OMEdit incorrect plotting after unit conversion

[crupp@…]

Using the MSL model Modelica.Mechanics.Rotational.Examples.First, OMEdit will incorrectly plot the results of damper.phi_rel after simulation. However, if the result file is loaded into a new session of OMEdit, the plot will be correct.

I believe this issue is related to the units conversion from rad->deg. The conversion factor from rad->deg seems to be -0.936887 as found via the OMEdit CLI, which is obviously incorrect. If the display unit is set to radians then the plot is correct, but when set to degrees the plot is scaled by this factor.

Using OMEdit v1.11.0-dev-188-g9100a82 and OpenModelica v1.11.0-dev-203-g8747e2f.

[crupp@…]

It also seems to only affect Windows, since I can't reproduce it on Linux.

[Martin Sjölund]

What does OMShell say about the following commands on Windows?

>>> getVersion()
"OpenModelica 1.11.0~dev-321-g5aa0206"
>>> convertUnits("deg", "rad")
(true,57.29577951308232,0.0)
>>> convertUnits("rad", "deg")
(true,0.0174532925199433,0.0)

[Adeel Asghar]

>> getVersion()
"OpenModelica v1.11.0-dev-207-g1731292"

>> convertUnits("deg", "rad")
(true,-1.067364264763636,-0.0)

>> convertUnits("rad", "deg")
(true,-0.9368872773920779,0.0)

[Adrian Pop]

Fix in progress via ​https://github.com/OpenModelica/OMCompiler/pull/1331.
Before and after :)

adrpo33@ida-0030 MINGW32 /c/home/adrpo33/dev/OMTesting/
$ time ~/dev/OpenModelica/build/bin/omc convertUnits.mos
(true,-1.067364264763636,-0.0)
(true,-0.9368872773920779,0.0)

adrpo33@ida-0030 MINGW32 /c/home/adrpo33/dev/OMTesting/
$ time ~/dev/OpenModelica/build/bin/omc convertUnits.mos
(true,57.29577951308232,0.0)
(true,0.0174532925199433,0.0)

[Adrian Pop]

Fixed in 5042c6/OMCompiler.