Stitch1DMany 3 fold overlap.

[OwenArnold]

This issue was originally TRAC 9655

Tim is going to pass me a real life failure example. In the mean time I tried this out (see below) and it seemed to work OK for my test case:

import numpy as np

def createCosWorkspace(name,start,end):
        dataX = np.arange(start,end,0.1)
        dataY = np.cos(dataX)
        ws = CreateWorkspace(dataX, dataY, OutputWorkspace=name)
        ws = ConvertToHistogram(ws, OutputWorkspace=name)
        return ws

#create some histograms to test the algorithm with
ws1 = createCosWorkspace('left', 0, 12)
ws2 = createCosWorkspace('right', 3, 15)
ws3 = createCosWorkspace('right1', 6, 18)

ws4, sf = Stitch1D(ws1, ws2, Params=[0,0.1,18], StartOverlap=6.0, EndOverlap=12.0)
ws5, sf = Stitch1D(ws4, ws3, Params=[0,0.1,18], StartOverlap=6.0, EndOverlap=12.0)
plotSpectrum(['left', 'right', 'ws4', 'ws5'], 0)

ws6, sf = Stitch1DMany(InputWorkspaces='left,right,right1', Params=[0,0.1,18], StartOverlaps=[6.0, 6.0], EndOverlaps=[12.0,12.0])
plotSpectrum(ws6,0)

Example above has three identical cosine waves overlapping at x = 6 to x = 12.

[OwenArnold]

@NickDraper (2014-06-23T08:01:13):
Moved to Backlog at the code freeze of release 3.2

[raquelalvarezbanos]

I have to ask Tim about this.

[raquelalvarezbanos]

I asked Tim about this, he had a look at the issue and was happy with the results from the script example in the description. We agreed to close this as it doesn't seem to be an issue anymore.