var d3 = Object.assign({}, require("d3"), require("d3-tile")); var jsdom = require("jsdom").jsdom; var pi = Math.PI; var tau = 2 * pi; var zoom = { view: 13.5, tile: 16 }; var center = [139.737682,35.686930]; var width = 1200; var height = 480; var mag = Math.pow(2, zoom.tile - zoom.view); var projection = d3.geoMercator() .center(center) .scale(256 * Math.pow(2, zoom.view) / tau) .translate([widt
