Geoos

Our organization spatial-go is officially established! The first open source project Geoos(Using Golang) provides spatial data and geometric algorithms. All comments and suggestions are welcome!

Guides

http://www.spatial-go.com

Structure
Documentation
Maintainer
Contributing
License

Structure

Algorithm is the definition of spatial operation, which is outside exposing.
strategy.go defines the implementation of the spatial computing based algorithm.

Documentation

How to use Geoos: Example: Calculating area via Geoos

package main

import (
  "encoding/json"
  "fmt"
  "github.com/spatial-go/geoos"
  "github.com/spatial-go/geoos/encoding/wkt"
  "github.com/spatial-go/geoos/geojson"
  "github.com/spatial-go/geoos/planar"
)

func main() {
  // First, choose the default algorithm.
  strategy := planar.NormalStrategy()
  // Secondly, manufacturing test data and convert it to geometry
  const polygon = `POLYGON((-1 -1, 1 -1, 1 1, -1 1, -1 -1))`
  geometry, _ := wkt.UnmarshalString(polygon)
  // Last， call the Area () method and get result.
  area, e := strategy.Area(geometry)
  if e != nil {
    fmt.Printf(e.Error())
  }
  fmt.Printf("%f", area)
  // get result 4.0

  rawJSON := []byte(`
  { "type": "FeatureCollection",
  "features": [
    { "type": "Feature",
    "geometry": {"type": "Point", "coordinates": [102.0, 0.5]},
    "properties": {"prop0": "value0"}
    }
  ]
  }`)

  fc := geojson.NewFeatureCollection()
  _ = json.Unmarshal(rawJSON, &fc)
  println("%p", fc)

  // Geometry will be unmarshalled into the correct geo.Geometry type.
  point := fc.Features[0].Geometry.(geoos.Point)
  println("%p", &point)

}

Maintainer

@spatial-go。

Contributing

We will also uphold the concept of "openness, co-creation, and win-win" to contribute in the field of space computing.

Welcome to join us ！please report an issue

Email Address： geoos@changjing.ai

License

Geoos is licensed under the: LGPL-2.1

Piony/geoos