Index: node_modules/d3-scale/src/band.js
===================================================================
--- node_modules/d3-scale/src/band.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/band.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,101 @@
+import {range as sequence} from "d3-array";
+import {initRange} from "./init.js";
+import ordinal from "./ordinal.js";
+
+export default function band() {
+  var scale = ordinal().unknown(undefined),
+      domain = scale.domain,
+      ordinalRange = scale.range,
+      r0 = 0,
+      r1 = 1,
+      step,
+      bandwidth,
+      round = false,
+      paddingInner = 0,
+      paddingOuter = 0,
+      align = 0.5;
+
+  delete scale.unknown;
+
+  function rescale() {
+    var n = domain().length,
+        reverse = r1 < r0,
+        start = reverse ? r1 : r0,
+        stop = reverse ? r0 : r1;
+    step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2);
+    if (round) step = Math.floor(step);
+    start += (stop - start - step * (n - paddingInner)) * align;
+    bandwidth = step * (1 - paddingInner);
+    if (round) start = Math.round(start), bandwidth = Math.round(bandwidth);
+    var values = sequence(n).map(function(i) { return start + step * i; });
+    return ordinalRange(reverse ? values.reverse() : values);
+  }
+
+  scale.domain = function(_) {
+    return arguments.length ? (domain(_), rescale()) : domain();
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? ([r0, r1] = _, r0 = +r0, r1 = +r1, rescale()) : [r0, r1];
+  };
+
+  scale.rangeRound = function(_) {
+    return [r0, r1] = _, r0 = +r0, r1 = +r1, round = true, rescale();
+  };
+
+  scale.bandwidth = function() {
+    return bandwidth;
+  };
+
+  scale.step = function() {
+    return step;
+  };
+
+  scale.round = function(_) {
+    return arguments.length ? (round = !!_, rescale()) : round;
+  };
+
+  scale.padding = function(_) {
+    return arguments.length ? (paddingInner = Math.min(1, paddingOuter = +_), rescale()) : paddingInner;
+  };
+
+  scale.paddingInner = function(_) {
+    return arguments.length ? (paddingInner = Math.min(1, _), rescale()) : paddingInner;
+  };
+
+  scale.paddingOuter = function(_) {
+    return arguments.length ? (paddingOuter = +_, rescale()) : paddingOuter;
+  };
+
+  scale.align = function(_) {
+    return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align;
+  };
+
+  scale.copy = function() {
+    return band(domain(), [r0, r1])
+        .round(round)
+        .paddingInner(paddingInner)
+        .paddingOuter(paddingOuter)
+        .align(align);
+  };
+
+  return initRange.apply(rescale(), arguments);
+}
+
+function pointish(scale) {
+  var copy = scale.copy;
+
+  scale.padding = scale.paddingOuter;
+  delete scale.paddingInner;
+  delete scale.paddingOuter;
+
+  scale.copy = function() {
+    return pointish(copy());
+  };
+
+  return scale;
+}
+
+export function point() {
+  return pointish(band.apply(null, arguments).paddingInner(1));
+}
Index: node_modules/d3-scale/src/colors.js
===================================================================
--- node_modules/d3-scale/src/colors.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/colors.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,5 @@
+export default function colors(s) {
+  return s.match(/.{6}/g).map(function(x) {
+    return "#" + x;
+  });
+}
Index: node_modules/d3-scale/src/constant.js
===================================================================
--- node_modules/d3-scale/src/constant.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/constant.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,5 @@
+export default function constants(x) {
+  return function() {
+    return x;
+  };
+}
Index: node_modules/d3-scale/src/continuous.js
===================================================================
--- node_modules/d3-scale/src/continuous.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/continuous.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,125 @@
+import {bisect} from "d3-array";
+import {interpolate as interpolateValue, interpolateNumber, interpolateRound} from "d3-interpolate";
+import constant from "./constant.js";
+import number from "./number.js";
+
+var unit = [0, 1];
+
+export function identity(x) {
+  return x;
+}
+
+function normalize(a, b) {
+  return (b -= (a = +a))
+      ? function(x) { return (x - a) / b; }
+      : constant(isNaN(b) ? NaN : 0.5);
+}
+
+function clamper(a, b) {
+  var t;
+  if (a > b) t = a, a = b, b = t;
+  return function(x) { return Math.max(a, Math.min(b, x)); };
+}
+
+// normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].
+// interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b].
+function bimap(domain, range, interpolate) {
+  var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1];
+  if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0);
+  else d0 = normalize(d0, d1), r0 = interpolate(r0, r1);
+  return function(x) { return r0(d0(x)); };
+}
+
+function polymap(domain, range, interpolate) {
+  var j = Math.min(domain.length, range.length) - 1,
+      d = new Array(j),
+      r = new Array(j),
+      i = -1;
+
+  // Reverse descending domains.
