LineChartRenderer - drawHighlighted:context:indices:

[klenovdima]

Hi,
Thank you for porting the lib.

There is an error in LineChartRenderer class drawHighlighted:context:indices:

I got the error:

this application, or a library it uses, has passed an invalid numeric value (NaN, or not-a-number) to CoreGraphics API and this value is being ignored. Please fix this problem.

because of following lines of code:

let x = high.x // get the x-position
let y = high.y * Double(animator.phaseY)

Seems the lines should be following:

let x = e.x // get the x-position
let y = e.y * Double(animator.phaseY)

Please fix.

Thank you.

[liuxuan30]

you have to first figure out why your high contains NaN.
Please help debug how highlight object is generated, to see if it's your fault or ours; if latter, we will fix it.
feel free to reply with more details and reopen this issue.

[klenovdima]

I think the height contains NaN because I use
lineChartView.highlightValue(x: someIntValue, dataSetIndex: 0, callDelegate: false)
If I use tap to highlight value I don't have such problem.

Please let me know if you need more details.

[klenovdima]

Can't reopen issue.

[liuxuan30]

@klenovdima lineChartView.highlightValue(x: someIntValue, dataSetIndex: 0, callDelegate: false) calling this won't trigger NaN crash, unless your x is NaN, or leads to NaN, which is not allowed in the first place.

You have to debug where it generates NaN