Ticket #327 (closed: fixed)
Fix mantidPlot problem when zooming
Reported by: | Laurent Chapon | Owned by: | Martyn Gigg |
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Priority: | critical | Milestone: | Iteration 14 |
Component: | Keywords: | ||
Cc: | Blocked By: | ||
Blocking: | Tester: |
Description
When plotting 1D graph in MantidPlot and zooming several times, the computer hang sometimes for several minutes. Problem experienced under Linux 64 on two different computers. Probably not specific to MantidPlot but qtiplot in general. This is critical if one wants to deploy Mantid soon on several beamlines.
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This seems to be due to the anti-aliasing option in qtiplot. If turn off, the plotting is extremely fast even for very large data-sets such as HRPD (28000 points). When turn on, the CPU is hammered.