protected override void WorkCompleted(Environment model)
{
model.Entities.AddRange(whiteEntList, "Default", Color.WhiteSmoke);
model.Entities.AddRange(darkEntList, "Default", Color.FromArgb(31, 31, 31));
model.Entities.AddRange(offsetEntList, "Default", Color.DarkGray);
model.SetView(viewType.Trimetric);
model.ZoomFit();
}