Need ability to save and load peaks

[Karl Palmen]

There is a need for peaks to be saved and loaded. There is some peak saving/loading capability with IsawPeaks, but this is only suitable for certain types of instrument. We need a more flexible way of saving peaks. This could be done as a Nexus file.

This ticket addresses issues unresolved in tickets #4104 and #4105 .

[Karl Palmen]

Peaks created by the FindPeaks algorithm seem to be saved correctly as a table workspace Nexus file. It seems to be peaks created by FindPeaksMD that are not saved as Nexus file. Such peaks have no 'show data' method available in Mantidplot instead one can view the logs.

[Karl Palmen]

Peaks created by FindPeaks can be saved by either running the SaveNexus algorithm on the peaks workspace, which is a table workspace or by saving the project. The peaks cannot be saved via the right-click menu like with other types of workspace.

[Karl Palmen]

I've found out that FindPeaksMD saves peaks into a peaks workspace documented at http://www.mantidproject.org/PeaksWorkspace .

The table of peaks can be displayed by double-cliking on this workspace rather than selecting 'show data' in right click menu.

The webpage also says that if you show the instument, one can see where the peaks are in the instrument by dragging the peak workspace into the imstrument picture. I haven't yet been able to do this and may need a better example for this.

[Karl Palmen]

refs #4137 provided for help with coding

Changeset: 47f0292fcd21d70ac447d36c3af03b35de359e1a

[Karl Palmen]

The changeset 47f0292fcd21d70ac447d36c3af03b35de359e1a is the creation of a branch save_peaks_nexus to assist me.

[Janik Zikovsky]

Refs #4137: Start of saving peaks nexus

Changeset: b336bbb4d5cc87fc25f048c763cdc031fa92787e

[Karl Palmen]

Partially fix new code and put comment for part not yet fixed re #4137

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: 3a293c44cffe6a45228769c8ffee0178fedaff7d

[Karl Palmen]

Replaced references to protected members with function calls. Re #4137

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: 7b9b114ed3e7ab0d29910506e2958881675dbb15

[Karl Palmen]

Now it saves nine columns into Nexus re #4137

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: fe5eb775709d1410b66538499a2ed8d5ccc305bd

[Karl Palmen]

Modified declaration of PeaksWorkspace.h declaration of SaveNexus

For re #4137. This is needed to make it acceptable to Jenkins builders.

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: 566a9d129086fcdf0cb18a132ad17bdd5b9580aa

[Karl Palmen]

Corrected a declaration in LoadNexus.h file for re #4137

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: 0c162bf241c97520eedbe42a25681bf7c01ab81f

[Karl Palmen]

Elimination of compiler warnings re #4137

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: d9a322877d0ce16eb7e3272f91bfd93f21814492

[Karl Palmen]

Unit test for re #4137

PeaksWorkspaceTest.h test_saveNexus

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: b2472286b200c37e9e1da128a8c34c3620b84b91

[Karl Palmen]

Unit test for re #4137

PeaksWorkspaceTest.h test_saveNexus

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: b2472286b200c37e9e1da128a8c34c3620b84b91

[Karl Palmen]

Completed work on saving/loading peaks to Nexus re #4137

Signed-off-by: Karl Palmen <karl.palmen@…>

Changeset: 63fa1482dc5be81122fbd4448319c04052acde77

[Owen Arnold]

Can create, save and load a peaks workspace. Realoaded workspace is the same as the original peaks workspace.

[Stuart Campbell]

This ticket has been transferred to github issue ​4984