/// <summary>
/// Initializes a new instance of the <see cref="LegFace"/> class
/// using the data read from persistent storage.
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
internal LegFace(EditDeserializer editDeserializer)
{
// Only connection paths should generate LegFace instances
PathOperation op = (editDeserializer.CurrentEdit as PathOperation);
if (op == null)
{
throw new ApplicationException("Unexpected creating edit for a leg face");
}
this.Sequence = editDeserializer.ReadInternalId(DataField.Id);
if (editDeserializer.IsNextField(DataField.PrimaryFaceId))
{
InternalIdValue primaryFaceId = editDeserializer.ReadInternalId(DataField.PrimaryFaceId);
LegFace face = op.FindFace(primaryFaceId);
if (face == null)
{
throw new ApplicationException("Cannot locate primary face " + primaryFaceId);
}
Leg = face.Leg;
Leg.AlternateFace = this;
}
else
{
// This should never happen. Primary faces are not serialized using the LegFace
// class (we only use LegFace as part of a PathOperation to simplify import of
// extra legs from old CEdit files).
throw new ApplicationException();
}
// Convert the data entry string into observed spans
string entryString = editDeserializer.ReadString(DataField.EntryString);
DistanceUnit defaultEntryUnit = EditingController.Current.EntryUnit;
Distance[] dists = LineSubdivisionFace.GetDistances(entryString, defaultEntryUnit, false);
m_Spans = new SpanInfo[dists.Length];
for (int i = 0; i < m_Spans.Length; i++)
{
m_Spans[i] = new SpanInfo()
{
ObservedDistance = dists[i]
};
}
}
