Further work on error bars

[mantid-builder]

This issue was originally TRAC 4469

Original Reporter: Russell Taylor

This ticket is blocked by :

• TRAC4719

Error bars can now be customised, but for Mantid curves this can only be done from Python, not from the plot dialog. It seems a pity (in more ways than just this) that apparently no regard was made to how QtiPlot does error bars when the ability was added to show Mantid error bars, because if it had been done in a similar way (having a separate curve for the error bars) customisation options would have appeared in the dialog 'for free'.

The following should be looked at:

• Modifying Mantid error bar characteristics from the plot dialog.
• Showing X errors.
• The ability to add custom errors (e.g. % or from a table) to Mantid Curves (at the moment only the workspace errors can be attached to the curve unless it's first exported to a table).
• Pulling in improvements made in today's QtiPlot to the way error bars are drawn (see the QwtErrorPlotCurve class, now called ErrorBarsCurve in QtiPlot).

[mantid-builder]

@NickDraper (2012-04-30T14:12:53):
Moved at end of release 2.1

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@NickDraper (2012-08-10T12:43:37):
Moved at the end of release 2.2

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@NickDraper (2012-10-28T11:38:49):
Moved to milestone 2.4

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@NickDraper (2013-01-28T09:23:01):
Moved at the code freeze for release 2.4

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Russell Taylor (2013-04-16T20:55:32):
Move the tickets I'm definitely not going to do this iteration so that I can better see the ones that I might.

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@NickDraper (2013-07-26T13:54:58):
Moved to backlog at the code freeze for R2.6

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@NickDraper (2014-02-14T11:04:56):
Bulk move to assigned at the introduction of the triage step

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Russell Taylor (2014-06-16T19:08:52):
Orphaning tickets that I won't have time to look at.

[NickDraper]

This is actually a valuable ticket that was echoed to some extent in the last SSC. Assigned to PM so it doesn't get lost.

[NickDraper]

Will be superceeded in M4, closing