/// <summary>
/// Returns a deep copy of this collection.
/// </summary>
/// <returns>The copied object.</returns>
public object Clone()
{
CoordinateList copy = new CoordinateList();
foreach (var c in this)
{
copy.Add(c.Copy());
}
return(copy);
}
/**
* Extracts the coordinates which intersect an {@link Envelope}.
*
* @param coordinates the coordinates to scan
* @param env the envelope to intersect with
* @return an array of the coordinates which intersect the envelope
*/
public static Coordinate[] Intersection(Coordinate[] coordinates, Envelope env)
{
CoordinateList coordList = new CoordinateList();
for (int i = 0; i < coordinates.Length; i++)
{
Coordinate c = coordinates[i];
if (env.Intersects(c))
{
coordList.Add(c, true);
}
}
return(coordList.ToCoordinateArray());
}
/// <summary>
/// Function to convert <c>this</c> octagonal envelope into a geometry
/// </summary>
/// <param name="geomFactory">The factory to create the geometry</param>
/// <returns>A geometry</returns>
public IGeometry ToGeometry(IGeometryFactory geomFactory)
{
if (geomFactory == null)
{
throw new ArgumentNullException(nameof(geomFactory));
}
if (IsNull)
{
return(geomFactory.CreatePoint());
}
var px00 = new Coordinate(_minX, _minA - _minX);
var px01 = new Coordinate(_minX, _minX - _minB);
var px10 = new Coordinate(_maxX, _maxX - _maxB);
var px11 = new Coordinate(_maxX, _maxA - _maxX);
var py00 = new Coordinate(_minA - _minY, _minY);
var py01 = new Coordinate(_minY + _maxB, _minY);
var py10 = new Coordinate(_maxY + _minB, _maxY);
var py11 = new Coordinate(_maxA - _maxY, _maxY);
var pm = geomFactory.PrecisionModel;
pm.MakePrecise(px00);
pm.MakePrecise(px01);
pm.MakePrecise(px10);
pm.MakePrecise(px11);
pm.MakePrecise(py00);
pm.MakePrecise(py01);
pm.MakePrecise(py10);
pm.MakePrecise(py11);
var coordList = new CoordinateList();
coordList.Add(px00, false);
coordList.Add(px01, false);
coordList.Add(py10, false);
coordList.Add(py11, false);
coordList.Add(px11, false);
coordList.Add(px10, false);
coordList.Add(py01, false);
coordList.Add(py00, false);
if (coordList.Count == 1)
{
return(geomFactory.CreatePoint(px00));
}
Coordinate[] pts;
if (coordList.Count == 2)
{
pts = coordList.ToCoordinateArray();
return(geomFactory.CreateLineString(pts));
}
// must be a polygon, so add closing point
coordList.Add(px00, false);
pts = coordList.ToCoordinateArray();
return(geomFactory.CreatePolygon(geomFactory.CreateLinearRing(pts)));
}