@equinor/esv-intersection/dist/index.cjs.map

Intersection component package with testing and automatic documentation.

{"version":3,"file":"index.cjs","sources":["../node_modules/d3-axis/src/identity.js","../node_modules/d3-axis/src/axis.js","../node_modules/d3-array/src/ascending.js","../node_modules/d3-array/src/descending.js","../node_modules/d3-array/src/bisector.js","../node_modules/d3-array/src/number.js","../node_modules/d3-array/src/bisect.js","../node_modules/internmap/src/index.js","../node_modules/d3-array/src/ticks.js","../node_modules/d3-array/src/max.js","../node_modules/d3-array/src/sum.js","../node_modules/d3-scale/src/init.js","../node_modules/d3-scale/src/ordinal.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/d3-interpolate/src/round.js","../node_modules/d3-interpolate/src/transform/decompose.js","../node_modules/d3-interpolate/src/transform/parse.js","../node_modules/d3-interpolate/src/transform/index.js","../node_modules/d3-interpolate/src/zoom.js","../node_modules/d3-interpolate/src/quantize.js","../node_modules/d3-scale/src/constant.js","../node_modules/d3-scale/src/number.js","../node_modules/d3-scale/src/continuous.js","../node_modules/d3-format/src/formatDecimal.js","../node_modules/d3-format/src/exponent.js","../node_modules/d3-format/src/formatGroup.js","../node_modules/d3-format/src/formatNumerals.js","../node_modules/d3-format/src/formatSpecifier.js","../node_modules/d3-format/src/formatTrim.js","../node_modules/d3-format/src/formatPrefixAuto.js","../node_modules/d3-format/src/formatRounded.js","../node_modules/d3-format/src/formatTypes.js","../node_modules/d3-format/src/identity.js","../node_modules/d3-format/src/locale.js","../node_modules/d3-format/src/defaultLocale.js","../node_modules/d3-format/src/precisionFixed.js","../node_modules/d3-format/src/precisionPrefix.js","../node_modules/d3-format/src/precisionRound.js","../node_modules/d3-scale/src/tickFormat.js","../node_modules/d3-scale/src/linear.js","../src/components/axis.ts","../node_modules/@equinor/videx-math/dist/index.esm.js","../node_modules/@equinor/videx-linear-algebra/dist/index.esm.js","../node_modules/@equinor/videx-vector2/dist/index.esm.js","../node_modules/curve-interpolator/dist/index.esm.js","../src/utils/root-finder.ts","../src/utils/arc-length.ts","../src/utils/binary-search.ts","../src/control/ExtendedCurveInterpolator.ts","../src/control/IntersectionReferenceSystem.ts","../node_modules/d3-selection/src/namespaces.js","../node_modules/d3-selection/src/namespace.js","../node_modules/d3-selection/src/creator.js","../node_modules/d3-selection/src/selector.js","../node_modules/d3-selection/src/selection/select.js","../node_modules/d3-selection/src/array.js","../node_modules/d3-selection/src/selectorAll.js","../node_modules/d3-selection/src/selection/selectAll.js","../node_modules/d3-selection/src/matcher.js","../node_modules/d3-selection/src/selection/selectChild.js","../node_modules/d3-selection/src/selection/selectChildren.js","../node_modules/d3-selection/src/selection/filter.js","../node_modules/d3-selection/src/selection/sparse.js","../node_modules/d3-selection/src/selection/enter.js","../node_modules/d3-selection/src/constant.js","../node_modules/d3-selection/src/selection/data.js","../node_modules/d3-selection/src/selection/exit.js","../node_modules/d3-selection/src/selection/join.js","../node_modules/d3-selection/src/selection/merge.js","../node_modules/d3-selection/src/selection/order.js","../node_modules/d3-selection/src/selection/sort.js","../node_modules/d3-selection/src/selection/call.js","../node_modules/d3-selection/src/selection/nodes.js","../node_modules/d3-selection/src/selection/node.js","../node_modules/d3-selection/src/selection/size.js","../node_modules/d3-selection/src/selection/empty.js","../node_modules/d3-selection/src/selection/each.js","../node_modules/d3-selection/src