Uses of conditional components in ModelicaTest.MultiBody

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Reported by jmattsson on 25 Oct 2013 09:46 UTC
In ModelicaTest.MultiBody.Joints, both UniversalSpherical and SphericalSpherical2 contains the asserts:

assert(rs1.r_rel[1] < tol2 and rs1.r_rel[2] < tol2 and rs1.r_rel[3] <
  tol2, "Difference in positions between bodies is too much");
assert(rs2.r_rel[1] < tol2 and rs2.r_rel[2] < tol2 and rs2.r_rel[3] <
  tol2, "Difference in positions between bodies is too much");
assert(rs3.r_rel[1] < tol1 and rs3.r_rel[2] < tol1 and rs3.r_rel[3] <
  tol1, "Difference in positions between bodies is too much");

This is an error, since r_rel in rs1 is conditional.

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Migrated-From: https://trac.modelica.org/Modelica/ticket/1333

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Modified by jmattsson on 25 Oct 2013 09:47 UTC

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Modified by jmattsson on 21 Nov 2013 08:34 UTC

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Modified by jmattsson on 21 Nov 2013 10:11 UTC

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Comment by otter on 20 Jun 2014 14:09 UTC
Replying to [ticket:1333 jmattsson]:

In ModelicaTest.MultiBody.Joints, both UniversalSpherical and SphericalSpherical2 contains the asserts:

assert(rs1.r_rel[1] < tol2 and rs1.r_rel[2] < tol2 and rs1.r_rel[3] <
  tol2, "Difference in positions between bodies is too much");
assert(rs2.r_rel[1] < tol2 and rs2.r_rel[2] < tol2 and rs2.r_rel[3] <
  tol2, "Difference in positions between bodies is too much");
assert(rs3.r_rel[1] < tol1 and rs3.r_rel[2] < tol1 and rs3.r_rel[3] <
  tol1, "Difference in positions between bodies is too much");

This is an error, since r_rel in rs1 is conditional.

Changed declaration of rs1, rs2, rs3 to:

Modelica.Mechanics.MultiBody.Sensors.RelativeSensor rs1(
    final get_r_rel=true, ...
    ...

With "final", the vector is no longer conditional.

Fixed in 6d9ae49 (trunk) and in 6173d2c (maintenance).

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Comment by jmattsson on 23 Jun 2014 07:43 UTC
Declaring the parameter final does not make the component stop being conditional. The current rule in the specification is "A component declared with a condition_attribute can only be modified and/or used in connections."

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Comment by otter on 23 Jun 2014 10:00 UTC
Fixed in 4586fd9 (trunk) and in 4ff0c41 (maintenance).