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#!/usr/bin/env python
import openturns as ot
import openturns.testing
import persalys
myStudy = persalys.Study("myStudy")
# Model
R = persalys.Input(
"R", 0.0, ot.LogNormalMuSigma(300.0, 30.0).getDistribution(), "Yield strength"
)
F = persalys.Input("F", 0.0, ot.Normal(75000.0, 5000.0), "Traction load")
G = persalys.Output("G", "deviation")
code = "from math import pi\n\ndef _exec(R, F):\n G = R-F/(pi*100.0)\n return G\n"
model = persalys.PythonPhysicalModel("myPhysicalModel", [R, F], [G], code)
myStudy.add(model)
f = model.getFunction()
print(f([300.0, 75000.0]))
# several outputs
model.setCode(
"from math import pi\n\ndef _exec(R, F):\n G = 6*F\n H = 42.0\n return G, H\n"
)
f = model.getFunction()
print(f([300.0, 75000.0]))
# test operator() (sample)
model.setCode(
"from math import pi\n\ndef _exec(R, F):\n G = 2*R-F/(pi*100.0)\n return G\n"
)
model.setParallel(True)
f = model.getFunction()
print(f([[300.0, 75000.0]]))
print(f([[300.0, 75000.0], [400.0, 74000.0]]))
# test operator() (sample)
code = "from math import pi\nimport time\ndef _exec(R, F):\n"
code += " if R == 300.:\n time.sleep(0.5)\n G = 2*R-F/(pi*100.0)\n return G\n"
model.setCode(code)
plan_0 = persalys.FixedDesignOfExperiment(
"plan_0", model, [[300.0, 75000.0], [400.0, 74000.0]]
)
plan_0.setBlockSize(2)
myStudy.add(plan_0)
plan_0.run()
print("Sample :\n %s" % plan_0.getResult().getDesignOfExperiment().getSample())
# model with an error
model.setCode(
"from math import pi\n\ndef _exec(R, F):\n G = 2*R-F/(pi*100.0)/0.\n return G\n"
)
model.setParallel(True)
f = model.getFunction()
try:
print(f([[300.0, 75000.0]]))
except Exception as e:
print(
"ZeroDivisionError occured: %s"
% ("ZeroDivisionError: float division by zero" in str(e))
)
print("Error on the line 4 : %s" % ("line 4" in str(e)))
# script
script = myStudy.getPythonScript()
print(script)
exec(script)
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