/selection/attr.js","../node_modules/d3-selection/src/window.js","../node_modules/d3-selection/src/selection/style.js","../node_modules/d3-selection/src/selection/property.js","../node_modules/d3-selection/src/selection/classed.js","../node_modules/d3-selection/src/selection/text.js","../node_modules/d3-selection/src/selection/html.js","../node_modules/d3-selection/src/selection/raise.js","../node_modules/d3-selection/src/selection/lower.js","../node_modules/d3-selection/src/selection/append.js","../node_modules/d3-selection/src/selection/insert.js","../node_modules/d3-selection/src/selection/remove.js","../node_modules/d3-selection/src/selection/clone.js","../node_modules/d3-selection/src/selection/datum.js","../node_modules/d3-selection/src/selection/on.js","../node_modules/d3-selection/src/selection/dispatch.js","../node_modules/d3-selection/src/selection/iterator.js","../node_modules/d3-selection/src/selection/index.js","../node_modules/d3-selection/src/select.js","../node_modules/d3-selection/src/sourceEvent.js","../node_modules/d3-selection/src/pointer.js","../node_modules/d3-dispatch/src/dispatch.js","../node_modules/d3-drag/src/noevent.js","../node_modules/d3-drag/src/nodrag.js","../node_modules/d3-timer/src/timer.js","../node_modules/d3-timer/src/timeout.js","../node_modules/d3-transition/src/transition/schedule.js","../node_modules/d3-transition/src/interrupt.js","../node_modules/d3-transition/src/selection/interrupt.js","../node_modules/d3-transition/src/transition/tween.js","../node_modules/d3-transition/src/transition/interpolate.js","../node_modules/d3-transition/src/transition/attr.js","../node_modules/d3-transition/src/transition/attrTween.js","../node_modules/d3-transition/src/transition/delay.js","../node_modules/d3-transition/src/transition/duration.js","../node_modules/d3-transition/src/transition/ease.js","../node_modules/d3-transition/src/transition/easeVarying.js","../node_modules/d3-transition/src/transition/filter.js","../node_modules/d3-transition/src/transition/merge.js","../node_modules/d3-transition/src/transition/on.js","../node_modules/d3-transition/src/transition/remove.js","../node_modules/d3-transition/src/transition/select.js","../node_modules/d3-transition/src/transition/selectAll.js","../node_modules/d3-transition/src/transition/selection.js","../node_modules/d3-transition/src/transition/style.js","../node_modules/d3-transition/src/transition/styleTween.js","../node_modules/d3-transition/src/transition/text.js","../node_modules/d3-transition/src/transition/textTween.js","../node_modules/d3-transition/src/transition/transition.js","../node_modules/d3-transition/src/transition/end.js","../node_modules/d3-transition/src/transition/index.js","../node_modules/d3-ease/src/cubic.js","../node_modules/d3-transition/src/selection/transition.js","../node_modules/d3-transition/src/selection/index.js","../node_modules/d3-zoom/src/constant.js","../node_modules/d3-zoom/src/event.js","../node_modules/d3-zoom/src/transform.js","../node_modules/d3-zoom/src/noevent.js","../node_modules/d3-zoom/src/zoom.js","../src/control/ZoomPanHandler.ts","../src/layers/base/Layer.ts","../src/constants.ts","../src/layers/base/CanvasLayer.ts","../src/layers/base/HTMLLayer.ts","../src/layers/base/SVGLayer.ts","../src/layers/base/PixiLayer.ts","../src/layers/schematicInterfaces.ts","../src/utils/text.ts","../src/layers/CalloutCanvasLayer.ts","../src/utils/color.ts","../src/layers/GeomodelCanvasLayer.ts","../src/datautils/findsample.ts","../src/datautils/picks.ts","../src/datautils/colortable.ts","../src/datautils/seismicimage.ts","../src/datautils/surfacedata.ts","../src/datautils/trajectory.ts","../src/layers/GeomodelLabelsLayer.ts","../src/layers/GeomodelLayerV2.ts","../src/layers/GridLayer.ts","../src/layers/ImageCanvasLayer.ts","../src/vendor/pixi-dashed-line/index.ts","../src/utils/vectorUtils.ts","