{"version":3,"file":"index-BU_elMrn.js","sources":["../../node_modules/@mui/icons-material/esm/Email.js","../../node_modules/@mui/icons-material/esm/Facebook.js","../../node_modules/@mui/icons-material/esm/Link.js","../../node_modules/@mui/icons-material/esm/LinkedIn.js","../../node_modules/@mui/icons-material/esm/Public.js","../../node_modules/@mui/icons-material/esm/Share.js","../../node_modules/d3-ease/src/cubic.js","../../node_modules/topojson-client/src/identity.js","../../node_modules/topojson-client/src/transform.js","../../node_modules/topojson-client/src/reverse.js","../../node_modules/topojson-client/src/feature.js","../../node_modules/d3-array/src/fsum.js","../../node_modules/d3-array/src/merge.js","../../node_modules/d3-geo/src/math.js","../../node_modules/d3-geo/src/noop.js","../../node_modules/d3-geo/src/stream.js","../../node_modules/d3-geo/src/cartesian.js","../../node_modules/d3-geo/src/constant.js","../../node_modules/d3-geo/src/compose.js","../../node_modules/d3-geo/src/rotation.js","../../node_modules/d3-geo/src/circle.js","../../node_modules/d3-geo/src/clip/buffer.js","../../node_modules/d3-geo/src/pointEqual.js","../../node_modules/d3-geo/src/clip/rejoin.js","../../node_modules/d3-geo/src/polygonContains.js","../../node_modules/d3-geo/src/clip/index.js","../../node_modules/d3-geo/src/clip/antimeridian.js","../../node_modules/d3-geo/src/clip/circle.js","../../node_modules/d3-geo/src/clip/line.js","../../node_modules/d3-geo/src/clip/rectangle.js","../../node_modules/d3-geo/src/identity.js","../../node_modules/d3-geo/src/path/area.js","../../node_modules/d3-geo/src/path/bounds.js","../../node_modules/d3-geo/src/path/centroid.js","../../node_modules/d3-geo/src/path/context.js","../../node_modules/d3-geo/src/path/measure.js","../../node_modules/d3-geo/src/path/string.js","../../node_modules/d3-geo/src/path/index.js","../../node_modules/d3-geo/src/transform.js","../../node_modules/d3-geo/src/projection/fit.js","../../node_modules/d3-geo/src/projection/resample.js","../../node_modules/d3-geo/src/projection/index.js","../../node_modules/d3-geo/src/projection/azimuthal.js","../../node_modules/d3-geo/src/projection/orthographic.js","../../node_modules/d3-color/src/define.js","../../node_modules/d3-color/src/color.js","../../node_modules/d3-interpolate/src/constant.js","../../node_modules/d3-interpolate/src/color.js","../../node_modules/d3-interpolate/src/rgb.js","../../node_modules/d3-interpolate/src/numberArray.js","../../node_modules/d3-interpolate/src/array.js","../../node_modules/d3-interpolate/src/date.js","../../node_modules/d3-interpolate/src/number.js","../../node_modules/d3-interpolate/src/object.js","../../node_modules/d3-interpolate/src/string.js","../../node_modules/d3-interpolate/src/value.js","../../node_modules/@apps-common/react-globe/src/index.jsx","../../src/assets/icons/by.jsx","../../src/assets/icons/cc.jsx","../../src/assets/icons/nc.jsx","../../src/pages/viewer/compare.jsx","../../src/pages/viewer/share-dialog/share-button.jsx","../../src/assets/icons/x-logo.jsx","../../src/pages/viewer/share-dialog/x-logo.jsx","../../src/pages/viewer/share-dialog/index.jsx","../../src/pages/viewer/video.jsx","../../src/pages/viewer/index.jsx"],"sourcesContent":["\"use client\";\n\nimport createSvgIcon from \"./utils/createSvgIcon.js\";\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default createSvgIcon(/*#__PURE__*/_jsx(\"path\", {\n d: \"M20 4H4c-1.1 0-1.99.9-1.99 2L2 18c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2m0 4-8 5-8-5V6l8 5 8-5z\"\n}), 'Email');","'use client';\n\nimport * as React from 'react';\nimport createSvgIcon from \"./utils/createSvgIcon.js\";\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default createSvgIcon(/*#__PURE__*/_jsx(\"path\", {\n d: \"M5 3h14a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2m13 2h-2.5A3.5 3.5 0 0 0 12 8.5V11h-2v3h2v7h3v-7h3v-3h-3V9a1 1 0 0 1 1-1h2V5z\"\n}), 'Facebook');","\"use client\";\n\nimport createSvgIcon from \"./utils/createSvgIcon.js\";\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default createSvgIcon(/*#__PURE__*/_jsx(\"path\", {\n d: \"M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1M8 13h8v-2H8zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5\"\n}), 'Link');","'use client';\n\nimport * as React from 'react';\nimport createSvgIcon from \"./utils/createSvgIcon.js\";\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default createSvgIcon(/*#__PURE__*/_jsx(\"path\", {\n d: \"M19 3a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h14m-.5 15.5v-5.3a3.26 3.26 0 0 0-3.26-3.26c-.85 0-1.84.52-2.32 1.3v-1.11h-2.79v8.37h2.79v-4.93c0-.77.62-1.4 1.39-1.4a1.4 1.4 0 0 1 1.4 1.4v4.93h2.79M6.88 8.56a1.68 1.68 0 0 0 1.68-1.68c0-.93-.75-1.69-1.68-1.69a1.69 1.69 0 0 0-1.69 1.69c0 .93.76 1.68 1.69 1.68m1.39 9.94v-8.37H5.5v8.37h2.77z\"\n}), 'LinkedIn');","\"use client\";\n\nimport createSvgIcon from \"./utils/createSvgIcon.js\";\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default createSvgIcon(/*#__PURE__*/_jsx(\"path\", {\n d: \"M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2m-1 17.93c-3.95-.49-7-3.85-7-7.93 0-.62.08-1.21.21-1.79L9 15v1c0 1.1.9 2 2 2zm6.9-2.54c-.26-.81-1-1.39-1.9-1.39h-1v-3c0-.55-.45-1-1-1H8v-2h2c.55 0 1-.45 1-1V7h2c1.1 0 2-.9 2-2v-.41c2.93 1.19 5 4.06 5 7.41 0 2.08-.8 3.97-2.1 5.39\"\n}), 'Public');","\"use client\";\n\nimport createSvgIcon from \"./utils/createSvgIcon.js\";\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default createSvgIcon(/*#__PURE__*/_jsx(\"path\", {\n d: \"M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7s-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81 1.66 0 3-1.34 3-3s-1.34-3-3-3-3 1.34-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9c-1.66 0-3 1.34-3 3s1.34 3 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.16c-.05.21-.08.43-.08.65 0 1.61 1.31 2.92 2.92 2.92s2.92-1.31 2.92-2.92-1.31-2.92-2.92-2.92\"\n}), 'Share');","export function cubicIn(t) {\n return t * t * t;\n}\n\nexport function cubicOut(t) {\n return --t * t * t + 1;\n}\n\nexport function cubicInOut(t) {\n return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2;\n}\n","export default function(x) {\n return x;\n}\n","import identity from \"./identity.js\";\n\nexport default function(transform) {\n if (transform == null) return identity;\n var x0,\n y0,\n kx = transform.scale[0],\n ky = transform.scale[1],\n dx = transform.translate[0],\n dy = transform.translate[1];\n return function(input, i) {\n if (!i) x0 = y0 = 0;\n var j = 2, n = input.length, output = new Array(n);\n output[0] = (x0 += input[0]) * kx + dx;\n output[1] = (y0 += input[1]) * ky + dy;\n while (j < n) output[j] = input[j], ++j;\n return output;\n };\n}\n","export default function(array, n) {\n var t, j = array.length, i = j - n;\n while (i < --j) t = array[i], array[i++] = array[j], array[j] = t;\n}\n","import reverse from \"./reverse.js\";\nimport transform from \"./transform.js\";\n\nexport default function(topology, o) {\n if (typeof o === \"string\") o = topology.objects[o];\n return o.type === \"GeometryCollection\"\n ? {type: \"FeatureCollection\", features: o.geometries.map(function(o) { return feature(topology, o); })}\n : feature(topology, o);\n}\n\nfunction feature(topology, o) {\n var id = o.id,\n bbox = o.bbox,\n properties = o.properties == null ? {} : o.properties,\n geometry = object(topology, o);\n return id == null && bbox == null ? {type: \"Feature\", properties: properties, geometry: geometry}\n : bbox == null ? {type: \"Feature\", id: id, properties: properties, geometry: geometry}\n : {type: \"Feature\", id: id, bbox: bbox, properties: properties, geometry: geometry};\n}\n\nexport function object(topology, o) {\n var transformPoint = transform(topology.transform),\n arcs = topology.arcs;\n\n function arc(i, points) {\n if (points.length) points.pop();\n for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length; k < n; ++k) {\n points.push(transformPoint(a[k], k));\n }\n if (i < 0) reverse(points, n);\n }\n\n function point(p) {\n return transformPoint(p);\n }\n\n function line(arcs) {\n var points = [];\n for (var i = 0, n = arcs.length; i < n; ++i) arc(arcs[i], points);\n if (points.length < 2) points.push(points[0]); // This should never happen per the specification.\n return points;\n }\n\n function ring(arcs) {\n var points = line(arcs);\n while (points.length < 4) points.push(points[0]); // This may happen if an arc has only two points.\n return points;\n }\n\n function polygon(arcs) {\n return arcs.map(ring);\n }\n\n function geometry(o) {\n var type = o.type, coordinates;\n switch (type) {\n case \"GeometryCollection\": return {type: type, geometries: o.geometries.map(geometry)};\n case \"Point\": coordinates = point(o.coordinates); break;\n case \"MultiPoint\": coordinates = o.coordinates.map(point); break;\n case \"LineString\": coordinates = line(o.arcs); break;\n case \"MultiLineString\": coordinates = o.arcs.map(line); break;\n case \"Polygon\": coordinates = polygon(o.arcs); break;\n case \"MultiPolygon\": coordinates = o.arcs.map(polygon); break;\n default: return null;\n }\n return {type: type, coordinates: coordinates};\n }\n\n return geometry(o);\n}\n","// https://github.com/python/cpython/blob/a74eea238f5baba15797e2e8b570d153bc8690a7/Modules/mathmodule.c#L1423\nexport class Adder {\n constructor() {\n this._partials = new Float64Array(32);\n this._n = 0;\n }\n add(x) {\n const p = this._partials;\n let i = 0;\n for (let j = 0; j < this._n && j < 32; j++) {\n const y = p[j],\n hi = x + y,\n lo = Math.abs(x) < Math.abs(y) ? x - (hi - y) : y - (hi - x);\n if (lo) p[i++] = lo;\n x = hi;\n }\n p[i] = x;\n this._n = i + 1;\n return this;\n }\n valueOf() {\n const p = this._partials;\n let n = this._n, x, y, lo, hi = 0;\n if (n > 0) {\n hi = p[--n];\n while (n > 0) {\n x = hi;\n y = p[--n];\n hi = x + y;\n lo = y - (hi - x);\n if (lo) break;\n }\n if (n > 0 && ((lo < 0 && p[n - 1] < 0) || (lo > 0 && p[n - 1] > 0))) {\n y = lo * 2;\n x = hi + y;\n if (y == x - hi) hi = x;\n }\n }\n return hi;\n }\n}\n\nexport function fsum(values, valueof) {\n const adder = new Adder();\n if (valueof === undefined) {\n for (let value of values) {\n if (value = +value) {\n adder.add(value);\n }\n }\n } else {\n let index = -1;\n for (let value of values) {\n if (value = +valueof(value, ++index, values)) {\n adder.add(value);\n }\n }\n }\n return +adder;\n}\n\nexport function fcumsum(values, valueof) {\n const adder = new Adder();\n let index = -1;\n return Float64Array.from(values, valueof === undefined\n ? v => adder.add(+v || 0)\n : v => adder.add(+valueof(v, ++index, values) || 0)\n );\n}\n","function* flatten(arrays) {\n for (const array of arrays) {\n yield* array;\n }\n}\n\nexport default function merge(arrays) {\n return Array.from(flatten(arrays));\n}\n","export var epsilon = 1e-6;\nexport var epsilon2 = 1e-12;\nexport var pi = Math.PI;\nexport var halfPi = pi / 2;\nexport var quarterPi = pi / 4;\nexport var tau = pi * 2;\n\nexport var degrees = 180 / pi;\nexport var radians = pi / 180;\n\nexport var abs = Math.abs;\nexport var atan = Math.atan;\nexport var atan2 = Math.atan2;\nexport var cos = Math.cos;\nexport var ceil = Math.ceil;\nexport var exp = Math.exp;\nexport var floor = Math.floor;\nexport var hypot = Math.hypot;\nexport var log = Math.log;\nexport var pow = Math.pow;\nexport var sin = Math.sin;\nexport var sign = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; };\nexport var sqrt = Math.sqrt;\nexport var tan = Math.tan;\n\nexport function acos(x) {\n return x > 1 ? 