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calendarheatmap

★ 410 Open GitHub ↗

📅 Calendar heatmap inspired by GitHub contribution activity

// repository documentation

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[![Go Reference](https://pkg.go.dev/badge/github.com/nikolaydubina/calendarheatmap/charts.svg)](https://pkg.go.dev/github.com/nikolaydubina/calendarheatmap/charts)
[![codecov](https://codecov.io/gh/nikolaydubina/calendarheatmap/branch/master/graph/badge.svg)](https://codecov.io/gh/nikolaydubina/calendarheatmap)
[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/avelino/awesome-go#science-and-data-analysis)
[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/nikolaydubina/calendarheatmap/badge)](https://securityscorecards.dev/viewer/?uri=github.com/nikolaydubina/calendarheatmap)

Self-contained, plain Go implementation of calendar heatmap inspired by GitHub contribution activity available via CLI and [calendarheatmap.io](https://calendarheatmap.io)

```
$ go install github.com/nikolaydubina/calendarheatmap@latest 
$ echo '{
    "2020-05-16": 8,
    "2020-05-17": 13,
    "2020-05-18": 5,
    "2020-05-19": 8,
    "2020-05-20": 5
}' | calendarheatmap > chart.png
```

Basic

![basic](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/basic.png)

Colorscales

![col1](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/colorscale-1.png)
![col2](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/colorscale-2.png)
![col2](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/colorscale-3.png)

UTF-8
![col1](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/korean.png)

SVG

![svg](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/korean.svg)

Without month separator
![nosep](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/noseparator.png)

Without labels
![nolab](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/nolabels.png)

Without labels, without separator
![nosep_nolab](https://raw.githubusercontent.com/nikolaydubina/calendarheatmap/master/docs/noseparator_nolabels.png)

calendarheatmap

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