Method yLat

src/lib/geo/transform.js:123–126

(y, worldSize)

  }

  yLat(y, worldSize) {
    const y2 = 180 - (y * 360) / (worldSize || this.worldSize);
    return (360 / Math.PI) * Math.atan(Math.exp((y2 * Math.PI) / 180)) - 90;
  }

  locationPoint(latlng) {
    const p = this.project(latlng);