0 : x < -1 ? pi : Math.acos(x);\n}\n\nexport function asin(x) {\n return x > 1 ? halfPi : x < -1 ? -halfPi : Math.asin(x);\n}\n\nexport function haversin(x) {\n return (x = sin(x / 2)) * x;\n}\n","export default function noop() {}\n","function streamGeometry(geometry, stream) {\n if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) {\n streamGeometryType[geometry.type](geometry, stream);\n }\n}\n\nvar streamObjectType = {\n Feature: function(object, stream) {\n streamGeometry(object.geometry, stream);\n },\n FeatureCollection: function(object, stream) {\n var features = object.features, i = -1, n = features.length;\n while (++i < n) streamGeometry(features[i].geometry, stream);\n }\n};\n\nvar streamGeometryType = {\n Sphere: function(object, stream) {\n stream.sphere();\n },\n Point: function(object, stream) {\n object = object.coordinates;\n stream.point(object[0], object[1], object[2]);\n },\n MultiPoint: function(object, stream) {\n var coordinates = object.coordinates, i = -1, n = coordinates.length;\n while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]);\n },\n LineString: function(object, stream) {\n streamLine(object.coordinates, stream, 0);\n },\n MultiLineString: function(object, stream) {\n var coordinates = object.coordinates, i = -1, n = coordinates.length;\n while (++i < n) streamLine(coordinates[i], stream, 0);\n },\n Polygon: function(object, stream) {\n streamPolygon(object.coordinates, stream);\n },\n MultiPolygon: function(object, stream) {\n var coordinates = object.coordinates, i = -1, n = coordinates.length;\n while (++i < n) streamPolygon(coordinates[i], stream);\n },\n GeometryCollection: function(object, stream) {\n var geometries = object.geometries, i = -1, n = geometries.length;\n while (++i < n) streamGeometry(geometries[i], stream);\n }\n};\n\nfunction streamLine(coordinates, stream, closed) {\n var i = -1, n = coordinates.length - closed, coordinate;\n stream.lineStart();\n while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]);\n stream.lineEnd();\n}\n\nfunction streamPolygon(coordinates, stream) {\n var i = -1, n = coordinates.length;\n stream.polygonStart();\n while (++i < n) streamLine(coordinates[i], stream, 1);\n stream.polygonEnd();\n}\n\nexport default function(object, stream) {\n if (object && streamObjectType.hasOwnProperty(object.type)) {\n streamObjectType[object.type](object, stream);\n } else {\n streamGeometry(object, stream);\n }\n}\n","import {asin, atan2, cos, sin, sqrt} from \"./math.js\";\n\nexport function spherical(cartesian) {\n return [atan2(cartesian[1], cartesian[0]), asin(cartesian[2])];\n}\n\nexport function cartesian(spherical) {\n var lambda = spherical[0], phi = spherical[1], cosPhi = cos(phi);\n return [cosPhi * cos(lambda), cosPhi * sin(lambda), sin(phi)];\n}\n\nexport function cartesianDot(a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n}\n\nexport function cartesianCross(a, b) {\n return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]];\n}\n\n// TODO return a\nexport function cartesianAddInPlace(a, b) {\n a[0] += b[0], a[1] += b[1], a[2] += b[2];\n}\n\nexport function cartesianScale(vector, k) {\n return [vector[0] * k, vector[1] * k, vector[2] * k];\n}\n\n// TODO return d\nexport function cartesianNormalizeInPlace(d) {\n var l = sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);\n d[0] /= l, d[1] /= l, d[2] /= l;\n}\n","export default function(x) {\n return function() {\n return x;\n };\n}\n","export default function(a, b) {\n\n function compose(x, y) {\n return x = a(x, y), b(x[0], x[1]);\n }\n\n if (a.invert && b.invert) compose.invert = function(x, y) {\n return x = b.invert(x, y), x && a.invert(x[0], x[1]);\n };\n\n return compose;\n}\n","import compose from \"./compose.js\";\nimport {abs, asin, atan2, cos, degrees, pi, radians, sin, tau} from \"./math.js\";\n\nfunction rotationIdentity(lambda, phi) {\n if (abs(lambda) > pi) lambda -= Math.round(lambda / tau) * tau;\n return [lambda, phi];\n}\n\nrotationIdentity.invert = rotationIdentity;\n\nexport function rotateRadians(deltaLambda, deltaPhi, deltaGamma) {\n return (deltaLambda %= tau) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma))\n : rotationLambda(deltaLambda))\n : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma)\n : rotationIdentity);\n}\n\nfunction forwardRotationLambda(deltaLambda) {\n return function(lambda, phi) {\n lambda += deltaLambda;\n if (abs(lambda) > pi) lambda -= Math.round(lambda / tau) * tau;\n return [lambda, phi];\n };\n}\n\nfunction rotationLambda(deltaLambda) {\n var rotation = forwardRotationLambda(deltaLambda);\n rotation.invert = forwardRotationLambda(-deltaLambda);\n return rotation;\n}\n\nfunction rotationPhiGamma(deltaPhi, deltaGamma) {\n var cosDeltaPhi = cos(deltaPhi),\n sinDeltaPhi = sin(deltaPhi),\n cosDeltaGamma = cos(deltaGamma),\n sinDeltaGamma = sin(deltaGamma);\n\n function rotation(lambda, phi) {\n var cosPhi = cos(phi),\n x = cos(lambda) * cosPhi,\n y = sin(lambda) * cosPhi,\n z = sin(phi),\n k = z * cosDeltaPhi + x * sinDeltaPhi;\n return [\n atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi),\n asin(k * cosDeltaGamma + y * sinDeltaGamma)\n ];\n }\n\n rotation.invert = function(lambda, phi) {\n var cosPhi = cos(phi),\n x = cos(lambda) * cosPhi,\n y = sin(lambda) * cosPhi,\n z = sin(phi),\n k = z * cosDeltaGamma - y * sinDeltaGamma;\n return [\n atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi),\n asin(k * cosDeltaPhi - x * sinDeltaPhi)\n ];\n };\n\n return rotation;\n}\n\nexport default function(rotate) {\n rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0);\n\n function forward(coordinates) {\n coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians);\n return coordinates[0] *= degrees, coordinates[1] *= degrees, coordinates;\n }\n\n forward.invert = function(coordinates) {\n coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians);\n return coordinates[0] *= degrees, coordinates[1] *= degrees, coordinates;\n };\n\n return forward;\n}\n","import {cartesian, cartesianNormalizeInPlace, spherical} from \"./cartesian.js\";\nimport constant from \"./constant.js\";\nimport {acos, cos, degrees, epsilon, radians, sin, tau} from \"./math.js\";\nimport {rotateRadians} from \"./rotation.js\";\n\n// Generates a circle centered at [0°, 0°], with a given radius and precision.\nexport function circleStream(stream, radius, delta, direction, t0, t1) {\n if (!delta) return;\n var cosRadius = cos(radius),\n sinRadius = sin(radius),\n step = direction * delta;\n if (t0 == null) {\n t0 = radius + direction * tau;\n t1 = radius - step / 2;\n } else {\n t0 = circleRadius(cosRadius, t0);\n t1 = circleRadius(cosRadius, t1);\n if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau;\n }\n for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) {\n point = spherical([cosRadius, -sinRadius * cos(t), -sinRadius * sin(t)]);\n stream.point(point[0], point[1]);\n }\n}\n\n// Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0].\nfunction circleRadius(cosRadius, point) {\n point = cartesian(point), point[0] -= cosRadius;\n cartesianNormalizeInPlace(point);\n var radius = acos(-point[1]);\n return ((-point[2] < 0 ? -radius : radius) + tau - epsilon) % tau;\n}\n\nexport default function() {\n var center = constant([0, 0]),\n radius = constant(90),\n precision = constant(2),\n ring,\n rotate,\n stream = {point: point};\n\n function point(x, y) {\n ring.push(x = rotate(x, y));\n x[0] *= degrees, x[1] *= degrees;\n }\n\n function circle() {\n var c = center.apply(this, arguments),\n r = radius.apply(this, arguments) * radians,\n p = precision.apply(this, arguments) * radians;\n ring = [];\n rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert;\n circleStream(stream, r, p, 1);\n c = {type: \"Polygon\", coordinates: [ring]};\n ring = rotate = null;\n return c;\n }\n\n circle.center = function(_) {\n return arguments.length ? (center = typeof _ === \"function\" ? _ : constant([+_[0], +_[1]]), circle) : center;\n };\n\n circle.radius = function(_) {\n return arguments.length ? (radius = typeof _ === \"function\" ? _ : constant(+_), circle) : radius;\n };\n\n circle.precision = function(_) {\n return arguments.length ? (precision = typeof _ === \"function\" ? _ : constant(+_), circle) : precision;\n };\n\n return circle;\n}\n","import noop from \"../noop.js\";\n\nexport default function() {\n var lines = [],\n line;\n return {\n point: function(x, y, m) {\n line.push([x, y, m]);\n },\n lineStart: function() {\n lines.push(line = []);\n },\n lineEnd: noop,\n rejoin: function() {\n if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));\n },\n result: function() {\n var result = lines;\n lines = [];\n line = null;\n return result;\n }\n };\n}\n","import {abs, epsilon} from \"./math.js\";\n\nexport default function(a, b) {\n return abs(a[0] - b[0]) < epsilon && abs(a[1] - b[1]) < epsilon;\n}\n","import pointEqual from \"../pointEqual.js\";\nimport {epsilon} from \"../math.js\";\n\nfunction Intersection(point, points, other, entry) {\n this.x = point;\n this.z = points;\n this.o = other; // another intersection\n this.e = entry; // is an entry?\n this.v = false; // visited\n this.n = this.p = null; // next & previous\n}\n\n// A generalized polygon clipping algorithm: given a polygon that has been cut\n// into its visible line segments, and rejoins the segments by interpolating\n// along the clip edge.\nexport default function(segments, compareIntersection, startInside, interpolate, stream) {\n var subject = [],\n clip = [],\n i,\n n;\n\n segments.forEach(function(segment) {\n if ((n = segment.length - 1) <= 0) return;\n var n, p0 = segment[0], p1 = segment[n], x;\n\n if (pointEqual(p0, p1)) {\n if (!p0[2] && !p1[2]) {\n stream.lineStart();\n for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]);\n stream.lineEnd();\n return;\n }\n // handle degenerate cases by moving the point\n p1[0] += 2 * epsilon;\n }\n\n subject.push(x = new Intersection(p0, segment, null, true));\n clip.push(x.o = new Intersection(p0, null, x, false));\n subject.push(x = new Intersection(p1, segment, null, false));\n clip.push(x.o = new Intersection(p1, null, x, true));\n });\n\n if (!subject.length) return;\n\n clip.sort(compareIntersection);\n link(subject);\n link(clip);\n\n for (i = 0, n = clip.length; i < n; ++i) {\n clip[i].e = startInside = !startInside;\n }\n\n var start = subject[0],\n points,\n point;\n\n while (1) {\n // Find first unvisited intersection.\n var current = start,\n isSubject = true;\n while (current.v) if ((current = current.n) === start) return;\n points = current.z;\n stream.lineStart();\n do {\n current.v = current.o.v = true;\n if (current.e) {\n if (isSubject) {\n for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]);\n } else {\n interpolate(current.x, current.n.x, 1, stream);\n }\n current = current.n;\n } else {\n if (isSubject) {\n points = current.p.z;\n for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]);\n } else {\n interpolate(current.x, current.p.x, -1, stream);\n }\n current = current.p;\n }\n current = current.o;\n points = current.z;\n isSubject = !isSubject;\n } while (!current.v);\n stream.lineEnd();\n }\n}\n\nfunction link(array) {\n if (!