../src/datautils/schematicShapeGenerator.ts","../src/layers/CustomDisplayObjects/ComplexRopeGeometry.ts","../src/layers/CustomDisplayObjects/ComplexRope.ts","../src/layers/CustomDisplayObjects/FixedWidthSimpleRopeGeometry.ts","../src/layers/CustomDisplayObjects/FixedWidthSimpleRope.ts","../src/layers/CustomDisplayObjects/UniformTextureStretchRopeGeometry.ts","../src/layers/CustomDisplayObjects/UniformTextureStretchRope.ts","../src/layers/SchematicLayer.ts","../src/layers/SeismicCanvasLayer.ts","../node_modules/d3-shape/src/constant.js","../node_modules/d3-shape/src/math.js","../node_modules/d3-path/src/path.js","../node_modules/d3-shape/src/path.js","../node_modules/d3-shape/src/array.js","../node_modules/d3-shape/src/curve/linear.js","../node_modules/d3-shape/src/point.js","../node_modules/d3-shape/src/line.js","../node_modules/d3-shape/src/noop.js","../node_modules/d3-shape/src/curve/basis.js","../node_modules/d3-shape/src/curve/basisClosed.js","../node_modules/d3-shape/src/curve/bundle.js","../node_modules/d3-shape/src/curve/cardinal.js","../node_modules/d3-shape/src/curve/catmullRom.js","../node_modules/d3-shape/src/curve/monotone.js","../node_modules/d3-shape/src/curve/natural.js","../node_modules/d3-shape/src/curve/step.js","../src/layers/WellborePathLayer.ts","../src/layers/ReferenceLineLayer.ts","../src/control/LayerManager.ts","../src/control/overlay.ts","../src/control/MainController.ts"],"sourcesContent":["export default function(x) {\n  return x;\n}\n","import identity from \"./identity.js\";\n\nvar top = 1,\n    right = 2,\n    bottom = 3,\n    left = 4,\n    epsilon = 1e-6;\n\nfunction translateX(x) {\n  return \"translate(\" + x + \",0)\";\n}\n\nfunction translateY(y) {\n  return \"translate(0,\" + y + \")\";\n}\n\nfunction number(scale) {\n  return d => +scale(d);\n}\n\nfunction center(scale, offset) {\n  offset = Math.max(0, scale.bandwidth() - offset * 2) / 2;\n  if (scale.round()) offset = Math.round(offset);\n  return d => +scale(d) + offset;\n}\n\nfunction entering() {\n  return !this.__axis;\n}\n\nfunction axis(orient, scale) {\n  var tickArguments = [],\n      tickValues = null,\n      tickFormat = null,\n      tickSizeInner = 6,\n      tickSizeOuter = 6,\n      tickPadding = 3,\n      offset = typeof window !== \"undefined\" && window.devicePixelRatio > 1 ? 0 : 0.5,\n      k = orient === top || orient === left ? -1 : 1,\n      x = orient === left || orient === right ? \"x\" : \"y\",\n      transform = orient === top || orient === bottom ? translateX : translateY;\n\n  function axis(context) {\n    var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,\n        format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity) : tickFormat,\n        spacing = Math.max(tickSizeInner, 0) + tickPadding,\n        range = scale.range(),\n        range0 = +range[0] + offset,\n        range1 = +range[range.length - 1] + offset,\n        position = (scale.bandwidth ? center : number)(scale.copy(), offset),\n        selection = context.selection ? context.selection() : context,\n        path = selection.selectAll(\".domain\").data([null]),\n        tick = selection.selectAll(\".tick\").data(values, scale).order(),\n        tickExit = tick.exit(),\n        tickEnter = tick.enter().append(\"g\").attr(\"class\", \"tick\"),\n        line = tick.select(\"line\"),\n        text = tick.select(\"text\");\n\n    path = path.merge(path.enter().insert(\"path\", \".tick\")\n        .attr(\"class\", \"domain\")\n        .attr(\"stroke\", \"currentColor\"));\n\n    tick = tick.merge(tickEnter);\n\n    line = line.merge(tickEnter.append(\"line\")\n        .attr(\"stroke\", \"currentColor\")\n        .attr(x + \"2\", k * tickSizeInner));\n\n    text = text.merge(tickEnter.append(\"text\")\n        .attr(\"fill\", \"currentColor\")\n        .attr(x, k * spacing)\n        .attr(\"dy\", orient === top ? \"0em\" : orient === bottom ? \"0.71em\" : \"0.32em\"));\n\n    if (context !