如何在每个元素的x轴上显示标签? [英] How to show labels on x axis for each element?

问题描述

我有包含文件名和数字的元组序列.

I have sequence of tuples containing filename and number.

我想绘制在X轴上有文件名的柱形图.

I want to draw column graph where on X axis I have filenames.

我的问题是，现在X轴下仅显示3个标签(文件名).这可能是因为屏幕上无法容纳更多内容.还是X轴间隔错误?

My problem is that now only 3 labels (filenames) are shown under X axis. That's probably because more can't fit on screen. Or maybe X axis interval is wrong?

如何使图表显示所有文件名?也许有一种方法可以将这些标签逆时针旋转90度，以便为更多标签腾出空间?

How to make chart display all filenames? Maybe there is a way to rotate those labels 90 degrees counterclockwise to make room for more labels?

推荐答案

您应该可以使用:

|> Chart.WithXAxis (LabelStyle = ChartTypes.LabelStyle(Angle = -45, Interval = 1.0))

-45度的角度提供了一个很好的斜率，而1.0的间隔意味着没有任何东西被排除.

The angle of -45 gives a nice slope and the interval of 1.0 means nothing is excluded.

这是我在FSI中提出的概念证明:

Here's a proof of concept I knocked up in FSI:

#load "C:/Somewhere/packages/FSharp.Charting.0.90.7/FSharp.Charting.fsx"
open FSharp.Charting;;

let data = 
    [
        ("Foo.jpg", 12)
        ("Bar.jpg", 22)
        ("Another.doc", 8)
        ("OneMore.txt", 15)
        ("LastOne.txt", 17)
        ("ReallyLastOne.txt", 6)
        ("Foo.jpg", 12)
        ("Bar.jpg", 22)
        ("Another.doc", 8)
        ("OneMore.txt", 15)
        ("LastOne.txt", 17)
        ("ReallyLastOne.txt", 6)
    ];;

    data
    |> Chart.Line
    |> Chart.WithXAxis (LabelStyle = ChartTypes.LabelStyle(Angle = -45, Interval = 1.0))
    ;;

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