See the attached diff w.r.t. the original version of fractures_shadow.py you sent.
The variable names in the equations/terms have to be the same as given to the FieldVariable instances.
After the proposed changes, get_pressure_load() gets called. However, it returs a scalar instead of values in the provided coordinates, so the setting of values fails - you need to fix that.
Does it help?
r.
On 03/31/2016 05:42 PM, Adolfo Rodriguez wrote:
I am still getting an error related to the press_load function. Probably is related to the way the corresponding field variable is defined, I have the following lines:
field = Field.from_args('fu', nm.float64, 'vector', omega, approx_order=1)
press_load = Function('press_load',get_pressure_load)
functions = Functions([press_load])
press = FieldVariable('pressure','parameter',field,special={'setter': 'press_load'}, primary_var_name='(set-to-None)')
t4 = Term.new('dw_biot(matalpha.alpha, v, p)', integral, omega, matalpha=matalpha, v=v, p=press)
eq_elastic = Equation('Elastic',t1-t3-t3_hmax-t3_hmin-t4)
I get an error at this line:
Traceback (most recent call last):
File "fractures_shadow.py", line 414, in <module>
main()File "fractures_shadow.py", line 312, in main
eqs = Equations([eq_elastic])File "/Users/adantra/anaconda/envs/default/lib/python2.7/site-packages/sfepy/discrete/equations.py", line 82, in __init__
self.collect_conn_info()File "/Users/adantra/anaconda/envs/default/lib/python2.7/site-packages/sfepy/discrete/equations.py", line 187, in collect_conn_info
eq.collect_conn_info(self.conn_info)File "/Users/adantra/anaconda/envs/default/lib/python2.7/site-packages/sfepy/discrete/equations.py", line 801, in collect_conn_info
conn_info[key] = term.get_conn_info()File "/Users/adantra/anaconda/envs/default/lib/python2.7/site-packages/sfepy/terms/terms.py", line 728, in get_conn_info
is_trace = self.arg_traces[pvar.name]KeyError: 'press'
I am pretty sure it is related to the way I am defining the Field Variable but I don't know how to fix it. Any suggestion?
Regards,
Adolfo
On Thu, Mar 31, 2016 at 8:43 AM, Robert Cimrman cimr...@ntc.zcu.cz wrote:
I cannot run the script without the mesh .geo file, but anyway, a few remarks:
the press_load Function instance is not used anywhere, do something like:
functions = Functions([press_load]) ... pb = Problem('elasticity', equations=eqs, nls=nls, ls=ls, functions=functions)
- then the function will be available for equations etc. (Problem.time_update() also can take 'functions' argument.)
line 338: use get_mat instead of get_mat1
Could you send also the geometry file, so that I could run it?
r.
On 03/31/2016 03:15 PM, Adolfo Rodriguez wrote:
Robert,
My script goes attached. The function is specified in line 262, defined in line 41 and used in term t4 in line 302.
Thanks!
On Thursday, March 31, 2016 at 1:46:43 AM UTC-5, Robert Cimrman wrote:
Hi Adolfo,
On 03/31/2016 02:02 AM, Adolfo Rodriguez wrote:
I am trying to use a "parameter" field variable in interactive mode.
What I
am trying to do is very similar to the thermo-elaticity example, but for some reason I cannot make it work in interactive mode.
Note that you can set data of a variable directly in the interactive mode, using Variable.set_data().
In the thermo-elasticity example the parameter field variable is defined
as
follows
def get_temperature_load(ts, coors, region=None): """ Temperature load depends on the
xcoordinate. """ x = coors[:, 0] return (x - x.min())**2 - T0fields = { 'displacement': ('real', 3, 'Omega', 1), 'temperature': ('real', 1, 'Omega', 1),}
variables = { 'u' : ('unknown field', 'displacement', 0), 'v' : ('test field', 'displacement', 'u'), 'T' : ('parameter field', 'temperature', {'setter' : 'get_temperature_load'}),}
equations = { 'balance_of_forces' : """dw_lin_elastic.2.Omega( solid.D, v, u ) - dw_biot.2.Omega(
solid.alpha, v, T ) = 0""",}
In interactive mode this is what I am doing the following:
field_p = Field.from_args('fp', nm.float64, 1, omega,
approx_order=order_p)press_load = Function('press_load',get_pressure_load)
press = FieldVariable('pressure','parameter',field_p,special={'setter' :press_load},
primary_var_name='(set-to-None)')And the corresponding term:
t20 = Term.new('dw_laplace(matalpha.k, q, press)',
integral, omega, matalpha=matalpha, q=q,press=press)
But this does not work.
Could you send the code that does not work, that could be run and tried? There might be a bug because I have never used a setter function in the interactive mode - I use set_data() directly instead - see also FieldVariable.time_update().
r.
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