== selection) {\n      path = path.transition(context);\n      tick = tick.transition(context);\n      line = line.transition(context);\n      text = text.transition(context);\n\n      tickExit = tickExit.transition(context)\n          .attr(\"opacity\", epsilon)\n          .attr(\"transform\", function(d) { return isFinite(d = position(d)) ? transform(d + offset) : this.getAttribute(\"transform\"); });\n\n      tickEnter\n          .attr(\"opacity\", epsilon)\n          .attr(\"transform\", function(d) { var p = this.parentNode.__axis; return transform((p && isFinite(p = p(d)) ? p : position(d)) + offset); });\n    }\n\n    tickExit.remove();\n\n    path\n        .attr(\"d\", orient === left || orient === right\n            ? (tickSizeOuter ? \"M\" + k * tickSizeOuter + \",\" + range0 + \"H\" + offset + \"V\" + range1 + \"H\" + k * tickSizeOuter : \"M\" + offset + \",\" + range0 + \"V\" + range1)\n            : (tickSizeOuter ? \"M\" + range0 + \",\" + k * tickSizeOuter + \"V\" + offset + \"H\" + range1 + \"V\" + k * tickSizeOuter : \"M\" + range0 + \",\" + offset + \"H\" + range1));\n\n    tick\n        .attr(\"opacity\", 1)\n        .attr(\"transform\", function(d) { return transform(position(d) + offset); });\n\n    line\n        .attr(x + \"2\", k * tickSizeInner);\n\n    text\n        .attr(x, k * spacing)\n        .text(format);\n\n    selection.filter(entering)\n        .attr(\"fill\", \"none\")\n        .attr(\"font-size\", 10)\n        .attr(\"font-family\", \"sans-serif\")\n        .attr(\"text-anchor\", orient === right ? \"start\" : orient === left ? \"end\" : \"middle\");\n\n    selection\n        .each(function() { this.__axis = position; });\n  }\n\n  axis.scale = function(_) {\n    return arguments.length ? (scale = _, axis) : scale;\n  };\n\n  axis.ticks = function() {\n    return tickArguments = Array.from(arguments), axis;\n  };\n\n  axis.tickArguments = function(_) {\n    return arguments.length ? (tickArguments = _ == null ? [] : Array.from(_), axis) : tickArguments.slice();\n  };\n\n  axis.tickValues = function(_) {\n    return arguments.length ? (tickValues = _ == null ? null : Array.from(_), axis) : tickValues && tickValues.slice();\n  };\n\n  axis.tickFormat = function(_) {\n    return arguments.length ? (tickFormat = _, axis) : tickFormat;\n  };\n\n  axis.tickSize = function(_) {\n    return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;\n  };\n\n  axis.tickSizeInner = function(_) {\n    return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;\n  };\n\n  axis.tickSizeOuter = function(_) {\n    return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;\n  };\n\n  axis.tickPadding = function(_) {\n    return arguments.length ? (tickPadding = +_, axis) : tickPadding;\n  };\n\n  axis.offset = function(_) {\n    return arguments.length ? (offset = +_, axis) : offset;\n  };\n\n  return axis;\n}\n\nexport function axisTop(scale) {\n  return axis(top, scale);\n}\n\nexport function axisRight(scale) {\n  return axis(right, scale);\n}\n\nexport function axisBottom(scale) {\n  return axis(bottom, scale);\n}\n\nexport function axisLeft(scale) {\n  return axis(left, scale);\n}\n","export default function ascending(a, b) {\n  return a == null || b == null ? NaN : a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;\n}\n","export default function descending(a, b) {\n  return a == null || b == null ? NaN\n    : b < a ? -1\n    : b > a ? 1\n    : b >= a ? 0\n    : NaN;\n}\n","import ascending from \"./ascending.js\";\nimport descending from \"./descending.js\";\n\nexport default function bisector(f) {\n  let compare1, compare2, delta;\n\n  // If an accessor is specified, promote it to a comparator. In this case we\n  // can test whether the search value is (self-) comparable. We can’t do this\n  // for a comparator (except for specific, known comparators) because we can’t\n  // tell if the comparator is symmetric, and an asymmetric comparator can’t be\n  // used to test whether a single value is comparable.