public static WmsTileSource Create(WmsInfo info)
{
var schema = new TileSchema
{
Format = "image/png",
Srs = info.CRS,
Height = 256,
Width = 256,
};
var onlineResource = info.WmsCapabilities.Capability.Request.GetCapabilities.DCPType[0].Http.Get.OnlineResource.Href;
return(new WmsTileSource(new WebTileProvider(new WmsRequest(new Uri(onlineResource),
schema,
new List <string> {
info.Layer.Name
},
info.Style == null? null : new List <string> {
info.Style
},
info.CustomParameters, info.WmsCapabilities.Version.VersionString),
fetchTile: d => RequestHelper.FetchImage(d, info.Credentials)
),
schema));
}
public WMSServerParameters(WmsInfo data)
{
InitializeComponent();
WmsInfo = data;
if (WmsInfo == null)
{
return;
}
_wmsCapabilities = WmsInfo.WmsCapabilities;
tbServerUrl.Text = WmsInfo.ServerUrl;
if (WmsInfo.Credentials != null)
{
tbLogin.Text = WmsInfo.Credentials.UserName;
tbPassword.Text = WmsInfo.Credentials.Password;
}
ShowServerDetails(_wmsCapabilities);
InitLayers(_wmsCapabilities);
// Select layer
tvLayers.SelectedNode = FindNodeByLayer(tvLayers.Nodes, WmsInfo.Layer);
if (tvLayers.SelectedNode != null)
{
tvLayers.SelectedNode.EnsureVisible();
}
tvLayers.Select();
tvLayers.Focus();
// Select CRS
lbCRS.SelectedItem = WmsInfo.CRS;
// Select Style
for (int i = 0; i < lbStyles.Items.Count; i++)
{
var style = (StyleWrapper)lbStyles.Items[i];
if (style.Style.Name == WmsInfo.Style)
{
lbStyles.SelectedIndex = i;
break;
}
}
// Show custom parameters
if (WmsInfo.CustomParameters != null)
{
tbCustomParameters.Text = string.Join(Environment.NewLine,
WmsInfo.CustomParameters.Select(d => string.Format("{0}={1}", d.Key, d.Value)));
}
}
private void btnGetCapabilities_Click(object sender, EventArgs e)
{
var serverUrl = tbServerUrl.Text;
if (String.IsNullOrWhiteSpace(serverUrl))
{
return;
}
if (serverUrl.IndexOf("Request=GetCapabilities", StringComparison.OrdinalIgnoreCase) < 0)
{
serverUrl = serverUrl + "&Request=GetCapabilities";
}
if (serverUrl.IndexOf("SERVICE=WMS", StringComparison.OrdinalIgnoreCase) < 0)
{
serverUrl = serverUrl + "&SERVICE=WMS";
}
WmsCapabilities capabilities;
try
{
var myRequest = WebRequest.Create(serverUrl);
myRequest.Credentials = GetUserCredentials();
using (var myResponse = myRequest.GetResponse())
using (var stream = myResponse.GetResponseStream())
capabilities = new WmsCapabilities(stream);
}
catch (Exception ex)
{
MessageBox.Show("Unable to read capabilities: " + ex.Message);
return;
}
WmsInfo = null;
_wmsCapabilities = capabilities;
ShowServerDetails(capabilities);
InitLayers(capabilities);
}
public WmsServiceProvider(string name) :
base(name, null, new MemoryCache <byte[]>())
{
Configure = delegate
{
using (var wmsDialog = new WMSServerParameters(_data))
{
if (wmsDialog.ShowDialog() != DialogResult.OK)
{
return(false);
}
_data = wmsDialog.WmsInfo;
if (_data != null)
{
TileSource = WmsTileSource.Create(_data);
TileCache = new MemoryCache <byte[]>();
return(true);
}
return(false);
}
};
}
private void btnOK_Click(object sender, EventArgs e)
{
if (_wmsCapabilities == null)
{
MessageBox.Show("Select server to view.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (tvLayers.SelectedNode == null)
{
MessageBox.Show("Select layer to view.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (lbCRS.SelectedItem == null)
{
MessageBox.Show("Select CRS to view.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
ProjectionInfo projectionInfo;
try
{
var crs = (string)lbCRS.SelectedItem;
if (string.Equals(crs, "CRS:84", StringComparison.OrdinalIgnoreCase))
{
crs = "EPSG:4326";
}
var epsgCode = Convert.ToInt32(crs.Replace("EPSG:", ""));
switch (epsgCode)
{
case 3857:
projectionInfo = KnownCoordinateSystems.Projected.World.WebMercator;
break;
case 4326:
projectionInfo = KnownCoordinateSystems.Geographic.World.WGS1984;
break;
default:
projectionInfo = ProjectionInfo.FromEpsgCode(epsgCode);
break;
}
}
catch (Exception)
{
MessageBox.Show("Unsupported CRS. Select another CRS.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// Parse custom parameters
var cs = string.IsNullOrWhiteSpace(tbCustomParameters.Text)
? new Dictionary <string, string>()
: tbCustomParameters.Text.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)
.Select(d => d.Split('=')).ToDictionary(d => d[0], d => d[1]);
WmsInfo = new WmsInfo(tbServerUrl.Text,
_wmsCapabilities,
(Layer)tvLayers.SelectedNode.Tag, cs, (string)lbCRS.SelectedItem, projectionInfo,
lbStyles.SelectedItem == null? null :
((StyleWrapper)lbStyles.SelectedItem).Style.Name, GetUserCredentials());
DialogResult = DialogResult.OK;
}