/// <summary>
/// Ensures that a persistent field has been associated with a spatial feature.
/// </summary>
/// <param name="field">A tag associated with the item</param>
/// <param name="feature">The feature to assign to the field (not null).</param>
/// <returns>
/// True if a matching field was processed. False if the field is not known to this
/// class (may be known to another class in the type hierarchy).
/// </returns>
public bool ApplyFeatureRef(DataField field, Feature feature)
{
if (field == DataField.Center)
{
PointFeature center = (PointFeature)feature;
m_Circle = new Circle(center, 0.0);
center.AddReference(m_Circle);
return(true);
}
if (field == DataField.FirstArc)
{
ArcFeature firstArc = (ArcFeature)feature;
m_Circle = firstArc.Circle;
return(true);
}
return(false);
}
/// <summary>
/// Adds references to the features that this dependent is dependent on.
/// </summary>
internal void AddReferences()
{
m_Center.AddReference(this);
}