\n  if (f.length !== 2) {\n    compare1 = ascending;\n    compare2 = (d, x) => ascending(f(d), x);\n    delta = (d, x) => f(d) - x;\n  } else {\n    compare1 = f === ascending || f === descending ? f : zero;\n    compare2 = f;\n    delta = f;\n  }\n\n  function left(a, x, lo = 0, hi = a.length) {\n    if (lo < hi) {\n      if (compare1(x, x) !== 0) return hi;\n      do {\n        const mid = (lo + hi) >>> 1;\n        if (compare2(a[mid], x) < 0) lo = mid + 1;\n        else hi = mid;\n      } while (lo < hi);\n    }\n    return lo;\n  }\n\n  function right(a, x, lo = 0, hi = a.length) {\n    if (lo < hi) {\n      if (compare1(x, x) !== 0) return hi;\n      do {\n        const mid = (lo + hi) >>> 1;\n        if (compare2(a[mid], x) <= 0) lo = mid + 1;\n        else hi = mid;\n      } while (lo < hi);\n    }\n    return lo;\n  }\n\n  function center(a, x, lo = 0, hi = a.length) {\n    const i = left(a, x, lo, hi - 1);\n    return i > lo && delta(a[i - 1], x) > -delta(a[i], x) ? i - 1 : i;\n  }\n\n  return {left, center, right};\n}\n\nfunction zero() {\n  return 0;\n}\n","export default function number(x) {\n  return x === null ? NaN : +x;\n}\n\nexport function* numbers(values, valueof) {\n  if (valueof === undefined) {\n    for (let value of values) {\n      if (value != null && (value = +value) >= value) {\n        yield value;\n      }\n    }\n  } else {\n    let index = -1;\n    for (let value of values) {\n      if ((value = valueof(value, ++index, values)) != null && (value = +value) >= value) {\n        yield value;\n      }\n    }\n  }\n}\n","import ascending from \"./ascending.js\";\nimport bisector from \"./bisector.js\";\nimport number from \"./number.js\";\n\nconst ascendingBisect = bisector(ascending);\nexport const bisectRight = ascendingBisect.right;\nexport const bisectLeft = ascendingBisect.left;\nexport const bisectCenter = bisector(number).center;\nexport default bisectRight;\n","export class InternMap extends Map {\n  constructor(entries, key = keyof) {\n    super();\n    Object.defineProperties(this, {_intern: {value: new Map()}, _key: {value: key}});\n    if (entries != null) for (const [key, value] of entries) this.set(key, value);\n  }\n  get(key) {\n    return super.get(intern_get(this, key));\n  }\n  has(key) {\n    return super.has(intern_get(this, key));\n  }\n  set(key, value) {\n    return super.set(intern_set(this, key), value);\n  }\n  delete(key) {\n    return super.delete(intern_delete(this, key));\n  }\n}\n\nexport class InternSet extends Set {\n  constructor(values, key = keyof) {\n    super();\n    Object.defineProperties(this, {_intern: {value: new Map()}, _key: {value: key}});\n    if (values != null) for (const value of values) this.add(value);\n  }\n  has(value) {\n    return super.has(intern_get(this, value));\n  }\n  add(value) {\n    return super.add(intern_set(this, value));\n  }\n  delete(value) {\n    return super.delete(intern_delete(this, value));\n  }\n}\n\nfunction intern_get({_intern, _key}, value) {\n  const key = _key(value);\n  return _intern.has(key) ? _intern.get(key) : value;\n}\n\nfunction intern_set({_intern, _key}, value) {\n  const key = _key(value);\n  if (_intern.has(key)) return _intern.get(key);\n  _intern.set(key, value);\n  return value;\n}\n\nfunction intern_delete({_intern, _key}, value) {\n  const key = _key(value);\n  if (_intern.has(key)) {\n    value = _intern.get(value);\n    _intern.delete(key);\n  }\n  return value;\n}\n\nfunction keyof(value) {\n  return value !