/// <summary>
/// Changes the color of the edges for each ring.
/// </summary>
/// <param name="ring">[in] Ring object.</param>
/// <returns>
/// Returns true if successful.
/// </returns>
private bool HighLightRingEdges(Ring ring)
{
// Show how to get 1/2 edges in the Ring.
HalfEdgeCollection edgeCollection = ring.GetEdges();
using (Transaction trans = Application.DocumentManager.MdiActiveDocument.TransactionManager.StartTransaction())
{
// Loops through and highlights all the edges
int edgeIndex = 0;
foreach (HalfEdge halfEdge in edgeCollection)
{
FullEdge fullEdge = halfEdge.FullEdge;
ObjectId objId = fullEdge.Entity;
Entity entity = trans.GetObject(objId, Autodesk.AutoCAD.DatabaseServices.OpenMode.ForWrite, false) as Entity;
if (null != entity)
entity.ColorIndex = edgeIndex + 1;
edgeIndex = edgeIndex + 1;
}
trans.Commit();
}
return true;
}
