getTinVolumeSurface(string nameSurf)
{
TinVolumeSurface objSurface = null;
try
{
using (Transaction tr = BaseObjs.startTransactionDoc())
{
ObjectIdCollection idsSurface = BaseObjs._civDoc.GetSurfaceIds();
foreach (ObjectId idSurface in idsSurface)
{
Autodesk.Civil.DatabaseServices.Surface surf = (Autodesk.Civil.DatabaseServices.Surface)tr.GetObject(idSurface, OpenMode.ForRead);
if (surf is TinVolumeSurface)
{
Autodesk.Civil.DatabaseServices.TinVolumeSurface objTinSurface = (TinVolumeSurface)surf;
if (objTinSurface.Name == nameSurf)
{
objSurface = objTinSurface;
}
}
}
tr.Commit();
}
}
catch (System.Exception ex)
{
BaseObjs.writeDebug(string.Format("{0} Surf.cs: line: 189", ex.Message));
}
return(objSurface);
}
public static Polyline3d ExtractBorders(this Autodesk.Civil.DatabaseServices.TinVolumeSurface surface)
{
var defBoundaries = surface.GetBoundariesDefinitions();
if (defBoundaries.Count() > 0)
{
return(defBoundaries.Last());
}
else
{
bool displayBoundariesChanged = false;
Autodesk.Civil.DatabaseServices.Styles.SurfaceStyle style = surface.StyleId.GetObjectForRead <Autodesk.Civil.DatabaseServices.Styles.SurfaceStyle>();
var displayStyle = style.GetDisplayStylePlan(Autodesk.Civil.DatabaseServices.Styles.SurfaceDisplayStyleType.Boundary);
if (!displayStyle.Visible)
{
style.UpgradeOpen();
displayStyle.Visible = true;
style.DowngradeOpen();
displayBoundariesChanged = true;
}
Polyline3d res = null;
DBObjectCollection dbcoll = new DBObjectCollection();
surface.Explode(dbcoll);
foreach (var dbobj in dbcoll)
{
if (dbobj is BlockReference)
{
dbcoll.Clear();
((BlockReference)dbobj).Explode(dbcoll);
List <Polyline3d> lines = new List <Polyline3d>();
foreach (var ent in dbcoll)
{
if (ent is Polyline3d)
{
Polyline3d pline = ent as Polyline3d;
if (pline.Closed)
{
lines.Add(pline);
}
}
}
//lines.Sort((l1, l2) => Comparer<double>.Default.Compare(l1.Area, l2.Area));
res = lines.LastOrDefault();
break;
}
}
if (displayBoundariesChanged)
{
style.UpgradeOpen();
displayStyle.Visible = false;
style.DowngradeOpen();
}
return(res);
}
}