== null && typeof value === \"object\" ? value.valueOf() : value;\n}\n","const e10 = Math.sqrt(50),\n    e5 = Math.sqrt(10),\n    e2 = Math.sqrt(2);\n\nfunction tickSpec(start, stop, count) {\n  const step = (stop - start) / Math.max(0, count),\n      power = Math.floor(Math.log10(step)),\n      error = step / Math.pow(10, power),\n      factor = error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1;\n  let i1, i2, inc;\n  if (power < 0) {\n    inc = Math.pow(10, -power) / factor;\n    i1 = Math.round(start * inc);\n    i2 = Math.round(stop * inc);\n    if (i1 / inc < start) ++i1;\n    if (i2 / inc > stop) --i2;\n    inc = -inc;\n  } else {\n    inc = Math.pow(10, power) * factor;\n    i1 = Math.round(start / inc);\n    i2 = Math.round(stop / inc);\n    if (i1 * inc < start) ++i1;\n    if (i2 * inc > stop) --i2;\n  }\n  if (i2 < i1 && 0.5 <= count && count < 2) return tickSpec(start, stop, count * 2);\n  return [i1, i2, inc];\n}\n\nexport default function ticks(start, stop, count) {\n  stop = +stop, start = +start, count = +count;\n  if (!(count > 0)) return [];\n  if (start === stop) return [start];\n  const reverse = stop < start, [i1, i2, inc] = reverse ? tickSpec(stop, start, count) : tickSpec(start, stop, count);\n  if (!(i2 >= i1)) return [];\n  const n = i2 - i1 + 1, ticks = new Array(n);\n  if (reverse) {\n    if (inc < 0) for (let i = 0; i < n; ++i) ticks[i] = (i2 - i) / -inc;\n    else for (let i = 0; i < n; ++i) ticks[i] = (i2 - i) * inc;\n  } else {\n    if (inc < 0) for (let i = 0; i < n; ++i) ticks[i] = (i1 + i) / -inc;\n    else for (let i = 0; i < n; ++i) ticks[i] = (i1 + i) * inc;\n  }\n  return ticks;\n}\n\nexport function tickIncrement(start, stop, count) {\n  stop = +stop, start = +start, count = +count;\n  return tickSpec(start, stop, count)[2];\n}\n\nexport function tickStep(start, stop, count) {\n  stop = +stop, start = +start, count = +count;\n  const reverse = stop < start, inc = reverse ? tickIncrement(stop, start, count) : tickIncrement(start, stop, count);\n  return (reverse ? -1 : 1) * (inc < 0 ? 1 / -inc : inc);\n}\n","export default function max(values, valueof) {\n  let max;\n  if (valueof === undefined) {\n    for (const value of values) {\n      if (value != null\n          && (max < value || (max === undefined && value >= value))) {\n        max = value;\n      }\n    }\n  } else {\n    let index = -1;\n    for (let value of values) {\n      if ((value = valueof(value, ++index, values)) != null\n          && (max < value || (max === undefined && value >= value))) {\n        max = value;\n      }\n    }\n  }\n  return max;\n}\n","export default function sum(values, valueof) {\n  let sum = 0;\n  if (valueof === undefined) {\n    for (let value of values) {\n      if (value = +value) {\n        sum += value;\n      }\n    }\n  } else {\n    let index = -1;\n    for (let value of values) {\n      if (value = +valueof(value, ++index, values)) {\n        sum += value;\n      }\n    }\n  }\n  return sum;\n}\n","export function initRange(domain, range) {\n  switch (arguments.length) {\n    case 0: break;\n    case 1: this.range(domain); break;\n    default: this.range(range).domain(domain); break;\n  }\n  return this;\n}\n\nexport function initInterpolator(domain, interpolator) {\n  switch (arguments.length) {\n    case 0: break;\n    case 1: {\n      if (typeof domain === \"function\") this.interpolator(domain);\n      else this.range(domain);\n      break;\n    }\n    default: {\n      this.domain(domain);\n      if (typeof interpolator === \"function\") this.interpolator(interpolator);\n      else this.range(interpolator);\n      break;\n    }\n  }\n  return this;\n}\n","import {InternMap} from \"d3-array\";\nimport {initRange} from \"./init.js\";\n\nexport const implicit = Symbol(\"implicit\");\n\nexport default function ordinal() {\n  var index = new InternMap(),\n      domain = [],\n      range = [],\n      unknown = implicit;\n\n  function scale(d) {\n    let i = index.get(d);\n    if (i === undefined) {\n      if (unknown !