Function PointFromLatLng

s2/latlng.go:85–90

PointFromLatLng returns a Point for the given LatLng. The maximum error in the result is 1.5 * machineEpsilon64. (This does not include the error of converting degrees, E5, E6, or E7 into radians.)

(ll LatLng)

// The maximum error in the result is 1.5 * machineEpsilon64. (This does not
// include the error of converting degrees, E5, E6, or E7 into radians.)
func PointFromLatLng(ll LatLng) Point {
	phi := ll.Lat.Radians()
	theta := ll.Lng.Radians()
	cosphi := math.Cos(phi)
	return Point{r3.Vector{X: math.Cos(theta) * cosphi, Y: math.Sin(theta) * cosphi, Z: math.Sin(phi)}}
}

// LatLngFromPoint returns an LatLng for a given Point.
func LatLngFromPoint(p Point) LatLng {