mirror of
https://github.com/ClemensFischer/XAML-Map-Control.git
synced 2026-02-07 08:14:19 +01:00
Reworked WmsImageLayer
This commit is contained in:
ClemensF
parent
37b42b3c1b
commit
8048eb123f
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@ -60,7 +60,7 @@ namespace MapControl
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base.SetViewportTransform(projectionCenter, mapCenter, viewportCenter, zoomLevel, heading);
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}
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public override string WmsQueryParameters(BoundingBox boundingBox, string version)
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public override string WmsQueryParameters(BoundingBox boundingBox, bool useSrs)
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{
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if (string.IsNullOrEmpty(CrsId))
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{
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@ -70,11 +70,11 @@ namespace MapControl
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var rect = BoundingBoxToRect(boundingBox);
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var width = (int)Math.Round(ViewportScale * rect.Width);
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var height = (int)Math.Round(ViewportScale * rect.Height);
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var crs = version.StartsWith("1.1.") ? "SRS" : "CRS";
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return string.Format(CultureInfo.InvariantCulture,
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"{0}={1},1,{2},{3}&BBOX={4},{5},{6},{7}&WIDTH={8}&HEIGHT={9}",
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crs, CrsId, ProjectionCenter.Longitude, ProjectionCenter.Latitude,
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(useSrs ? "SRS" : "CRS"), CrsId,
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ProjectionCenter.Longitude, ProjectionCenter.Latitude,
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rect.X, rect.Y, (rect.X + rect.Width), (rect.Y + rect.Height), width, height);
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}
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@ -147,19 +147,18 @@ namespace MapControl
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}
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/// <summary>
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/// Gets a WMS 1.3.0 query parameter string from the specified bounding box,
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/// e.g. "CRS=...&BBOX=...&WIDTH=...&HEIGHT=..."
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/// Gets a WMS query parameter string from the specified bounding box, e.g. "CRS=...&BBOX=...&WIDTH=...&HEIGHT=..."
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/// </summary>
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public virtual string WmsQueryParameters(BoundingBox boundingBox, string version = "1.3.0")
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public virtual string WmsQueryParameters(BoundingBox boundingBox, bool useSrs = false)
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{
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if (string.IsNullOrEmpty(CrsId) || !boundingBox.HasValidBounds)
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{
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return null;
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}
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var format = "CRS={0}&BBOX={1},{2},{3},{4}&WIDTH={5}&HEIGHT={6}";
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string format;
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if (version.StartsWith("1.1."))
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if (useSrs)
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{
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format = "SRS={0}&BBOX={1},{2},{3},{4}&WIDTH={5}&HEIGHT={6}";
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}
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@ -167,6 +166,10 @@ namespace MapControl
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{
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format = "CRS={0}&BBOX={2},{1},{4},{3}&WIDTH={5}&HEIGHT={6}";
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}
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else
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{
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format = "CRS={0}&BBOX={1},{2},{3},{4}&WIDTH={5}&HEIGHT={6}";
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}
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var rect = BoundingBoxToRect(boundingBox);
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var width = (int)Math.Round(ViewportScale * rect.Width);
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@ -21,13 +21,15 @@ namespace MapControl
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{
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public partial class WmsImageLayer : MapImageLayer
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{
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public static readonly DependencyProperty ServerUriProperty = DependencyProperty.Register(
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nameof(ServerUri), typeof(Uri), typeof(WmsImageLayer),
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private const string DefaultVersion = "1.3.0";
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public static readonly DependencyProperty ServiceUriProperty = DependencyProperty.Register(
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nameof(ServiceUri), typeof(Uri), typeof(WmsImageLayer),
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new PropertyMetadata(null, async (o, e) => await ((WmsImageLayer)o).UpdateImageAsync()));
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public static readonly DependencyProperty VersionProperty = DependencyProperty.Register(
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nameof(Version), typeof(string), typeof(WmsImageLayer),
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new PropertyMetadata("1.3.0", async (o, e) => await ((WmsImageLayer)o).UpdateImageAsync()));
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new PropertyMetadata(DefaultVersion, async (o, e) => await ((WmsImageLayer)o).UpdateImageAsync()));
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public static readonly DependencyProperty LayersProperty = DependencyProperty.Register(
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nameof(Layers), typeof(string), typeof(WmsImageLayer),
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@ -41,16 +43,12 @@ namespace MapControl
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nameof(Format), typeof(string), typeof(WmsImageLayer),
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new PropertyMetadata("image/png", async (o, e) => await ((WmsImageLayer)o).UpdateImageAsync()));
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public static readonly DependencyProperty TransparentProperty = DependencyProperty.Register(
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nameof(Transparent), typeof(bool), typeof(WmsImageLayer),