== implicit) return unknown;\n      index.set(d, i = domain.push(d) - 1);\n    }\n    return range[i % range.length];\n  }\n\n  scale.domain = function(_) {\n    if (!arguments.length) return domain.slice();\n    domain = [], index = new InternMap();\n    for (const value of _) {\n      if (index.has(value)) continue;\n      index.set(value, domain.push(value) - 1);\n    }\n    return scale;\n  };\n\n  scale.range = function(_) {\n    return arguments.length ? (range = Array.from(_), scale) : range.slice();\n  };\n\n  scale.unknown = function(_) {\n    return arguments.length ? (unknown = _, scale) : unknown;\n  };\n\n  scale.copy = function() {\n    return ordinal(domain, range).unknown(unknown);\n  };\n\n  initRange.apply(scale, arguments);\n\n  return scale;\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","export default function(a, b) {\n  return a = +a, b = +b, function(t) {\n    return Math.round(a * (1 - t) + b * t);\n  };\n}\n","var degrees = 180 / Math.PI;\n\nexport var identity = {\n  translateX: 0,\n  translateY: 0,\n  rotate: 0,\n  skewX: 0,\n  scaleX: 1,\n  scaleY: 1\n};\n\nexport default function(a, b, c, d, e, f) {\n  var scaleX, scaleY, skewX;\n  if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX;\n  if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX;\n  if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY;\n  if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX;\n  return {\n    translateX: e,\n    translateY: f,\n    rotate: Math.atan2(b, a) * degrees,\n    skewX: Math.atan(skewX) * degrees,\n    scaleX: scaleX,\n    scaleY: scaleY\n  };\n}\n","import decompose, {identity} from \"./decompose.js\";\n\nvar svgNode;\n\n/* eslint-disable no-undef */\nexport function parseCss(value) {\n  const m = new (typeof DOMMatrix === \"function\" ? DOMMatrix : WebKitCSSMatrix)(value + \"\");\n  return m.isIdentity ? identity : decompose(m.a, m.b, m.c, m.d, m.e, m.f);\n}\n\nexport function parseSvg(value) {\n  if (value == null) return identity;\n  if (!svgNode) svgNode = document.createElementNS(\"http://www.w3.org/2000/svg\", \"g\");\n  svgNode.setAttribute(\"transform\", value);\n  if (!(value = svgNode.transform.baseVal.consolidate())) return identity;\n  value = value.matrix;\n  return decompose(value.a, value.b, value.c, value.d, value.e, value.f);\n}\n","import number from \"../number.js\";\nimport {parseCss, parseSvg} from \"./parse.js\";\n\nfunction interpolateTransform(parse, pxComma, pxParen, degParen) {\n\n  function pop(s) {\n    return s.length ? s.pop() + \" \" : \"\";\n  }\n\n  function translate(xa, ya, xb, yb, s, q) {\n    if (xa !== xb || ya !== yb) {\n      var i = s.push(\"translate(\", null, pxComma, null, pxParen);\n      q.push({i: i - 4, x: number(xa, xb)}, {i: i - 2, x: number(ya, yb)});\n    } else if (xb || yb) {\n      s.push(\"translate(\" + xb + pxComma + yb + pxParen);\n    }\n  }\n\n  function rotate(a, b, s, q) {\n    if (a !== b) {\n      if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path\n      q.push({i: s.push(pop(s) + \"rotate(\", null, degParen) - 2, x: number(a, b)});\n    } else if (b) {\n      s.push(pop(s) + \"rotate(\" + b + degParen);\n    }\n  }\n\n  function skewX(a, b, s, q) {\n    if (a !== b) {\n      q.push({i: s.push(pop(s) + \"skewX(\", null, degParen) - 2, x: number(a, b)});\n    } else if (b) {\n      s.push(pop(s) + \"skewX(\" + b + degParen);\n    }\n  }\n\n  function scale(xa, ya, xb, yb, s, q) {\n    if (xa !== xb || ya !== yb) {\n      var i = s.push(pop(s) + \"scale(\", null, \",\", null, \")\");\n      q.push({i: i - 4, x: number(xa, xb)}, {i: i - 2, x: number(ya, yb)});\n    } else if (xb !== 1 || yb !