+  if (domain[j] < domain[0]) {
+    domain = domain.slice().reverse();
+    range = range.slice().reverse();
+  }
+
+  while (++i < j) {
+    d[i] = normalize(domain[i], domain[i + 1]);
+    r[i] = interpolate(range[i], range[i + 1]);
+  }
+
+  return function(x) {
+    var i = bisect(domain, x, 1, j) - 1;
+    return r[i](d[i](x));
+  };
+}
+
+export function copy(source, target) {
+  return target
+      .domain(source.domain())
+      .range(source.range())
+      .interpolate(source.interpolate())
+      .clamp(source.clamp())
+      .unknown(source.unknown());
+}
+
+export function transformer() {
+  var domain = unit,
+      range = unit,
+      interpolate = interpolateValue,
+      transform,
+      untransform,
+      unknown,
+      clamp = identity,
+      piecewise,
+      output,
+      input;
+
+  function rescale() {
+    var n = Math.min(domain.length, range.length);
+    if (clamp !== identity) clamp = clamper(domain[0], domain[n - 1]);
+    piecewise = n > 2 ? polymap : bimap;
+    output = input = null;
+    return scale;
+  }
+
+  function scale(x) {
+    return x == null || isNaN(x = +x) ? unknown : (output || (output = piecewise(domain.map(transform), range, interpolate)))(transform(clamp(x)));
+  }
+
+  scale.invert = function(y) {
+    return clamp(untransform((input || (input = piecewise(range, domain.map(transform), interpolateNumber)))(y)));
+  };
+
+  scale.domain = function(_) {
+    return arguments.length ? (domain = Array.from(_, number), rescale()) : domain.slice();
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? (range = Array.from(_), rescale()) : range.slice();
+  };
+
+  scale.rangeRound = function(_) {
+    return range = Array.from(_), interpolate = interpolateRound, rescale();
+  };
+
+  scale.clamp = function(_) {
+    return arguments.length ? (clamp = _ ? true : identity, rescale()) : clamp !== identity;
+  };
+
+  scale.interpolate = function(_) {
+    return arguments.length ? (interpolate = _, rescale()) : interpolate;
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  return function(t, u) {
+    transform = t, untransform = u;
+    return rescale();
+  };
+}
+
+export default function continuous() {
+  return transformer()(identity, identity);
+}
Index: node_modules/d3-scale/src/diverging.js
===================================================================
--- node_modules/d3-scale/src/diverging.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/diverging.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,104 @@
+import {interpolate, interpolateRound, piecewise} from "d3-interpolate";
+import {identity} from "./continuous.js";
+import {initInterpolator} from "./init.js";
+import {linearish} from "./linear.js";
+import {loggish} from "./log.js";
+import {copy} from "./sequential.js";
+import {symlogish} from "./symlog.js";
+import {powish} from "./pow.js";
+
+function transformer() {
+  var x0 = 0,
+      x1 = 0.5,
+      x2 = 1,
+      s = 1,
+      t0,
+      t1,
+      t2,
+      k10,
+      k21,
+      interpolator = identity,
+      transform,
+      clamp = false,
+      unknown;
+
+  function scale(x) {
+    return isNaN(x = +x) ? unknown : (x = 0.5 + ((x = +transform(x)) - t1) * (s * x < s * t1 ? k10 : k21), interpolator(clamp ? Math.max(0, Math.min(1, x)) : x));
+  }
+
+  scale.domain = function(_) {
+    return arguments.length ? ([x0, x1, x2] = _, t0 = transform(x0 = +x0), t1 = transform(x1 = +x1), t2 = transform(x2 = +x2), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1), s = t1 < t0 ? -1 : 1, scale) : [x0, x1, x2];
+  };
+
+  scale.clamp = function(_) {
+    return arguments.length ? (clamp = !!_, scale) : clamp;
+  };
+
+  scale.interpolator = function(_) {
+    return arguments.length ? (interpolator = _, scale) : interpolator;
+  };
+
+  function range(interpolate) {
+    return function(_) {
+      var r0, r1, r2;
+      return arguments.length ? ([r0, r1, r2] = _, interpolator = piecewise(interpolate, [r0, r1, r2]), scale) : [interpolator(0), interpolator(0.5), interpolator(1)];
+    };
+  }
+
+  scale.range = range(interpolate);
+
+  scale.rangeRound = range(interpolateRound);
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  return function(t) {
+    transform = t, t0 = t(x0), t1 = t(x1), t2 = t(x2), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1), s = t1 < t0 ? -1 : 1;
+    return scale;
+  };
+}
+
+export default function diverging() {
+  var scale = linearish(transformer()(identity));
+
+  scale.copy = function() {
+    return copy(scale, diverging());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function divergingLog() {
+  var scale = loggish(transformer()).domain([0.1, 1, 10]);
+
+  scale.copy = function() {
