ClemensFischer/XAML-Map-Control
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MapPolypoint implementation

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ClemensFischer 2024-07-15 09:09:15 +02:00
parent d2c3382f46
commit cb01a6a12f
5 changed files with 165 additions and 201 deletions
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21
MapControl/WPF/MapPolypoint.WPF.cs
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@ -60,9 +60,9 @@ namespace MapControl
{
using (var context = ((StreamGeometry)Data).Open())
{
if (ParentMap != null && locations != null)
if (ParentMap != null && locations?.Count() >= 2)
{
var longitudeOffset = GetLongitudeOffset(Location ?? locations.FirstOrDefault());
var longitudeOffset = GetLongitudeOffset(Location ?? locations.First());
AddPolylinePoints(context, locations, longitudeOffset, closed);
}
@ -77,7 +77,7 @@ namespace MapControl
{
var longitudeOffset = GetLongitudeOffset(Location);
foreach (var polygon in polygons)
foreach (var polygon in polygons.Where(p => p?.Count() >= 2))
{
AddPolylinePoints(context, polygon, longitudeOffset, true);
}
@ -87,16 +87,13 @@ namespace MapControl
private void AddPolylinePoints(StreamGeometryContext context, IEnumerable<Location> locations, double longitudeOffset, bool closed)
{
if (locations.Count() >= 2)
{
var points = locations
.Select(location => LocationToView(location, longitudeOffset))
.Where(point => point.HasValue)
.Select(point => point.Value);
var points = locations
.Select(location => LocationToView(location, longitudeOffset))
.Where(point => point.HasValue)
.Select(point => point.Value);
context.BeginFigure(points.First(), true, closed);
context.PolyLineTo(points.Skip(1).ToList(), true, true);
}
context.BeginFigure(points.First(), true, closed);
context.PolyLineTo(points.Skip(1).ToList(), true, true);
}
}
}