Hi - I've decided to change the behaviour of automatic axis ranges and
the autoExtend option.
I think the current behaviour is confusing. What I've done is to remove
the autoExtend and autoExtendZero settings. I've added an autoRange option.
If min and/or max for an axis is specified, the axis will use this value
for the minimum and/or maximum, exactly, rather than rounding to the
nearest tick by default.
If an end is not specified, then the behaviour depends on the autoRange
setting:
'tick-next': round up to next major tick, if sensible (default)
'exact': use data range exactly
'+2%': use data range, extending axis to 2% below and/or above this data
range
'+5%', '+15%', '+20%': similar to 2%, but larger
Of course this changes behaviour in a non-compatible way, which I've
tried to avoid doing. If the autoExtend setting is set in a document,
this is converted to setting autoRange to 'exact'. The autoExtendZero
option is now ignored.
Any opinions?
Jeremy
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