public static bool IsHoleReferenced(Entity ent, Transaction tr) { if (ent is Polyline2d || ent is Polyline) { // 如果不是flag,没有被引用 string cassFlag = CadUtils.GetCassFlag(ent); if (CassFlagIsland.ToLower() != cassFlag.ToLower()) { return(false); } var groupId = GroupUtils.FindEntityGroupId(tr, ent); if (!groupId.IsValid) { return(false); } // 如果不是flag,没有被引用 //ObjectId[] entityIds = GroupUtils.GetGroupedObjects(ent); //foreach (ObjectId entityId in entityIds) //{ //} var realId = ParcelPolygon.FindParcelOfHole(tr, ent); if (realId.IsNull) { return(false); } return(true); } return(false); }
public static decimal GetPolygonArea(Transaction tr, Entity entity) { var parcelPolygon = new ParcelPolygon(tr, entity as Curve); return(parcelPolygon.GetArea()); }
public static decimal GetPolygonArea(ObjectId objectId) { var parcelPolygon = new ParcelPolygon(objectId); return(parcelPolygon.GetArea()); }
public static void SelectHoleToRemoveArea() { var holeIds = new ObjectId[0]; ObjectId parcelId = ObjectId.Null; Document document = Application.DocumentManager.MdiActiveDocument; document.Editor.WriteMessage("\n选择需要扣除面积的孔洞: "); var result = StartSelectPolyline(false); if (result.Status != PromptStatus.OK) { return; } // 洞 if (result.Value.Count >= 1) { holeIds = result.Value.GetObjectIds(); } // 检查地块是否封闭 using (var tr = document.Database.TransactionManager.StartTransaction()) { foreach (var objectId in holeIds) { var curve = tr.GetObject(objectId, OpenMode.ForRead) as Curve; if (curve != null && !curve.Closed) { document.Editor.WriteMessage("\n错误:选择的孔洞不封闭"); return; } } } // 外边界 Point3d pickedPoint; if (!SelectPolylineEntity("\n选择要扣除面积的地块界线: ", "\n实体错误", out parcelId, out pickedPoint) || parcelId == ObjectId.Null) { return; } // 检查地块是否封闭 using (var tr = document.Database.TransactionManager.StartTransaction()) { var curve = tr.GetObject(parcelId, OpenMode.ForRead) as Curve; if (curve != null && !curve.Closed) { document.Editor.WriteMessage("\n错误:选择的地块界线不封闭"); return; } } // 如果地块是合适的 if (parcelId.IsValid && holeIds.Any()) { foreach (var objectId in holeIds) { if (objectId == parcelId) { document.Editor.WriteMessage("\n错误:句柄为{0}的孔洞与地块边界相同", objectId.Handle); return; } if (!WithIn(objectId, parcelId)) { document.Editor.WriteMessage("\n错误:句柄为{0}的孔洞不在地块边界内部", objectId.Handle); return; } } // 新增孔洞到地块 var parcel = new ParcelPolygon(parcelId); parcel.AddHoleIds(holeIds); document.Editor.WriteMessage("\n将{0}个多边形设定为扣除面积的孔洞", holeIds.Count()); } }