def __init__(self, section=None, material=None, orientation=None, behavior=None, **kargs):
### sectiontype is now preferably an attribute of section ###
"""Create a new element section property. Empty by default.
An element section property can hold the following sub-properties:
- section: the section properties of the element. This can be a dict
or a string. The required data in this dict depend on the
sectiontype. Currently the following keys are used by fe_abq.py:
- sectiontype: the type of section: one of following:
'solid': a solid 2D or 3D section,
'circ' : a plain circular section,
'rect' : a plain rectangular section,
'pipe' : a hollow circular section,
'box' : a hollow rectangular section,
'I' : an I-beam,
'general' : anything else (automatically set if not specified).
!! Currently only 'solid' and 'general' are allowed.
- the cross section characteristics :
cross_section, moment_inertia_11, moment_inertia_12,
moment_inertia_22, torsional_rigidity
- for sectiontype 'circ': radius
- material: the element material. This can be a dict or a string.
Currently known keys to fe_abq.py are:
young_modulus, shear_modulus, density, poisson_ratio
- 'orientation' is a list of 3 direction cosines of the first beam
section axis.
- behavior: the behavior of the connector
"""
CDict.__init__(self, kargs)
self.addMaterial(material)
self.addSection(section)
def __init__(self,section=None,material=None,orientation=None,**kargs):
"""Create a new element section property. Empty by default."""
if _matDB is None:
setMaterialDB({})
if _secDB is None:
setSectionDB({})
CDict.__init__(self, kargs)
self.addMaterial(material)
self.addSection(section)
if orientation is not None:
self.orientation = orientation
def Prop(self,kind='',tag=None,set=None,name=None,**kargs):
"""Create a new property, empty by default.
A property can hold almost anything, just like any Dict type.
It has however four predefined keys that should not be used for
anything else than explained hereafter:
- nr: a unique id, that never should be set/changed by the user.
- tag: an identification tag used to group properties
- name: the name to be used for this set. Default is to use an
automatically generated name.
- set: identifies the geometrical elements for which the defined
properties will hold. This can be either:
- a single number,
- a list of numbers,
- the name of an already defined set,
- a list of such names.
Besides these, any other fields may be defined and will be added
without checking.
"""
d = CDict()
# update with kargs first, to make sure tag,set and nr are sane
d.update(dict(**kargs))
prop = getattr(self, kind+'prop')
d.nr = len(prop)
if tag is not None:
d.tag = str(tag)
if name is None and 'setname' in kargs:
# allow for backwards compatibility
pf.utils.warn("warn_properties_setname")
name = setname
if name is None and isinstance(set, str):
### convenience to allow set='name' as alias for name='name'
### to reuse already defined set
name, set = set, name
if name is None:
name = self.autoName(kind, d.nr)
elif not isinstance(name, str):
raise ValueError("Property name should be a string")
d.name = name
if set is not None:
if isinstance(set, int) or isinstance(set, str):
set = [ set ]
d.set = unique(set)
prop.append(d)
return d
def addMaterial(self, material):
"""Create or replace the material properties of the element.
If the argument is a dict, it will be added to the global MaterialDB.
If the argument is a string, this string will be used as a key to
search in the global MaterialDB.
"""
if isinstance(material, str) :
if material in _matDB:
self.material = _matDB[material]
else:
pf.warning("Material '%s' is not in the database" % material)
elif isinstance(material, dict):
_matDB[material['name']] = CDict(material)
self.material = _matDB[material['name']]
elif material is None:
self.material=material
else:
raise ValueError("Expected a string or a dict")
def Prop(self, kind="", tag=None, set=None, setname=None, **kargs):
"""Create a new property, empty by default.
A property can hold almost anything, just like any Dict type.
It has however four predefined keys that should not be used for
anything else than explained hereafter:
- nr: a unique id, that never should be set/changed by the user.
- tag: an identification tag used to group properties
- set: a single number or a list of numbers identifying the geometrical
elements for wich the property is set, or the name of a
previously defined set.
- setname: the name to be used for this set. Default is to use an
automatically generated name. If setname is specified without
a set, this is interpreted as a set= field.
Besides these, any other fields may be defined and will be added
without checking.
"""
d = CDict()
# update with kargs first, to make sure tag,set and nr are sane
d.update(dict(**kargs))
prop = getattr(self, kind + "prop")
d.nr = len(prop)
if tag is not None:
d.tag = str(tag)
if set is not None:
if type(set) is str and setname is None:
### convenience to allow set='name' as alias for setname='name'
### to reuse already defined set
set, setname = setname, set
else:
if type(set) is int:
set = [set]
d.set = unique1d(set)
if setname is None:
setname = self.autoName(kind, d.nr)
if setname is not None:
if type(setname) is not str:
raise ValueError, "setname should be a string"
d.setname = setname
prop.append(d)
return d
def addSection(self, section):
"""Create or replace the section properties of the element.
If 'section' is a dict, it will be added to the global SectionDB.
If 'section' is a string, this string will be used as a key to
search in the global SectionDB.
"""
if isinstance(section, str):
if section in _secDB:
self.section = _secDB[section]
else:
pf.warning("Section '%s' is not in the database" % section)
elif isinstance(section, dict):
# WE COULD ADD AUTOMATIC CALCULATION OF SECTION PROPERTIES
#self.computeSection(section)
#print(section)
_secDB[section['name']] = CDict(section)
self.section = _secDB[section['name']]
elif section is None:
self.section = section
else:
raise ValueError("Expected a string or a dict")
##################################### Test ###########################
if __name__ == '__script__' or __name__ == '__draw__':
if pf.GUI:
chdir(__file__)
print(os.getcwd())
P = PropertyDB()
Stick = P.Prop(color='green', name='Stick', weight=25, comment='This could be anything: a gum, a frog, a usb-stick,...')
print(Stick)
author = P.Prop(tag='author', alias='Alfred E Neuman', address=CDict({'street':'Krijgslaan', 'city':'Gent','country':'Belgium'}))
print(P.getProp(tag='author')[0])
Stick.weight=30
Stick.length=10
print(Stick)
print(author.street)
author.street='Voskenslaan'
print(author.street)
print(author.address.street)
author.address.street = 'Wiemersdreef'
print(author.address.street)
author = P.Prop(tag='author', name='John Doe', address={'city': 'London', 'street': 'Downing Street 10', 'country': 'United Kingdom'})
def test_esetName():
assert esetName(CDict()) == 'Eall'
assert esetName(CDict({'name': 'myname'})) == 'myname'
def test_nsetName():
assert nsetName(CDict()) == 'Nall'
assert nsetName(CDict({'name': 'myname'})) == 'myname'
