Ticket #9564 (closed: fixed)
Reverse the 2theta-order of POLDI spectra on loading
| Reported by: | Michael Wedel | Owned by: | Michael Wedel |
|---|---|---|---|
| Priority: | major | Milestone: | Release 3.2 |
| Component: | Diffraction | Keywords: | POLDI |
| Cc: | Blocked By: | ||
| Blocking: | Tester: | Nick Draper |
Description
POLDI spectra are stored in descending 2theta-order, while all data analysis assumes ascending order (correlation method, 2D-spectrum calculation, possibly more). At this point it is feasible to change the loading behaviour, because only PoldiAutoCorrelationCore needs to be changed and it will be possible to use it for analysing simulated spectra as well.
Attachments
Change History
comment:2 Changed 6 years ago by Michael Wedel
Testing information:
Find the file systemtests/Data/poldi2013n006904.hdf and make sure Mantid can locate it (or use the full path for the following example).
data_6904 = LoadSINQFile("poldi2013n006904.hdf", Instrument = "POLDI")
Create a Color fill plot of the workspace. Before the change it looks like in 6904_before.png, after the change like 6904_after.png. A good point for orientation is the one spectrum which is very bright due to a mulfunctioning wire.
comment:4 Changed 6 years ago by Michael Wedel
- Status changed from assigned to verify
- Resolution set to fixed
comment:5 Changed 6 years ago by Nick Draper
- Status changed from verify to verifying
- Tester set to Nick Draper
comment:6 Changed 6 years ago by Nick Draper
- Status changed from verifying to closed
Merge remote-tracking branch 'origin/feature/9564_reverse_reading_order_poldi_data'
Full changeset: 4aa765d7cbf07c6219063986d43057c05f310373
Refs #9564. Reversed direction of POLDI data.
Unit tests had to be adjusted because of element ordering. While looking at the file, made some performance improvements.
Changeset: 4eb1ba077c3b3fbc8acdf6c67d4f03663363a254