/// <summary>
/// Creates spatial features (points and lines) for this leg. The created
/// features don't have any geometry.
/// </summary>
/// <param name="ff">The factory for creating new spatial features</param>
/// <param name="startPoint">The point (if any) at the start of this leg. May be
/// null in a situation where the preceding leg ended with an "omit point" directive.</param>
/// <param name="lastPoint">The point that should be used for the very end
/// of the leg (specify null if a point should be created at the end of the leg).</param>
internal void CreateFeatures(FeatureFactory ff, PointFeature startPoint, PointFeature lastPoint)
{
// If we're dealing with a circular arc, create the underlying circle (and a
// center point). The radius of the circle is undefined at this stage, but the
// circle must be present so that created arcs can be cross-referenced to it.
// Note that it is conceivable that the center point will end up coinciding with
// another point in the map (it could even coincide with another circular leg in
// the same connection path).
CircularLeg cLeg = (this as CircularLeg);
if (cLeg != null)
{
cLeg.CreateCircle(ff, this.ItemSequence.ToString());
}
m_FirstSide.CreateFeatures(ff, startPoint, lastPoint);
// Should the end of an alternate face share the end point of the primary face??
if (m_OtherSide != null)
{
// If the leg is right at the end of a connection path, the alternate face needs to
// end at the specified point. Otherwise use the point that was created at the end
// of the primary face (in unusual cases, it's possible that no point was created
// there - in that case, the alternate face will create the end point).
PointFeature endLegPoint = lastPoint;
if (endLegPoint == null)
{
endLegPoint = m_FirstSide.GetEndPoint(ff.Creator);
}
m_OtherSide.CreateFeatures(ff, startPoint, endLegPoint);
}
}
