Instrument parameters

[mantid-builder]

Original Reporter: Steve Williams

Anders this is the problem that I talked to you about, the instrument loses its parameters on the second loading. At the moment we are explictly running populateInstrumentParameters() in LoadRaw and the HFIR equivalent LoadSpice2D.

Below is a script from Mathieu where he was runing LoadSpice2D twice in combination with LoadEmptyInstrument and it lost parameters. The script works OK now after they added the populateInstrumentParameters() line but remove it and it doesn't work.

Can you fix this? Let me know.
Cheers,
Steve

Hey guys,

I’m having a problem loading parameters from the parameters.xml file. It works fine when I load a data file normally, but the parameters are lost when LoadEmptyInstrument is called beforehand. It seems that the parameters are only loaded in the workspace created by the first call but not the second… Any idea how we should fix this? Run the code below and you’ll see what I mean.

-M

from MantidFramework import *
from mantidsimple import *
mtd.initialise(False)
import os

TEST_DIR = "../../../Test/Data/SANS2D/"
filepath = os.path.join(TEST_DIR, "BioSANS_test_data.xml")
instrpath = "../../../Test/Instrument/BIOSANS_Definition.xml"

success = True

loader = LoadSpice2D(filepath, "test")
test1 = mtd["test"].getInstrument().getComponentByName("detector1").getPos().getZ()==6.0
test2 = mtd['test'].getInstrument().getStringParameter("detector-name")[0] == 'detector1'

LoadEmptyInstrument(instrpath, 'inst')
loader = LoadSpice2D(filepath, "test")
test3 = mtd["test"].getInstrument().getComponentByName("detector1").getPos().getZ()==6.0
test4 = len(mtd['test'].getInstrument().getStringParameter("detector-name")) == 1
test5 = mtd['inst'].getInstrument().getStringParameter("detector-name")[0] == 'detector1'

print "SUCCESS ? "
print test1
print test2
print test3
print test4
print test5

[mantid-builder]

This issue was originally trac ticket 1553

[mantid-builder]

http://trac.mantidproject.org/mantid/raw-attachment/ticket/1553/test.py
(uploaded by @Anders-Markvardsen on 2010-09-17T14:09:35)

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