(n = array.length)) return;\n var n,\n i = 0,\n a = array[0],\n b;\n while (++i < n) {\n a.n = b = array[i];\n b.p = a;\n a = b;\n }\n a.n = b = array[0];\n b.p = a;\n}\n","import {Adder} from \"d3-array\";\nimport {cartesian, cartesianCross, cartesianNormalizeInPlace} from \"./cartesian.js\";\nimport {abs, asin, atan2, cos, epsilon, epsilon2, halfPi, pi, quarterPi, sign, sin, tau} from \"./math.js\";\n\nfunction longitude(point) {\n return abs(point[0]) <= pi ? point[0] : sign(point[0]) * ((abs(point[0]) + pi) % tau - pi);\n}\n\nexport default function(polygon, point) {\n var lambda = longitude(point),\n phi = point[1],\n sinPhi = sin(phi),\n normal = [sin(lambda), -cos(lambda), 0],\n angle = 0,\n winding = 0;\n\n var sum = new Adder();\n\n if (sinPhi === 1) phi = halfPi + epsilon;\n else if (sinPhi === -1) phi = -halfPi - epsilon;\n\n for (var i = 0, n = polygon.length; i < n; ++i) {\n if (!(m = (ring = polygon[i]).length)) continue;\n var ring,\n m,\n point0 = ring[m - 1],\n lambda0 = longitude(point0),\n phi0 = point0[1] / 2 + quarterPi,\n sinPhi0 = sin(phi0),\n cosPhi0 = cos(phi0);\n\n for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) {\n var point1 = ring[j],\n lambda1 = longitude(point1),\n phi1 = point1[1] / 2 + quarterPi,\n sinPhi1 = sin(phi1),\n cosPhi1 = cos(phi1),\n delta = lambda1 - lambda0,\n sign = delta >= 0 ? 1 : -1,\n absDelta = sign * delta,\n antimeridian = absDelta > pi,\n k = sinPhi0 * sinPhi1;\n\n sum.add(atan2(k * sign * sin(absDelta), cosPhi0 * cosPhi1 + k * cos(absDelta)));\n angle += antimeridian ? delta + sign * tau : delta;\n\n // Are the longitudes either side of the point’s meridian (lambda),\n // and are the latitudes smaller than the parallel (phi)?\n if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) {\n var arc = cartesianCross(cartesian(point0), cartesian(point1));\n cartesianNormalizeInPlace(arc);\n var intersection = cartesianCross(normal, arc);\n cartesianNormalizeInPlace(intersection);\n var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin(intersection[2]);\n if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) {\n winding += antimeridian ^ delta >= 0 ? 1 : -1;\n }\n }\n }\n }\n\n // First, determine whether the South pole is inside or outside:\n //\n // It is inside if:\n // * the polygon winds around it in a clockwise direction.\n // * the polygon does not (cumulatively) wind around it, but has a negative\n // (counter-clockwise) area.\n //\n // Second, count the (signed) number of times a segment crosses a lambda\n // from the point to the South pole. If it is zero, then the point is the\n // same side as the South pole.\n\n return (angle < -epsilon || angle < epsilon && sum < -epsilon2) ^ (winding & 1);\n}\n","import clipBuffer from \"./buffer.js\";\nimport clipRejoin from \"./rejoin.js\";\nimport {epsilon, halfPi} from \"../math.js\";\nimport polygonContains from \"../polygonContains.js\";\nimport {merge} from \"d3-array\";\n\nexport default function(pointVisible, clipLine, interpolate, start) {\n return function(sink) {\n var line = clipLine(sink),\n ringBuffer = clipBuffer(),\n ringSink = clipLine(ringBuffer),\n polygonStarted = false,\n polygon,\n segments,\n ring;\n\n var clip = {\n point: point,\n lineStart: lineStart,\n lineEnd: lineEnd,\n polygonStart: function() {\n clip.point = pointRing;\n clip.lineStart = ringStart;\n clip.lineEnd = ringEnd;\n segments = [];\n polygon = [];\n },\n polygonEnd: function() {\n clip.point = point;\n clip.lineStart = lineStart;\n clip.lineEnd = lineEnd;\n segments = merge(segments);\n var startInside = polygonContains(polygon, start);\n if (segments.length) {\n if (!polygonStarted) sink.polygonStart(), polygonStarted = true;\n clipRejoin(segments, compareIntersection, startInside, interpolate, sink);\n } else if (startInside) {\n if (!polygonStarted) sink.polygonStart(), polygonStarted = true;\n sink.lineStart();\n interpolate(null, null, 1, sink);\n sink.lineEnd();\n }\n if (polygonStarted) sink.polygonEnd(), polygonStarted = false;\n segments = polygon = null;\n },\n sphere: function() {\n sink.polygonStart();\n sink.lineStart();\n interpolate(null, null, 1, sink);\n sink.lineEnd();\n sink.polygonEnd();\n }\n };\n\n function point(lambda, phi) {\n if (pointVisible(lambda, phi)) sink.point(lambda, phi);\n }\n\n function pointLine(lambda, phi) {\n line.point(lambda, phi);\n }\n\n function lineStart() {\n clip.point = pointLine;\n line.lineStart();\n }\n\n function lineEnd() {\n clip.point = point;\n line.lineEnd();\n }\n\n function pointRing(lambda, phi) {\n ring.push([lambda, phi]);\n ringSink.point(lambda, phi);\n }\n\n function ringStart() {\n ringSink.lineStart();\n ring = [];\n }\n\n function ringEnd() {\n pointRing(ring[0][0], ring[0][1]);\n ringSink.lineEnd();\n\n var clean = ringSink.clean(),\n ringSegments = ringBuffer.result(),\n i, n = ringSegments.length, m,\n segment,\n point;\n\n ring.pop();\n polygon.push(ring);\n ring = null;\n\n if (!n) return;\n\n // No intersections.\n if (clean & 1) {\n segment = ringSegments[0];\n if ((m = segment.length - 1) > 0) {\n if (!polygonStarted) sink.polygonStart(), polygonStarted = true;\n sink.lineStart();\n for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]);\n sink.lineEnd();\n }\n return;\n }\n\n // Rejoin connected segments.\n // TODO reuse ringBuffer.rejoin()?\n if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));\n\n segments.push(ringSegments.filter(validSegment));\n }\n\n return clip;\n };\n}\n\nfunction validSegment(segment) {\n return segment.length > 1;\n}\n\n// Intersections are sorted along the clip edge. For both antimeridian cutting\n// and circle clipping, the same comparison is used.\nfunction compareIntersection(a, b) {\n return ((a = a.x)[0] < 0 ? a[1] - halfPi - epsilon : halfPi - a[1])\n - ((b = b.x)[0] < 0 ? b[1] - halfPi - epsilon : halfPi - b[1]);\n}\n","import clip from \"./index.js\";\nimport {abs, atan, cos, epsilon, halfPi, pi, sin} from \"../math.js\";\n\nexport default clip(\n function() { return true; },\n clipAntimeridianLine,\n clipAntimeridianInterpolate,\n [-pi, -halfPi]\n);\n\n// Takes a line and cuts into visible segments. Return values: 0 - there were\n// intersections or the line was empty; 1 - no intersections; 2 - there were\n// intersections, and the first and last segments should be rejoined.\nfunction clipAntimeridianLine(stream) {\n var lambda0 = NaN,\n phi0 = NaN,\n sign0 = NaN,\n clean; // no intersections\n\n return {\n lineStart: function() {\n stream.lineStart();\n clean = 1;\n },\n point: function(lambda1, phi1) {\n var sign1 = lambda1 > 0 ? pi : -pi,\n delta = abs(lambda1 - lambda0);\n if (abs(delta - pi) < epsilon) { // line crosses a pole\n stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi : -halfPi);\n stream.point(sign0, phi0);\n stream.lineEnd();\n stream.lineStart();\n stream.point(sign1, phi0);\n stream.point(lambda1, phi0);\n clean = 0;\n } else if (sign0 !== sign1 && delta >= pi) { // line crosses antimeridian\n if (abs(lambda0 - sign0) < epsilon) lambda0 -= sign0 * epsilon; // handle degeneracies\n if (abs(lambda1 - sign1) < epsilon) lambda1 -= sign1 * epsilon;\n phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1);\n stream.point(sign0, phi0);\n stream.lineEnd();\n stream.lineStart();\n stream.point(sign1, phi0);\n clean = 0;\n }\n stream.point(lambda0 = lambda1, phi0 = phi1);\n sign0 = sign1;\n },\n lineEnd: function() {\n stream.lineEnd();\n lambda0 = phi0 = NaN;\n },\n clean: function() {\n return 2 - clean; // if intersections, rejoin first and last segments\n }\n };\n}\n\nfunction clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) {\n var cosPhi0,\n cosPhi1,\n sinLambda0Lambda1 = sin(lambda0 - lambda1);\n return abs(sinLambda0Lambda1) > epsilon\n ? atan((sin(phi0) * (cosPhi1 = cos(phi1)) * sin(lambda1)\n - sin(phi1) * (cosPhi0 = cos(phi0)) * sin(lambda0))\n / (cosPhi0 * cosPhi1 * sinLambda0Lambda1))\n : (phi0 + phi1) / 2;\n}\n\nfunction clipAntimeridianInterpolate(from, to, direction, stream) {\n var phi;\n if (from == null) {\n phi = direction * halfPi;\n stream.point(-pi, phi);\n stream.point(0, phi);\n stream.point(pi, phi);\n stream.point(pi, 0);\n stream.point(pi, -phi);\n stream.point(0, -phi);\n stream.point(-pi, -phi);\n stream.point(-pi, 0);\n stream.point(-pi, phi);\n } else if (abs(from[0] - to[0]) > epsilon) {\n var lambda = from[0] < to[0] ? pi : -pi;\n phi = direction * lambda / 2;\n stream.point(-lambda, phi);\n stream.point(0, phi);\n stream.point(lambda, phi);\n } else {\n stream.point(to[0], to[1]);\n }\n}\n","import {cartesian, cartesianAddInPlace, cartesianCross, cartesianDot, cartesianScale, spherical} from \"../cartesian.js\";\nimport {circleStream} from \"../circle.js\";\nimport {abs, cos, epsilon, pi, radians, sqrt} from \"../math.js\";\nimport pointEqual from \"../pointEqual.js\";\nimport clip from \"./index.js\";\n\nexport default function(radius) {\n var cr = cos(radius),\n delta = 2 * radians,\n smallRadius = cr > 0,\n notHemisphere = abs(cr) > epsilon; // TODO optimise for this common case\n\n function interpolate(from, to, direction, stream) {\n circleStream(stream, radius, delta, direction, from, to);\n }\n\n function visible(lambda, phi) {\n return cos(lambda) * cos(phi) > cr;\n }\n\n // Takes a line and cuts into visible segments. Return values used for polygon\n // clipping: 0 - there were intersections or the line was empty; 1 - no\n // intersections 2 - there were intersections, and the first and last segments\n // should be rejoined.\n function clipLine(stream) {\n var point0, // previous point\n c0, // code for previous point\n v0, // visibility of previous point\n v00, // visibility of first point\n clean; // no intersections\n return {\n lineStart: function() {\n v00 = v0 = false;\n clean = 1;\n },\n point: function(lambda, phi) {\n var point1 = [lambda, phi],\n point2,\n v = visible(lambda, phi),\n c = smallRadius\n ? v ? 0 : code(lambda, phi)\n : v ? code(lambda + (lambda < 0 ? pi : -pi), phi) : 0;\n if (!point0 && (v00 = v0 = v)) stream.lineStart();\n if (v !== v0) {\n point2 = intersect(point0, point1);\n if (!point2 || pointEqual(point0, point2) || pointEqual(point1, point2))\n point1[2] = 1;\n }\n if (v !== v0) {\n clean = 0;\n if (v) {\n // outside going in\n stream.lineStart();\n point2 = intersect(point1, point0);\n stream.point(point2[0], point2[1]);\n } else {\n // inside going out\n point2 = intersect(point0, point1);\n stream.point(point2[0], point2[1], 2);\n stream.lineEnd();\n }\n point0 = point2;\n } else if (notHemisphere && point0 && smallRadius ^ v) {\n var t;\n // If the codes for two points are different, or are both zero,\n // and there this segment intersects with the small circle.\n if (!(c & c0) && (t = intersect(point1, point0, true))) {\n clean = 0;\n if (smallRadius) {\n stream.lineStart();\n stream.point(t[0][0], t[0][1]);\n stream.point(t[1][0], t[1][1]);\n stream.lineEnd();\n } else {\n stream.point(t[1][0], t[1][1]);\n stream.lineEnd();\n stream.lineStart();\n stream.point(t[0][0], t[0][1], 3);\n }\n }\n }\n if (v && (!point0 || !pointEqual(point0, point1))) {\n stream.point(point1[0], point1[1]);\n }\n point0 = point1, v0 = v, c0 = c;\n },\n lineEnd: function() {\n if (v0) stream.lineEnd();\n point0 = null;\n },\n // Rejoin first and last segments if there were intersections and the first\n // and last points were visible.\n clean: function() {\n return clean | ((v00 && v0) << 1);\n }\n };\n }\n\n // Intersects the great circle between a and b with the clip circle.\n function intersect(a, b, two) {\n var pa = cartesian(a),\n pb = cartesian(b);\n\n // We have two planes, n1.p = d1 and n2.p = d2.\n // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2).\n var n1 = [1, 0, 0], // normal\n n2 = cartesianCross(pa, pb),\n n2n2 = cartesianDot(n2, n2),\n n1n2 = n2[0], // cartesianDot(n1, n2),\n determinant = n2n2 - n1n2 * n1n2;\n\n // Two polar points.