/// <summary>
/// Create ArcGisDynamicProvider, capabilities will be parsed automatically
/// </summary>
/// <param name="url">url to map service example: http://url/arcgis/rest/services/test/MapServer</param>
public ArcGisDynamicProvider(string url)
{
Url = url;
Capabilities = new Capabilities
{
fullExtent = new Extent { xmin = 0, xmax = 0, ymin = 0, ymax = 0 },
initialExtent = new Extent { xmin = 0, xmax = 0, ymin = 0, ymax = 0 }
};
var capabilitiesHelper = new CapabilitiesHelper();
capabilitiesHelper.CapabilitiesReceived += CapabilitiesHelperCapabilitiesReceived;
capabilitiesHelper.CapabilitiesFailed += CapabilitiesHelperCapabilitiesFailed;
capabilitiesHelper.GetCapabilities(url);
timeOut = 10000;
}
/// <summary>
/// Create ArcGisDynamicProvider based on a given capabilities file
/// </summary>
/// <param name="url">url to map service example: http://url/arcgis/rest/services/test/MapServer</param>
/// <param name="capabilities"></param>
public ArcGisDynamicProvider(string url, Capabilities capabilities)
{
Url = url;
Capabilities = capabilities;
timeOut = 10000;
}
private static string GetFormat(Capabilities capabilities)
{
//png | png8 | png24 | jpg | pdf | bmp | gif | svg | png32 (png32 only supported from 9.3.1 and up)
if (capabilities.supportedImageFormatTypes == null)//Not all services return supported types, use png
return "png";
var supportedTypes = capabilities.supportedImageFormatTypes.ToLower();
if (supportedTypes.Contains("png32"))
return "png32";
if (supportedTypes.Contains("png24"))
return "png24";
if (supportedTypes.Contains("png8"))
return "png8";
if (supportedTypes.Contains("png"))
return "png";
return "jpg";
}
/// <summary>
/// Generate BruTile TileSchema based on ArcGIS Capabilities
/// </summary>
/// <returns>TileSchema, returns null if service is not tiled</returns>
public static ITileSchema GetTileSchema(Capabilities capabilities)
{
//TODO: Does this belong in Mapsui.Providers?
if (capabilities.tileInfo == null)
return null;
var schema = new TileSchema();
var count = 0;
foreach (var lod in capabilities.tileInfo.lods)
{
schema.Resolutions.Add(new Resolution { Id = count.ToString(), UnitsPerPixel = lod.resolution });
count++;
}
schema.Height = capabilities.tileInfo.cols;
schema.Width = capabilities.tileInfo.rows;
schema.Extent = new BruTile.Extent(capabilities.fullExtent.xmin, capabilities.fullExtent.ymin, capabilities.fullExtent.xmax, capabilities.fullExtent.ymax);
schema.OriginX = capabilities.tileInfo.origin.x;
schema.OriginY = capabilities.tileInfo.origin.y;
schema.Name = "ESRI";
schema.Format = capabilities.tileInfo.format;
schema.Axis = AxisDirection.InvertedY;
schema.Srs = string.Format("EPSG:{0}", capabilities.tileInfo.spatialReference.wkid);
return schema;
}