+    return copy(scale, divergingLog()).base(scale.base());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function divergingSymlog() {
+  var scale = symlogish(transformer());
+
+  scale.copy = function() {
+    return copy(scale, divergingSymlog()).constant(scale.constant());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function divergingPow() {
+  var scale = powish(transformer());
+
+  scale.copy = function() {
+    return copy(scale, divergingPow()).exponent(scale.exponent());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function divergingSqrt() {
+  return divergingPow.apply(null, arguments).exponent(0.5);
+}
Index: node_modules/d3-scale/src/identity.js
===================================================================
--- node_modules/d3-scale/src/identity.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/identity.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,28 @@
+import {linearish} from "./linear.js";
+import number from "./number.js";
+
+export default function identity(domain) {
+  var unknown;
+
+  function scale(x) {
+    return x == null || isNaN(x = +x) ? unknown : x;
+  }
+
+  scale.invert = scale;
+
+  scale.domain = scale.range = function(_) {
+    return arguments.length ? (domain = Array.from(_, number), scale) : domain.slice();
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  scale.copy = function() {
+    return identity(domain).unknown(unknown);
+  };
+
+  domain = arguments.length ? Array.from(domain, number) : [0, 1];
+
+  return linearish(scale);
+}
Index: node_modules/d3-scale/src/index.js
===================================================================
--- node_modules/d3-scale/src/index.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/index.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,78 @@
+export {
+  default as scaleBand,
+  point as scalePoint
+} from "./band.js";
+
+export {
+  default as scaleIdentity
+} from "./identity.js";
+
+export {
+  default as scaleLinear
+} from "./linear.js";
+
+export {
+  default as scaleLog
+} from "./log.js";
+
+export {
+  default as scaleSymlog
+} from "./symlog.js";
+
+export {
+  default as scaleOrdinal,
+  implicit as scaleImplicit
+} from "./ordinal.js";
+
+export {
+  default as scalePow,
+  sqrt as scaleSqrt
+} from "./pow.js";
+
+export {
+  default as scaleRadial
+} from "./radial.js";
+
+export {
+  default as scaleQuantile
+} from "./quantile.js";
+
+export {
+  default as scaleQuantize
+} from "./quantize.js";
+
+export {
+  default as scaleThreshold
+} from "./threshold.js";
+
+export {
+  default as scaleTime
+} from "./time.js";
+
+export {
+  default as scaleUtc
+} from "./utcTime.js";
+
+export {
+  default as scaleSequential,
+  sequentialLog as scaleSequentialLog,
+  sequentialPow as scaleSequentialPow,
+  sequentialSqrt as scaleSequentialSqrt,
+  sequentialSymlog as scaleSequentialSymlog
+} from "./sequential.js";
+
+export {
+  default as scaleSequentialQuantile
+} from "./sequentialQuantile.js";
+
+export {
+  default as scaleDiverging,
+  divergingLog as scaleDivergingLog,
+  divergingPow as scaleDivergingPow,
+  divergingSqrt as scaleDivergingSqrt,
+  divergingSymlog as scaleDivergingSymlog
+} from "./diverging.js";
+
+export {
+  default as tickFormat
+} from "./tickFormat.js";
Index: node_modules/d3-scale/src/init.js
===================================================================
--- node_modules/d3-scale/src/init.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/init.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,26 @@
+export function initRange(domain, range) {
+  switch (arguments.length) {
+    case 0: break;
+    case 1: this.range(domain); break;
+    default: this.range(range).domain(domain); break;
+  }
+  return this;
+}
+
+export function initInterpolator(domain, interpolator) {
+  switch (arguments.length) {
+    case 0: break;
+    case 1: {
+      if (typeof domain === "function") this.interpolator(domain);
+      else this.range(domain);
+      break;
+    }
+    default: {
+      this.domain(domain);
+      if (typeof interpolator === "function") this.interpolator(interpolator);
+      else this.range(interpolator);
+      break;
+    }
+  }
+  return this;
+}
Index: node_modules/d3-scale/src/linear.js
===================================================================
--- node_modules/d3-scale/src/linear.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/linear.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,70 @@
+import {ticks, tickIncrement} from "d3-array";
+import continuous, {copy} from "./continuous.js";
+import {initRange} from "./init.js";
+import tickFormat from "./tickFormat.js";
+
+export function linearish(scale) {
+  var domain = scale.domain;
+