\n if (!determinant) return !two && a;\n\n var c1 = cr * n2n2 / determinant,\n c2 = -cr * n1n2 / determinant,\n n1xn2 = cartesianCross(n1, n2),\n A = cartesianScale(n1, c1),\n B = cartesianScale(n2, c2);\n cartesianAddInPlace(A, B);\n\n // Solve |p(t)|^2 = 1.\n var u = n1xn2,\n w = cartesianDot(A, u),\n uu = cartesianDot(u, u),\n t2 = w * w - uu * (cartesianDot(A, A) - 1);\n\n if (t2 < 0) return;\n\n var t = sqrt(t2),\n q = cartesianScale(u, (-w - t) / uu);\n cartesianAddInPlace(q, A);\n q = spherical(q);\n\n if (!two) return q;\n\n // Two intersection points.\n var lambda0 = a[0],\n lambda1 = b[0],\n phi0 = a[1],\n phi1 = b[1],\n z;\n\n if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z;\n\n var delta = lambda1 - lambda0,\n polar = abs(delta - pi) < epsilon,\n meridian = polar || delta < epsilon;\n\n if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z;\n\n // Check that the first point is between a and b.\n if (meridian\n ? polar\n ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon ? phi0 : phi1)\n : phi0 <= q[1] && q[1] <= phi1\n : delta > pi ^ (lambda0 <= q[0] && q[0] <= lambda1)) {\n var q1 = cartesianScale(u, (-w + t) / uu);\n cartesianAddInPlace(q1, A);\n return [q, spherical(q1)];\n }\n }\n\n // Generates a 4-bit vector representing the location of a point relative to\n // the small circle's bounding box.\n function code(lambda, phi) {\n var r = smallRadius ? radius : pi - radius,\n code = 0;\n if (lambda < -r) code |= 1; // left\n else if (lambda > r) code |= 2; // right\n if (phi < -r) code |= 4; // below\n else if (phi > r) code |= 8; // above\n return code;\n }\n\n return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi, radius - pi]);\n}\n","export default function(a, b, x0, y0, x1, y1) {\n var ax = a[0],\n ay = a[1],\n bx = b[0],\n by = b[1],\n t0 = 0,\n t1 = 1,\n dx = bx - ax,\n dy = by - ay,\n r;\n\n r = x0 - ax;\n if (!dx && r > 0) return;\n r /= dx;\n if (dx < 0) {\n if (r < t0) return;\n if (r < t1) t1 = r;\n } else if (dx > 0) {\n if (r > t1) return;\n if (r > t0) t0 = r;\n }\n\n r = x1 - ax;\n if (!dx && r < 0) return;\n r /= dx;\n if (dx < 0) {\n if (r > t1) return;\n if (r > t0) t0 = r;\n } else if (dx > 0) {\n if (r < t0) return;\n if (r < t1) t1 = r;\n }\n\n r = y0 - ay;\n if (!dy && r > 0) return;\n r /= dy;\n if (dy < 0) {\n if (r < t0) return;\n if (r < t1) t1 = r;\n } else if (dy > 0) {\n if (r > t1) return;\n if (r > t0) t0 = r;\n }\n\n r = y1 - ay;\n if (!dy && r < 0) return;\n r /= dy;\n if (dy < 0) {\n if (r > t1) return;\n if (r > t0) t0 = r;\n } else if (dy > 0) {\n if (r < t0) return;\n if (r < t1) t1 = r;\n }\n\n if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy;\n if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy;\n return true;\n}\n","import {abs, epsilon} from \"../math.js\";\nimport clipBuffer from \"./buffer.js\";\nimport clipLine from \"./line.js\";\nimport clipRejoin from \"./rejoin.js\";\nimport {merge} from \"d3-array\";\n\nvar clipMax = 1e9, clipMin = -clipMax;\n\n// TODO Use d3-polygon’s polygonContains here for the ring check?\n// TODO Eliminate duplicate buffering in clipBuffer and polygon.push?\n\nexport default function clipRectangle(x0, y0, x1, y1) {\n\n function visible(x, y) {\n return x0 <= x && x <= x1 && y0 <= y && y <= y1;\n }\n\n function interpolate(from, to, direction, stream) {\n var a = 0, a1 = 0;\n if (from == null\n || (a = corner(from, direction)) !== (a1 = corner(to, direction))\n || comparePoint(from, to) < 0 ^ direction > 0) {\n do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);\n while ((a = (a + direction + 4) % 4) !== a1);\n } else {\n stream.point(to[0], to[1]);\n }\n }\n\n function corner(p, direction) {\n return abs(p[0] - x0) < epsilon ? direction > 0 ? 0 : 3\n : abs(p[0] - x1) < epsilon ? direction > 0 ? 2 : 1\n : abs(p[1] - y0) < epsilon ? direction > 0 ? 1 : 0\n : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon\n }\n\n function compareIntersection(a, b) {\n return comparePoint(a.x, b.x);\n }\n\n function comparePoint(a, b) {\n var ca = corner(a, 1),\n cb = corner(b, 1);\n return ca !== cb ? ca - cb\n : ca === 0 ? b[1] - a[1]\n : ca === 1 ? a[0] - b[0]\n : ca === 2 ? a[1] - b[1]\n : b[0] - a[0];\n }\n\n return function(stream) {\n var activeStream = stream,\n bufferStream = clipBuffer(),\n segments,\n polygon,\n ring,\n x__, y__, v__, // first point\n x_, y_, v_, // previous point\n first,\n clean;\n\n var clipStream = {\n point: point,\n lineStart: lineStart,\n lineEnd: lineEnd,\n polygonStart: polygonStart,\n polygonEnd: polygonEnd\n };\n\n function point(x, y) {\n if (visible(x, y)) activeStream.point(x, y);\n }\n\n function polygonInside() {\n var winding = 0;\n\n for (var i = 0, n = polygon.length; i < n; ++i) {\n for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) {\n a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1];\n if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; }\n else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; }\n }\n }\n\n return winding;\n }\n\n // Buffer geometry within a polygon and then clip it en masse.\n function polygonStart() {\n activeStream = bufferStream, segments = [], polygon = [], clean = true;\n }\n\n function polygonEnd() {\n var startInside = polygonInside(),\n cleanInside = clean && startInside,\n visible = (segments = merge(segments)).length;\n if (cleanInside || visible) {\n stream.polygonStart();\n if (cleanInside) {\n stream.lineStart();\n interpolate(null, null, 1, stream);\n stream.lineEnd();\n }\n if (visible) {\n clipRejoin(segments, compareIntersection, startInside, interpolate, stream);\n }\n stream.polygonEnd();\n }\n activeStream = stream, segments = polygon = ring = null;\n }\n\n function lineStart() {\n clipStream.point = linePoint;\n if (polygon) polygon.push(ring = []);\n first = true;\n v_ = false;\n x_ = y_ = NaN;\n }\n\n // TODO rather than special-case polygons, simply handle them separately.\n // Ideally, coincident intersection points should be jittered to avoid\n // clipping issues.\n function lineEnd() {\n if (segments) {\n linePoint(x__, y__);\n if (v__ && v_) bufferStream.rejoin();\n segments.push(bufferStream.result());\n }\n clipStream.point = point;\n if (v_) activeStream.lineEnd();\n }\n\n function linePoint(x, y) {\n var v = visible(x, y);\n if (polygon) ring.push([x, y]);\n if (first) {\n x__ = x, y__ = y, v__ = v;\n first = false;\n if (v) {\n activeStream.lineStart();\n activeStream.point(x, y);\n }\n } else {\n if (v && v_) activeStream.point(x, y);\n else {\n var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))],\n b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))];\n if (clipLine(a, b, x0, y0, x1, y1)) {\n if (!v_) {\n activeStream.lineStart();\n activeStream.point(a[0], a[1]);\n }\n activeStream.point(b[0], b[1]);\n if (!v) activeStream.lineEnd();\n clean = false;\n } else if (v) {\n activeStream.lineStart();\n activeStream.point(x, y);\n clean = false;\n }\n }\n }\n x_ = x, y_ = y, v_ = v;\n }\n\n return clipStream;\n };\n}\n","export default x => x;\n","import {Adder} from \"d3-array\";\nimport {abs} from \"../math.js\";\nimport noop from \"../noop.js\";\n\nvar areaSum = new Adder(),\n areaRingSum = new Adder(),\n x00,\n y00,\n x0,\n y0;\n\nvar areaStream = {\n point: noop,\n lineStart: noop,\n lineEnd: noop,\n polygonStart: function() {\n areaStream.lineStart = areaRingStart;\n areaStream.lineEnd = areaRingEnd;\n },\n polygonEnd: function() {\n areaStream.lineStart = areaStream.lineEnd = areaStream.point = noop;\n areaSum.add(abs(areaRingSum));\n areaRingSum = new Adder();\n },\n result: function() {\n var area = areaSum / 2;\n areaSum = new Adder();\n return area;\n }\n};\n\nfunction areaRingStart() {\n areaStream.point = areaPointFirst;\n}\n\nfunction areaPointFirst(x, y) {\n areaStream.point = areaPoint;\n x00 = x0 = x, y00 = y0 = y;\n}\n\nfunction areaPoint(x, y) {\n areaRingSum.add(y0 * x - x0 * y);\n x0 = x, y0 = y;\n}\n\nfunction areaRingEnd() {\n areaPoint(x00, y00);\n}\n\nexport default areaStream;\n","import noop from \"../noop.js\";\n\nvar x0 = Infinity,\n y0 = x0,\n x1 = -x0,\n y1 = x1;\n\nvar boundsStream = {\n point: boundsPoint,\n lineStart: noop,\n lineEnd: noop,\n polygonStart: noop,\n polygonEnd: noop,\n result: function() {\n var bounds = [[x0, y0], [x1, y1]];\n x1 = y1 = -(y0 = x0 = Infinity);\n return bounds;\n }\n};\n\nfunction boundsPoint(x, y) {\n if (x < x0) x0 = x;\n if (x > x1) x1 = x;\n if (y < y0) y0 = y;\n if (y > y1) y1 = y;\n}\n\nexport default boundsStream;\n","import {sqrt} from \"../math.js\";\n\n// TODO Enforce positive area for exterior, negative area for interior?\n\nvar X0 = 0,\n Y0 = 0,\n Z0 = 0,\n X1 = 0,\n Y1 = 0,\n Z1 = 0,\n X2 = 0,\n Y2 = 0,\n Z2 = 0,\n x00,\n y00,\n x0,\n y0;\n\nvar centroidStream = {\n point: centroidPoint,\n lineStart: centroidLineStart,\n lineEnd: centroidLineEnd,\n polygonStart: function() {\n centroidStream.lineStart = centroidRingStart;\n centroidStream.lineEnd = centroidRingEnd;\n },\n polygonEnd: function() {\n centroidStream.point = centroidPoint;\n centroidStream.lineStart = centroidLineStart;\n centroidStream.lineEnd = centroidLineEnd;\n },\n result: function() {\n var centroid = Z2 ? [X2 / Z2, Y2 / Z2]\n : Z1 ? [X1 / Z1, Y1 / Z1]\n : Z0 ? [X0 / Z0, Y0 / Z0]\n : [NaN, NaN];\n X0 = Y0 = Z0 =\n X1 = Y1 = Z1 =\n X2 = Y2 = Z2 = 0;\n return centroid;\n }\n};\n\nfunction centroidPoint(x, y) {\n X0 += x;\n Y0 += y;\n ++Z0;\n}\n\nfunction centroidLineStart() {\n centroidStream.point = centroidPointFirstLine;\n}\n\nfunction centroidPointFirstLine(x, y) {\n centroidStream.point = centroidPointLine;\n centroidPoint(x0 = x, y0 = y);\n}\n\nfunction centroidPointLine(x, y) {\n var dx = x - x0, dy = y - y0, z = sqrt(dx * dx + dy * dy);\n X1 += z * (x0 + x) / 2;\n Y1 += z * (y0 + y) / 2;\n Z1 += z;\n centroidPoint(x0 = x, y0 = y);\n}\n\nfunction centroidLineEnd() {\n centroidStream.point = centroidPoint;\n}\n\nfunction centroidRingStart() {\n centroidStream.point = centroidPointFirstRing;\n}\n\nfunction centroidRingEnd() {\n centroidPointRing(x00, y00);\n}\n\nfunction centroidPointFirstRing(x, y) {\n centroidStream.point = centroidPointRing;\n centroidPoint(x00 = x0 = x, y00 = y0 = y);\n}\n\nfunction centroidPointRing(x, y) {\n var dx = x - x0,\n dy = y - y0,\n z = sqrt(dx * dx + dy * dy);\n\n X1 += z * (x0 + x) / 2;\n Y1 += z * (y0 + y) / 2;\n Z1 += z;\n\n z = y0 * x - x0 * y;\n X2 += z * (x0 + x);\n Y2 += z * (y0 + y);\n Z2 += z * 3;\n centroidPoint(x0 = x, y0 = y);\n}\n\nexport default centroidStream;\n","import {tau} from \"../math.js\";\nimport noop from \"../noop.js\";\n\nexport default function PathContext(context) {\n this._context = context;\n}\n\nPathContext.prototype = {\n _radius: 4.5,\n pointRadius: function(_) {\n return this._radius = _, this;\n },\n polygonStart: function() {\n this._line = 0;\n },\n polygonEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._point = 0;\n },\n lineEnd: function() {\n if (this._line === 0) this._context.closePath();\n this._point = NaN;\n },\n point: function(x, y) {\n switch (this._point) {\n case 0: {\n this._context.moveTo(x, y);\n this._point = 1;\n break;\n }\n case 1: {\n this._context.lineTo(x, y);\n break;\n }\n default: {\n this._context.moveTo(x + this._radius, y);\n this._context.arc(x, y, this._radius, 0, tau);\n break;\n }\n }\n },\n result: noop\n};\n","import {Adder} from \"d3-array\";\nimport {sqrt} from \"../math.js\";\nimport noop from \"../noop.js\";\n\nvar lengthSum = new Adder(),\n lengthRing,\n x00,\n y00,\n x0,\n y0;\n\nvar lengthStream = {\n point: noop,\n lineStart: function() {\n lengthStream.point = lengthPointFirst;\n },\n lineEnd: function() {\n if (lengthRing) lengthPoint(x00, y00);\n lengthStream.point = noop;\n },\n polygonStart: function() {\n lengthRing = true;\n },\n polygonEnd: function() {\n lengthRing = null;\n },\n result: function() {\n var length = +lengthSum;\n lengthSum = new Adder();\n return length;\n }\n};\n\nfunction lengthPointFirst(x, y) {\n lengthStream.point = lengthPoint;\n x00 = x0 = x, y00 = y0 = y;\n}\n\nfunction lengthPoint(x, y) {\n x0 -= x, y0 -= y;\n lengthSum.add(sqrt(x0 * x0 + y0 * y0));\n x0 = x, y0 = y;\n}\n\nexport default lengthStream;\n","// Simple caching for constant-radius points.