def _validate_dxf_version(self, version: str) -> str:
version = version.upper()
version = acad_release_to_dxf_version.get(version, version) # translates 'R12' -> 'AC1009'
if version not in versions_supported_by_save:
raise DXFVersionError(f'Unsupported DXF version "{version}".')
if version == DXF12:
if self._dxfversion > DXF12:
logger.warning(f'Downgrade from DXF {self.acad_release} to R12 may create an invalid DXF file.')
elif version < self._dxfversion:
logger.info(f'Downgrade from DXF {self.acad_release} to {acad_release[version]} can cause lost of features.')
return version
def __init__(self, dxfversion=DXF2013):
self.entitydb = EntityDB()
self.dxffactory = EntityFactory(self)
self.tracker = Tracker()
target_dxfversion = dxfversion.upper()
self._dxfversion: str = acad_release_to_dxf_version.get(
target_dxfversion, target_dxfversion)
if self._dxfversion not in versions_supported_by_new:
raise DXFVersionError(
f'Unsupported DXF version "{self.dxfversion}".')
# Store original dxf version if loaded (and maybe converted R13/14) from file.
self._loaded_dxfversion: Optional[str] = None
self.encoding: str = 'cp1252' # read/write
self.filename: Optional[str] = None
# named objects dictionary
self.rootdict: 'Dictionary' = None
# DXF sections
self.header: HeaderSection = None
self.classes: ClassesSection = None
self.tables: TablesSection = None
self.blocks: BlocksSection = None
self.entities: EntitySection = None
self.objects: ObjectsSection = None
# DXF R2013 and later
self.acdsdata: AcDsDataSection = None
self.stored_sections = []
self.layouts: Layouts = None
self.groups: GroupCollection = None
self.materials: MaterialCollection = None
self.mleader_styles: MLeaderStyleCollection = None
self.mline_styles: MLineStyleCollection = None
self._acad_compatible = True # will generated DXF file compatible with AutoCAD
self._dimension_renderer = DimensionRenderer(
) # set DIMENSION rendering engine
self._acad_incompatibility_reason = set(
) # avoid multiple warnings for same reason
# Don't create any new entities here:
# New created handles could collide with handles loaded from DXF file.
assert len(self.entitydb) == 0
def __init__(self, dxfversion=DXF2013):
self.entitydb = EntityDB()
self.dxffactory = EntityFactory(self)
self.tracker = Tracker() # still required
# Targeted DXF version, but drawing could be exported as another DXF version.
# If target version is set, it is possible to warn user, if they try to use unsupported features, where they
# use it and not at exporting, where the location of the code who created that features is not known.
target_dxfversion = dxfversion.upper()
self._dxfversion = acad_release_to_dxf_version.get(
target_dxfversion, target_dxfversion)
self._loaded_dxfversion = None # if loaded from file, store original dxf version
self.encoding = 'cp1252'
self.filename = None # type: str # read/write
# named objects dictionary
self.rootdict = None # type: Dictionary
# DXF sections
self.header = None # type: HeaderSection
self.classes = None # type: ClassesSection
self.tables = None # type: TablesSection
self.blocks = None # type: BlocksSection
self.entities = None # type: EntitySection
self.objects = None # type: ObjectsSection
# DXF R2013 and later
self.acdsdata = None # type: AcDsDataSection
self.stored_sections = []
self.layouts = None # type: Layouts
self.groups = None # type: GroupCollection # read only
self.materials = None # type: MaterialCollection # read only
self.mleader_styles = None # type: MLeaderStyleCollection # read only
self.mline_styles = None # type: MLineStyleCollection # read only
self._acad_compatible = True # will generated DXF file compatible with AutoCAD
self._dimension_renderer = DimensionRenderer(
) # set DIMENSION rendering engine
self._acad_incompatibility_reason = set(
) # avoid multiple warnings for same reason
# Don't create any new entities here:
# New created handles could collide with handles loaded from DXF file.
assert len(self.entitydb) == 0
