为 Google Charts Api 编写自定义格式化程序
我想创建一个图表来显示我 10k 跑步的时间。一切都按预期工作，我遇到的唯一问题是，我想格式化时间的显示方式。
目前时间显示为代表秒的数字。例如，30 分钟的跑步可以减少到 10800 秒。谷歌提供的格式化程序确实涵盖了很多东西，但我对他们提供的内容并不是很满意。
http://code.google.com/apis/chart/interactive /docs/reference.html#formatters
遗憾的是没有关于如何实现您自己的格式化程序的信息。我是否有机会扩展格式化程序或者是否有需要实现的接口？
我要做的第一件事是将数字 10800 解析为一个不错的时间，例如 30:00.00（30 分钟，0 秒，0 毫秒）。 也许这已经可以通过模式格式化程序实现，但我不知道如何实现，因为涉及计算并且不知道如何在模式格式化程序中实现这一点。
感谢您的帮助。 约翰尼
I want to create a chart to display my time over a 10k run. Everything is working as it should, the only problem that I have is, that I want to format how the time is displayed.
Currently the time is displayed as a number which represents the seconds. For example a 30 minute run comes down to 10800 seconds. The formatters provided by google do cover a lot of stuff, but I'm not really happy with what they provide.
http://code.google.com/apis/chart/interactive/docs/reference.html#formatters
Sadly there is no information on how to implement your own formatter. Is there any chance I can extend a formatter or is there an interface that needs to be implemented?
The first thing I would do would do parse the number 10800 to a nice time like 30:00.00 (30 minutes, 0 seconds, 0 millisecons).
Maybe this is already possible with a patternformatter, but i don't see how, as there is calculating involved and don't know how to implement this in the patternformatter.
Thank you for your help.
Johnny
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使用具有自定义模式的 DateFormat。例如：
需要注意的是，这会显示 JS Date 对象的时间，因此您需要提供 JS 日期形式的运行时间。因此，要么指定对数据进行采样的实际时间。或者，如果您只想显示自运行开始以来的相对时间，您可以执行以下操作：
... 其中sampleTime 是每个采样点的时间（以毫秒为单位）。 （这只是将时间设置为自 2000 年 1 月 1 日午夜以来的毫秒数，因此小时/分钟/秒将反映您的运行时间）
Use a DateFormat with a custom pattern. E.g.:
The caveat is that this displays the time-of-day of a JS Date object, so you'll need to provide your run times as JS dates. So either specify the actual time-of-day at which your data was sampled. Or, if you want to just show the relative time since the start of your run, you could do something like this:
... where sampleTime is the time of each sample point in milliseconds. (This just sets the time as milliseconds since midnight 01/01/2000, so the hour/minute/second will reflect your run time)
遇到了类似的问题，地理图表有总秒数，需要将其显示为 hh:mm:ss。无法做到这一点，但我能够将其转换为 mm:ss，这是可以接受的
，我将总秒数转换为小数为 mm.ss。例如，200 秒是 3:20，所以我将其标记为 3.20 并将该值传递给图表，然后在 geochart 上我使用数字格式化程序来使用：作为小数格式化程序
默认小数位数为 2，因此它显示为 3 ：20。
Came across a similar issue with a geochart where had total seconds and needed to show it as hh:mm:ss. Couldn't manage that but I was able to get it to mm:ss which was acceptable
I converted the total seconds to a decimal as mm.ss. e.g. 200 seconds is 3:20 so I labelled this as 3.20 and passed the value to the chart as that and then on the geochart I used a number formatter to use : as the decimal formatter
The default decimal places is 2 so it appeared as 3:20.