Hi all,
while working on "logarithmic axis scale" [1] in the ODF TC we noticed,
that positioning of grid is generally different between LO and Gnumeric.
Gnumeric has a position independent of the minimum of the axis. LO
starts grid always at the minimum of the axis. Example: currently for a
major-interval=2 and min=-2.5 LO gives grid position -2.5, -0.5, 1.5 and
for min=-1.5 LO give grid position -1.5, 0.5, 2.5.
It would be nice to determine the grid position for to get -2, 0, 2
independent of minimum value.
I can imagine of a new style attribute chart:grid-anchor where you can
set a value (0 for linear scale e.g) or "start" (to get the current
behavior). But as this would require additions in the code, I will not
suggest it to the TC without your OK.
Currently the spec has no rule for it, so both LO and Gnumeric are
"right". But for interoperability it is a bad situation and the spec
should describe the grid position.
[1] https://issues.oasis-open.org/browse/OFFICE-3936
Kind regards
Regina
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