== 1) {\n      s.push(pop(s) + \"scale(\" + xb + \",\" + yb + \")\");\n    }\n  }\n\n  return function(a, b) {\n    var s = [], // string constants and placeholders\n        q = []; // number interpolators\n    a = parse(a), b = parse(b);\n    translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q);\n    rotate(a.rotate, b.rotate, s, q);\n    skewX(a.skewX, b.skewX, s, q);\n    scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q);\n    a = b = null; // gc\n    return function(t) {\n      var i = -1, n = q.length, o;\n      while (++i < n) s[(o = q[i]).i] = o.x(t);\n      return s.join(\"\");\n    };\n  };\n}\n\nexport var interpolateTransformCss = interpolateTransform(parseCss, \"px, \", \"px)\", \"deg)\");\nexport var interpolateTransformSvg = interpolateTransform(parseSvg, \", \", \")\", \")\");\n","var epsilon2 = 1e-12;\n\nfunction cosh(x) {\n  return ((x = Math.exp(x)) + 1 / x) / 2;\n}\n\nfunction sinh(x) {\n  return ((x = Math.exp(x)) - 1 / x) / 2;\n}\n\nfunction tanh(x) {\n  return ((x = Math.exp(2 * x)) - 1) / (x + 1);\n}\n\nexport default (function zoomRho(rho, rho2, rho4) {\n\n  // p0 = [ux0, uy0, w0]\n  // p1 = [ux1, uy1, w1]\n  function zoom(p0, p1) {\n    var ux0 = p0[0], uy0 = p0[1], w0 = p0[2],\n        ux1 = p1[0], uy1 = p1[1], w1 = p1[2],\n        dx = ux1 - ux0,\n        dy = uy1 - uy0,\n        d2 = dx * dx + dy * dy,\n        i,\n        S;\n\n    // Special case for u0 ≅ u1.\n    if (d2 < epsilon2) {\n      S = Math.log(w1 / w0) / rho;\n      i = function(t) {\n        return [\n          ux0 + t * dx,\n          uy0 + t * dy,\n          w0 * Math.exp(rho * t * S)\n        ];\n      }\n    }\n\n    // General case.\n    else {\n      var d1 = Math.sqrt(d2),\n          b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),\n          b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),\n          r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),\n          r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);\n      S = (r1 - r0) / rho;\n      i = function(t) {\n        var s = t * S,\n            coshr0 = cosh(r0),\n            u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));\n        return [\n          ux0 + u * dx,\n          uy0 + u * dy,\n          w0 * coshr0 / cosh(rho * s + r0)\n        ];\n      }\n    }\n\n    i.duration = S * 1000 * rho / Math.SQRT2;\n\n    return i;\n  }\n\n  zoom.rho = function(_) {\n    var _1 = Math.max(1e-3, +_), _2 = _1 * _1, _4 = _2 * _2;\n    return zoomRho(_1, _2, _4);\n  };\n\n  return zoom;\n})(Math.SQRT2, 2, 4);\n","export default function(interpolator, n) {\n  var samples = new Array(n);\n  for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1));\n  return samples;\n}\n","export default function constants(x) {\n  return function() {\n    return x;\n  };\n}\n","export default function number(x) {\n  return +x;\n}\n","import {bisect} from \"d3-array\";\nimport {interpolate as interpolateValue, interpolateNumber, interpolateRound} from \"d3-interpolate\";\nimport constant from \"./constant.js\";\nimport number from \"./number.js\";\n\nvar unit = [0, 1];\n\nexport function identity(x) {\n  return x;\n}\n\nfunction normalize(a, b) {\n  return (b -= (a = +a))\n      ? function(x) { return (x - a) / b; }\n      : constant(isNaN(b) ? NaN : 0.5);\n}\n\nfunction clamper(a, b) {\n  var t;\n  if (a > b) t = a, a = b, b = t;\n  return function(x) { return Math.max(a, Math.min(b, x)); };\n}\n\n// normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].\n// interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b].\nfunction bimap(domain, range, interpolate) {\n  var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1];\n  if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0);\n  else d0 = normalize(d0, d1), r0 = interpolate(r0, r1);\n  return function(x) { return r0(d0(x)); };\n}\n\nfunction polymap(domain, range, interpolate) {\n  var j = Math.min(domain.length, range.length) - 1,\n      d = new Array(j),\n      r = new Array(j),\n      i = -1;\n\n  // Reverse descending domains.\n  if (domain[j] < domain[0]) {\