Var acBlkTblRec = (BlockTableRecord)acTrans.GetObject(acBlkTbl, OpenMode.ForWrite) ĪcPoly.AddVertexAt(0, acPoint, 0, -1, -1) ĪcPoly.AddVertexAt(1, new Point2d(acPoint.X + 20, acPoint.Y), 0, -1, -1) ĪcPoly.AddVertexAt(2, new Point2d(acPoint.X + 20, acPoint.Y + 20), 0.0, -1.0, -1.0) ĪcPoly.AddVertexAt(3, new Point2d(acPoint.X, acPoint.Y + 20), 0.0, -1.0, -1.0) Var acBlkTbl = (BlockTable)acTrans.GetObject(acDb.BlockTableId, OpenMode.ForRead) Here's an example: using (Transaction acTrans = ()) Any additional boundaries need to be appended separately, using the HatchLoopTypes.Default enum.

Use the AppendLoop method to add the initial exterior boundary of the hatch using HatchLoopTypes.External. OHatch.AppendLoop((int)HatchLoopTypes.Default, ObjIds) Ĭatch ( ex) OHatch.SetHatchPattern(HatchPatternType.PreDefined, hatchPattern) ObjectIdCollection ObjIds = new ObjectIdCollection() SymbolUtilityServices.GetBlockModelSpaceId(db) īlockTableRecord btr = Tx.GetObject(ModelSpaceId,Ī plBox = Here is the code to create the hatch ĭocument doc = However, we can create Region for the closed polylines, but not the hatch. I tried creating Regions and subtracting it. I tried adding both to the ObjectIdCollection, but that throws up an error. I need to cut a hole in the hatch pattern.

Autocad add hatch pattern