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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2469 | - | 1 | |
| 2 | namespace GMap.NET.WindowsPresentation |
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| 3 | { |
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| 4 | using System.Collections.Generic; |
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| 5 | using System.Windows.Shapes; |
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| 6 | |||
| 7 | public class GMapPolygon : GMapMarker, IShapable |
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| 8 | { |
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| 9 | public readonly List<PointLatLng> Points = new List<PointLatLng>(); |
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| 10 | |||
| 11 | public GMapPolygon(IEnumerable<PointLatLng> points) |
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| 12 | { |
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| 13 | Points.AddRange(points); |
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| 14 | RegenerateShape(null); |
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| 15 | } |
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| 16 | |||
| 17 | public override void Clear() |
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| 18 | { |
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| 19 | base.Clear(); |
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| 20 | Points.Clear(); |
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| 21 | } |
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| 22 | |||
| 23 | /// <summary> |
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| 24 | /// regenerates shape of polygon |
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| 25 | /// </summary> |
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| 26 | public virtual void RegenerateShape(GMapControl map) |
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| 27 | { |
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| 28 | if(map != null) |
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| 29 | { |
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| 30 | this.Map = map; |
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| 31 | |||
| 32 | if(Points.Count > 1) |
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| 33 | { |
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| 34 | Position = Points[0]; |
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| 35 | |||
| 36 | var localPath = new List<System.Windows.Point>(Points.Count); |
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| 37 | var offset = Map.FromLatLngToLocal(Points[0]); |
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| 38 | foreach(var i in Points) |
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| 39 | { |
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| 40 | var p = Map.FromLatLngToLocal(i); |
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| 41 | localPath.Add(new System.Windows.Point(p.X - offset.X, p.Y - offset.Y)); |
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| 42 | } |
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| 43 | |||
| 44 | var shape = map.CreatePolygonPath(localPath); |
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| 45 | |||
| 46 | if(this.Shape is Path) |
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| 47 | { |
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| 48 | (this.Shape as Path).Data = shape.Data; |
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| 49 | } |
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| 50 | else |
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| 51 | { |
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| 52 | this.Shape = shape; |
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| 53 | } |
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| 54 | } |
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| 55 | else |
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| 56 | { |
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| 57 | this.Shape = null; |
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| 58 | } |
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| 59 | } |
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| 60 | } |
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| 61 | } |
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| 62 | } |