https://github.com/xigh/go-hist

simple go program to draw histograms
https://github.com/xigh/go-hist

Last synced: 3 months ago
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simple go program to draw histograms

• Host: GitHub
• URL: https://github.com/xigh/go-hist
• Owner: xigh
• License: mit
• Created: 2016-09-09T09:56:39.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-09-09T10:20:16.000Z (over 8 years ago)
• Last Synced: 2025-01-08T06:20:10.202Z (5 months ago)
• Language: Go
• Size: 37.1 KB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-hist

simple go program to draw histograms

Installation

-----------

	go get github.com/xigh/go-hist

Documentation

-----------

	Usage:

	  ./hist [options...] 

	  -endian="little": endianess: [little, big]

	  -gather="max": data gathering: [max, avg]

	  -height=1000: image height

	  -hmargin=10: horizontal margin

	  -length=2147483647: max number of lines

	  -lspace=0: space between lines

	  -lwidth=1: line width

	  -out="out.png": output filename

	  -skip=0: number of entry to skip

	  -type="text": datatype: [i8, u8, i16, u16, i32, u32, f32, f64, text]

	  -vmargin=10: vertical margin

	  -width=0: force image width [overrides line width]

Examples

-----------

Files can be binary files, such as raw audio track:

	./hist --type i16 --length 2000000 --width 3000 --out audio.png audio.raw

	scanning input

	c=2000000 min=-32768.000000 max=32767.000000 avg=0.233254 zero=32768.00, vpl=671.14 [3000x1000]

	generating background

	processing image

	audio.png saved 9192709px

![My image](img/audio.png)

Files can also be floats in text format:

	head data.txt

	1.35

	1.50

	1.09

	0.73

	1.59

	1.43

	1.21

	1.11

	1.11

	0.68

	

	./hist data.txt 

	scanning input

	c=1418 min=0.150000 max=33.670000 avg=4.360035 zero=0.00, vpl=1.00 [1438x1000]

	generating background

	processing image

	out.png saved 179241px

![My image](img/data.png)

Bugs

-----------

Yes.