/// <summary>
/// Converts a Polygon into a Bing Maps MapPolygon with a defined style.
/// </summary>
/// <param name="polygon">Polygon to convert to a MapPolygon.</param>
/// <param name="style">Style to use to render shape</param>
/// <returns>A MapElement that represent the Polygon.</returns>
public static MapElement GenerateMapShape(Polygon polygon, ShapeStyle style)
{
if (polygon != null && polygon.ExteriorRing != null && polygon.ExteriorRing.Count >= 3)
{
var shapes = new Collection <MapElement>();
var locs = polygon.ExteriorRing;
//Ensure polygon is closed.
locs.Add(locs[0]);
//Outline inner rings.
foreach (var i in polygon.InteriorRings)
{
//Ensure inner ring is closed.
i.Add(i[0]);
//Add inner rings to main list of locations
locs.AddRange(i);
//Loop back to starting point.
locs.Add(locs[0]);
}
var poly = new MapPolygon();
foreach (var p in locs.ToBMGeometry())
{
poly.Path.Add(p);
}
//Set polygon style
ApplyStyle(poly, style);
//Add metadata as to Tag property if added in Bing Maps
if (poly != null)
{
poly.SetValue(MapElementExt.TagProperty, polygon.Metadata);
}
return(poly);
}
return(null);
}
/// <summary>
/// Converts a Polygon into a MapPolygon.
/// Note that MapPolygon's do not support holes.
/// </summary>
/// <param name="polygon">A Polygon object</param>
/// <returns>A MapPolygon object</returns>
public static MapPolygon ToBMGeometry(this Polygon polygon)
{
var myPoly = new MapPolygon()
{
Path = polygon.ExteriorRing.ToBMGeometry(),
FillColor = new Color()
{
A = 150,
G = 255
},
StrokeColor = new Color()
{
A = 150,
G = 255
},
StrokeThickness = 3
};
myPoly.SetValue(MapElementExt.TagProperty, polygon.Metadata);
//TODO: Add support for holes/inner rings in the future.
return(myPoly);
}
public static List <MapShape> GenerateMapShape(Polygon polygon, ShapeStyle style)
{
if (polygon != null && polygon.ExteriorRing != null && polygon.ExteriorRing.Count >= 3)
{
var shapes = new List <MapShape>();
var locs = polygon.ExteriorRing;
//Ensure polygon is closed.
locs.Add(locs[0]);
//This uses a workaround to create outline of polygon
if (style == null || style.OutlinePolygon)
{
var l = GenerateMapShape(locs, style);
if (l != null)
{
shapes.Add(l);
}
}
//Outline inner rings.
foreach (var i in polygon.InteriorRings)
{
//Ensure inner ring is closed.
i.Add(i[0]);
var l = GenerateMapShape(i, style);
if (l != null)
{
if (style == null || style.OutlinePolygon)
{
shapes.Add(l);
}
//Add inner rings to main list of locations
locs.AddRange(i);
//Loop back to starting point.
locs.Add(locs[0]);
}
}
var poly = new MapPolygon()
{
Locations = locs.ToBMGeometry()
};
//Set polygon style
ApplyStyle(poly, style);
//Add metadata as to Tag property if added in Bing Maps
if (poly != null)
{
poly.SetValue(MapShapeExt.TagProperty, polygon.Metadata);
}
shapes.Insert(0, poly);
return(shapes);
}
return(null);
}
