Identify zero length curves

By Virupaksha Aithal

You can use database API “EraseEmptyObjects” to identify the zero length curves. This API can be used to erase the zero length curves or API can be used with database reactor to get the list of zero length curves as shown in below code

static ObjectIdCollection erasedIds = new ObjectIdCollection();
 
[CommandMethod("ZeroLengthCurves")]
static public void ZeroLengthCurves()
{
    Document doc = Application.DocumentManager.MdiActiveDocument;
    Database db = doc.Database;
    Editor ed = doc.Editor;
 
    //clear
    erasedIds.Clear();
 
    using (Transaction tr = db.TransactionManager.StartTransaction())
    {
        db.ObjectErased += 
                        new ObjectErasedEventHandler(db_ObjectErased);
        db.EraseEmptyObjects((int)(EraseFlags.ZeroLengthCurve));
        ed.WriteMessage("Zero length curves count = " 
                                + erasedIds.Count.ToString() + "n");
        db.ObjectErased -= 
                        new ObjectErasedEventHandler(db_ObjectErased);
 
        //abort 
        tr.Abort();
    }
}
 
static void db_ObjectErased(object sender, ObjectErasedEventArgs e)
{
    erasedIds.Add(e.DBObject.ObjectId);
}