EPSG:3857")
{
_sourceProjection.GeographicInfo.Datum = KnownCoordinateSystems.Geographic.World.WGS1984.GeographicInfo.Datum;
}
Projection = _sourceProjection;
var extent = tileSource.Schema.Extent;
MyExtent = new DsExtent(extent.MinX, extent.MinY, extent.MaxX, extent.MaxY);
base.LegendText = configuration.LegendText;
base.LegendItemVisible = true;
base.IsVisible = base.Checked = true;
base.LegendSymbolMode = SymbolMode.Symbol;
LegendType = LegendType.Custom;
_tileFetcher = configuration.TileFetcher;
_tileFetcher.TileReceived += HandleTileReceived;
_tileFetcher.QueueEmpty += HandleQueueEmpty;
//Set the wrap mode
_imageAttributes = new ImageAttributes();
_imageAttributes.SetWrapMode(WrapMode.TileFlipXY);
}
