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Subject [Bug 120419] New: strange cubic smoothing algorithm
Date Tue, 31 Jul 2012 13:13:35 GMT

          Priority: P3
            Bug ID: 120419
           Summary: strange cubic smoothing algorithm
          Severity: minor
        Issue Type: DEFECT
    Classification: Application
                OS: All
          Hardware: All
            Status: UNCONFIRMED
           Version: AOO 3.4.0
         Component: viewing
           Product: chart

Created attachment 78790
cubic smoothed linechart with inflection point at the wrong place

In a case where the points are 1, 5, 4 the highest point of the smoothed curve
should be 5. Currently its higher.

When creating a cubic smoothed linechart the inflection point of the curve
currently may fall before or after the actual datapoint. This is a problem
because it creates the illusion that there maybe values larger (or smaller)
than the largest (or smallest) datapoint.

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