\nlet cacheDigits, cacheAppend, cacheRadius, cacheCircle;\n\nexport default class PathString {\n constructor(digits) {\n this._append = digits == null ? append : appendRound(digits);\n this._radius = 4.5;\n this._ = \"\";\n }\n pointRadius(_) {\n this._radius = +_;\n return this;\n }\n polygonStart() {\n this._line = 0;\n }\n polygonEnd() {\n this._line = NaN;\n }\n lineStart() {\n this._point = 0;\n }\n lineEnd() {\n if (this._line === 0) this._ += \"Z\";\n this._point = NaN;\n }\n point(x, y) {\n switch (this._point) {\n case 0: {\n this._append`M${x},${y}`;\n this._point = 1;\n break;\n }\n case 1: {\n this._append`L${x},${y}`;\n break;\n }\n default: {\n this._append`M${x},${y}`;\n if (this._radius !== cacheRadius || this._append !== cacheAppend) {\n const r = this._radius;\n const s = this._;\n this._ = \"\"; // stash the old string so we can cache the circle path fragment\n this._append`m0,${r}a${r},${r} 0 1,1 0,${-2 * r}a${r},${r} 0 1,1 0,${2 * r}z`;\n cacheRadius = r;\n cacheAppend = this._append;\n cacheCircle = this._;\n this._ = s;\n }\n this._ += cacheCircle;\n break;\n }\n }\n }\n result() {\n const result = this._;\n this._ = \"\";\n return result.length ? result : null;\n }\n}\n\nfunction append(strings) {\n let i = 1;\n this._ += strings[0];\n for (const j = strings.length; i < j; ++i) {\n this._ += arguments[i] + strings[i];\n }\n}\n\nfunction appendRound(digits) {\n const d = Math.floor(digits);\n if (!(d >= 0)) throw new RangeError(`invalid digits: ${digits}`);\n if (d > 15) return append;\n if (d !== cacheDigits) {\n const k = 10 ** d;\n cacheDigits = d;\n cacheAppend = function append(strings) {\n let i = 1;\n this._ += strings[0];\n for (const j = strings.length; i < j; ++i) {\n this._ += Math.round(arguments[i] * k) / k + strings[i];\n }\n };\n }\n return cacheAppend;\n}\n","import identity from \"../identity.js\";\nimport stream from \"../stream.js\";\nimport pathArea from \"./area.js\";\nimport pathBounds from \"./bounds.js\";\nimport pathCentroid from \"./centroid.js\";\nimport PathContext from \"./context.js\";\nimport pathMeasure from \"./measure.js\";\nimport PathString from \"./string.js\";\n\nexport default function(projection, context) {\n let digits = 3,\n pointRadius = 4.5,\n projectionStream,\n contextStream;\n\n function path(object) {\n if (object) {\n if (typeof pointRadius === \"function\") contextStream.pointRadius(+pointRadius.apply(this, arguments));\n stream(object, projectionStream(contextStream));\n }\n return contextStream.result();\n }\n\n path.area = function(object) {\n stream(object, projectionStream(pathArea));\n return pathArea.result();\n };\n\n path.measure = function(object) {\n stream(object, projectionStream(pathMeasure));\n return pathMeasure.result();\n };\n\n path.bounds = function(object) {\n stream(object, projectionStream(pathBounds));\n return pathBounds.result();\n };\n\n path.centroid = function(object) {\n stream(object, projectionStream(pathCentroid));\n return pathCentroid.result();\n };\n\n path.projection = function(_) {\n if (!arguments.length) return projection;\n projectionStream = _ == null ? (projection = null, identity) : (projection = _).stream;\n return path;\n };\n\n path.context = function(_) {\n if (!arguments.length) return context;\n contextStream = _ == null ? (context = null, new PathString(digits)) : new PathContext(context = _);\n if (typeof pointRadius !== \"function\") contextStream.pointRadius(pointRadius);\n return path;\n };\n\n path.pointRadius = function(_) {\n if (!arguments.length) return pointRadius;\n pointRadius = typeof _ === \"function\" ? _ : (contextStream.pointRadius(+_), +_);\n return path;\n };\n\n path.digits = function(_) {\n if (!arguments.length) return digits;\n if (_ == null) digits = null;\n else {\n const d = Math.floor(_);\n if (!(d >= 0)) throw new RangeError(`invalid digits: ${_}`);\n digits = d;\n }\n if (context === null) contextStream = new PathString(digits);\n return path;\n };\n\n return path.projection(projection).digits(digits).context(context);\n}\n","export default function(methods) {\n return {\n stream: transformer(methods)\n };\n}\n\nexport function transformer(methods) {\n return function(stream) {\n var s = new TransformStream;\n for (var key in methods) s[key] = methods[key];\n s.stream = stream;\n return s;\n };\n}\n\nfunction TransformStream() {}\n\nTransformStream.prototype = {\n constructor: TransformStream,\n point: function(x, y) { this.stream.point(x, y); },\n sphere: function() { this.stream.sphere(); },\n lineStart: function() { this.stream.lineStart(); },\n lineEnd: function() { this.stream.lineEnd(); },\n polygonStart: function() { this.stream.polygonStart(); },\n polygonEnd: function() { this.stream.polygonEnd(); }\n};\n","import {default as geoStream} from \"../stream.js\";\nimport boundsStream from \"../path/bounds.js\";\n\nfunction fit(projection, fitBounds, object) {\n var clip = projection.clipExtent && projection.clipExtent();\n projection.scale(150).translate([0, 0]);\n if (clip != null) projection.clipExtent(null);\n geoStream(object, projection.stream(boundsStream));\n fitBounds(boundsStream.result());\n if (clip != null) projection.clipExtent(clip);\n return projection;\n}\n\nexport function fitExtent(projection, extent, object) {\n return fit(projection, function(b) {\n var w = extent[1][0] - extent[0][0],\n h = extent[1][1] - extent[0][1],\n k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])),\n x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2,\n y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2;\n projection.scale(150 * k).translate([x, y]);\n }, object);\n}\n\nexport function fitSize(projection, size, object) {\n return fitExtent(projection, [[0, 0], size], object);\n}\n\nexport function fitWidth(projection, width, object) {\n return fit(projection, function(b) {\n var w = +width,\n k = w / (b[1][0] - b[0][0]),\n x = (w - k * (b[1][0] + b[0][0])) / 2,\n y = -k * b[0][1];\n projection.scale(150 * k).translate([x, y]);\n }, object);\n}\n\nexport function fitHeight(projection, height, object) {\n return fit(projection, function(b) {\n var h = +height,\n k = h / (b[1][1] - b[0][1]),\n x = -k * b[0][0],\n y = (h - k * (b[1][1] + b[0][1])) / 2;\n projection.scale(150 * k).translate([x, y]);\n }, object);\n}\n","import {cartesian} from \"../cartesian.js\";\nimport {abs, asin, atan2, cos, epsilon, radians, sqrt} from \"../math.js\";\nimport {transformer} from \"../transform.js\";\n\nvar maxDepth = 16, // maximum depth of subdivision\n cosMinDistance = cos(30 * radians); // cos(minimum angular distance)\n\nexport default function(project, delta2) {\n return +delta2 ? resample(project, delta2) : resampleNone(project);\n}\n\nfunction resampleNone(project) {\n return transformer({\n point: function(x, y) {\n x = project(x, y);\n this.stream.point(x[0], x[1]);\n }\n });\n}\n\nfunction resample(project, delta2) {\n\n function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) {\n var dx = x1 - x0,\n dy = y1 - y0,\n d2 = dx * dx + dy * dy;\n if (d2 > 4 * delta2 && depth--) {\n var a = a0 + a1,\n b = b0 + b1,\n c = c0 + c1,\n m = sqrt(a * a + b * b + c * c),\n phi2 = asin(c /= m),\n lambda2 = abs(abs(c) - 1) < epsilon || abs(lambda0 - lambda1) < epsilon ? (lambda0 + lambda1) / 2 : atan2(b, a),\n p = project(lambda2, phi2),\n x2 = p[0],\n y2 = p[1],\n dx2 = x2 - x0,\n dy2 = y2 - y0,\n dz = dy * dx2 - dx * dy2;\n if (dz * dz / d2 > delta2 // perpendicular projected distance\n || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end\n || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance\n resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream);\n stream.point(x2, y2);\n resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream);\n }\n }\n }\n return function(stream) {\n var lambda00, x00, y00, a00, b00, c00, // first point\n lambda0, x0, y0, a0, b0, c0; // previous point\n\n var resampleStream = {\n point: point,\n lineStart: lineStart,\n lineEnd: lineEnd,\n polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; },\n polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; }\n };\n\n function point(x, y) {\n x = project(x, y);\n stream.point(x[0], x[1]);\n }\n\n function lineStart() {\n x0 = NaN;\n resampleStream.point = linePoint;\n stream.lineStart();\n }\n\n function linePoint(lambda, phi) {\n var c = cartesian([lambda, phi]), p = project(lambda, phi);\n resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);\n stream.point(x0, y0);\n }\n\n function lineEnd() {\n resampleStream.point = point;\n stream.lineEnd();\n }\n\n function ringStart() {\n lineStart();\n resampleStream.point = ringPoint;\n resampleStream.lineEnd = ringEnd;\n }\n\n function ringPoint(lambda, phi) {\n linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;\n resampleStream.point = linePoint;\n }\n\n function ringEnd() {\n resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream);\n resampleStream.lineEnd = lineEnd;\n lineEnd();\n }\n\n return resampleStream;\n };\n}\n","import clipAntimeridian from \"../clip/antimeridian.js\";\nimport clipCircle from \"../clip/circle.js\";\nimport clipRectangle from \"../clip/rectangle.js\";\nimport compose from \"../compose.js\";\nimport identity from \"../identity.js\";\nimport {cos, degrees, radians, sin, sqrt} from \"../math.js\";\nimport {rotateRadians} from \"../rotation.js\";\nimport {transformer} from \"../transform.js\";\nimport {fitExtent, fitSize, fitWidth, fitHeight} from \"./fit.js\";\nimport resample from \"./resample.js\";\n\nvar transformRadians = transformer({\n point: function(x, y) {\n this.stream.point(x * radians, y * radians);\n }\n});\n\nfunction transformRotate(rotate) {\n return transformer({\n point: function(x, y) {\n var r = rotate(x, y);\n return this.stream.point(r[0], r[1]);\n }\n });\n}\n\nfunction scaleTranslate(k, dx, dy, sx, sy) {\n function transform(x, y) {\n x *= sx; y *= sy;\n return [dx + k * x, dy - k * y];\n }\n transform.invert = function(x, y) {\n return [(x - dx) / k * sx, (dy - y) / k * sy];\n };\n return transform;\n}\n\nfunction scaleTranslateRotate(k, dx, dy, sx, sy, alpha) {\n if (!alpha) return scaleTranslate(k, dx, dy, sx, sy);\n var cosAlpha = cos(alpha),\n sinAlpha = sin(alpha),\n a = cosAlpha * k,\n b = sinAlpha * k,\n ai = cosAlpha / k,\n bi = sinAlpha / k,\n ci = (sinAlpha * dy - cosAlpha * dx) / k,\n fi = (sinAlpha * dx + cosAlpha * dy) / k;\n function transform(x, y) {\n x *= sx; y *= sy;\n return [a * x - b * y + dx, dy - b * x - a * y];\n }\n transform.invert = function(x, y) {\n return [sx * (ai * x - bi * y + ci), sy * (fi - bi * x - ai * y)];\n };\n return transform;\n}\n\nexport default function projection(project) {\n return projectionMutator(function() { return