Combo bar/line chart - how to align line points with the left side of the bar?

[cintiapinto]

Discussed in #9788

^{Originally posted by cintiapinto October 25, 2021}
I have a combo bar/line chart where the line dataset starts straight after the bar dataset on the x-axis.

i.e.

• from 0 to 2020 -> bar chart
• 2020 to 2050 -> line chart

I have put in null values in my data array for the line chart, so it starts at the right x position. However, it seems like on bar/line combo charts, a point in the line is always centred in the middle of the bar category.

This can also be seen in the samples:
https://www.chartjs.org/docs/latest/samples/other-charts/combo-bar-line.html

This is causing a "gap" in between my two datasets because the point is positioned in the middle:

Is there a way to maybe sex an offset on the line chart dataset or an option to align the points to the left of the bar category?

I need the behaviour of the normal line chart in the combo bar/line chart, where the point is at the start of the category
e.g.

(screenshot from docs https://www.chartjs.org/docs/latest/samples/line/line.html)

Thank you!

[LeeLenaleee]

Should remain a discussion where it came from