C＃DateTime：缩放到时间 [英] C# DateTime: Scaling Double to Time

问题描述

我有一个从有限范围返回步骤大小的功能。所以，如果范围是{} 1,2,3,4,5,6..10，我想5个步骤，它会返回2的步长这并不复杂。

I have a function that returns a step size from a bounded range. So if the range is {1,2,3,4,5,6..10} and I want 5 steps it would return a step size of 2. This isn't that complicated.

如果我有{.1 .2，.3 .4 .... 1}，我想7步的步长为0.14285。那么我想0.14285转换成最接近的相关时间测量。在这种情况下，0.14285表示小数一天。例如，整数1将是一个整天和0.25将是6小时。

If I have {.1,.2,.3,.4....1} and I want 7 steps the step size is 0.14285. I then want to convert 0.14285 to the nearest relevant time measurement. In this case .14285 represents a fractional day. For example, the integer 1 would represent a whole day and .25 would represent 6 hours.

.14285 = 12,342.24 seconds = 205.704 Minutes = 3.42 Hours ~= 4 hours.

然后我想捕捉0.14285（4 * 60 * 60 = 14,400 /（24 * 60 * 60））= 0.16666这是4个小时的十进制等效值。

I then want to snap .14285 to (4*60*60 = 14,400 / (24*60*60)) = .16666 which is the decimal equivalent of 4 hours.

我或多或少都有数学想通了，但我想知道如果有一个？这样使用的DateTime东西更简单的方法

I more or less have the math figured out, but I'm wondering if there is an easier way of doing this using DateTime stuff?

推荐答案

我不建议你让你的问题更清晰;我花了一段时间才能意识到你指到的天的

I do recommend that you make your question clearer; it took me a while to realize that the 0.14285 you were referring to represented a fraction of a day.

您可以使用这样的：

 // {03:25:42.24}
TimeSpan unSnapped = TimeSpan.FromDays(0.14285);

 // {04:00:00} : Round up the hours and construct a TimeSpan from it
TimeSpan snapped = TimeSpan.FromHours(Math.Ceiling(unSnapped.TotalHours));

// 0.166666666
double snappedFractionOfADay = snapped.TotalDays;

您可以检查上的 TotalXXX 属性时间跨度让你提，如果需要其他信息。

You can inspect the TotalXXX properties on the time-spans to get the other information you mention, if needed.

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