project; })();\n}\n\nexport function projectionMutator(projectAt) {\n var project,\n k = 150, // scale\n x = 480, y = 250, // translate\n lambda = 0, phi = 0, // center\n deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, // pre-rotate\n alpha = 0, // post-rotate angle\n sx = 1, // reflectX\n sy = 1, // reflectX\n theta = null, preclip = clipAntimeridian, // pre-clip angle\n x0 = null, y0, x1, y1, postclip = identity, // post-clip extent\n delta2 = 0.5, // precision\n projectResample,\n projectTransform,\n projectRotateTransform,\n cache,\n cacheStream;\n\n function projection(point) {\n return projectRotateTransform(point[0] * radians, point[1] * radians);\n }\n\n function invert(point) {\n point = projectRotateTransform.invert(point[0], point[1]);\n return point && [point[0] * degrees, point[1] * degrees];\n }\n\n projection.stream = function(stream) {\n return cache && cacheStream === stream ? cache : cache = transformRadians(transformRotate(rotate)(preclip(projectResample(postclip(cacheStream = stream)))));\n };\n\n projection.preclip = function(_) {\n return arguments.length ? (preclip = _, theta = undefined, reset()) : preclip;\n };\n\n projection.postclip = function(_) {\n return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip;\n };\n\n projection.clipAngle = function(_) {\n return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees;\n };\n\n projection.clipExtent = function(_) {\n return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];\n };\n\n projection.scale = function(_) {\n return arguments.length ? (k = +_, recenter()) : k;\n };\n\n projection.translate = function(_) {\n return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y];\n };\n\n projection.center = function(_) {\n return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees, phi * degrees];\n };\n\n projection.rotate = function(_) {\n return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees, deltaPhi * degrees, deltaGamma * degrees];\n };\n\n projection.angle = function(_) {\n return arguments.length ? (alpha = _ % 360 * radians, recenter()) : alpha * degrees;\n };\n\n projection.reflectX = function(_) {\n return arguments.length ? (sx = _ ? -1 : 1, recenter()) : sx < 0;\n };\n\n projection.reflectY = function(_) {\n return arguments.length ? (sy = _ ? -1 : 1, recenter()) : sy < 0;\n };\n\n projection.precision = function(_) {\n return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt(delta2);\n };\n\n projection.fitExtent = function(extent, object) {\n return fitExtent(projection, extent, object);\n };\n\n projection.fitSize = function(size, object) {\n return fitSize(projection, size, object);\n };\n\n projection.fitWidth = function(width, object) {\n return fitWidth(projection, width, object);\n };\n\n projection.fitHeight = function(height, object) {\n return fitHeight(projection, height, object);\n };\n\n function recenter() {\n var center = scaleTranslateRotate(k, 0, 0, sx, sy, alpha).apply(null, project(lambda, phi)),\n transform = scaleTranslateRotate(k, x - center[0], y - center[1], sx, sy, alpha);\n rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma);\n projectTransform = compose(project, transform);\n projectRotateTransform = compose(rotate, projectTransform);\n projectResample = resample(projectTransform, delta2);\n return reset();\n }\n\n function reset() {\n cache = cacheStream = null;\n return projection;\n }\n\n return function() {\n project = projectAt.apply(this, arguments);\n projection.invert = project.invert && invert;\n return recenter();\n };\n}\n","import {asin, atan2, cos, sin, sqrt} from \"../math.js\";\n\nexport function azimuthalRaw(scale) {\n return function(x, y) {\n var cx = cos(x),\n cy = cos(y),\n k = scale(cx * cy);\n if (k === Infinity) return [2, 0];\n return [\n k * cy * sin(x),\n k * sin(y)\n ];\n }\n}\n\nexport function azimuthalInvert(angle) {\n return function(x, y) {\n var z = sqrt(x * x + y * y),\n c = angle(z),\n sc = sin(c),\n cc = cos(c);\n return [\n atan2(x * sc, z * cc),\n asin(z && y * sc / z)\n ];\n }\n}\n","import {asin, cos, epsilon, sin} from \"../math.js\";\nimport {azimuthalInvert} from \"./azimuthal.js\";\nimport projection from \"./index.js\";\n\nexport function orthographicRaw(x, y) {\n return [cos(y) * sin(x), sin(y)];\n}\n\northographicRaw.invert = azimuthalInvert(asin);\n\nexport default function() {\n return projection(orthographicRaw)\n .scale(249.5)\n .clipAngle(90 + epsilon);\n}\n","export default function(constructor, factory, prototype) {\n constructor.prototype = factory.prototype = prototype;\n prototype.constructor = constructor;\n}\n\nexport function extend(parent, definition) {\n var prototype = Object.create(parent.prototype);\n for (var key in definition) prototype[key] = definition[key];\n return prototype;\n}\n","import define, {extend} from \"./define.js\";\n\nexport function Color() {}\n\nexport var darker = 0.7;\nexport var brighter = 1 / darker;\n\nvar reI = \"\\\\s*([+-]?\\\\d+)\\\\s*\",\n reN = \"\\\\s*([+-]?(?:\\\\d*\\\\.)?\\\\d+(?:[eE][+-]?\\\\d+)?)\\\\s*\",\n reP = \"\\\\s*([+-]?(?:\\\\d*\\\\.)?\\\\d+(?:[eE][+-]?\\\\d+)?)%\\\\s*\",\n reHex = /^#([0-9a-f]{3,8})$/,\n reRgbInteger = new RegExp(`^rgb\\\\(${reI},${reI},${reI}\\\\)$`),\n reRgbPercent = new RegExp(`^rgb\\\\(${reP},${reP},${reP}\\\\)$`),\n reRgbaInteger = new RegExp(`^rgba\\\\(${reI},${reI},${reI},${reN}\\\\)$`),\n reRgbaPercent = new RegExp(`^rgba\\\\(${reP},${reP},${reP},${reN}\\\\)$`),\n reHslPercent = new RegExp(`^hsl\\\\(${reN},${reP},${reP}\\\\)$`),\n reHslaPercent = new RegExp(`^hsla\\\\(${reN},${reP},${reP},${reN}\\\\)$`);\n\nvar named = {\n aliceblue: 0xf0f8ff,\n antiquewhite: 0xfaebd7,\n aqua: 0x00ffff,\n aquamarine: 0x7fffd4,\n azure: 0xf0ffff,\n beige: 0xf5f5dc,\n bisque: 0xffe4c4,\n black: 0x000000,\n blanchedalmond: 0xffebcd,\n blue: 0x0000ff,\n blueviolet: 0x8a2be2,\n brown: 0xa52a2a,\n burlywood: 0xdeb887,\n cadetblue: 0x5f9ea0,\n chartreuse: 0x7fff00,\n chocolate: 0xd2691e,\n coral: 0xff7f50,\n cornflowerblue: 0x6495ed,\n cornsilk: 0xfff8dc,\n crimson: 0xdc143c,\n cyan: 0x00ffff,\n darkblue: 0x00008b,\n darkcyan: 0x008b8b,\n darkgoldenrod: 0xb8860b,\n darkgray: 0xa9a9a9,\n darkgreen: 0x006400,\n darkgrey: 0xa9a9a9,\n darkkhaki: 0xbdb76b,\n darkmagenta: 0x8b008b,\n darkolivegreen: 0x556b2f,\n darkorange: 0xff8c00,\n darkorchid: 0x9932cc,\n darkred: 0x8b0000,\n darksalmon: 0xe9967a,\n darkseagreen: 0x8fbc8f,\n darkslateblue: 0x483d8b,\n darkslategray: 0x2f4f4f,\n darkslategrey: 0x2f4f4f,\n darkturquoise: 0x00ced1,\n darkviolet: 0x9400d3,\n deeppink: 0xff1493,\n deepskyblue: 0x00bfff,\n dimgray: 0x696969,\n dimgrey: 0x696969,\n dodgerblue: 0x1e90ff,\n firebrick: 0xb22222,\n floralwhite: 0xfffaf0,\n forestgreen: 0x228b22,\n fuchsia: 0xff00ff,\n gainsboro: 0xdcdcdc,\n ghostwhite: 0xf8f8ff,\n gold: 0xffd700,\n goldenrod: 0xdaa520,\n gray: 0x808080,\n green: 0x008000,\n greenyellow: 0xadff2f,\n grey: 0x808080,\n honeydew: 0xf0fff0,\n hotpink: 0xff69b4,\n indianred: 0xcd5c5c,\n indigo: 0x4b0082,\n ivory: 0xfffff0,\n khaki: 0xf0e68c,\n lavender: 0xe6e6fa,\n lavenderblush: 0xfff0f5,\n lawngreen: 0x7cfc00,\n lemonchiffon: 0xfffacd,\n lightblue: 0xadd8e6,\n lightcoral: 0xf08080,\n lightcyan: 0xe0ffff,\n lightgoldenrodyellow: 0xfafad2,\n lightgray: 0xd3d3d3,\n lightgreen: 0x90ee90,\n lightgrey: 0xd3d3d3,\n lightpink: 0xffb6c1,\n lightsalmon: 0xffa07a,\n lightseagreen: 0x20b2aa,\n lightskyblue: 0x87cefa,\n lightslategray: 0x778899,\n lightslategrey: 0x778899,\n lightsteelblue: 0xb0c4de,\n lightyellow: 0xffffe0,\n lime: 0x00ff00,\n limegreen: 0x32cd32,\n linen: 0xfaf0e6,\n magenta: 0xff00ff,\n maroon: 0x800000,\n mediumaquamarine: 0x66cdaa,\n mediumblue: 0x0000cd,\n mediumorchid: 0xba55d3,\n mediumpurple: 0x9370db,\n mediumseagreen: 0x3cb371,\n mediumslateblue: 0x7b68ee,\n mediumspringgreen: 0x00fa9a,\n mediumturquoise: 0x48d1cc,\n mediumvioletred: 0xc71585,\n midnightblue: 0x191970,\n mintcream: 0xf5fffa,\n mistyrose: 0xffe4e1,\n moccasin: 0xffe4b5,\n navajowhite: 0xffdead,\n navy: 0x000080,\n oldlace: 0xfdf5e6,\n olive: 0x808000,\n olivedrab: 0x6b8e23,\n orange: 0xffa500,\n orangered: 0xff4500,\n orchid: 0xda70d6,\n palegoldenrod: 0xeee8aa,\n palegreen: 0x98fb98,\n paleturquoise: 0xafeeee,\n palevioletred: 0xdb7093,\n papayawhip: 0xffefd5,\n peachpuff: 0xffdab9,\n peru: 0xcd853f,\n pink: 0xffc0cb,\n plum: 0xdda0dd,\n powderblue: 0xb0e0e6,\n purple: 0x800080,\n rebeccapurple: 0x663399,\n red: 0xff0000,\n rosybrown: 0xbc8f8f,\n royalblue: 0x4169e1,\n saddlebrown: 0x8b4513,\n salmon: 0xfa8072,\n sandybrown: 0xf4a460,\n seagreen: 0x2e8b57,\n seashell: 0xfff5ee,\n sienna: 0xa0522d,\n silver: 0xc0c0c0,\n skyblue: 0x87ceeb,\n slateblue: 0x6a5acd,\n slategray: 0x708090,\n slategrey: 0x708090,\n snow: 0xfffafa,\n springgreen: 0x00ff7f,\n steelblue: 0x4682b4,\n tan: 0xd2b48c,\n teal: 0x008080,\n thistle: 0xd8bfd8,\n tomato: 0xff6347,\n turquoise: 0x40e0d0,\n violet: 0xee82ee,\n wheat: 0xf5deb3,\n white: 0xffffff,\n whitesmoke: 0xf5f5f5,\n yellow: 0xffff00,\n yellowgreen: 0x9acd32\n};\n\ndefine(Color, color, {\n copy(channels) {\n return Object.assign(new this.constructor, this, channels);\n },\n displayable() {\n return this.rgb().displayable();\n },\n hex: color_formatHex, // Deprecated! Use color.formatHex.\n formatHex: color_formatHex,\n formatHex8: color_formatHex8,\n formatHsl: color_formatHsl,\n formatRgb: color_formatRgb,\n toString: color_formatRgb\n});\n\nfunction color_formatHex() {\n return this.rgb().formatHex();\n}\n\nfunction color_formatHex8() {\n return this.rgb().formatHex8();\n}\n\nfunction color_formatHsl() {\n return hslConvert(this).formatHsl();\n}\n\nfunction color_formatRgb() {\n return this.rgb().formatRgb();\n}\n\nexport default function color(format) {\n var m, l;\n format = (format + \"\").trim().toLowerCase();\n return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000\n : l === 3 ? new Rgb((m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1) // #f00\n : l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000\n : l === 4 ? rgba((m >> 12 & 0xf) | (m >> 8 & 0xf0), (m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), (((m & 0xf) << 4) | (m & 0xf)) / 0xff) // #f000\n : null) // invalid hex\n : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)\n : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)\n : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)\n : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)\n : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)\n : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)\n : named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins\n : format === \"transparent\" ? new Rgb(NaN, NaN, NaN, 0)\n : null;\n}\n\nfunction rgbn(n) {\n return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);\n}\n\nfunction rgba(r, g, b, a) {\n if (a <= 0) r = g = b = NaN;\n return new Rgb(r, g, b, a);\n}\n\nexport function rgbConvert(o) {\n if (!(o instanceof Color)) o = color(o);\n if (!o) return new Rgb;\n o = o.rgb();\n return new Rgb(o.r, o.g, o.b, o.opacity);\n}\n\nexport function rgb(r, g, b, opacity) {\n return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);\n}\n\nexport function Rgb(r, g, b, opacity) {\n this.r = +r;\n this.g = +g;\n this.b = +b;\n this.opacity = +opacity;\n}\n\ndefine(Rgb, rgb, extend(Color, {\n brighter(k) {\n k = k == null ? brighter : Math.pow(brighter, k);\n return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);\n },\n darker(k) {\n k = k == null ? darker : Math.pow(darker, k);\n return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);\n },\n rgb() {\n return this;\n },\n clamp() {\n return new Rgb(clampi(this.r), clampi(this.g), clampi(this.b), clampa(this.opacity));\n },\n displayable() {\n return (-0.5 <= this.r && this.r < 255.5)\n && (-0.5 <= this.g && this.g < 255.5)\n && (-0.5 <= this.b && this.b < 255.5)\n && (0 <= this.opacity && this.opacity <= 1);\n },\n hex: rgb_formatHex, // Deprecated! Use color.formatHex.