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Fixed MapImageLayer boundingBox

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This commit is contained in:
ClemensF 2017-11-02 19:05:46 +01:00
parent 156ebfe177
commit 1861e9ca5d
2 changed files with 28 additions and 30 deletions
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14
MapControl/Shared/MapImageLayer.cs
View file

@ -223,9 +223,11 @@ namespace MapControl
{
updateInProgress = true;
UpdateBoundingBox();
ImageSource imageSource = null;
if (UpdateBoundingBox())
if (boundingBox != null)
{
try
{
@ -243,7 +245,7 @@ namespace MapControl
}
}
private bool UpdateBoundingBox()
private void UpdateBoundingBox()
{
var width = ParentMap.RenderSize.Width * RelativeImageSize;
var height = ParentMap.RenderSize.Height * RelativeImageSize;
@ -253,11 +255,8 @@ namespace MapControl
boundingBox = ParentMap.MapProjection.ViewportRectToBoundingBox(rect);
if (boundingBox == null || !boundingBox.HasValidBounds)
if (boundingBox != null && boundingBox.HasValidBounds)
{
return false;
}
if (!double.IsNaN(MinLatitude) && boundingBox.South < MinLatitude)
{
boundingBox.South = MinLatitude;
@ -284,8 +283,7 @@ namespace MapControl
boundingBox.West += d;
boundingBox.East -= d;
}
return true;
}
}
private void AdjustBoundingBox(double longitudeOffset)

2
MapControl/Shared/MapProjection.cs
View file

@ -163,7 +163,7 @@ namespace MapControl
/// </summary>
public virtual string WmsQueryParameters(BoundingBox boundingBox, string version = "1.3.0")
{
if (string.IsNullOrEmpty(CrsId))
if (string.IsNullOrEmpty(CrsId) || !boundingBox.HasValidBounds)
{
return null;
}