Horace Replicate Command

[OwenArnold]

This issue was originally TRAC 11856

This ticket is blocks : TRAC11231

Do we really need this? http://horace.isis.rl.ac.uk/Reshaping_etc#replicate

This can be achieved by hand, at the moment, but maybe that's too much work? A python algorithm might be a good start for this.

1 man-week effort

Planned procedure for implementing this

1. Locate Data in Shape
   1. Pre-checks. size's extents, names, etc. All the n+1 rules for Shape over Data should be OK.
   2. Transpose Data into Shapes n-1 dimension set, in the exact order. Use TransposeMD.
   3. In the same step as the above, collapse down any integrated dimensions in the Data. The reshaped-data should be truly m-1 dimensions.
2. Clone the Shape workspace to make the Output Workspace
3. Let p, q, r, s be the size of the dimensions in the output. Since we are replicating over the last dimension, we need to shift by (pxqxr) in each our our Output Workspace arrays.
4. 1. So, using the scheme above, we can do a std::copy(transposed_data.getSignalArray(), output_workspace.getSignalArray() + i_(pxqxr), output_workspace.getSignalArray() + (i+1)_(pxqxr) ),
   2. Or we could do he equivalent with the MDHistoWorkspace iterator. Create x iterators where x is the number of bins in the last dimension and jump each one forward by (pxqxr).
   3. Or we could create iterators to loop over the Data Workspace, and for each iterator we access i x (pxqxr) in the output workspace and write the same value to each slice point.

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   Keywords: vates-cli

[OwenArnold]

Re-requested by Russell Ewings. on the 25th August. Important for background correction.