public LayerWms(string serviceName, string url)
{
WmsProjectInfo info = new WmsProjectInfo();
info.LatLonBoundingBox = new Extent(-180, -90, 180, 90);
info.Name = serviceName;
info.GetMapInfo.Formats.Add("image/png");
Initialize(info);
wmsService = new WmsService(url);
InitializeEvents();
setupDone = true;
}
private void Initialize(WmsProjectInfo wmsInfo)
{
_wmsInfo = wmsInfo;
_boundingBox = wmsInfo.LatLonBoundingBox;
name = _wmsInfo.Name;
Abstract = _wmsInfo.Abstract;
Title = _wmsInfo.Title;
if (!string.IsNullOrEmpty(_wmsInfo.MercatorEpsg))
_mercatorEpsg = Convert.ToInt32(_wmsInfo.MercatorEpsg);
if (!_wmsInfo.GetMapInfo.Formats.Contains("image/png") &&
!_wmsInfo.GetMapInfo.Formats.Contains("image/png8"))
throw new FormatException("Only PNG support is available at this time");
if (!_wmsInfo.GetMapInfo.Formats.Contains("image/png"))
_imageFormat = "image/png8";
Layers = _wmsInfo.Layers;
}
/// <summary>
/// Creates a new instance of the <see cref="WmsProjectEventArgs"/>
/// </summary>
/// <param name="value">Value.</param>
public WmsProjectEventArgs(WmsProjectInfo value)
: base()
{
_value = value;
}
public LayerWms(WmsProjectInfo wmsInfo)
{
wmsService = new WmsService(wmsInfo.GetCapabilities.Url);
InitializeEvents();
Initialize(wmsInfo);
}
public static WmsProjectInfo Read(string capabilities)
{
var result = new WmsProjectInfo();
XDocument doc;
var settings = new XmlReaderSettings();
settings.DtdProcessing = DtdProcessing.Ignore;
using (XmlReader reader = XmlReader.Create(new StringReader(capabilities), settings))
{
doc = XDocument.Load(reader);
}
var docRoot = doc.Element("WMT_MS_Capabilities");
result.Name = docRoot.Element("Service").Element("Name").Value;
result.Title = docRoot.Element("Service").Element("Title").Value;
result.Abstract = docRoot.Element("Service").Element("Abstract").Value;
var supportedProjections = docRoot.Element("Capability").Element("Layer").Descendants("SRS");
foreach (XElement xsupportedProjection in supportedProjections)
{
result.Projections.Add(xsupportedProjection.Value);
}
//LatLonBoundingBox is specific for WMS 1.1.1 servers
if (docRoot.Element("Capability").Element("Layer").Element("LatLonBoundingBox") != null)
result.LatLonBoundingBox = ParseElementAsExtent(docRoot.Element("Capability").Element("Layer").Element("LatLonBoundingBox"));
//Layers
var layers = docRoot.Element("Capability").Element("Layer").Descendants("Layer");
foreach (XElement xlayer in layers)
{
result.Layers.Add(ReadLayer(xlayer));
}
//GetFeatureInfo
var oocap = docRoot.Element("Capability")
.Element("Request")
.Element("GetCapabilities")
.Element("DCPType")
.Element("HTTP")
.Element("Get")
.Element("OnlineResource");
result.GetCapabilities.Url = oocap.Attribute(xlink + "href").Value;
var formats = docRoot.Element("Capability").Element("Request").Element("GetCapabilities").Descendants("Format");
foreach (XElement format in formats)
{
result.GetCapabilities.Formats.Add(format.Value);
}
//GetMap
var oor = docRoot.Element("Capability")
.Element("Request")
.Element("GetMap")
.Element("DCPType")
.Element("HTTP")
.Element("Get")
.Element("OnlineResource");
result.GetMapInfo.Url = oor.Attribute(xlink + "href").Value;
formats = docRoot.Element("Capability").Element("Request").Element("GetMap").Descendants("Format");
foreach (XElement format in formats)
{
result.GetMapInfo.Formats.Add(format.Value);
}
//GetFeatureInfo
oor = docRoot.Element("Capability")
.Element("Request")
.Element("GetFeatureInfo")
.Element("DCPType")
.Element("HTTP")
.Element("Get")
.Element("OnlineResource");
result.GetFeatureInfo.Url = oor.Attribute(xlink + "href").Value;
formats = docRoot.Element("Capability").Element("Request").Element("GetFeatureInfo").Descendants("Format");
foreach (XElement format in formats)
{
result.GetFeatureInfo.Formats.Add(format.Value);
}
//GetLegendGraphic
if (docRoot.Element("Capability").Element("Request").Element("GetLegendGraphic") != null)
{
result.GetLegendGraphic = new WmsGetLegendGraphic();
oor = docRoot.Element("Capability")
.Element("Request")
.Element("GetLegendGraphic")
.Element("DCPType")
.Element("HTTP")
.Element("Get")
.Element("OnlineResource");
result.GetLegendGraphic.Url = oor.Attribute(xlink + "href").Value;
formats =
docRoot.Element("Capability").Element("Request").Element("GetLegendGraphic").Descendants("Format");
foreach (XElement format in formats)
{
result.GetLegendGraphic.Formats.Add(format.Value);
}
}
formats =
docRoot.Element("Capability").Element("Exception").Descendants("Format");
foreach (XElement format in formats)
{
result.ExceptionFormats.Add(format.Value);
}
result.CalculateExtent();
return result;
}
