Global datasets options thought

Documentation Is:

• Missing or needed
• Confusing
• Not Sure?

Current documentation

Having a look to the current documentation, the chain to set the datasets options is:

• per dataset: dataset.*
• per chart: options.datasets[type].*
• or globally: Chart.defaults.global.datasets[type].*

What’s not clear

There is another default setting for chart type, where global chart settings are stored in Chart.defaults[type].

Does it mean that you can set the datasets options also at global chart level? If yes, with Chart.defaults[type].dataset object? If not, is this missing or not applicable?

In my personal (and not relevant) opinion, the datasets object related to chart type should be defined into global chart options (Chart.defaults[type].dataset) and not into default options (Chart.defaults.global.datasets[type]) because you have already options for chart type.

Am I wrong?

About the chain, element objects are always overlap by datasets ones, therefore my understanding is datasets options are evaluated with the following priority:

• per dataset: dataset.*
• per chart: options.datasets[type].*
• per globally: Chart.defaults.global.datasets[type].*
• per chart: options.elements.*
• per global chart: Chart.defaults[type].elements.*
• per global options: Chart.defaults.global.elements.*

Correct?

[benmccann]

Yes, I agree we should remove the options.elements.*

Regarding Chart.defaults[type].dataset vs Chart.defaults.datasets[type] - One nice thing about the Chart.defaults.datasets[type] version is that the code to resolve the options can easily get the chart-level and dataset-level defaults separately and apply them in the correct order. Though I suppose it should be easy enough either way really

[stockiNail]

@stockiNail FYI this change was reverted by #8090. See #8073 for explanation.

Thank you @kurkle I have seen and not a big deal. I’m gonna change the code with new specification in next weeks, together with the other changes (like font color, tooltip/legend/title). I want to wait for while because I:

1. need to work on documentation for new version
2. am working on Annotation plugin (some PRs could come)