ClemensFischer/XAML-Map-Control
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Update WmsImageLayer.cs

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This commit is contained in:
ClemensF 2020-09-09 22:45:36 +02:00
parent e8d07ffc29
commit 85646597d1
1 changed files with 54 additions and 42 deletions
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96
MapControl/Shared/WmsImageLayer.cs
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@ -5,7 +5,6 @@
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.Diagnostics; using System.Diagnostics;
using System.IO;
using System.Linq; using System.Linq;
using System.Threading.Tasks; using System.Threading.Tasks;
using System.Xml.Linq; using System.Xml.Linq;
@ -105,16 +104,49 @@ namespace MapControl
{ {
var uri = GetCapabilitiesRequestUri(); var uri = GetCapabilitiesRequestUri();
try if (!string.IsNullOrEmpty(uri))
{ {
using (var stream = await ImageLoader.HttpClient.GetStreamAsync(uri)) try
{ {
element = XDocument.Load(stream).Root; using (var stream = await ImageLoader.HttpClient.GetStreamAsync(uri))
{
element = XDocument.Load(stream).Root;
}
}
catch (Exception ex)
{
Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message);
} }
} }
catch (Exception ex) }
return element;
}
/// <summary>
/// Loads an XElement from the URL returned by GetFeatureInfoRequestUri().
/// </summary>
public async Task<XElement> GetFeatureInfoAsync(Point position)
{
XElement element = null;
if (ServiceUri != null)
{
var uri = GetFeatureInfoRequestUri(position, "text/xml");
if (!string.IsNullOrEmpty(uri))
{ {
Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message); try
{
using (var stream = await ImageLoader.HttpClient.GetStreamAsync(uri))
{
element = XDocument.Load(stream).Root;
}
}
catch (Exception ex)
{
Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message);
}
} }
} }
@ -132,46 +164,22 @@ namespace MapControl
{ {
var uri = GetFeatureInfoRequestUri(position, format); var uri = GetFeatureInfoRequestUri(position, format);
try if (!string.IsNullOrEmpty(uri))
{ {
response = await ImageLoader.HttpClient.GetStringAsync(uri); try
} {
catch (Exception ex) response = await ImageLoader.HttpClient.GetStringAsync(uri);
{ }
Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message); catch (Exception ex)
{
Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message);
}
} }
} }
return response; return response;
} }
/// <summary>
/// Loads an XElement from the URL returned by GetFeatureInfoRequestUri().
/// </summary>
public async Task<XElement> GetFeatureInfoAsync(Point position)
{
XElement element = null;
if (ServiceUri != null)
{
var uri = GetFeatureInfoRequestUri(position, "text/xml");
try
{
using (var stream = await ImageLoader.HttpClient.GetStreamAsync(uri))
{
element = XDocument.Load(stream).Root;
}
}
catch (Exception ex)
{
Debug.WriteLine("WmsImageLayer: {0}: {1}", uri, ex.Message);
}
}
return element;
}
/// <summary> /// <summary>
/// Loads an ImageSource from the URL returned by GetMapRequestUri(). /// Loads an ImageSource from the URL returned by GetMapRequestUri().
/// </summary> /// </summary>
@ -240,9 +248,11 @@ namespace MapControl
uri += "&BBOX=" + projection.GetBboxValue(mapRect); uri += "&BBOX=" + projection.GetBboxValue(mapRect);
uri += "&WIDTH=" + (int)Math.Round(viewScale * mapRect.Width); uri += "&WIDTH=" + (int)Math.Round(viewScale * mapRect.Width);
uri += "&HEIGHT=" + (int)Math.Round(viewScale * mapRect.Height); uri += "&HEIGHT=" + (int)Math.Round(viewScale * mapRect.Height);
uri = uri.Replace(" ", "%20");
} }
return uri.Replace(" ", "%20"); return uri;
} }
/// <summary> /// <summary>
@ -289,12 +299,14 @@ namespace MapControl
uri += "&I=" + (int)Math.Round(imagePos.X); uri += "&I=" + (int)Math.Round(imagePos.X);
uri += "&J=" + (int)Math.Round(imagePos.Y); uri += "&J=" + (int)Math.Round(imagePos.Y);
uri += "&INFO_FORMAT=" + format; uri += "&INFO_FORMAT=" + format;
uri = uri.Replace(" ", "%20");
} }
return uri.Replace(" ", "%20"); return uri;
} }
private string GetRequestUri(string request) protected string GetRequestUri(string request)
{ {
var uri = ServiceUri.ToString(); var uri = ServiceUri.ToString();