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Update GroundOverlay.cs

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ClemensFischer 2024-06-22 08:10:45 +02:00
parent 10c31e2dc9
commit 0a71989791
1 changed files with 55 additions and 69 deletions
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124
MapControl/Shared/GroundOverlay.cs
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@ -11,7 +11,7 @@ using Path = System.IO.Path;
using System.IO.Compression;
using System.Linq;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
#if WPF
using System.Windows;
using System.Windows.Controls;
@ -140,14 +140,12 @@ namespace MapControl
var imageOverlays = await Task.Run(() =>
{
var kmlDocument = new XmlDocument();
using (var docStream = docEntry.Open())
{
kmlDocument.Load(docStream);
}
var kmlDocument = XDocument.Load(docStream);
return ReadGroundOverlays(kmlDocument).ToList();
return ReadGroundOverlays(kmlDocument.Root).ToList();
}
});
foreach (var imageOverlay in imageOverlays)
@ -179,10 +177,9 @@ namespace MapControl
var imageOverlays = await Task.Run(() =>
{
var kmlDocument = new XmlDocument();
kmlDocument.Load(docFilePath);
var kmlDocument = XDocument.Load(docFilePath);
return ReadGroundOverlays(kmlDocument).ToList();
return ReadGroundOverlays(kmlDocument.Root).ToList();
});
foreach (var imageOverlay in imageOverlays)
@ -193,85 +190,74 @@ namespace MapControl
return imageOverlays;
}
private static IEnumerable<ImageOverlay> ReadGroundOverlays(XmlDocument kmlDocument)
private static IEnumerable<ImageOverlay> ReadGroundOverlays(XElement kmlElement)
{
foreach (XmlElement groundOverlayElement in kmlDocument.GetElementsByTagName("GroundOverlay"))
{
LatLonBox latLonBox = null;
string imagePath = null;
int zIndex = 0;
var ns = kmlElement.Name.Namespace;
var docElement = kmlElement.Element(ns + "Document") ?? kmlElement;
foreach (var childElement in groundOverlayElement.ChildNodes.OfType<XmlElement>())
foreach (var folderElement in docElement.Elements(ns + "Folder"))
{
foreach (var groundOverlayElement in folderElement.Elements(ns + "GroundOverlay"))
{
switch (childElement.LocalName)
var latLonBoxElement = groundOverlayElement.Element(ns + "LatLonBox");
var latLonBox = latLonBoxElement != null ? ReadLatLonBox(latLonBoxElement) : null;
var imagePathElement = groundOverlayElement.Element(ns + "Icon");
var imagePath = imagePathElement?.Element(ns + "href")?.Value;
var drawOrder = groundOverlayElement.Element(ns + "drawOrder")?.Value;
var zIndex = drawOrder != null ? int.Parse(drawOrder) : 0;
if (latLonBox != null && imagePath != null)
{
case "LatLonBox":
latLonBox = ReadLatLonBox(childElement);
break;
case "Icon":
imagePath = ReadImagePath(childElement);
break;
case "drawOrder":
zIndex = int.Parse(childElement.InnerText.Trim());
break;
yield return new ImageOverlay(latLonBox, imagePath, zIndex);
}
}
if (latLonBox != null && imagePath != null)
{
yield return new ImageOverlay(latLonBox, imagePath, zIndex);
}
}
}
private static string ReadImagePath(XmlElement element)
{
string href = null;
foreach (var childElement in element.ChildNodes.OfType<XmlElement>())
{
switch (childElement.LocalName)
{
case "href":
href = childElement.InnerText.Trim();
break;
}
}
return href;
}
private static LatLonBox ReadLatLonBox(XmlElement element)
private static LatLonBox ReadLatLonBox(XElement latLonBoxElement)
{
var ns = latLonBoxElement.Name.Namespace;
var north = double.NaN;
var south = double.NaN;
var east = double.NaN;
var west = double.NaN;
var rotation = 0d;
foreach (var childElement in element.ChildNodes.OfType<XmlElement>())
var value = latLonBoxElement.Element(ns + "north")?.Value;
if (value != null)
{
switch (childElement.LocalName)
{
case "north":
north = double.Parse(childElement.InnerText.Trim(), NumberStyles.Float, CultureInfo.InvariantCulture);
break;
case "south":
south = double.Parse(childElement.InnerText.Trim(), NumberStyles.Float, CultureInfo.InvariantCulture);
break;
case "east":
east = double.Parse(childElement.InnerText.Trim(), NumberStyles.Float, CultureInfo.InvariantCulture);
break;
case "west":
west = double.Parse(childElement.InnerText.Trim(), NumberStyles.Float, CultureInfo.InvariantCulture);
break;
case "rotation":
rotation = double.Parse(childElement.InnerText.Trim(), NumberStyles.Float, CultureInfo.InvariantCulture);
break;
}
north = double.Parse(value, NumberStyles.Float, CultureInfo.InvariantCulture);
}
if (north <= south || east <= west)
value = latLonBoxElement.Element(ns + "south")?.Value;
if (value != null)
{
south = double.Parse(value, NumberStyles.Float, CultureInfo.InvariantCulture);
}
value = latLonBoxElement.Element(ns + "east")?.Value;
if (value != null)
{
east = double.Parse(value, NumberStyles.Float, CultureInfo.InvariantCulture);
}
value = latLonBoxElement.Element(ns + "west")?.Value;
if (value != null)
{
west = double.Parse(value, NumberStyles.Float, CultureInfo.InvariantCulture);
}
value = latLonBoxElement.Element(ns + "rotation")?.Value;
if (value != null)
{
rotation = double.Parse(value, NumberStyles.Float, CultureInfo.InvariantCulture);
}
if (double.IsNaN(north) || double.IsNaN(south) ||
double.IsNaN(east) || double.IsNaN(west) ||
north <= south || east <= west)
{
throw new FormatException("Invalid LatLonBox");
}