ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2026-04-05 22:46:58 +00:00
Code Issues Projects Releases Packages Wiki Activity

General map graticule for WPF

Browse source
This commit is contained in:
Clemens 2022-03-04 22:28:18 +01:00
parent c998f19fe5
commit a07948be02
11 changed files with 414 additions and 122 deletions
Download patch file Download diff file Expand all files Collapse all files

91
MapControl/Shared/MapBase.cs
View file

@ -279,7 +279,7 @@ namespace MapControl
public void SetTransformCenter(Point center)
{
transformCenter = ViewToLocation(center);
viewCenter = center;
viewCenter = transformCenter != null ? center : new Point(RenderSize.Width / 2d, RenderSize.Height / 2d);
}
/// <summary>
@ -304,7 +304,11 @@ namespace MapControl
if (translation.X != 0d || translation.Y != 0d)
{
Center = ViewToLocation(viewCenter - translation);
var center = ViewToLocation(viewCenter - translation);
if (center != null)
{
Center = center;
}
}
}
@ -317,8 +321,8 @@ namespace MapControl
{
if (rotation != 0d || scale != 1d)
{
transformCenter = ViewToLocation(center);
viewCenter = center + translation;
SetTransformCenter(center);
viewCenter += translation;
if (rotation != 0d)
{
@ -367,11 +371,16 @@ namespace MapControl
{
var rect = MapProjection.BoundingBoxToRect(boundingBox);
var center = new Point(rect.X + rect.Width / 2d, rect.Y + rect.Height / 2d);
var scale = Math.Min(RenderSize.Width / rect.Width, RenderSize.Height / rect.Height);
var targetCenter = MapProjection.MapToLocation(center);
TargetZoomLevel = ViewTransform.ScaleToZoomLevel(scale);
TargetCenter = MapProjection.MapToLocation(center);
TargetHeading = 0d;
if (targetCenter != null)
{
var scale = Math.Min(RenderSize.Width / rect.Width, RenderSize.Height / rect.Height);
TargetZoomLevel = ViewTransform.ScaleToZoomLevel(scale);
TargetCenter = targetCenter;
TargetHeading = 0d;
}
}
internal double ConstrainedLongitude(double longitude)
@ -700,46 +709,58 @@ namespace MapControl
private void UpdateTransform(bool resetTransformCenter = false, bool projectionChanged = false)
{
var viewScale = ViewTransform.ZoomLevelToScale(ZoomLevel);
var center = transformCenter ?? Center;
var projection = MapProjection;
projection.Center = ProjectionCenter ?? Center;
ViewTransform.SetTransform(projection.LocationToMap(center), viewCenter, viewScale, Heading);
var mapCenter = projection.LocationToMap(transformCenter ?? Center);
if (transformCenter != null)
if (MapProjection.IsValid(mapCenter))
{
center = ViewToLocation(new Point(RenderSize.Width / 2d, RenderSize.Height / 2d));
center.Longitude = Location.NormalizeLongitude(center.Longitude);
ViewTransform.SetTransform(mapCenter, viewCenter, viewScale, Heading);
if (center.Latitude < -projection.MaxLatitude || center.Latitude > projection.MaxLatitude)
if (transformCenter != null)
{
center.Latitude = Math.Min(Math.Max(center.Latitude, -projection.MaxLatitude), projection.MaxLatitude);
resetTransformCenter = true;
var center = ViewToLocation(new Point(RenderSize.Width / 2d, RenderSize.Height / 2d));
if (center != null)
{
center.Longitude = Location.NormalizeLongitude(center.Longitude);
if (center.Latitude < -projection.MaxLatitude || center.Latitude > projection.MaxLatitude)
{
center.Latitude = Math.Min(Math.Max(center.Latitude, -projection.MaxLatitude), projection.MaxLatitude);
resetTransformCenter = true;
}
SetValueInternal(CenterProperty, center);
if (centerAnimation == null)
{
SetValueInternal(TargetCenterProperty, center);
}
if (resetTransformCenter)
{
ResetTransformCenter();
projection.Center = ProjectionCenter ?? center;
mapCenter = projection.LocationToMap(center);
if (MapProjection.IsValid(mapCenter))
{
ViewTransform.SetTransform(mapCenter, viewCenter, viewScale, Heading);
}
}
}
}
SetValueInternal(CenterProperty, center);
SetViewScale(ViewTransform.Scale);
if (centerAnimation == null)
{
SetValueInternal(TargetCenterProperty, center);
}
OnViewportChanged(new ViewportChangedEventArgs(projectionChanged, Center.Longitude - centerLongitude));
if (resetTransformCenter)
{
ResetTransformCenter();
projection.Center = ProjectionCenter ?? center;
ViewTransform.SetTransform(projection.LocationToMap(center), viewCenter, viewScale, Heading);
}
centerLongitude = Center.Longitude;
}
SetViewScale(ViewTransform.Scale);
OnViewportChanged(new ViewportChangedEventArgs(projectionChanged, Center.Longitude - centerLongitude));
centerLongitude = Center.Longitude;
}
protected override void OnViewportChanged(ViewportChangedEventArgs e)