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Andreas Guelzow commented on OFFICE-3936:
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My Suggestion for 20.27:
20.27 The chart:interval-major attribute specifies major intervals on an axis 11.8.
If the axis is linear and the value of this attribute is x, major ticks are placed at n*x for n being any (positive, negative or zero) integer.
If the axis is logarithmic and the value of this attribute is x, major ticks are placed at 10^(n*x) for n being any (positive, negative or zero) integer. (Note: if x = log(y), then 10^(n*x) = y^n.)
> logarithmic scale misses information about basis
> ------------------------------------------------
>
> Key: OFFICE-3936
> URL: https://issues.oasis-open.org/browse/OFFICE-3936
> Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
> Issue Type: Improvement
> Components: Chart
> Affects Versions: ODF 1.2
> Reporter: Regina Henschel
> Fix For: ODF 1.3
>
>
> http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part1.html#property-chart_interval-major
> Although the basis 10 is widely used, others a common too, e.g basis 2 for audiogram.
> This proposal adds not only the basis but additional details to the description of chart:interval-major and chart:interval-minor-division.
> Specifications are not only read by developers but by authors of guides and tutorials too. For those the mathematic impact of the attributes values might be not obvious.
> Formulas in the proposal are written StarMath.
> I think, that logarithmic scale should only be allowed for a value-axis, but have not included that in this proposal.
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