[GH-ISSUE #7] Widget: Line chart #8

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opened 2026-03-03 16:21:38 +03:00 by kerem · 2 comments

kerem commented

2026-03-03 16:21:38 +03:00

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Originally created by @mum4k on GitHub (Apr 14, 2018).
Original GitHub issue: https://github.com/mum4k/termdash/issues/7

Originally assigned to: @mum4k on GitHub.

Implement a line chart widget.

Also look at: https://github.com/cjbassi/termui and the use of: https://github.com/exrook/drawille-go

Originally created by @mum4k on GitHub (Apr 14, 2018). Original GitHub issue: https://github.com/mum4k/termdash/issues/7 Originally assigned to: @mum4k on GitHub. Implement a line chart widget. Similar to: https://github.com/gizak/termui/raw/master/_example/linechart.png And: https://github.com/yaronn/blessed-contrib/raw/master/docs/images/line.gif Also look at: https://github.com/cjbassi/termui and the use of: https://github.com/exrook/drawille-go

kerem

2026-03-03 16:21:38 +03:00

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kerem commented

2026-03-03 16:21:39 +03:00

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@mum4k commented on GitHub (Jun 22, 2018):

What we need:

The draw.Text() function needs to support vertically placed text to allow for labels on axes.
Need a draw.Line() function that draws horizontal and vertical lines and uses correct corner characters where the lines meet.
Need a draw.BrailleLine() function that draws lines using the Braille unicode characters (http://www.alanwood.net/unicode/braille_patterns.html).

Interesting features for the LineChart:

Labels on the axes.
Support both positive and negative values.
Value labels, custom or derived from the values. The labels must be auto positioned based on the available horizontal and vertical space.
Support for multiple values in the same chart (multiple lines).
Support for labels for the displayed lines matching the line color as in (https://github.com/yaronn/blessed-contrib/raw/master/docs/images/line.gif).

@mum4k commented on GitHub (Jun 22, 2018): What we need: 1. The draw.Text() function needs to support vertically placed text to allow for labels on axes. 1. Need a draw.Line() function that draws horizontal and vertical lines and uses correct corner characters where the lines meet. 1. Need a draw.BrailleLine() function that draws lines using the Braille unicode characters (http://www.alanwood.net/unicode/braille_patterns.html). Interesting features for the LineChart: 1. Labels on the axes. 1. Support both positive and negative values. 1. Value labels, custom or derived from the values. The labels must be auto positioned based on the available horizontal and vertical space. 1. Support for multiple values in the same chart (multiple lines). 1. Support for labels for the displayed lines matching the line color as in (https://github.com/yaronn/blessed-contrib/raw/master/docs/images/line.gif).

kerem commented

2026-03-03 16:21:39 +03:00

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@mum4k commented on GitHub (Jun 22, 2018):

Converted to project.

@mum4k commented on GitHub (Jun 22, 2018): Converted to project.

kerem referenced this issue

2026-03-03 16:23:08 +03:00

[PR #41] [MERGED] Implementing a BarChart widget. #174