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ClemensFischer 2026-04-13 17:14:49 +02:00
parent c14377f976
commit 65aba44af6
152 changed files with 11962 additions and 12115 deletions
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163
MapControl/Shared/MapPath.cs
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@ -12,105 +12,104 @@ using Avalonia;
using Avalonia.Media;
#endif
namespace MapControl
namespace MapControl;
/// <summary>
/// A path element with a Data property that holds a Geometry in view coordinates or
/// projected map coordinates that are relative to an origin Location.
/// </summary>
public partial class MapPath : IMapElement
{
public static readonly DependencyProperty LocationProperty =
DependencyPropertyHelper.Register<MapPath, Location>(nameof(Location), null,
(path, oldValue, newValue) => path.UpdateData());
/// <summary>
/// A path element with a Data property that holds a Geometry in view coordinates or
/// projected map coordinates that are relative to an origin Location.
/// Gets or sets a Location that is either used as
/// - the origin point of a geometry specified in projected map coordinates (meters) or
/// - as an optional anchor point to constrain the view position of MapPaths with
/// multiple Locations (like MapPolyline or MapPolygon) to the visible map viewport,
/// as done for elements where the MapPanel.Location property is set.
/// </summary>
public partial class MapPath : IMapElement
public Location Location
{
public static readonly DependencyProperty LocationProperty =
DependencyPropertyHelper.Register<MapPath, Location>(nameof(Location), null,
(path, oldValue, newValue) => path.UpdateData());
get => (Location)GetValue(LocationProperty);
set => SetValue(LocationProperty, value);
}
/// <summary>
/// Gets or sets a Location that is either used as
/// - the origin point of a geometry specified in projected map coordinates (meters) or
/// - as an optional anchor point to constrain the view position of MapPaths with
/// multiple Locations (like MapPolyline or MapPolygon) to the visible map viewport,
/// as done for elements where the MapPanel.Location property is set.
/// </summary>
public Location Location
/// <summary>
/// Implements IMapElement.ParentMap.
/// </summary>
public MapBase ParentMap
{
get;
set
{
get => (Location)GetValue(LocationProperty);
set => SetValue(LocationProperty, value);
}
/// <summary>
/// Implements IMapElement.ParentMap.
/// </summary>
public MapBase ParentMap
{
get;
set
if (field != null)
{
if (field != null)
{
field.ViewportChanged -= OnViewportChanged;
}
field = value;
if (field != null)
{
field.ViewportChanged += OnViewportChanged;
}
UpdateData();
field.ViewportChanged -= OnViewportChanged;
}
field = value;
if (field != null)
{
field.ViewportChanged += OnViewportChanged;
}
}
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
UpdateData();
}
}
protected void SetDataTransform(Matrix matrix)
{
if (Data.Transform is MatrixTransform transform
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
UpdateData();
}
protected void SetDataTransform(Matrix matrix)
{
if (Data.Transform is MatrixTransform transform
#if WPF
&& !transform.IsFrozen
&& !transform.IsFrozen
#endif
)
{
transform.Matrix = matrix;
}
else
{
Data.Transform = new MatrixTransform { Matrix = matrix };
}
}
protected virtual void UpdateData()
)
{
if (Data != null && ParentMap != null && Location != null)
{
SetDataTransform(ParentMap.GetMapToViewTransform(Location));
}
MapPanel.SetLocation(this, Location);
transform.Matrix = matrix;
}
protected Point LocationToMap(Location location, double longitudeOffset)
else
{
var point = ParentMap.MapProjection.LocationToMap(location.Latitude, location.Longitude + longitudeOffset);
if (point.Y == double.PositiveInfinity)
{
point = new Point(point.X, 1e9);
}
else if (point.Y == double.NegativeInfinity)
{
point = new Point(point.X, -1e9);
}
return point;
}
protected Point LocationToView(Location location, double longitudeOffset)
{
return ParentMap.ViewTransform.MapToView(LocationToMap(location, longitudeOffset));
Data.Transform = new MatrixTransform { Matrix = matrix };
}
}
protected virtual void UpdateData()
{
if (Data != null && ParentMap != null && Location != null)
{
SetDataTransform(ParentMap.GetMapToViewTransform(Location));
}
MapPanel.SetLocation(this, Location);
}
protected Point LocationToMap(Location location, double longitudeOffset)
{
var point = ParentMap.MapProjection.LocationToMap(location.Latitude, location.Longitude + longitudeOffset);
if (point.Y == double.PositiveInfinity)
{
point = new Point(point.X, 1e9);
}
else if (point.Y == double.NegativeInfinity)
{
point = new Point(point.X, -1e9);
}
return point;
}
protected Point LocationToView(Location location, double longitudeOffset)
{
return ParentMap.ViewTransform.MapToView(LocationToMap(location, longitudeOffset));
}
}