/// <summary>
/// Gets the in plane flat.
/// </summary>
/// <param name="startFace">The start face.</param>
/// <returns>Flat.</returns>
private static Flat GetInPlaneFlat(PolygonalFace startFace)
{
var flat = new Flat(new List<PolygonalFace>(new[] { startFace }));
var visitedFaces = new HashSet<PolygonalFace>(startFace.AdjacentFaces);
visitedFaces.Add(startFace);
var stack = new Stack<PolygonalFace>(visitedFaces);
while (stack.Any())
{
var face = stack.Pop();
if (!flat.IsNewMemberOf(face)) continue;
flat.UpdateWith(face);
foreach (var adjacentFace in face.AdjacentFaces)
if (!visitedFaces.Contains(adjacentFace))
{
visitedFaces.Add(adjacentFace);
stack.Push(adjacentFace);
}
}
return flat;
}
