Advanced DXF Issues From AutoCAD DXF Format previous page next page Slide Library FilesDatabase Objects DXF Reference > Advanced DXF Issues This appendix discusses the advanced concepts related to DXF™ group codes.Topics in this sectionDatabase ObjectsPersistent Inter-Object Reference HandlesSubclass MarkersExtension Dictionary and Persistent ReactorsExtended DataObject Coordinate Systems (OCS)Arbitrary Axis Algorithm previous page start next page