+  scale.ticks = function(count) {
+    var d = domain();
+    return ticks(d[0], d[d.length - 1], count == null ? 10 : count);
+  };
+
+  scale.tickFormat = function(count, specifier) {
+    var d = domain();
+    return tickFormat(d[0], d[d.length - 1], count == null ? 10 : count, specifier);
+  };
+
+  scale.nice = function(count) {
+    if (count == null) count = 10;
+
+    var d = domain();
+    var i0 = 0;
+    var i1 = d.length - 1;
+    var start = d[i0];
+    var stop = d[i1];
+    var prestep;
+    var step;
+    var maxIter = 10;
+
+    if (stop < start) {
+      step = start, start = stop, stop = step;
+      step = i0, i0 = i1, i1 = step;
+    }
+    
+    while (maxIter-- > 0) {
+      step = tickIncrement(start, stop, count);
+      if (step === prestep) {
+        d[i0] = start
+        d[i1] = stop
+        return domain(d);
+      } else if (step > 0) {
+        start = Math.floor(start / step) * step;
+        stop = Math.ceil(stop / step) * step;
+      } else if (step < 0) {
+        start = Math.ceil(start * step) / step;
+        stop = Math.floor(stop * step) / step;
+      } else {
+        break;
+      }
+      prestep = step;
+    }
+
+    return scale;
+  };
+
+  return scale;
+}
+
+export default function linear() {
+  var scale = continuous();
+
+  scale.copy = function() {
+    return copy(scale, linear());
+  };
+
+  initRange.apply(scale, arguments);
+
+  return linearish(scale);
+}
Index: node_modules/d3-scale/src/log.js
===================================================================
--- node_modules/d3-scale/src/log.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/log.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,140 @@
+import {ticks} from "d3-array";
+import {format, formatSpecifier} from "d3-format";
+import nice from "./nice.js";
+import {copy, transformer} from "./continuous.js";
+import {initRange} from "./init.js";
+
+function transformLog(x) {
+  return Math.log(x);
+}
+
+function transformExp(x) {
+  return Math.exp(x);
+}
+
+function transformLogn(x) {
+  return -Math.log(-x);
+}
+
+function transformExpn(x) {
+  return -Math.exp(-x);
+}
+
+function pow10(x) {
+  return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x;
+}
+
+function powp(base) {
+  return base === 10 ? pow10
+      : base === Math.E ? Math.exp
+      : x => Math.pow(base, x);
+}
+
+function logp(base) {
+  return base === Math.E ? Math.log
+      : base === 10 && Math.log10
+      || base === 2 && Math.log2
+      || (base = Math.log(base), x => Math.log(x) / base);
+}
+
+function reflect(f) {
+  return (x, k) => -f(-x, k);
+}
+
+export function loggish(transform) {
+  const scale = transform(transformLog, transformExp);
+  const domain = scale.domain;
+  let base = 10;
+  let logs;
+  let pows;
+
+  function rescale() {
+    logs = logp(base), pows = powp(base);
+    if (domain()[0] < 0) {
+      logs = reflect(logs), pows = reflect(pows);
+      transform(transformLogn, transformExpn);
+    } else {
+      transform(transformLog, transformExp);
+    }
+    return scale;
+  }
+
+  scale.base = function(_) {
+    return arguments.length ? (base = +_, rescale()) : base;
+  };
+
+  scale.domain = function(_) {
+    return arguments.length ? (domain(_), rescale()) : domain();
+  };
+
+  scale.ticks = count => {
+    const d = domain();
+    let u = d[0];
+    let v = d[d.length - 1];
+    const r = v < u;
+
+    if (r) ([u, v] = [v, u]);
+
+    let i = logs(u);
+    let j = logs(v);
+    let k;
+    let t;
+    const n = count == null ? 10 : +count;
+    let z = [];
+
+    if (!(base % 1) && j - i < n) {
+      i = Math.floor(i), j = Math.ceil(j);
+      if (u > 0) for (; i <= j; ++i) {
+        for (k = 1; k < base; ++k) {
+          t = i < 0 ? k / pows(-i) : k * pows(i);
+          if (t < u) continue;
+          if (t > v) break;
+          z.push(t);
+        }
+      } else for (; i <= j; ++i) {
+        for (k = base - 1; k >= 1; --k) {
+          t = i > 0 ? k / pows(-i) : k * pows(i);
+          if (t < u) continue;
+          if (t > v) break;
+          z.push(t);
+        }
+      }
+      if (z.length * 2 < n) z = ticks(u, v, n);
+    } else {
+      z = ticks(i, j, Math.min(j - i, n)).map(pows);
+    }
+    return r ? z.reverse() : z;
+  };
+
+  scale.tickFormat = (count, specifier) => {
+    if (count == null) count = 10;
+    if (specifier == null) specifier = base === 10 ? "s" : ",";
+    if (typeof specifier !== "function") {
+      if (!(base % 1) && (specifier = formatSpecifier(specifier)).precision == null) specifier.trim = true;
+      specifier = format(specifier);
+    }
+    if (count === Infinity) return specifier;
+    const k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate?
