/// <summary>
/// A MultiPoint is simple if it has no repeated points.
/// </summary>
public virtual bool IsSimple(MultiPoint mp)
{
if (mp.IsEmpty)
return true;
ISet points = new ListSet();
for (int i = 0; i < mp.NumGeometries; i++)
{
Point pt = (Point)mp.GetGeometryN(i);
Coordinate p = pt.Coordinate;
if (points.Contains(p))
return false;
points.Add(p);
}
return true;
}
/// <summary>
///
/// </summary>
/// <param name="multiPoint"></param>
/// <returns></returns>
protected virtual int SetByteStreamLength(MultiPoint multiPoint)
{
int count = InitValue;
foreach (Point p in multiPoint.Geometries)
count += SetByteStreamLength(p);
return count;
}
/// <summary>
///
/// </summary>
/// <param name="multiPoint"></param>
/// <param name="writer"></param>
protected virtual void Write(MultiPoint multiPoint, XmlTextWriter writer)
{
writer.WriteStartElement("MultiPoint");
for (int i = 0; i < multiPoint.NumGeometries; i++)
{
writer.WriteStartElement("pointMember");
Write(multiPoint.Geometries[i] as Point, writer);
writer.WriteEndElement();
}
writer.WriteEndElement();
}
protected IFeature GetMultiPoint(int index)
{
ShapeRange shape = ShapeIndices[index];
List<Coordinate> coords = new List<Coordinate>();
foreach (PartRange part in shape.Parts)
{
int i = part.StartIndex;
foreach (Vertex vertex in part)
{
Coordinate c = new Coordinate(vertex);
coords.Add(c);
if (M != null && M.Length != 0) c.M = M[i];
if (Z != null && Z.Length != 0) c.Z = Z[i];
i++;
}
}
MultiPoint mp = new MultiPoint(coords);
return new Feature(mp);
}
