ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2026-04-08 16:05:50 +00:00
Code Issues Projects Releases Packages Wiki Activity

Fixed moving transform center across dateline.

Browse source
This commit is contained in:
ClemensFischer 2022-11-24 23:24:51 +01:00
parent 7fbbf66acb
commit afc93704d9
7 changed files with 63 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

31
MapControl/Shared/MapImageLayer.cs
View file

@ -171,11 +171,11 @@ namespace MapControl
base.OnViewportChanged(e);
await UpdateImageAsync();
await UpdateImageAsync(); // update immediately
}
else
{
AdjustBoundingBox(e.LongitudeOffset);
ValidateBoundingBox();
base.OnViewportChanged(e);
@ -233,21 +233,30 @@ namespace MapControl
BoundingBox = ParentMap.ViewRectToBoundingBox(rect);
}
private void AdjustBoundingBox(double longitudeOffset)
private void ValidateBoundingBox()
{
if (Math.Abs(longitudeOffset) > 180d && BoundingBox != null)
if (BoundingBox != null)
{
var offset = 360d * Math.Sign(longitudeOffset);
var offset = ParentMap.Center.Longitude - BoundingBox.Center.Longitude;
BoundingBox = new BoundingBox(BoundingBox, offset);
foreach (var image in Children.OfType<Image>())
if (Math.Abs(offset) > 180d)
{
var imageBoundingBox = GetBoundingBox(image);
offset = 360d * Math.Sign(offset);
if (imageBoundingBox != null)
BoundingBox = new BoundingBox(
BoundingBox.South, BoundingBox.West + offset,
BoundingBox.North, BoundingBox.East + offset);
foreach (var image in Children.OfType<Image>())
{
SetBoundingBox(image, new BoundingBox(imageBoundingBox, offset));
var imageBbox = GetBoundingBox(image);
if (imageBbox != null)
{
SetBoundingBox(image, new BoundingBox(
imageBbox.South, imageBbox.West + offset,
imageBbox.North, imageBbox.East + offset));
}
}
}
}