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new PropertyMetadata(false, async (o, e) => await ((WmsImageLayer)o).UpdateImageAsync()));
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private string layers = string.Empty;
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public Uri ServerUri
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public Uri ServiceUri
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{
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get { return (Uri)GetValue(ServerUriProperty); }
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set { SetValue(ServerUriProperty, value); }
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get { return (Uri)GetValue(ServiceUriProperty); }
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set { SetValue(ServiceUriProperty, value); }
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}
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public string Version
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@ -77,32 +75,38 @@ namespace MapControl
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set { SetValue(FormatProperty, value); }
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}
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public bool Transparent
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{
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get { return (bool)GetValue(TransparentProperty); }
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set { SetValue(TransparentProperty, value); }
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}
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protected override async Task<ImageSource> GetImageAsync(BoundingBox boundingBox)
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{
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ImageSource imageSource = null;
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if (ServerUri != null)
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if (ServiceUri != null)
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{
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var projectionParameters = ParentMap.MapProjection.WmsQueryParameters(boundingBox, Version);
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var version = Version;
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var uri = GetRequestUri(ref version) + "REQUEST=GetMap&";
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var projectionParameters = ParentMap.MapProjection.WmsQueryParameters(boundingBox, version.StartsWith("1.1."));
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if (!string.IsNullOrEmpty(projectionParameters))
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{
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var uri = GetRequestUri("GetMap"
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+ "&LAYERS=" + Layers
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+ "&STYLES=" + Styles
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+ "&FORMAT=" + Format
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+ "&TRANSPARENT=" + (Transparent ? "TRUE" : "FALSE")
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+ "&" + projectionParameters);
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if (uri.IndexOf("LAYERS=", StringComparison.OrdinalIgnoreCase) < 0)
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{
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uri += "LAYERS=" + (Layers ?? "") + "&";
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}
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if (uri.IndexOf("STYLES=", StringComparison.OrdinalIgnoreCase) < 0)
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{
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uri += "STYLES=" + (Styles ?? "") + "&";
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}
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if (uri.IndexOf("FORMAT=", StringComparison.OrdinalIgnoreCase) < 0)
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{
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uri += "FORMAT=" + (Format ?? "") + "&";
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}
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uri += projectionParameters;
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try
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{
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imageSource = await ImageLoader.LoadImageAsync(uri, false);
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imageSource = await ImageLoader.LoadImageAsync(new Uri(uri.Replace(" ", "%20")), false);
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}
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catch (Exception ex)
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{
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@ -116,54 +120,76 @@ namespace MapControl
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public async Task<IList<string>> GetLayerNamesAsync()
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{
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if (ServerUri == null)
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IList<string> layerNames = null;
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if (ServiceUri != null)
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{
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return null;
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}
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var version = Version;
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var uri = GetRequestUri(ref version) + "REQUEST=GetCapabilities";
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var layerNames = new List<string>();
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try
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{
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var document = await XmlDocument.LoadFromUriAsync(GetRequestUri("GetCapabilities"));
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var capability = ChildElements(document.DocumentElement, "Capability").FirstOrDefault();
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if (capability != null)
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try
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{
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var rootLayer = ChildElements(capability, "Layer").FirstOrDefault();
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if (rootLayer != null)
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var document = await XmlDocument.LoadFromUriAsync(new Uri(uri.Replace(" ", "%20")));
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layerNames = new List<string>();
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var capability = ChildElements(document.DocumentElement, "Capability").FirstOrDefault();
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if (capability != null)
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{
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foreach (var layer in ChildElements(rootLayer, "Layer"))
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var rootLayer = ChildElements(capability, "Layer").FirstOrDefault();
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if (rootLayer != null)
