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[Bruno Chareyre <1381282@xxxxxxxxxxxxxxxxxx>]

Hi Jérôme,

#2 is I think expected for read-only values. You can assign the value instead of the reference with
einit=Vector3(triax.strain)

#3 is most likely unrelated to FlowEngine. The script is using TSC, hence there may be some signs to change in the goals, like in many other example scripts. Please make sure that the sign will be updated in every example script that we have, before commiting any change.
I see also that the unbalanced flux is rather small (<1e-4), it could be just random fluctuations unrelated to your change.
Does the test pass before you change anything?

Cheers

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https://bugs.launchpad.net/bugs/1381282

Title:
  Sign convention in TriaxialStressController not consistent ?

Status in Yet Another Dynamic Engine:
  New

Bug description:
  Hi,

  When used as stress or strain rates, sign convention of "goal1/2/3"
  attributes of TriaxialStressController engine seem to me as not
  consistent.

  Positive values for stress goals correspond indeed to compression, whereas positive values for goal strain rates involve extension.
  Which is itself not consistent with TriaxialStressController.strain variable (in the end, to obtain positive TriaxialStressController.strain, you need to set negative strain rates goal variables).

  Not difficult to fix, but maybe require a common decision. (I vote
  myself for geomechanics convention)

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