ValueFormatter getFormattedValue needs also function with Double

[Paget96]

Here is whole issue which exists since long ago
PhilJay/MPAndroidChart#2891

Also would be nice if we can map formatter with Entry data where we can pass multiple info regarding the Entry.

This is needed when we want to add Unix timestamp to X axis. if we do add it now and convert to float, precision is lost, and line is going everywhere but not where it supposed to go.

[hannesa2]

Isn't it enough to simple convert double to a float ?
https://github.com/AppDevNext/AndroidChart/pull/223/files

[hannesa2]

I made at least a test to demonstrate the issue #630

[hannesa2]

we want to add Unix timestamp to X axis.

I guess for Unix timestamp a Long would be the best solution, am I right ?

[hannesa2]

Does this #631 solve your issue ?
Without thinking much about it, I simply used an overlapping method with Long.

[hannesa2]

I made #633 to have unix timestamp linechart. Please demonstrate there your

and line is going everywhere but not where it supposed to go. Then I can search for an easy solution.

Btw, #631 is the wrong solution (as far as I understand it currently)

[Paget96]

I will test these. Long for timestamp is ok, problem is chart precision, but I will test and report back.
Thank you!

[hannesa2]

@Paget96
I currently add a time chart #720 one value per second and values are looking not that bad. Even millis are somehow precise.
The SimpleTimeFormat is "HH:mm:ss.sss" of a unix timestamp

It looks linear when I add it in a loop (for each second one value).
Ok, you can ask why i t needs 13 ms by adding 14 values. One value = 1 ms.

I currently don't loose precision.
Please tell me where is the issue ? (Otherwise I close this)

[hannesa2]

But I see when you calculate later with values, eg. time difference to next Entry it's somehow non-precise.
Please see "duration"

[hannesa2]

#752 solves it now. Please reopen, if it still exist.
I'll create a new version with it