+    return d => {
+      let i = d / pows(Math.round(logs(d)));
+      if (i * base < base - 0.5) i *= base;
+      return i <= k ? specifier(d) : "";
+    };
+  };
+
+  scale.nice = () => {
+    return domain(nice(domain(), {
+      floor: x => pows(Math.floor(logs(x))),
+      ceil: x => pows(Math.ceil(logs(x)))
+    }));
+  };
+
+  return scale;
+}
+
+export default function log() {
+  const scale = loggish(transformer()).domain([1, 10]);
+  scale.copy = () => copy(scale, log()).base(scale.base());
+  initRange.apply(scale, arguments);
+  return scale;
+}
Index: node_modules/d3-scale/src/nice.js
===================================================================
--- node_modules/d3-scale/src/nice.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/nice.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,18 @@
+export default function nice(domain, interval) {
+  domain = domain.slice();
+
+  var i0 = 0,
+      i1 = domain.length - 1,
+      x0 = domain[i0],
+      x1 = domain[i1],
+      t;
+
+  if (x1 < x0) {
+    t = i0, i0 = i1, i1 = t;
+    t = x0, x0 = x1, x1 = t;
+  }
+
+  domain[i0] = interval.floor(x0);
+  domain[i1] = interval.ceil(x1);
+  return domain;
+}
Index: node_modules/d3-scale/src/number.js
===================================================================
--- node_modules/d3-scale/src/number.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/number.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,3 @@
+export default function number(x) {
+  return +x;
+}
Index: node_modules/d3-scale/src/ordinal.js
===================================================================
--- node_modules/d3-scale/src/ordinal.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/ordinal.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,46 @@
+import {InternMap} from "d3-array";
+import {initRange} from "./init.js";
+
+export const implicit = Symbol("implicit");
+
+export default function ordinal() {
+  var index = new InternMap(),
+      domain = [],
+      range = [],
+      unknown = implicit;
+
+  function scale(d) {
+    let i = index.get(d);
+    if (i === undefined) {
+      if (unknown !== implicit) return unknown;
+      index.set(d, i = domain.push(d) - 1);
+    }
+    return range[i % range.length];
+  }
+
+  scale.domain = function(_) {
+    if (!arguments.length) return domain.slice();
+    domain = [], index = new InternMap();
+    for (const value of _) {
+      if (index.has(value)) continue;
+      index.set(value, domain.push(value) - 1);
+    }
+    return scale;
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? (range = Array.from(_), scale) : range.slice();
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  scale.copy = function() {
+    return ordinal(domain, range).unknown(unknown);
+  };
+
+  initRange.apply(scale, arguments);
+
+  return scale;
+}
Index: node_modules/d3-scale/src/pow.js
===================================================================
--- node_modules/d3-scale/src/pow.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/pow.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,50 @@
+import {linearish} from "./linear.js";
+import {copy, identity, transformer} from "./continuous.js";
+import {initRange} from "./init.js";
+
+function transformPow(exponent) {
+  return function(x) {
+    return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);
+  };
+}
+
+function transformSqrt(x) {
+  return x < 0 ? -Math.sqrt(-x) : Math.sqrt(x);
+}
+
+function transformSquare(x) {
+  return x < 0 ? -x * x : x * x;
+}
+
+export function powish(transform) {
+  var scale = transform(identity, identity),
+      exponent = 1;
+
+  function rescale() {
+    return exponent === 1 ? transform(identity, identity)
+        : exponent === 0.5 ? transform(transformSqrt, transformSquare)
+        : transform(transformPow(exponent), transformPow(1 / exponent));
+  }
+
+  scale.exponent = function(_) {
+    return arguments.length ? (exponent = +_, rescale()) : exponent;
+  };
+
+  return linearish(scale);
+}
+
+export default function pow() {
+  var scale = powish(transformer());
+
+  scale.copy = function() {
+    return copy(scale, pow()).exponent(scale.exponent());
+  };
+
+  initRange.apply(scale, arguments);
+
+  return scale;
+}
+
+export function sqrt() {
+  return pow.apply(null, arguments).exponent(0.5);
+}
Index: node_modules/d3-scale/src/quantile.js
===================================================================
--- node_modules/d3-scale/src/quantile.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/quantile.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,57 @@
+import {ascending, bisect, quantileSorted as threshold} from "d3-array";
+import {initRange} from "./init.js";
+
+export default function quantile() {
+  var domain = [],
+      range = [],
+      thresholds = [],
+      unknown;
+
+  function rescale() {
+    var i = 0, n = Math.max(1, range.length);
+    thresholds = new Array(n - 1);
+    while (++i < n) thresholds[i - 1] = threshold(domain, i / n);
+    return scale;
+  }
+
+  function scale(x) {
+    return x == null || isNaN(x = +x) ? unknown : range[bisect(thresholds, x)];
+  }
+
+  scale.invertExtent = function(y) {
+    var i = range.indexOf(y);