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{
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var name = ChildElements(layer, "Name").FirstOrDefault();
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if (name != null)
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foreach (var layer in ChildElements(rootLayer, "Layer"))
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{
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layerNames.Add(name.InnerText);
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var name = ChildElements(layer, "Name").FirstOrDefault();
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if (name != null)
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{
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layerNames.Add(name.InnerText);
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}
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}
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}
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}
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}
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}
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catch (Exception ex)
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{
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Debug.WriteLine("WmsImageLayer: {0}: {1}", ServerUri, ex.Message);
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catch (Exception ex)
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{
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Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message);
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}
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}
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return layerNames;
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}
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private Uri GetRequestUri(string query)
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private string GetRequestUri(ref string version)
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{
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var uri = ServerUri.ToString();
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if (version == null)
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{
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version = DefaultVersion;
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}
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var uri = ServiceUri.ToString();
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if (!uri.EndsWith("?") && !uri.EndsWith("&"))
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{
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uri += "?";
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uri += !uri.Contains("?") ? "?" : "&";
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}
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uri += "SERVICE=WMS&VERSION=" + Version + "&REQUEST=" + query;
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if (uri.IndexOf("SERVICE=", StringComparison.OrdinalIgnoreCase) < 0)
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{
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uri += "SERVICE=WMS&";
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}
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return new Uri(uri.Replace(" ", "%20"));
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int versionStart = uri.IndexOf("VERSION=", StringComparison.OrdinalIgnoreCase);
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int versionEnd;
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if (versionStart < 0)
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{
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uri += "VERSION=" + version + "&";
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}
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else if ((versionEnd = uri.IndexOf("&", versionStart + 8)) >= versionStart + 8)
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{
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version = uri.Substring(versionStart, versionEnd - versionStart);
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}
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return uri;
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}
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private static IEnumerable<XmlElement> ChildElements(XmlElement element, string name)
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@ -99,8 +99,7 @@ namespace ViewModel
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new WmsImageLayer
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{
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Description = "© [terrestris GmbH & Co. KG](http://ows.terrestris.de/)\nData © [OpenStreetMap contributors](http://www.openstreetmap.org/copyright)",
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ServerUri = new Uri("http://ows.terrestris.de/osm/service"),
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Layers = "OSM-WMS"
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ServiceUri = new Uri("http://ows.terrestris.de/osm/service?SERVICE=WMS&VERSION=1.3.0&LAYERS=OSM-WMS&STYLES=&FORMAT=image/png")
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}
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},
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{
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@ -108,8 +107,7 @@ namespace ViewModel
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new WmsImageLayer
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{
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Description = "© [terrestris GmbH & Co. KG](http://ows.terrestris.de/)\nData © [OpenStreetMap contributors](http://www.openstreetmap.org/copyright)",
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ServerUri = new Uri("http://ows.terrestris.de/osm/service"),
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Layers = "TOPO-OSM-WMS"
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ServiceUri = new Uri("http://ows.terrestris.de/osm/service?SERVICE=WMS&VERSION=1.3.0&LAYERS=TOPO-OSM-WMS&STYLES=&FORMAT=image/png")
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}
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},
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{
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@ -117,8 +115,7 @@ namespace ViewModel
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new WmsImageLayer
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{
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Description = "© [SevenCs GmbH](http://www.sevencs.com)",
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ServerUri = new Uri("http://chartserver4.sevencs.com:8080"),
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Layers = "ENC",
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ServiceUri = new Uri("http://chartserver4.sevencs.com:8080?SERVICE=WMS&VERSION=1.3.0&LAYERS=ENC&STYLES=&FORMAT=image/png"),
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MaxBoundingBoxWidth = 360
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}
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}
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