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 test_add_tags():
db = EntityDB()
db.add_tags(ENTITY)
assert 'FFFF' in db
def db():
db = EntityDB()
db['0'] = ENTITY
return db
def setUp(self):
self.db = EntityDB()
self.db[0] = 'TEST'
def space():
return EntitySpace(EntityDB())
def __init__(self, version):
self.dxfversion = version
self.entitydb = EntityDB()
self.dxffactory = dxffactory(self)
def db():
db = EntityDB()
db[0] = 'TEST'
return db