private MapItemPolygon AddPolygonWithInteriorRings(string itemTitle, Point[] polygon, List <Point[]> interiors)
{
if (polygon.Length < 3)
{
throw new ArgumentException("A polygon should contain at least 3 points");
}
if (polygon[0].Latitude != polygon[polygon.Length - 1].Latitude ||
polygon[0].Longitude != polygon[polygon.Length - 1].Longitude)
{
throw new ArgumentException("The last and first points in a polygon should be the same");
}
List <Point> totalShape = new List <Point>(polygon);
foreach (var interior in interiors)
{
if (interior.Length < 3)
{
throw new ArgumentException("A interior should contain at least 3 points");
}
if (interior[0].Latitude != interior[interior.Length - 1].Latitude ||
interior[0].Longitude != interior[interior.Length - 1].Longitude)
{
throw new ArgumentException("The last and first points in a interior should be the same");
}
totalShape.AddRange(new List <Point>(interior));
}
//-- To close off the polygon add the start point
totalShape.Add(new Point(totalShape[0].Latitude, totalShape[0].Longitude));
MapItemPolygon p = new MapItemPolygon(totalShape.ToArray())
{
T = itemTitle
};
Items.Add(p);
return(p);
}
private MapItemPolygon AddPolygon(string itemTitle, Point[] corners)
{
if (corners.Length < 3)
{
throw new ArgumentException("A polygon should contain at least 3 points");
}
if (corners[0].Latitude != corners[corners.Length - 1].Latitude ||
corners[0].Longitude != corners[corners.Length - 1].Longitude)
{
throw new ArgumentException("The last and first points in a polygon should be the same");
}
MapItemPolygon p = new MapItemPolygon(corners)
{
T = itemTitle
};
Items.Add(p);
return(p);
}