/// <summary>
/// Initializes a new instance of the <see cref="PointFeature"/> class (with geometry that
/// isn't shared with any other point), and records it as part of the map model.
/// </summary>
/// <param name="f">Basic information about the feature.</param>
/// <param name="g">The geometry for the point (may be null)</param>
internal PointFeature(IFeature f, PointGeometry g)
: base(f)
{
if (g == null)
m_Geom = null;
else
m_Geom = new Node(this, g);
}
/// <summary>
/// Creates a new <c>PointFeature</c> with geometry that isn't shared
/// with any other point.
/// </summary>
/// <param name="creator">The operation that created the feature (not null)</param>
/// <param name="id">The internal ID of this feature within the project that created it.</param>
/// <param name="e">The entity type for the feature (not null)</param>
/// <param name="g">The geometry for the point (may be null)</param>
internal PointFeature(Operation creator, InternalIdValue id, IEntity e, PointGeometry g)
: base(creator, id, e, null)
{
if (g == null)
m_Geom = null;
else
m_Geom = new Node(this, g);
}
/// <summary>
/// Initializes a new instance of the <see cref="PointFeature"/> class
/// using the data read from persistent storage.
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
internal PointFeature(EditDeserializer editDeserializer)
: base(editDeserializer)
{
long x, y;
ReadData(editDeserializer, out x, out y);
m_Geom = new Node(this, new PointGeometry(x, y));
}
/// <summary>
/// Defines the position of this point to refer to an existing node.
/// </summary>
/// <param name="value">The position to assign</param>
internal void SetNode(Node value)
{
m_Geom = value;
}
/// <summary>
/// Defines the position of this point as a new un-shared position.
/// </summary>
/// <param name="ctx">The context in which the assignment is being made. May be null, but do
/// so with care - an editing context is vital when dealing with the propagation of updates.
/// </param>
/// <param name="value">The position to assign (not null).</param>
internal void ApplyPointGeometry(EditingContext ctx, PointGeometry value)
{
if (value == null)
throw new ArgumentNullException();
if (ctx != null)
ctx.RegisterChange(this);
m_Geom = new Node(this, value);
}