public IPolygon CreatePolygon(ILinearRing shell, IEnumerable<ILinearRing> holes)
{
LinearRing l = shell as LinearRing;
if (l == null)
{
throw new ArgumentException("Parameter must be a non-null LinearRing instance");
}
Polygon p = new Polygon(l, Enumerable.Downcast<LinearRing, ILinearRing>(holes));
p.Factory = this;
return p;
}
public IGeometry ToGeometry(IExtents envelopeInternal)
{
ICoordinate[] verticies = new ICoordinate[5];
ICoordinate min = envelopeInternal.Min;
ICoordinate max = envelopeInternal.Max;
verticies[0] = max;
verticies[1] = CoordinateFactory.Create(min[Ordinates.X], max[Ordinates.Y]);
verticies[2] = min;
verticies[3] = CoordinateFactory.Create(max[Ordinates.X], min[Ordinates.Y]);
verticies[4] = max;
LinearRing ring = new LinearRing(verticies);
ring.Factory = this;
Polygon p = new Polygon(ring);
p.Factory = this;
return p;
}
public IPolygon CreatePolygon(ILinearRing shell)
{
LinearRing l = shell as LinearRing;
if(l == null)
{
throw new ArgumentException(
"Parameter must be a non-null LinearRing instance");
}
//l.Factory = this;
Polygon p = new Polygon(l);
p.Factory = this;
return p;
}
public IPolygon CreatePolygon(IEnumerable<ICoordinate> shell)
{
LinearRing ring = CreateLinearRing(shell) as LinearRing;
ring.Factory = this;
Polygon p = new Polygon(ring);
p.Factory = this;
return p;
}
public IPolygon CreatePolygon()
{
Polygon p = new Polygon();
p.Factory = this;
return p;
}
/// <summary>
/// Creates a deep copy of the Polygon.
/// </summary>
/// <returns>A copy of the Polygon instance.</returns>
public override Geometry Clone()
{
Polygon p = new Polygon();
p.ExteriorRing = ExteriorRing.Clone() as LinearRing;
foreach (LinearRing ring in InteriorRings)
{
p.InteriorRings.Add(ring.Clone() as LinearRing);
}
return p;
}
///// <summary>
///// Transforms the polygon to image coordinates, based on the map
///// </summary>
///// <param name="map">Map to base coordinates on</param>
///// <returns>Polygon in image coordinates</returns>
//public RenderPoint[] TransformToView(SharpMap.Map map)
//{
// Int32 vertices = _ExteriorRing.Vertices.Count;
// for (Int32 i = 0; i < _InteriorRings.Count;i++)
// vertices += _InteriorRings[i].Vertices.Count;
// System.Drawing.PointF[] v = new System.Drawing.PointF[vertices];
// for (Int32 i = 0; i < _ExteriorRing.Vertices.Count; i++)
// v[i] = SharpMap.Utilities.Transform.WorldToMap(_ExteriorRing.Vertices[i], map);
// Int32 j = _ExteriorRing.Vertices.Count;
// for (Int32 k = 0; k < _InteriorRings.Count;k++)
// {
// for (Int32 i = 0; i < _InteriorRings[k].Vertices.Count; i++)
// v[j + i] = SharpMap.Utilities.Transform.WorldToMap(_InteriorRings[k].Vertices[i], map);
// j += _InteriorRings[k].Vertices.Count;
// }
// return v;
//}
#region "Inherited methods from abstract class Geometry"
/// <summary>
/// Determines if this Polygon and the specified Polygon object has the same values
/// </summary>
/// <param name="p">Polygon to compare with</param>
/// <returns></returns>
public Boolean Equals(Polygon p)
{
if (ReferenceEquals(p, null))
{
return false;
}
if (!p.ExteriorRing.Equals(ExteriorRing))
{
return false;
}
if (p.InteriorRings.Count != InteriorRings.Count)
{
return false;
}
for (Int32 i = 0; i < p.InteriorRings.Count; i++)
{
if (!p.InteriorRings[i].Equals(InteriorRings[i]))
{
return false;
}
}
return true;
}
