static bool IsPolygonHasHole(Transaction tr, Entity entity)
{
ObjectId[] entityIds = GroupUtils.GetGroupedObjects(tr, entity);
foreach (ObjectId entityId in entityIds)
{
// 如果是本地块，直接skip
if (entity.ObjectId == entityId)
{
continue;
}
using (var ent = tr.GetObject(entityId, OpenMode.ForRead))
{
if (ent is Polyline2d || ent is Polyline)
{
string cassFlag = CadUtils.GetCassFlag(ent);
if (CassFlagIsland.ToLower() == cassFlag.ToLower())
{
return(true);
}
}
}
}
return(false);
}
public static ObjectId[] FindHolesInEntity(Transaction tr, Entity entity)
{
ObjectId[] entityIds = GroupUtils.GetGroupedObjects(tr, entity);
var holeIds = new List <ObjectId>();
foreach (ObjectId entityId in entityIds)
{
using (var ent = tr.GetObject(entityId, OpenMode.ForRead))
{
if (ent is Polyline2d || ent is Polyline)
{
string cassFlag = CadUtils.GetCassFlag(ent);
if (CassFlagIsland.ToLower() == cassFlag.ToLower())
{
holeIds.Add(entityId);
}
}
}
}
return(holeIds.ToArray());
}