+    return i < 0 ? [NaN, NaN] : [
+      i > 0 ? thresholds[i - 1] : domain[0],
+      i < thresholds.length ? thresholds[i] : domain[domain.length - 1]
+    ];
+  };
+
+  scale.domain = function(_) {
+    if (!arguments.length) return domain.slice();
+    domain = [];
+    for (let d of _) if (d != null && !isNaN(d = +d)) domain.push(d);
+    domain.sort(ascending);
+    return rescale();
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? (range = Array.from(_), rescale()) : range.slice();
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  scale.quantiles = function() {
+    return thresholds.slice();
+  };
+
+  scale.copy = function() {
+    return quantile()
+        .domain(domain)
+        .range(range)
+        .unknown(unknown);
+  };
+
+  return initRange.apply(scale, arguments);
+}
Index: node_modules/d3-scale/src/quantize.js
===================================================================
--- node_modules/d3-scale/src/quantize.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/quantize.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,56 @@
+import {bisect} from "d3-array";
+import {linearish} from "./linear.js";
+import {initRange} from "./init.js";
+
+export default function quantize() {
+  var x0 = 0,
+      x1 = 1,
+      n = 1,
+      domain = [0.5],
+      range = [0, 1],
+      unknown;
+
+  function scale(x) {
+    return x != null && x <= x ? range[bisect(domain, x, 0, n)] : unknown;
+  }
+
+  function rescale() {
+    var i = -1;
+    domain = new Array(n);
+    while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1);
+    return scale;
+  }
+
+  scale.domain = function(_) {
+    return arguments.length ? ([x0, x1] = _, x0 = +x0, x1 = +x1, rescale()) : [x0, x1];
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? (n = (range = Array.from(_)).length - 1, rescale()) : range.slice();
+  };
+
+  scale.invertExtent = function(y) {
+    var i = range.indexOf(y);
+    return i < 0 ? [NaN, NaN]
+        : i < 1 ? [x0, domain[0]]
+        : i >= n ? [domain[n - 1], x1]
+        : [domain[i - 1], domain[i]];
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : scale;
+  };
+
+  scale.thresholds = function() {
+    return domain.slice();
+  };
+
+  scale.copy = function() {
+    return quantize()
+        .domain([x0, x1])
+        .range(range)
+        .unknown(unknown);
+  };
+
+  return initRange.apply(linearish(scale), arguments);
+}
Index: node_modules/d3-scale/src/radial.js
===================================================================
--- node_modules/d3-scale/src/radial.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/radial.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,63 @@
+import continuous from "./continuous.js";
+import {initRange} from "./init.js";
+import {linearish} from "./linear.js";
+import number from "./number.js";
+
+function square(x) {
+  return Math.sign(x) * x * x;
+}
+
+function unsquare(x) {
+  return Math.sign(x) * Math.sqrt(Math.abs(x));
+}
+
+export default function radial() {
+  var squared = continuous(),
+      range = [0, 1],
+      round = false,
+      unknown;
+
+  function scale(x) {
+    var y = unsquare(squared(x));
+    return isNaN(y) ? unknown : round ? Math.round(y) : y;
+  }
+
+  scale.invert = function(y) {
+    return squared.invert(square(y));
+  };
+
+  scale.domain = function(_) {
+    return arguments.length ? (squared.domain(_), scale) : squared.domain();
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? (squared.range((range = Array.from(_, number)).map(square)), scale) : range.slice();
+  };
+
+  scale.rangeRound = function(_) {
+    return scale.range(_).round(true);
+  };
+
+  scale.round = function(_) {
+    return arguments.length ? (round = !!_, scale) : round;
+  };
+
+  scale.clamp = function(_) {
+    return arguments.length ? (squared.clamp(_), scale) : squared.clamp();
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  scale.copy = function() {
+    return radial(squared.domain(), range)
+        .round(round)
+        .clamp(squared.clamp())
+        .unknown(unknown);
+  };
+
+  initRange.apply(scale, arguments);
+
+  return linearish(scale);
+}
Index: node_modules/d3-scale/src/sequential.js
===================================================================
--- node_modules/d3-scale/src/sequential.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/sequential.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,107 @@
+import {interpolate, interpolateRound} from "d3-interpolate";
+import {identity} from "./continuous.js";
+import {initInterpolator} from "./init.js";
+import {linearish} from "./linear.js";
+import {loggish} from "./log.js";
+import {symlogish} from "./symlog.js";
+import {powish} from "./pow.js";
+
+function transformer() {
+  var x0 = 0,
+      x1 = 1,
+      t0,
+      t1,
+      k10,
+      transform,
+      interpolator = identity,
+      clamp = false,
+      unknown;
+
+  function scale(x) {
+    return x == null || isNaN(x = +x) ? unknown : interpolator(k10 === 0 ? 0.5 : (x = (transform(x) - t0) * k10, clamp ? Math.max(0, Math.min(1, x)) : x));
+  }
+
+  scale.domain = function(_) {
+    return arguments.length ? ([x0, x1] = _, t0 = transform(x0 = +x0), t1 = transform(x1 = +x1), k10 = t0 === t1 ? 0 : 1 / (t1 - t0), scale) : [x0, x1];
