def __init__(self, dxfversion=DXF2013):
self.entitydb = EntityDB()
target_dxfversion = dxfversion.upper()
self._dxfversion: str = const.acad_release_to_dxf_version.get(
target_dxfversion, target_dxfversion)
if self._dxfversion not in const.versions_supported_by_new:
raise const.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
# Status flag which is True while loading content from a DXF file:
self.is_loading = False
self.encoding: str = "cp1252" # read/write
self.filename: Optional[str] = None
# Reason for using "type: ignore".
# I won't use "Optional" for the following attributes because these
# objects are required, just not yet! Setting up an empty DXF Document
# is not necessary if the document is read from the file system,
# see class-methods new() and read().
# named objects dictionary
self.rootdict: "Dictionary" = None # type: ignore
# DXF sections
self.header: HeaderSection = None # type: ignore
self.classes: ClassesSection = None # type: ignore
self.tables: TablesSection = None # type: ignore
self.blocks: BlocksSection = None # type: ignore
self.entities: EntitySection = None # type: ignore
self.objects: ObjectsSection = None # type: ignore
# DXF R2013 and later
self.acdsdata: AcDsDataSection = None # type: ignore
self.stored_sections: List[StoredSection] = []
self.layouts: Layouts = None # type: ignore
self.groups: GroupCollection = None # type: ignore
self.materials: MaterialCollection = None # type: ignore
self.mleader_styles: MLeaderStyleCollection = None # type: ignore
self.mline_styles: MLineStyleCollection = None # type: ignore
# Set to False if the generated DXF file will be incompatible to AutoCAD
self._acad_compatible = True
# Store reasons for AutoCAD incompatibility:
self._acad_incompatibility_reason = set()
# DIMENSION rendering engine can be replaced by a custom Dimension
# render: see property Drawing.dimension_renderer
self._dimension_renderer = DimensionRenderer()
# Some fixes can't be applied while the DXF document is not fully
# initialized, store this fixes as callable object:
self._post_init_commands: List[Callable] = []
# 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, tagger: Iterable['DXFTag']):
"""
Build a new DXF drawing from a steam of DXF tags.
Args:
tagger: generator or list of DXF tags as DXFTag() objects
"""
def get_header(sections: 'SectionDict') -> 'SectionType':
from .sections.header import HeaderSection
header_entities = sections.get('HEADER', [None])[0] # all tags in the first DXF structure entity
return HeaderSection(header_entities)
self.tracker = Tracker()
self._dimension_renderer = DimensionRenderer() # set DIMENSION rendering engine
self._groups = None # type: GroupManager # read only
self._materials = None # type: MaterialManager # read only
self._mleader_styles = None # type: MLeaderStyleManager # read only
self._mline_styles = None # type: MLineStyleManager # read only
self._acad_compatible = True # will generated DXF file compatible with AutoCAD
self._acad_incompatibility_reason = set() # avoid multiple warnings for same reason
self.filename = None # type: str # read/write
self.entitydb = EntityDB() # read only
sections = load_dxf_structure(tagger) # load complete DXF entity structure
# create section HEADER
header = get_header(sections)
self.dxfversion = header.get('$ACADVER', 'AC1009') # type: str # read only
self.dxffactory = dxffactory(self) # read only, requires self.dxfversion
self.encoding = toencoding(header.get('$DWGCODEPAGE', 'ANSI_1252')) # type: str # read/write
# get handle seed
seed = header.get('$HANDSEED', str(self.entitydb.handles)) # type: str
# setup handles
self.entitydb.handles.reset(seed)
# store all necessary DXF entities in the drawing database
fill_database(self.entitydb, sections, dxfversion=self.dxfversion)
# create sections: TABLES, BLOCKS, ENTITIES, CLASSES, OBJECTS
self.sections = Sections(sections, drawing=self, header=header)
if self.dxfversion > 'AC1009':
self.rootdict = self.objects.rootdict
self.objects.setup_objects_management_tables(self.rootdict) # create missing tables
if self.dxfversion in ('AC1012', 'AC1014'): # releases R13 and R14
repair.upgrade_to_ac1015(self)
# some applications don't setup properly the model and paper space layouts
repair.setup_layouts(self)
self._groups = self.objects.groups()
self._materials = self.objects.materials()
self._mleader_styles = self.objects.mleader_styles()
self._mline_styles = self.objects.mline_styles()
else: # dxfversion <= 'AC1009' do cleanup work, before building layouts
if self.dxfversion < 'AC1009': # legacy DXF version
repair.upgrade_to_ac1009(self) # upgrade to DXF format AC1009 (DXF R12)
repair.cleanup_r12(self)
# ezdxf puts automatically handles into all entities added to the entities database
# write R12 without handles, by setting $HANDLING = 0
self.header['$HANDLING'] = 1 # write handles by default
self.layouts = self.dxffactory.get_layouts()
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
