Segfault when trying to display an instrument without sample set

[Arturs Bekasovs]

Save the attached file, which is a very minimal custom IDF, and run the following script, setting the right path:

idf = ".../IDF_for_locations_test.xml" # Set to the actual path
ws = CreateWorkspace([1,2,3], [1,2,3])
LoadInstrument(ws, idf)
getInstrumentView("ws")

Adding following lines to the IDF fixes the problem:

  <component type="sample">
    <location/>
  </component>
  <type name="sample" is="samplePos"/>

I don't think it's a major problem, since all the real instruments will have samples set. Seems to be a simple missing null-check somewhere in the InstrumentView code.

[Stuart Campbell]

This ticket has been transferred to github issue ​10049