+  };
+
+  scale.clamp = function(_) {
+    return arguments.length ? (clamp = !!_, scale) : clamp;
+  };
+
+  scale.interpolator = function(_) {
+    return arguments.length ? (interpolator = _, scale) : interpolator;
+  };
+
+  function range(interpolate) {
+    return function(_) {
+      var r0, r1;
+      return arguments.length ? ([r0, r1] = _, interpolator = interpolate(r0, r1), scale) : [interpolator(0), interpolator(1)];
+    };
+  }
+
+  scale.range = range(interpolate);
+
+  scale.rangeRound = range(interpolateRound);
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  return function(t) {
+    transform = t, t0 = t(x0), t1 = t(x1), k10 = t0 === t1 ? 0 : 1 / (t1 - t0);
+    return scale;
+  };
+}
+
+export function copy(source, target) {
+  return target
+      .domain(source.domain())
+      .interpolator(source.interpolator())
+      .clamp(source.clamp())
+      .unknown(source.unknown());
+}
+
+export default function sequential() {
+  var scale = linearish(transformer()(identity));
+
+  scale.copy = function() {
+    return copy(scale, sequential());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function sequentialLog() {
+  var scale = loggish(transformer()).domain([1, 10]);
+
+  scale.copy = function() {
+    return copy(scale, sequentialLog()).base(scale.base());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function sequentialSymlog() {
+  var scale = symlogish(transformer());
+
+  scale.copy = function() {
+    return copy(scale, sequentialSymlog()).constant(scale.constant());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function sequentialPow() {
+  var scale = powish(transformer());
+
+  scale.copy = function() {
+    return copy(scale, sequentialPow()).exponent(scale.exponent());
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
+
+export function sequentialSqrt() {
+  return sequentialPow.apply(null, arguments).exponent(0.5);
+}
Index: node_modules/d3-scale/src/sequentialQuantile.js
===================================================================
--- node_modules/d3-scale/src/sequentialQuantile.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/sequentialQuantile.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,38 @@
+import {ascending, bisect, quantile} from "d3-array";
+import {identity} from "./continuous.js";
+import {initInterpolator} from "./init.js";
+
+export default function sequentialQuantile() {
+  var domain = [],
+      interpolator = identity;
+
+  function scale(x) {
+    if (x != null && !isNaN(x = +x)) return interpolator((bisect(domain, x, 1) - 1) / (domain.length - 1));
+  }
+
+  scale.domain = function(_) {
+    if (!arguments.length) return domain.slice();
+    domain = [];
+    for (let d of _) if (d != null && !isNaN(d = +d)) domain.push(d);
+    domain.sort(ascending);
+    return scale;
+  };
+
+  scale.interpolator = function(_) {
+    return arguments.length ? (interpolator = _, scale) : interpolator;
+  };
+
+  scale.range = function() {
+    return domain.map((d, i) => interpolator(i / (domain.length - 1)));
+  };
+
+  scale.quantiles = function(n) {
+    return Array.from({length: n + 1}, (_, i) => quantile(domain, i / n));
+  };
+
+  scale.copy = function() {
+    return sequentialQuantile(interpolator).domain(domain);
+  };
+
+  return initInterpolator.apply(scale, arguments);
+}
Index: node_modules/d3-scale/src/symlog.js
===================================================================
--- node_modules/d3-scale/src/symlog.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/symlog.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,35 @@
+import {linearish} from "./linear.js";
+import {copy, transformer} from "./continuous.js";
+import {initRange} from "./init.js";
+
+function transformSymlog(c) {
+  return function(x) {
+    return Math.sign(x) * Math.log1p(Math.abs(x / c));
+  };
+}
+
+function transformSymexp(c) {
+  return function(x) {
+    return Math.sign(x) * Math.expm1(Math.abs(x)) * c;
+  };
+}
+
+export function symlogish(transform) {
+  var c = 1, scale = transform(transformSymlog(c), transformSymexp(c));
+
+  scale.constant = function(_) {
+    return arguments.length ? transform(transformSymlog(c = +_), transformSymexp(c)) : c;
+  };
+
+  return linearish(scale);
+}
+
+export default function symlog() {
+  var scale = symlogish(transformer());
+
+  scale.copy = function() {
+    return copy(scale, symlog()).constant(scale.constant());
+  };
+
+  return initRange.apply(scale, arguments);
+}
Index: node_modules/d3-scale/src/threshold.js
===================================================================
--- node_modules/d3-scale/src/threshold.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/threshold.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,39 @@
+import {bisect} from "d3-array";
+import {initRange} from "./init.js";
+
+export default function threshold() {
+  var domain = [0.5],
+      range = [0, 1],
+      unknown,
+      n = 1;
+
+  function scale(x) {
+    return x != null && x <= x ? range[bisect(domain, x, 0, n)] : unknown;
+  }
+
+  scale.domain = function(_) {
+    return arguments.length ? (domain = Array.from(_), n = Math.min(domain.length, range.length - 1), scale) : domain.slice();
