function geoAlbersUsaPr() { var cache, cacheStream, lower48 = d3.geoAlbers(), lower48Point, alaska = d3.geoConicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, hawaii = d3.geoConicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, puertoRico = d3.geoConicEqualArea().rotate([66, 0]).center([0, 18]).parallels([8, 18]), puertoRicoPoint, guamMariana = d3.geoConicEqualArea().rotate([-145, 0]).center([0, 16]).parallels([10, 20]), guamMarianaPoint, americanSamoa = d3.geoConicEqualArea().rotate([170, 0]).center([0, -14]).parallels([-14, 0]), americanSamoaPoint, point, pointStream = {point: function(x, y) { point = [x, y]; }}; function albersUsa(coordinates) { var x = coordinates[0], y = coordinates[1]; return point = null, (lower48Point.point(x, y), point) || (alaskaPoint.point(x, y), point) || (hawaiiPoint.point(x, y), point) || (puertoRicoPoint.point(x, y), point) || (guamMarianaPoint.point(x, y), point) || (americanSamoaPoint.point(x, y), point); } albersUsa.invert = function(coordinates) { var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k; return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii : y >= 0.204 && y < 0.234 && x >= 0.300 && x < 0.380 ? puertoRico : y >= 0.050 && y < 0.204 && x >= 0.340 && x < 0.380 ? guamMariana : y >= 0.160 && y < 0.204 && x >= 0.280 && x < 0.340 ? americanSamoa : lower48).invert(coordinates); }; albersUsa.stream = function(stream) { return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream), puertoRico.stream(stream), guamMariana.stream(stream),americanSamoa.stream(stream)]); }; albersUsa.precision = function(_) { if (!arguments.length) return lower48.precision(); lower48.precision(_), alaska.precision(_), hawaii.precision(_), puertoRico.precision(_), guamMariana.precision(_), americanSamoa.precision(_); return reset(); }; albersUsa.scale = function(_) { if (!arguments.length) return lower48.scale(); lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_), puertoRico.scale(_), guamMariana.scale(_), americanSamoa.scale(_); return albersUsa.translate(lower48.translate()); }; albersUsa.translate = function(_) { if (!arguments.length) return lower48.translate(); var k = lower48.scale(), x = +_[0], y = +_[1]; lower48Point = lower48 .translate(_) .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]]) .stream(pointStream); alaskaPoint = alaska .translate([x - 0.310 * k, y + 0.201 * k]) .clipExtent([[x - 0.425 * k + epsilon, y + 0.120 * k + epsilon], [x - 0.214 * k - epsilon, y + 0.234 * k - epsilon]]) .stream(pointStream); hawaiiPoint = hawaii .translate([x - 0.205 * k, y + 0.212 * k]) .clipExtent([[x - 0.214 * k + epsilon, y + 0.166 * k + epsilon], [x - 0.115 * k - epsilon, y + 0.234 * k - epsilon]]) .stream(pointStream); puertoRicoPoint = puertoRico .translate([x + 0.335 * k, y + 0.224 * k]) .clipExtent([[x + 0.300 * k, y + 0.204 * k], [x + 0.380 * k, y + 0.234 * k]]) .stream(pointStream).point; guamMarianaPoint = guamMariana .translate([x + 0.360 * k, y + 0.140 * k]) .clipExtent([[x + 0.340 * k, y + 0.050 * k], [x + 0.380 * k, y + 0.204 * k]]) .stream(pointStream).point; americanSamoaPoint = americanSamoa .translate([x + 0.315 * k, y + 0.180 * k]) .clipExtent([[x + 0.280 * k, y + 0.160 * k], [x + 0.340 * k, y + 0.204 * k]]) .stream(pointStream).point; return reset(); }; function reset() { cache = cacheStream = null; return albersUsa; } return albersUsa.scale(1070); }