use datetime values for x-axis in line-chart

[eggzotic]

Hi, loving this package for graphs in flutter!

Just 1 thing though: if my x-axis values ('domain') are date-stamps I get an error that they must be type num. Could it be possible to use DateTime values there instead?

[indratrisnar]

Hello, because type is num, so it cannot be DateTime. You can change the value to microsecondSinceEpoh which return int. Then int can be in to num. Pada tanggal Min, 30 Okt 2022 16.47, Richard Shepherd < ***@***.***> menulis:

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Hi, loving this package for graphs in flutter! Just 1 thing though: if my x-axis values ('domain') are date-stamps I get an error that they must be type num. Could it be possible to use DateTime values there instead? — Reply to this email directly, view it on GitHub <#6>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/APTLYD5YAHHYGRUTW43VLQLWFY74PANCNFSM6AAAAAARSGQMRA> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[eggzotic]

Yeah, we can replace the time-data with something like seconds-since-epoch - so it's now a numeric value and the graph works - but this makes the labels on the x-axis kinda meaningless (who knows how to translate that long number into the original datestamp that was in the data?). If the original data has timestamps which are meaningful and readable. I had a look at the source-code and can see where you've used num. It just means that line-charts are really not useful for time-based data, I guess. Thx anyway.

[indratrisnar]

Yes, for datetime value you must use base package, charts_flutter. You can see the example from Google Chart Gallery which this package is discontinued Pada tanggal Sel, 1 Nov 2022 02.59, Richard Shepherd < ***@***.***> menulis:

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Yeah, we can replace the time-data with something like seconds-since-epoch - so it's now a numeric value and the graph works - but this makes the labels on the x-axis kinda meaningless (who knows how to translate that long number into the original datestamp that was in the data?). If the original data has timestamps which are meaningful and readable. I had a look at the source-code and can see where you've used num. It just means that line-charts are really not useful for time-based data, I guess. Thx anyway. — Reply to this email directly, view it on GitHub <#6 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/APTLYD74G2E3T2AEAIXVECLWGAQKZANCNFSM6AAAAAARSGQMRA> . You are receiving this because you commented.Message ID: ***@***.***>