public Polygon(string wkt)
{
InnerRings = new List <CoordinateList>();
// POLYGON ((30 10, 40 40, 20 40, 10 20, 30 10))
// POLYGON ((35 10, 45 45, 15 40, 10 20, 35 10), (20 30, 35 35, 30 20, 20 30))
var wktContent = GetWktContent(wkt);
var temp = wktContent.Replace("(", "_").Replace(")", "_").Split('_');
// __35 10, 45 45, 15 40, 10 20, 35 10_, _20 30, 35 35, 30 20, 20 30__
foreach (var x in temp)
{
var value = x.Trim();
if (value == string.Empty || value == ",")
{
continue;
}
if (OuterRing == null)
{
// 35 10, 45 45, 15 40, 10 20, 35 10
OuterRing = new CoordinateList(value);
}
else
{
// 20 30, 35 35, 30 20, 20 30
InnerRings.Add(new CoordinateList(value));
}
}
}
public LineString(string wkt)
{
// LINESTRING (30 10, 10 30, 40 40)
var wktContent = GetWktContent(wkt);
CoordinateList = new CoordinateList(wktContent);
}
protected override void FillGeometriesFromWkt(string wkt)
{
// MULTIPOINT ((10 40), (40 30), (20 20), (30 10))
// MULTIPOINT (10 40, 40 30, 20 20, 30 10)
var wktContent = GetWktContent(wkt);
if (wktContent.StartsWith("(("))
{ // ((10 40), (40 30), (20 20), (30 10))
wktContent = wktContent.Remove("(", ")");
}
// (10 40, 40 30, 20 20, 30 10)
var coordinateList = new CoordinateList(wktContent);
foreach (var coordinate in coordinateList.Coordinates)
{
AddGeometry(new Point(coordinate));
}
}
public LineString()
{
CoordinateList = new CoordinateList();
}
public Polygon()
{
OuterRing = new CoordinateList();
InnerRings = new List <CoordinateList>();
}