mirror of https://github.com/tidwall/tile38.git
72 lines
1.5 KiB
Markdown
72 lines
1.5 KiB
Markdown
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# sectr 🍕
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Build a circular sector (pizza piece 😅 ) spanning the angle between two given bearings, a radius and a center point.
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## installation
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```
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go get -u github.com/iwpnd/sectr
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```
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## usage
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<img src=".github/img/sectr_bg.png" alt="Logo" width="500" height="227">
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```go
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package main
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import (
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"fmt"
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"github.com/iwpnd/sectr"
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)
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func main() {
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p := sectr.Point{Lat: 52.25, Lng: 13.37}
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sector := sectr.NewSector(p, 100, 0, 90)
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fmt.Printf("%s", sector.JSON())
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}
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>> {
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"type": "Polygon",
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"coordinates": [
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[
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[13.37,52.25],
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[13.37,52.25089932],
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[13.37012803,52.2508959],
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[13.3702803,52.2508828],
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[13.37040491,52.25086448],
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[13.37055029,52.25083383],
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[13.37068965,52.25079405],
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[13.37080006,52.25075423],
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[13.37092446,52.2506989],
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[13.37103872,52.25063591],
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[13.3711253,52.25057807],
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[13.37121783,52.25050289],
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[13.37128479,52.25043599],
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[13.37135219,52.25035138],
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[13.37140478,52.25026293],
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[13.37143686,52.25018697],
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[13.37146091,52.250094],
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[13.37146896,52.24999999],
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[13.37,52.25]
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]
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]
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}
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```
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## License
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MIT
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## Acknowledgement
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[Chris Veness](https://github.com/chrisveness) for refreshing my university left-overs with this blog [moveable-type](https://www.movable-type.co.uk/scripts/latlong.html)
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## Maintainer
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Benjamin Ramser - [@iwpnd](https://github.com/iwpnd)
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Project Link: [https://github.com/iwpnd/sectr](https://github.com/iwpnd/sectr)
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