https://github.com/iwpnd/sectr
Build a circular sector polygon feature spanning the angle between two given bearings, a center point and a radius. A pizza piece! 🍕
https://github.com/iwpnd/sectr
geojson geometry geometry-processing geospatial geospatial-processing
Last synced: about 1 month ago
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Build a circular sector polygon feature spanning the angle between two given bearings, a center point and a radius. A pizza piece! 🍕
- Host: GitHub
- URL: https://github.com/iwpnd/sectr
- Owner: iwpnd
- Created: 2021-09-03T06:26:09.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2022-10-01T13:20:26.000Z (over 2 years ago)
- Last Synced: 2025-03-15T15:39:41.758Z (about 1 month ago)
- Topics: geojson, geometry, geometry-processing, geospatial, geospatial-processing
- Language: Go
- Homepage:
- Size: 1.01 MB
- Stars: 12
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: readme.md
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README
# sectr 🍕
Build a circular sector polygon feature (pizza piece 😅 ) spanning the angle between two given bearings, a radius and a center point.
## installation
```
go get -u github.com/iwpnd/sectr
```
## usage
```go
package main
import (
"fmt"
"github.com/iwpnd/sectr"
)
func main() {
p := sectr.Point{Lat: 52.25, Lng: 13.37}
sector := sectr.NewSector(p, 100, 0, 90)
fmt.Printf("%s", sector.JSON())
}
>> {
"type": "Polygon",
"coordinates": [
[
[13.37,52.25],
[13.37,52.25089932],
[13.37012803,52.2508959],
[13.3702803,52.2508828],
[13.37040491,52.25086448],
[13.37055029,52.25083383],
[13.37068965,52.25079405],
[13.37080006,52.25075423],
[13.37092446,52.2506989],
[13.37103872,52.25063591],
[13.3711253,52.25057807],
[13.37121783,52.25050289],
[13.37128479,52.25043599],
[13.37135219,52.25035138],
[13.37140478,52.25026293],
[13.37143686,52.25018697],
[13.37146091,52.250094],
[13.37146896,52.24999999],
[13.37,52.25]
]
]
}
```
## License
MIT
## Acknowledgement
[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)
## Maintainer
Benjamin Ramser - [@iwpnd](https://github.com/iwpnd)
Project Link: [https://github.com/iwpnd/sectr](https://github.com/iwpnd/sectr)