This fork is no longer maintained

See https://github.com/NathanBaulch/asciichart-sharp for a maintained fork.

asciichart-sharp

C# port of asciichart (https://github.com/kroitor/asciichart)

Usage

var series = new double[100];
for (var i = 0; i < series.Length; i++)
{
    series[i] = 15 * Math.Sin(i * ((Math.PI * 4) / series.Length));
}
                
Console.OutputEncoding = Encoding.UTF8;
Console.WriteLine(AsciiChart.Plot(series));

 14.97 ┤          ╭───╮                                             ╭───╮
 13.97 ┤        ╭─╯   ╰─╮                                         ╭─╯   ╰─╮
 12.97 ┤       ╭╯       ╰╮                                       ╭╯       ╰╮
 11.98 ┤      ╭╯         ╰╮                                     ╭╯         ╰╮
 10.98 ┤      │           │                                     │           │
  9.98 ┤     ╭╯           ╰╮                                   ╭╯           ╰╮
  8.98 ┤    ╭╯             ╰╮                                 ╭╯             ╰╮
  7.98 ┤    │               │                                 │               │
  6.99 ┤   ╭╯               ╰╮                               ╭╯               ╰╮
  5.99 ┤  ╭╯                 ╰╮                             ╭╯                 ╰╮
  4.99 ┤  │                   │                             │                   │
  3.99 ┤ ╭╯                   ╰╮                           ╭╯                   ╰╮
  2.99 ┤ │                     │                           │                     │
  2.00 ┤╭╯                     ╰╮                         ╭╯                     ╰╮
  1.00 ┤│                       │                         │                       │
  0.00 ┼╯                       ╰╮                       ╭╯                       ╰╮
 -1.00 ┤                         │                       │                         │
 -2.00 ┤                         ╰╮                     ╭╯                         ╰╮                     ╭
 -2.99 ┤                          │                     │                           │                     │
 -3.99 ┤                          ╰╮                   ╭╯                           ╰╮                   ╭╯
 -4.99 ┤                           │                   │                             │                   │
 -5.99 ┤                           ╰╮                 ╭╯                             ╰╮                 ╭╯
 -6.99 ┤                            ╰╮               ╭╯                               ╰╮               ╭╯
 -7.98 ┤                             │               │                                 │               │
 -8.98 ┤                             ╰╮             ╭╯                                 ╰╮             ╭╯
 -9.98 ┤                              ╰╮           ╭╯                                   ╰╮           ╭╯
-10.98 ┤                               │           │                                     │           │
-11.98 ┤                               ╰╮         ╭╯                                     ╰╮         ╭╯
-12.97 ┤                                ╰╮       ╭╯                                       ╰╮       ╭╯
-13.97 ┤                                 ╰─╮   ╭─╯                                         ╰─╮   ╭─╯
-14.97 ┤                                   ╰───╯                                             ╰───╯

Options Usage

// same series as above
Console.WriteLine(AsciiChart.Plot(series, new Options
{
    AxisLabelLeftMargin = 3,
    AxisLabelRightMargin = 0,
    Height = 4,
    Fill = '·',
    AxisLabelFormat = "0,000.000",
}));

    0,014.970┤······╭───────────╮·····································╭───────────╮·······························
    0,007.485┤··╭───╯···········╰───╮·····························╭───╯···········╰───╮···························
    0,000.000┼──╯···················╰────╮···················╭────╯···················╰────╮···················╭─·
   -0,007.485┤···························╰───╮···········╭───╯·····························╰───╮···········╭───╯··
   -0,014.970┤·······························╰───────────╯·····································╰───────────╯······

Auto Label Width

Automatically sizes to fit the largest visible label.

var series2 = new double[100];
for (var i = 0; i < series.Length; i++)
{
    series2[i] = (200000 * Math.Cos(i * ((Math.PI * 8) / series.Length))) + 1000000;
}

Console.WriteLine(AsciiChart.Plot(series2, new Options{Height = 10}));

 1200000.00 ┼─╮                     ╭──╮                     ╭──╮                     ╭──╮                     ╭
 1160157.71 ┤ ╰─╮                 ╭─╯  ╰─╮                 ╭─╯  ╰─╮                 ╭─╯  ╰─╮                 ╭─╯
 1120315.41 ┤   ╰╮               ╭╯      ╰╮               ╭╯      ╰╮               ╭╯      ╰╮               ╭╯
 1080473.12 ┤    ╰╮             ╭╯        ╰╮             ╭╯        ╰╮             ╭╯        ╰╮             ╭╯
 1040630.82 ┤     │             │          │             │          │             │          │             │
 1000788.53 ┤     ╰╮           ╭╯          ╰╮           ╭╯          ╰╮           ╭╯          ╰╮           ╭╯
  960946.24 ┤      ╰╮         ╭╯            ╰╮         ╭╯            ╰╮         ╭╯            ╰╮         ╭╯
  921103.94 ┤       ╰╮       ╭╯              ╰╮       ╭╯              ╰╮       ╭╯              ╰╮       ╭╯
  881261.65 ┤        ╰╮     ╭╯                ╰╮     ╭╯                ╰╮     ╭╯                ╰╮     ╭╯
  841419.35 ┤         ╰╮   ╭╯                  ╰╮   ╭╯                  ╰╮   ╭╯                  ╰╮   ╭╯
  801577.06 ┤          ╰───╯                    ╰───╯                    ╰───╯                    ╰───╯