\n formatHex: rgb_formatHex,\n formatHex8: rgb_formatHex8,\n formatRgb: rgb_formatRgb,\n toString: rgb_formatRgb\n}));\n\nfunction rgb_formatHex() {\n return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}`;\n}\n\nfunction rgb_formatHex8() {\n return `#${hex(this.r)}${hex(this.g)}${hex(this.b)}${hex((isNaN(this.opacity) ? 1 : this.opacity) * 255)}`;\n}\n\nfunction rgb_formatRgb() {\n const a = clampa(this.opacity);\n return `${a === 1 ? \"rgb(\" : \"rgba(\"}${clampi(this.r)}, ${clampi(this.g)}, ${clampi(this.b)}${a === 1 ? \")\" : `, ${a})`}`;\n}\n\nfunction clampa(opacity) {\n return isNaN(opacity) ? 1 : Math.max(0, Math.min(1, opacity));\n}\n\nfunction clampi(value) {\n return Math.max(0, Math.min(255, Math.round(value) || 0));\n}\n\nfunction hex(value) {\n value = clampi(value);\n return (value < 16 ? \"0\" : \"\") + value.toString(16);\n}\n\nfunction hsla(h, s, l, a) {\n if (a <= 0) h = s = l = NaN;\n else if (l <= 0 || l >= 1) h = s = NaN;\n else if (s <= 0) h = NaN;\n return new Hsl(h, s, l, a);\n}\n\nexport function hslConvert(o) {\n if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);\n if (!(o instanceof Color)) o = color(o);\n if (!o) return new Hsl;\n if (o instanceof Hsl) return o;\n o = o.rgb();\n var r = o.r / 255,\n g = o.g / 255,\n b = o.b / 255,\n min = Math.min(r, g, b),\n max = Math.max(r, g, b),\n h = NaN,\n s = max - min,\n l = (max + min) / 2;\n if (s) {\n if (r === max) h = (g - b) / s + (g < b) * 6;\n else if (g === max) h = (b - r) / s + 2;\n else h = (r - g) / s + 4;\n s /= l < 0.5 ? max + min : 2 - max - min;\n h *= 60;\n } else {\n s = l > 0 && l < 1 ? 0 : h;\n }\n return new Hsl(h, s, l, o.opacity);\n}\n\nexport function hsl(h, s, l, opacity) {\n return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);\n}\n\nfunction Hsl(h, s, l, opacity) {\n this.h = +h;\n this.s = +s;\n this.l = +l;\n this.opacity = +opacity;\n}\n\ndefine(Hsl, hsl, extend(Color, {\n brighter(k) {\n k = k == null ? brighter : Math.pow(brighter, k);\n return new Hsl(this.h, this.s, this.l * k, this.opacity);\n },\n darker(k) {\n k = k == null ? darker : Math.pow(darker, k);\n return new Hsl(this.h, this.s, this.l * k, this.opacity);\n },\n rgb() {\n var h = this.h % 360 + (this.h < 0) * 360,\n s = isNaN(h) || isNaN(this.s) ? 0 : this.s,\n l = this.l,\n m2 = l + (l < 0.5 ? l : 1 - l) * s,\n m1 = 2 * l - m2;\n return new Rgb(\n hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),\n hsl2rgb(h, m1, m2),\n hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),\n this.opacity\n );\n },\n clamp() {\n return new Hsl(clamph(this.h), clampt(this.s), clampt(this.l), clampa(this.opacity));\n },\n displayable() {\n return (0 <= this.s && this.s <= 1 || isNaN(this.s))\n && (0 <= this.l && this.l <= 1)\n && (0 <= this.opacity && this.opacity <= 1);\n },\n formatHsl() {\n const a = clampa(this.opacity);\n return `${a === 1 ? \"hsl(\" : \"hsla(\"}${clamph(this.h)}, ${clampt(this.s) * 100}%, ${clampt(this.l) * 100}%${a === 1 ? \")\" : `, ${a})`}`;\n }\n}));\n\nfunction clamph(value) {\n value = (value || 0) % 360;\n return value < 0 ? value + 360 : value;\n}\n\nfunction clampt(value) {\n return Math.max(0, Math.min(1, value || 0));\n}\n\n/* From FvD 13.37, CSS Color Module Level 3 */\nfunction hsl2rgb(h, m1, m2) {\n return (h < 60 ? m1 + (m2 - m1) * h / 60\n : h < 180 ? m2\n : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60\n : m1) * 255;\n}\n","export default x => () => x;\n","import constant from \"./constant.js\";\n\nfunction linear(a, d) {\n return function(t) {\n return a + t * d;\n };\n}\n\nfunction exponential(a, b, y) {\n return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {\n return Math.pow(a + t * b, y);\n };\n}\n\nexport function hue(a, b) {\n var d = b - a;\n return d ? linear(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant(isNaN(a) ? b : a);\n}\n\nexport function gamma(y) {\n return (y = +y) === 1 ? nogamma : function(a, b) {\n return b - a ? exponential(a, b, y) : constant(isNaN(a) ? b : a);\n };\n}\n\nexport default function nogamma(a, b) {\n var d = b - a;\n return d ? linear(a, d) : constant(isNaN(a) ? b : a);\n}\n","import {rgb as colorRgb} from \"d3-color\";\nimport basis from \"./basis.js\";\nimport basisClosed from \"./basisClosed.js\";\nimport nogamma, {gamma} from \"./color.js\";\n\nexport default (function rgbGamma(y) {\n var color = gamma(y);\n\n function rgb(start, end) {\n var r = color((start = colorRgb(start)).r, (end = colorRgb(end)).r),\n g = color(start.g, end.g),\n b = color(start.b, end.b),\n opacity = nogamma(start.opacity, end.opacity);\n return function(t) {\n start.r = r(t);\n start.g = g(t);\n start.b = b(t);\n start.opacity = opacity(t);\n return start + \"\";\n };\n }\n\n rgb.gamma = rgbGamma;\n\n return rgb;\n})(1);\n\nfunction rgbSpline(spline) {\n return function(colors) {\n var n = colors.length,\n r = new Array(n),\n g = new Array(n),\n b = new Array(n),\n i, color;\n for (i = 0; i < n; ++i) {\n color = colorRgb(colors[i]);\n r[i] = color.r || 0;\n g[i] = color.g || 0;\n b[i] = color.b || 0;\n }\n r = spline(r);\n g = spline(g);\n b = spline(b);\n color.opacity = 1;\n return function(t) {\n color.r = r(t);\n color.g = g(t);\n color.b = b(t);\n return color + \"\";\n };\n };\n}\n\nexport var rgbBasis = rgbSpline(basis);\nexport var rgbBasisClosed = rgbSpline(basisClosed);\n","export default function(a, b) {\n if (!b) b = [];\n var n = a ? Math.min(b.length, a.length) : 0,\n c = b.slice(),\n i;\n return function(t) {\n for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t;\n return c;\n };\n}\n\nexport function isNumberArray(x) {\n return ArrayBuffer.isView(x) && !(x instanceof DataView);\n}\n","import value from \"./value.js\";\nimport numberArray, {isNumberArray} from \"./numberArray.js\";\n\nexport default function(a, b) {\n return (isNumberArray(b) ? numberArray : genericArray)(a, b);\n}\n\nexport function genericArray(a, b) {\n var nb = b ? b.length : 0,\n na = a ? Math.min(nb, a.length) : 0,\n x = new Array(na),\n c = new Array(nb),\n i;\n\n for (i = 0; i < na; ++i) x[i] = value(a[i], b[i]);\n for (; i < nb; ++i) c[i] = b[i];\n\n return function(t) {\n for (i = 0; i < na; ++i) c[i] = x[i](t);\n return c;\n };\n}\n","export default function(a, b) {\n var d = new Date;\n return a = +a, b = +b, function(t) {\n return d.setTime(a * (1 - t) + b * t), d;\n };\n}\n","export default function(a, b) {\n return a = +a, b = +b, function(t) {\n return a * (1 - t) + b * t;\n };\n}\n","import value from \"./value.js\";\n\nexport default function(a, b) {\n var i = {},\n c = {},\n k;\n\n if (a === null || typeof a !== \"object\") a = {};\n if (b === null || typeof b !== \"object\") b = {};\n\n for (k in b) {\n if (k in a) {\n i[k] = value(a[k], b[k]);\n } else {\n c[k] = b[k];\n }\n }\n\n return function(t) {\n for (k in i) c[k] = i[k](t);\n return c;\n };\n}\n","import number from \"./number.js\";\n\nvar reA = /[-+]?(?:\\d+\\.?\\d*|\\.?\\d+)(?:[eE][-+]?\\d+)?/g,\n reB = new RegExp(reA.source, \"g\");\n\nfunction zero(b) {\n return function() {\n return b;\n };\n}\n\nfunction one(b) {\n return function(t) {\n return b(t) + \"\";\n };\n}\n\nexport default function(a, b) {\n var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b\n am, // current match in a\n bm, // current match in b\n bs, // string preceding current number in b, if any\n i = -1, // index in s\n s = [], // string constants and placeholders\n q = []; // number interpolators\n\n // Coerce inputs to strings.\n a = a + \"\", b = b + \"\";\n\n // Interpolate pairs of numbers in a & b.\n while ((am = reA.exec(a))\n && (bm = reB.exec(b))) {\n if ((bs = bm.index) > bi) { // a string precedes the next number in b\n bs = b.slice(bi, bs);\n if (s[i]) s[i] += bs; // coalesce with previous string\n else s[++i] = bs;\n }\n if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match\n if (s[i]) s[i] += bm; // coalesce with previous string\n else s[++i] = bm;\n } else { // interpolate non-matching numbers\n s[++i] = null;\n q.push({i: i, x: number(am, bm)});\n }\n bi = reB.lastIndex;\n }\n\n // Add remains of b.\n if (bi < b.length) {\n bs = b.slice(bi);\n if (s[i]) s[i] += bs; // coalesce with previous string\n else s[++i] = bs;\n }\n\n // Special optimization for only a single match.\n // Otherwise, interpolate each of the numbers and rejoin the string.\n return s.length < 2 ? (q[0]\n ? one(q[0].x)\n : zero(b))\n : (b = q.length, function(t) {\n for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);\n return s.join(\"\");\n });\n}\n","import {color} from \"d3-color\";\nimport rgb from \"./rgb.js\";\nimport {genericArray} from \"./array.js\";\nimport date from \"./date.js\";\nimport number from \"./number.js\";\nimport object from \"./object.js\";\nimport string from \"./string.js\";\nimport constant from \"./constant.js\";\nimport numberArray, {isNumberArray} from \"./numberArray.js\";\n\nexport default function(a, b) {\n var t = typeof b, c;\n return b == null || t === \"boolean\" ? constant(b)\n : (t === \"number\" ? number\n : t === \"string\" ? ((c = color(b)) ? (b = c, rgb) : string)\n : b instanceof color ? rgb\n : b instanceof Date ? date\n : isNumberArray(b) ? numberArray\n : Array.isArray(b) ? genericArray\n : typeof b.valueOf !== \"function\" && typeof b.toString !== \"function\" || isNaN(b) ? object\n : number)(a, b);\n}\n","import React, {useCallback, useEffect, useMemo, useRef} from 'react';\nimport data from '../data/land-110m.json';\nimport {array, func, number, string} from 'prop-types';\nimport {easeCubicInOut} from 'd3-ease';\nimport {feature} from 'topojson-client';\nimport {geoCircle, geoOrthographic, geoPath} from 'd3-geo';\nimport {interpolate} from 'd3-interpolate';\n\nconst land = feature(data, data.objects.land);\n\nconst Globe = ({\n center = [0, 0],\n diameter = 60,\n landColor = '#191919',\n markerColor = '#009da5',\n markerRadius = 6,\n oceanColor = '#f2f2f2',\n onClick,\n rotationTime = 1000,\n}) => {\n const canvasRef = useRef();\n const transition = useRef();\n const renderPath = useRef();\n const centerRef = useRef(center);\n\n const style = {cursor: onClick ? 'pointer' : 'auto'};\n\n const radius = useMemo(() => diameter / 2, [diameter]);\n\n const projection = useMemo(\n () =>\n geoOrthographic()\n .scale(radius - 2)\n .translate([radius, radius])\n .rotate(centerRef.current.map(value => -value))\n .clipAngle(90),\n [radius],\n );\n\n const renderGlobe = useCallback(() => {\n if (!canvasRef.current) {\n if (transition.current) {\n cancelAnimationFrame(transition.current);\n }\n return;\n }\n\n const context = canvasRef.current.getContext('2d');\n context.clearRect(0, 0, canvasRef.current.width, canvasRef.current.height);\n\n context.fillStyle = oceanColor;\n context.beginPath();\n renderPath.current({type: 'Sphere'});\n context.fill();\n\n context.fillStyle = landColor;\n context.beginPath();\n renderPath.current(land);\n context.fill();\n\n const circle = geoCircle().center(center).radius(markerRadius)();\n context.fillStyle = markerColor;\n context.beginPath();\n renderPath.current(circle);\n context.fill();\n }, [center, landColor, markerColor, markerRadius, oceanColor, renderPath]);\n\n useEffect(() => {\n if (canvasRef.current) {\n renderPath.current = geoPath()\n .projection(projection)\n .context(canvasRef.current.getContext('2d'));\n renderGlobe();\n }\n }, [projection, renderGlobe]);\n\n useEffect(() => {\n const start = Date.now();\n const duration = rotationTime;\n\n const getRotation = interpolate(\n projection.rotate(),\n center.map(value => -value),\n );\n\n const updateRotation = () => {\n const progress = Math.min(1, (Date.now() - start) / duration);\n projection.rotate(getRotation(easeCubicInOut(progress)));\n renderGlobe();\n if (progress < 1) {\n transition.current = requestAnimationFrame(updateRotation);\n }\n };\n\n if (transition.current) {\n cancelAnimationFrame(transition.current);\n transition.current = null;\n }\n\n transition.current = requestAnimationFrame(updateRotation);\n }, [projection, center, rotationTime, renderGlobe]);\n\n return (\n
