public static ObjectId FindParcelOfHole(Transaction tr, Entity hole)
{
var entityIds = GroupUtils.GetGroupedObjects(tr, hole);
ObjectId entityId = ObjectId.Null;
foreach (var objectId in entityIds)
{
if (objectId == hole.Id)
{
continue;
}
using (var ent = tr.GetObject(objectId, OpenMode.ForRead))
{
if (ent is Polyline2d || ent is Polyline)
{
string cassFlag = CadUtils.GetCassFlag(ent);
if (CassFlagName.ToLower() == cassFlag.ToLower())
{
entityId = objectId;
break;
}
}
}
}
return(entityId);
}
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 void CleanupSelfRefHoles(ObjectId[] holeIds)
{
var database = holeIds[0].Database;
using (var tr = database.TransactionManager.StartTransaction())
{
foreach (var holeId in holeIds)
{
var hole = database.TransactionManager.GetObject(holeId, OpenMode.ForRead) as Entity;
var col = hole.GetPersistentReactorIds();
if (col != null)
{
foreach (ObjectId id in col)
{
using (DBObject obj = tr.GetObject(id, OpenMode.ForRead))
{
if (obj is Group)
{
var group = obj as Group;
group.UpgradeOpen();
var objectIds = GroupUtils.GetGroupedObjects(tr, hole);
// 如果组里面只有一个，直接删除组
if (objectIds.Count() == 1)
{
group.Erase();
}
// 如果组里面有两个，并且两个编码一样
if (objectIds.Count() == 2 && objectIds[0] == objectIds[1])
{
group.Erase();
}
}
}
}
}
}
tr.Commit();
}
}
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());
}
