Golang LatLngFromDegreesの例

コード例 #1

ファイル: geometry.go プロジェクト: hailocab/gos2map

func geometryToS2Polygon(geom geojson.GeoJSON) (*s2.Polygon, error) {
	var poly *s2.Polygon
	builder := s2.NewPolygonBuilder(s2.DIRECTED_XOR())
	switch geom := geom.(type) {
	case geojson.Polygon:
		for _, ring := range geom.Coordinates {
			var points []s2.Point
			for _, v := range ring {
				points = append(points, s2.PointFromLatLng(s2.LatLngFromDegrees(v[1], v[0])))
			}
			builder.AddLoop(s2.NewLoopFromPath(points))
		}
		poly = new(s2.Polygon)
		builder.AssemblePolygon(poly, nil)
	}
	return poly, nil
}

コード例 #2

ファイル: geo_test.go プロジェクト: Taik/geo-benchmark

package geo_test

import (
	"fmt"
	"testing"

	"github.com/TomiHiltunen/geohash-golang"
	"github.com/davidreynolds/gos2/s2"
	"github.com/nick11roberts/geozip"
	"github.com/stretchr/testify/assert"
	"github.com/taik/geo-benchmark/basic"
)

var topLeft = s2.LatLngFromDegrees(40.755534, -74.001743)
var bottomRight = s2.LatLngFromDegrees(40.732351, -73.984963)
var center = s2.LatLngFromDegrees(40.743700, -73.991615)

var points = []s2.LatLng{
	topLeft,
	bottomRight,
}

func TestRectFromLatLong(t *testing.T) {
	rect := geo.RectFromLatLong(points)

	assert.True(t, rect.IsValid())
	assert.True(t, rect.Contains(center))
}

func BenchmarkRectContains(b *testing.B) {
	rect := geo.RectFromLatLong(points)