\n \n
\n );\n};\n\nGlobe.propTypes = {\n center: array,\n diameter: number,\n landColor: string,\n markerColor: string,\n markerRadius: number,\n oceanColor: string,\n onClick: func,\n rotationTime: number,\n};\n\nexport default Globe;\n","import React from 'react';\n\nexport default function (props) {\n return (\n \n \n \n );\n}\n","import React from 'react';\n\nexport default function (props) {\n return (\n \n \n \n );\n}\n","import React from 'react';\n\nexport default function (props) {\n return (\n \n \n \n );\n}\n","import {styled} from '@mui/material';\nimport map from 'lodash/map';\nimport PropTypes from 'prop-types';\nimport React, {Component} from 'react';\nimport CompareSlider from '../../components/compare-slider.jsx';\nimport FrameLabel from '../../components/frame-label.jsx';\nimport FrameLogo from '../../components/frame-logo.jsx';\nimport {ASSETS_URL} from '../../config.js';\nimport {STORY_WIDTH} from '../../constants.js';\n\nconst Container = styled('div')(({theme}) => ({\n color: theme.palette.common.white,\n userSelect: 'none',\n position: 'relative',\n}));\n\nconst StyledImage = styled('img')({\n display: 'block',\n maxWidth: '100%',\n pointerEvents: 'none',\n});\n\nconst Comparate = styled('div')({\n height: '100%',\n backgroundSize: 'cover',\n backgroundPosition: 'right',\n position: 'absolute',\n right: 0,\n top: 0,\n});\n\nclass Compare extends Component {\n static propTypes = {\n story: PropTypes.object.isRequired,\n };\n\n state = {\n position: 0.5,\n scale: 1,\n };\n\n componentDidMount() {\n window.addEventListener('resize', this.onResize);\n this.onResize();\n }\n\n componentWillUnmount() {\n window.removeEventListener('resize', this.onResize);\n }\n\n onResize = () =>\n this.setState({\n scale: Math.min(1, window.innerWidth / STORY_WIDTH),\n });\n\n onSliderChange = value => this.setState({position: value});\n\n render() {\n const baseUrl = `${ASSETS_URL}/${this.props.story.id}`;\n return (\n \n \n \n
\n {this.props.story.frames.map(frame => {\n const date = new Date(frame.date);\n return (\n \n {date.toLocaleDateString()}\n \n );\n })}\n
\n \n \n
\n );\n }\n}\n\nexport default Compare;\n","import {ButtonBase} from '@mui/material';\nimport Grid from '@mui/material/Grid2';\nimport {styled} from '@mui/system';\nimport PropTypes from 'prop-types';\nimport React from 'react';\n\nconst ButtonBaseComponent = styled(ButtonBase)({\n width: '100%',\n paddingTop: '100%',\n position: 'relative',\n});\n\nconst windowOptions = {\n width: 600,\n height: 400,\n};\n\nconst ShareButton = ({\n icon,\n query,\n url,\n name,\n trackEvent,\n href,\n onClick,\n color,\n iconColor,\n ...otherProps\n}) => {\n const handleClick = () => {\n const queryString = new URLSearchParams(query).toString();\n\n const pairs = [];\n for (const key in windowOptions) {\n pairs.push(`${key}=${windowOptions[key]}`);\n }\n window.open(`${url}?${queryString}`, 'share', pairs.join(','));\n trackEvent(`${name} button clicked`);\n };\n\n const Icon = React.cloneElement(icon, {\n sx: {\n width: '30%',\n height: '30%',\n fill: theme => iconColor || theme.palette.common.white,\n position: 'absolute',\n top: '50%',\n left: '50%',\n transform: 'translate(-50%, -50%)',\n ...icon.sx,\n },\n });\n\n return (\n \n \n {Icon}\n \n \n );\n};\n\nShareButton.propTypes = {\n color: PropTypes.string.isRequired,\n href: PropTypes.string,\n icon: PropTypes.oneOfType([PropTypes.func, PropTypes.object]).isRequired,\n iconColor: PropTypes.string,\n name: PropTypes.string,\n onClick: PropTypes.func,\n url: PropTypes.string,\n query: PropTypes.object,\n trackEvent: PropTypes.func,\n dataCy: PropTypes.string,\n};\n\nexport default ShareButton;\n","import React from 'react';\n\nexport default function (props) {\n return (\n \n \n \n );\n}\n","import {SvgIcon} from '@mui/material';\nimport React from 'react';\nimport XLogo from '../../../assets/icons/x-logo.jsx';\n\nconst XIcon = props => (\n \n \n \n);\n\nexport default XIcon;\n","import DialogTitle from '@apps-common/ui-components/DialogTitle.jsx';\nimport EmailIcon from '@mui/icons-material/Email';\nimport FacebookIcon from '@mui/icons-material/Facebook';\nimport LinkIcon from '@mui/icons-material/Link';\nimport LinkedInIcon from '@mui/icons-material/LinkedIn';\nimport {\n Button,\n Dialog,\n DialogActions,\n DialogContent,\n TextField,\n} from '@mui/material';\nimport Grid from '@mui/material/Grid2';\nimport PropTypes from 'prop-types';\nimport React, {Component} from 'react';\nimport {PLAYER_URL} from '../../../config.js';\nimport {theme} from '../../../styles.js';\nimport ShareButton from './share-button.jsx';\nimport XIcon from './x-logo.jsx';\n\nconst baseText = 'Check out this story of change I made with imagery from';\n\nclass ShareDialog extends Component {\n static propTypes = {\n onClose: PropTypes.func.isRequired,\n open: PropTypes.bool.isRequired,\n story: PropTypes.object.isRequired,\n trackEvent: PropTypes.func.isRequired,\n };\n\n state = {\n copyLabelShown: false,\n };\n\n componentWillUnmount() {\n clearTimeout(this.timeout);\n }\n\n onEmailClick = () => this.props.trackEvent('Email button clicked');\n\n onLinkClick = () => {\n this.textField.focus();\n this.textField.select();\n document.execCommand('copy');\n this.props.trackEvent('Copy link button clicked');\n\n clearTimeout(this.timeout);\n this.setState({copyLabelShown: true}, () => {\n this.timeout = setTimeout(this.hideCopyLabel, 3000);\n });\n };\n\n hideCopyLabel = () => this.setState({copyLabelShown: false});\n\n renderEmailButton(url) {\n const params = new URLSearchParams({\n subject: this.props.story.title,\n body: `${baseText} Planet: ${url}`,\n });\n\n return (\n }\n color={theme.palette.grey[500]}\n href={`mailto:?${params.toString()}`}\n onClick={this.onEmailClick}\n data-cy=\"Email-share-button\"\n />\n );\n }\n\n renderSocialMediaButton(props) {\n return (\n \n );\n }\n\n render() {\n const url = `${PLAYER_URL}/${this.props.story.id}`;\n return (\n \n \n \n \n {this.renderSocialMediaButton({\n name: 'Twitter',\n icon: ,\n color: '#000000',\n url: 'https://twitter.com/intent/tweet',\n query: {\n url,\n text: `${baseText} @planet`,\n hashtags: 'PlanetStories',\n },\n })}\n {this.renderSocialMediaButton({\n name: 'Facebook',\n icon: ,\n color: '#3b5998',\n url: 'https://www.facebook.com/sharer.php',\n query: {u: url},\n })}\n {this.renderSocialMediaButton({\n name: 'LinkedIn',\n icon: ,\n color: '#0077b5',\n url: 'https://www.linkedin.com/shareArticle',\n query: {\n url,\n mini: true,\n title: this.props.story.title,\n summary: `${baseText} @Planet`,\n },\n })}\n {this.renderEmailButton(url)}\n }\n color={theme.palette.grey[200]}\n iconColor={theme.palette.grey[800]}\n onClick={this.onLinkClick}\n />\n \n
\n {\n this.textField = node;\n }}\n data-cy=\"story-url\"\n />\n
\n \n \n Done\n \n \n \n );\n }\n}\n\nexport default ShareDialog;\n","import {styled} from '@mui/material';\nimport PropTypes from 'prop-types';\nimport React, {Component} from 'react';\nimport {ASSETS_URL} from '../../config.js';\nimport {STORY_WIDTH} from '../../constants.js';\n\nconst StyledVideo = styled('video')({\n width: '100%',\n height: '100%',\n maxWidth: STORY_WIDTH,\n});\n\nclass Video extends Component {\n static propTypes = {\n story: PropTypes.object.isRequired,\n trackEvent: PropTypes.func.isRequired,\n };\n\n onEnded = event => {\n event.target.play();\n this.props.trackEvent('Loop completed');\n };\n\n render() {\n return (\n \n );\n }\n}\n\nexport default Video;\n","import Globe from '@apps-common/react-globe';\nimport DialogTitle from '@apps-common/ui-components/DialogTitle.jsx';\nimport CodeIcon from '@mui/icons-material/Code';\nimport PublicIcon from '@mui/icons-material/Public';\nimport ShareIcon from '@mui/icons-material/Share';\nimport {\n Button,\n CircularProgress,\n Collapse,\n Dialog,\n DialogActions,\n DialogContent,\n DialogContentText,\n Divider,\n Link,\n TextField,\n Tooltip,\n Typography,\n styled,\n useTheme,\n} from '@mui/material';\nimport {useQuery} from '@tanstack/react-query';\nimport {format, parseISO} from 'date-fns';\nimport React, {Fragment, useEffect, useState} from 'react';\nimport {Helmet} from 'react-helmet';\nimport {useParams} from 'react-router';\nimport {getStory} from '../../api/stories.js';\nimport BYIcon from '../../assets/icons/by.jsx';\nimport CCIcon from '../../assets/icons/cc.jsx';\nimport NCIcon from '../../assets/icons/nc.jsx';\nimport {ASSETS_URL, COMPARE_URL, EXPLORER_URL} from '../../config.js';\nimport {\n ASPECT_RATIO,\n PENDING_STATUSES,\n STORY_WIDTH,\n VIEWER_EVENT,\n} from '../../constants.js';\nimport {latLonToString} from '../../util/lat-lon.js';\nimport NotFound from '../not-found.jsx';\nimport Compare from './compare.jsx';\nimport ShareDialog from './share-dialog/index.jsx';\nimport Video from './video.jsx';\n\nconst Loading = styled('div')({\n margin: 'auto',\n textAlign: 'center',\n});\n\nconst LoadingText = styled(props => (\n \n))(({theme}) => ({\n marginTop: theme.spacing(),\n}));\n\nconst Media = styled('div')(({theme}) => ({\n display: 'flex',\n justifyContent: 'center',\n backgroundColor: theme.palette.common.black,\n}));\n\nconst Pending = styled('div')({\n width: '100%',\n maxWidth: STORY_WIDTH,\n position: 'relative',\n '&::before': {\n content: \"''\",\n display: 'block',\n paddingTop: `${(1 / ASPECT_RATIO) * 100}%`,\n },\n});\n\nconst PendingInner = styled('div')(({theme}) => ({\n color: theme.palette.grey[100],\n textAlign: 'center',\n position: 'absolute',\n top: '50%',\n left: '50%',\n transform: 'translate(-50%, -50%)',\n}));\n\nconst Container = styled('div')(({theme}) => ({\n display: 'flex',\n flexDirection: 'column',\n flexGrow: 1,\n width: '100%',\n maxWidth: theme.breakpoints.values.md,\n margin: '0 auto',\n padding: theme.spacing(3),\n backgroundColor: (theme.vars || theme).palette.background.paper,\n [theme.breakpoints.down('sm')]: {\n padding: theme.spacing(2),\n },\n}));\n\nconst Title = styled('div')(({theme}) => ({\n display: 'flex',\n alignItems: 'flex-start',\n marginBottom: theme.spacing(),\n canvas: {\n display: 'block',\n },\n}));\n\nconst TitleText = styled('div')(({theme}) => ({\n margin: 'auto 0',\n marginLeft: theme.spacing(),\n}));\n\nconst HiddenOnMobile = styled('span')(({theme}) => ({\n [theme.breakpoints.down('sm')]: {\n display: 'none',\n },\n}));\n\nconst Subheading = styled('div')(({theme}) => ({\n display: 'flex',\n alignItems: 'center',\n justifyContent: 'space-between',\n color: (theme.vars || theme).palette.text.secondary,\n}));\n\nconst SubheadingButton = styled(props =>