Henry,
Columns (and bars) are unusual compared to other chart types in that the
width of columns is determined by how many can fit in the chart area rather
than any correspondence to the data. With only one data item, the column
width is therefore computed to be much larger.
There is a new option to specify bar: { width: n }, as a generalization of
the bar: { groupWidth: n } option. If you can specify a fixed width in
pixels that works in all cases, that will keep the size manageable.
You'll probably want to also constrain the chartArea.width as well so that
the two work together.
Another alternative is to use discrete domain values (strings rather than
dates), in which case the width of columns will be constrained to the width
of one discrete domain value.
On Tue, Jul 19, 2016 at 10:42 AM, Henry Harrison <[email protected]> wrote:
> Hi Team
>
> I have a combo chart with 104 weeks of sales data. WeekEndDate (date),
> Units (number), Price (number, currency). We always send back 104 weeks of
> data. If a new item is shown with 1 week of data the actual data set is
> 104 WeekEndDate (domain values) with nulls for price and units for non
> represented weeks.
>
> eg.
>
> new Date('2014/07/24'), null, null
> new Date('2014/07/31'), null, null
> ..
> ...
> new Date('2016/07/14'), 605.00, 4.01 <==== the only point with data for
> units and price.
>
> This causes an issue in the way the chart gets displayed. You can see in
> the image that the column for units spans multiple domain values. Hovering
> over the data points shows no values in the tooltips for them but visually
> this is happening. We use the viewWindow to only show the latest 13 weeks
> in this case but the problem persists no matter the viewWindow selected.
>
>
> <https://lh3.googleusercontent.com/-tcLKNx3vP6I/V445v0nw_3I/AAAAAAAAASE/EaKoxg5w7boyz0TR_hxrZVLubPyy1bTTgCLcB/s1600/1%2Bweek%2Bdata%2Berror.png>
>
>
> When there are 2 or more weeks then the chart renders without issue.
>
> This might be limited information to go on but has anyone ever seen
> anything like this? Any help will be appreciated.
>
>
> Regards
> Henry
>
>
>
>
>
>
>
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Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2>
[email protected] <[email protected]> 5CC, Cambridge MA
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