Charts.js cartesian linear chart bug

[giorgio.primefaces]

Hi all,
I think it is a bug, in the showcase, cartesian line chart is not rendered correctly, top point values are not visible (line is thinner on top as well)
is there any workaroud?

thanks

[Melloware]

I don't understand what you mean. I am looking at the showcase right now and I can tell anything is wrong. Can you be more specific as to what you are claiming is a bug?

https://www.primefaces.org/showcase/ui/ ... line.xhtml

[Melloware]

To me it looks the same as RAW ChartsJS examples.

https://www.chartjs.org/samples/latest/ ... basic.html

https://www.chartjs.org/samples/latest/ ... tyles.html

[giorgio.primefaces]

as you can see in the screenshot above, the cartesian line chart is missing top points and has narrow lines at top
if you refresh the showcase, you'll see those two points raising from bottom and disappearing when maximum value is reached

at least that's what I get with
fedora 29
firefox 65

[Melloware]

Hmm PF is using ChartJS 2.7.2 and looks like these related issues are coming from 2.8 version.

https://github.com/chartjs/Chart.js/issues/4202

https://github.com/chartjs/Chart.js/issues/5210

Look like that issue may be related to your issue?

[giorgio.primefaces]

yes, I think they are related to the same problem, so if there's no workaround we should wait for next chart.js release...

[Melloware]

Yep I will upgrade the JS once they release 2.8.

[giorgio.primefaces]

great,
thanks!

[Melloware]

Created this issue if you wanted to track it: https://github.com/primefaces/primefaces/issues/4506

[Melloware]

Submitted a PR to update to ChartJS 2.8.0 and I verified this bug has been fixed by ChartsJS. https://github.com/primefaces/primefaces/pull/4678