+  };
+
+  scale.range = function(_) {
+    return arguments.length ? (range = Array.from(_), n = Math.min(domain.length, range.length - 1), scale) : range.slice();
+  };
+
+  scale.invertExtent = function(y) {
+    var i = range.indexOf(y);
+    return [domain[i - 1], domain[i]];
+  };
+
+  scale.unknown = function(_) {
+    return arguments.length ? (unknown = _, scale) : unknown;
+  };
+
+  scale.copy = function() {
+    return threshold()
+        .domain(domain)
+        .range(range)
+        .unknown(unknown);
+  };
+
+  return initRange.apply(scale, arguments);
+}
Index: node_modules/d3-scale/src/tickFormat.js
===================================================================
--- node_modules/d3-scale/src/tickFormat.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/tickFormat.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,29 @@
+import {tickStep} from "d3-array";
+import {format, formatPrefix, formatSpecifier, precisionFixed, precisionPrefix, precisionRound} from "d3-format";
+
+export default function tickFormat(start, stop, count, specifier) {
+  var step = tickStep(start, stop, count),
+      precision;
+  specifier = formatSpecifier(specifier == null ? ",f" : specifier);
+  switch (specifier.type) {
+    case "s": {
+      var value = Math.max(Math.abs(start), Math.abs(stop));
+      if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;
+      return formatPrefix(specifier, value);
+    }
+    case "":
+    case "e":
+    case "g":
+    case "p":
+    case "r": {
+      if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");
+      break;
+    }
+    case "f":
+    case "%": {
+      if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;
+      break;
+    }
+  }
+  return format(specifier);
+}
Index: node_modules/d3-scale/src/time.js
===================================================================
--- node_modules/d3-scale/src/time.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/time.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,71 @@
+import {timeYear, timeMonth, timeWeek, timeDay, timeHour, timeMinute, timeSecond, timeTicks, timeTickInterval} from "d3-time";
+import {timeFormat} from "d3-time-format";
+import continuous, {copy} from "./continuous.js";
+import {initRange} from "./init.js";
+import nice from "./nice.js";
+
+function date(t) {
+  return new Date(t);
+}
+
+function number(t) {
+  return t instanceof Date ? +t : +new Date(+t);
+}
+
+export function calendar(ticks, tickInterval, year, month, week, day, hour, minute, second, format) {
+  var scale = continuous(),
+      invert = scale.invert,
+      domain = scale.domain;
+
+  var formatMillisecond = format(".%L"),
+      formatSecond = format(":%S"),
+      formatMinute = format("%I:%M"),
+      formatHour = format("%I %p"),
+      formatDay = format("%a %d"),
+      formatWeek = format("%b %d"),
+      formatMonth = format("%B"),
+      formatYear = format("%Y");
+
+  function tickFormat(date) {
+    return (second(date) < date ? formatMillisecond
+        : minute(date) < date ? formatSecond
+        : hour(date) < date ? formatMinute
+        : day(date) < date ? formatHour
+        : month(date) < date ? (week(date) < date ? formatDay : formatWeek)
+        : year(date) < date ? formatMonth
+        : formatYear)(date);
+  }
+
+  scale.invert = function(y) {
+    return new Date(invert(y));
+  };
+
+  scale.domain = function(_) {
+    return arguments.length ? domain(Array.from(_, number)) : domain().map(date);
+  };
+
+  scale.ticks = function(interval) {
+    var d = domain();
+    return ticks(d[0], d[d.length - 1], interval == null ? 10 : interval);
+  };
+
+  scale.tickFormat = function(count, specifier) {
+    return specifier == null ? tickFormat : format(specifier);
+  };
+
+  scale.nice = function(interval) {
+    var d = domain();
+    if (!interval || typeof interval.range !== "function") interval = tickInterval(d[0], d[d.length - 1], interval == null ? 10 : interval);
+    return interval ? domain(nice(d, interval)) : scale;
+  };
+
+  scale.copy = function() {
+    return copy(scale, calendar(ticks, tickInterval, year, month, week, day, hour, minute, second, format));
+  };
+
+  return scale;
+}
+
+export default function time() {
+  return initRange.apply(calendar(timeTicks, timeTickInterval, timeYear, timeMonth, timeWeek, timeDay, timeHour, timeMinute, timeSecond, timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]), arguments);
+}
Index: node_modules/d3-scale/src/utcTime.js
===================================================================
--- node_modules/d3-scale/src/utcTime.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale/src/utcTime.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,8 @@
+import {utcYear, utcMonth, utcWeek, utcDay, utcHour, utcMinute, utcSecond, utcTicks, utcTickInterval} from "d3-time";
+import {utcFormat} from "d3-time-format";
+import {calendar} from "./time.js";
+import {initRange} from "./init.js";
+
+export default function utcTime() {
+  return initRange.apply(calendar(utcTicks, utcTickInterval, utcYear, utcMonth, utcWeek, utcDay, utcHour, utcMinute, utcSecond, utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]), arguments);
+}