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Geometry serialization (#71)

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Serialize geometry to IFC instances directly from a TopoDS_Shape
This commit is contained in:
Thomas Krijnen
2016-06-22 15:03:18 +02:00
committed by GitHub
parent 90ad3a4a93
commit aebb9e324b
18 changed files with 1161 additions and 206 deletions
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src/ifcopenshell-python/ifcopenshell/__init__.py
+11 -106
View File
@@ -17,16 +17,11 @@
# #
###############################################################################
from __future__ import print_function
import os
import sys
import numbers
import platform
import functools
import itertools
from functools import reduce
from . import guid
python_distribution = os.path.join(platform.system().lower(),
platform.architecture()[0],
@@ -37,106 +32,16 @@ sys.path.append(os.path.abspath(os.path.join(
try:
from . import ifcopenshell_wrapper
except:
except Exception as e:
if int(platform.python_version_tuple()[0]) == 2:
import traceback
traceback.print_exc()
print('-' * 64)
raise ImportError("IfcOpenShell not built for '%s'" % python_distribution)
class entity_instance(object):
def __init__(self, e):
super(entity_instance, self).__setattr__('wrapped_data', e)
def __getattr__(self, name):
INVALID, FORWARD, INVERSE = range(3)
attr_cat = self.wrapped_data.get_attribute_category(name)
if attr_cat == FORWARD:
return entity_instance.wrap_value(self.wrapped_data.get_argument(self.wrapped_data.get_argument_index(name)))
elif attr_cat == INVERSE:
return entity_instance.wrap_value(self.wrapped_data.get_inverse(name))
else: raise AttributeError("entity instance of type '%s' has no attribute '%s'"%(self.wrapped_data.is_a(), name))
@staticmethod
def walk(f, g, value):
if isinstance(value, (tuple, list)): return tuple(map(functools.partial(entity_instance.walk, f, g), value))
elif f(value): return g(value)
else: return value
@staticmethod
def wrap_value(v):
wrap = lambda e: entity_instance(e)
is_instance = lambda e: isinstance(e, ifcopenshell_wrapper.entity_instance)
return entity_instance.walk(is_instance, wrap, v)
@staticmethod
def unwrap_value(v):
unwrap = lambda e: e.wrapped_data
is_instance = lambda e: isinstance(e, entity_instance)
return entity_instance.walk(is_instance, unwrap, v)
def attribute_type(self, attr):
attr_idx = attr if isinstance(attr, numbers.Integral) else self.wrapped_data.get_argument_index(attr)
return self.wrapped_data.get_argument_type(attr_idx)
def attribute_name(self, attr_idx):
return self.wrapped_data.get_argument_name(attr_idx)
def __setattr__(self, key, value):
self[self.wrapped_data.get_argument_index(key)] = value
def __getitem__(self, key):
return entity_instance.wrap_value(self.wrapped_data.get_argument(key))
def __setitem__(self, idx, value):
if value is None:
self.wrapped_data.setArgumentAsNull(idx)
else:
attr_type = self.attribute_type(idx).title().replace(' ', '')
attr_type = attr_type.replace('Binary', 'String')
attr_type = attr_type.replace('Enumeration', 'String')
try:
if isinstance(value, unicode): value = value.encode("utf-8")
except: pass
getattr(self.wrapped_data, "setArgumentAs%s" % attr_type)(idx, entity_instance.unwrap_value(value))
return value
def __len__(self): return len(self.wrapped_data)
def __repr__(self): return repr(self.wrapped_data)
def is_a(self, *args): return self.wrapped_data.is_a(*args)
def id(self): return self.wrapped_data.id()
def __eq__(self, other):
if type(self) != type(other): return False
return self.wrapped_data == other.wrapped_data
def __hash__(self):
return hash((self.id(), self.wrapped_data.file_pointer()))
def __dir__(self):
return sorted(set(itertools.chain(
dir(type(self)),
self.wrapped_data.get_attribute_names(),
self.wrapped_data.get_inverse_attribute_names()
)))
class file(object):
def __init__(self, f=None):
self.wrapped_data = f or ifcopenshell_wrapper.file(True)
def create_entity(self,type,*args,**kwargs):
e = entity_instance(ifcopenshell_wrapper.entity_instance(type))
attrs = list(enumerate(args)) + \
[(e.wrapped_data.get_argument_index(name), arg) for name, arg in kwargs.items()]
for idx, arg in attrs: e[idx] = arg
self.wrapped_data.add(e.wrapped_data)
e.wrapped_data.this.disown()
return e
def __getattr__(self, attr):
if attr[0:6] == 'create': return functools.partial(self.create_entity,attr[6:])
else: return getattr(self.wrapped_data, attr)
def __getitem__(self, key):
if isinstance(key, numbers.Integral):
return entity_instance(self.wrapped_data.by_id(key))
elif isinstance(key, str):
return entity_instance(self.wrapped_data.by_guid(key))
def by_id(self, id): return self[id]
def by_guid(self, guid): return self[guid]
def add(self, inst):
inst.wrapped_data.this.disown()
return entity_instance(self.wrapped_data.add(inst.wrapped_data))
def by_type(self, type):
return [entity_instance(e) for e in self.wrapped_data.by_type(type)]
def traverse(self, inst):
return [entity_instance(e) for e in self.wrapped_data.traverse(inst.wrapped_data)]
def remove(self, inst):
return self.wrapped_data.remove(inst.wrapped_data)
def __iter__(self):
return iter(self[id] for id in self.wrapped_data.entity_names())
from . import guid
from .file import file
from .entity_instance import entity_instance
def open(fn=None):
return file(ifcopenshell_wrapper.open(os.path.abspath(fn))) if fn else file()