diff --git a/assets/css/main.css b/assets/css/main.css index 4fbf6a7..8b3ca8b 100644 --- a/assets/css/main.css +++ b/assets/css/main.css @@ -1,4 +1,7 @@ @import url(https://fonts.googleapis.com/css?family=Open+Sans:700,300); + +@import url(uplot/dist/uPlot.min.css); + @import url(../css/icons.css); * { diff --git a/assets/html/index.html b/assets/html/index.html index f2fa20b..ae2f675 100644 --- a/assets/html/index.html +++ b/assets/html/index.html @@ -6,8 +6,6 @@ - - diff --git a/assets/js/graph.js b/assets/js/graph.js index 70227a8..df1971d 100644 --- a/assets/js/graph.js +++ b/assets/js/graph.js @@ -1,4 +1,4 @@ -import uPlot from '../lib/uPlot.esm' +import uPlot from 'uplot' import { RelativeScale } from './scale' diff --git a/assets/js/servers.js b/assets/js/servers.js index e5387e6..4e3d056 100644 --- a/assets/js/servers.js +++ b/assets/js/servers.js @@ -1,4 +1,4 @@ -import uPlot from '../lib/uPlot.esm' +import uPlot from 'uplot' import { RelativeScale } from './scale' diff --git a/assets/lib/uPlot.esm.js b/assets/lib/uPlot.esm.js deleted file mode 100644 index 0c32cb9..0000000 --- a/assets/lib/uPlot.esm.js +++ /dev/null @@ -1,2640 +0,0 @@ -/** -* Copyright (c) 2020, Leon Sorokin -* All rights reserved. (MIT Licensed) -* -* uPlot.js (μPlot) -* A small, fast chart for time series, lines, areas, ohlc & bars -* https://github.com/leeoniya/uPlot (v1.0.8) -*/ - -function debounce(fn, time) { - let pending = null; - - function run() { - pending = null; - fn(); - } - - return function() { - clearTimeout(pending); - pending = setTimeout(run, time); - } -} - -// binary search for index of closest value -function closestIdx(num, arr, lo, hi) { - let mid; - lo = lo || 0; - hi = hi || arr.length - 1; - let bitwise = hi <= 2147483647; - - while (hi - lo > 1) { - mid = bitwise ? (lo + hi) >> 1 : floor((lo + hi) / 2); - - if (arr[mid] < num) - lo = mid; - else - hi = mid; - } - - if (num - arr[lo] <= arr[hi] - num) - return lo; - - return hi; -} - -function getMinMax(data, _i0, _i1) { -// console.log("getMinMax()"); - - let _min = inf; - let _max = -inf; - - for (let i = _i0; i <= _i1; i++) { - if (data[i] != null) { - _min = min(_min, data[i]); - _max = max(_max, data[i]); - } - } - - return [_min, _max]; -} - -// this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below -// TODO: also account for incrs when snapping to ensure top of axis gets a tick & value -function rangeNum(min, max, mult, extra) { - // auto-scale Y - const delta = max - min; - const mag = log10(delta || abs(max) || 1); - const exp = floor(mag); - const incr = pow(10, exp) * mult; - const buf = delta == 0 ? incr : 0; - - let snappedMin = round6(incrRoundDn(min - buf, incr)); - let snappedMax = round6(incrRoundUp(max + buf, incr)); - - if (extra) { - // for flat data, always use 0 as one chart extreme & place data in center - if (delta == 0) { - if (max > 0) { - snappedMin = 0; - snappedMax = max * 2; - } - else if (max < 0) { - snappedMax = 0; - snappedMin = min * 2; - } - } - else { - // if buffer is too small, increase it - if (snappedMax - max < incr) - snappedMax += incr; - - if (min - snappedMin < incr) - snappedMin -= incr; - - // if original data never crosses 0, use 0 as one chart extreme - if (min >= 0 && snappedMin < 0) - snappedMin = 0; - - if (max <= 0 && snappedMax > 0) - snappedMax = 0; - } - } - - return [snappedMin, snappedMax]; -} - -const M = Math; - -const abs = M.abs; -const floor = M.floor; -const round = M.round; -const ceil = M.ceil; -const min = M.min; -const max = M.max; -const pow = M.pow; -const log10 = M.log10; -const PI = M.PI; - -const inf = Infinity; - -function incrRound(num, incr) { - return round(num/incr)*incr; -} - -function clamp(num, _min, _max) { - return min(max(num, _min), _max); -} - -function fnOrSelf(v) { - return typeof v == "function" ? v : () => v; -} - -function retArg2(a, b) { - return b; -} - -function incrRoundUp(num, incr) { - return ceil(num/incr)*incr; -} - -function incrRoundDn(num, incr) { - return floor(num/incr)*incr; -} - -function round3(val) { - return round(val * 1e3) / 1e3; -} - -function round6(val) { - return round(val * 1e6) / 1e6; -} - -//export const assign = Object.assign; - -const isArr = Array.isArray; - -function isStr(v) { - return typeof v === 'string'; -} - -function isObj(v) { - return typeof v === 'object' && v !== null; -} - -function copy(o) { - let out; - - if (isArr(o)) - out = o.map(copy); - else if (isObj(o)) { - out = {}; - for (var k in o) - out[k] = copy(o[k]); - } - else - out = o; - - return out; -} - -function assign(targ) { - let args = arguments; - - for (let i = 1; i < args.length; i++) { - let src = args[i]; - - for (let key in src) { - if (isObj(targ[key])) - assign(targ[key], copy(src[key])); - else - targ[key] = copy(src[key]); - } - } - - return targ; -} - -const WIDTH = "width"; -const HEIGHT = "height"; -const TOP = "top"; -const BOTTOM = "bottom"; -const LEFT = "left"; -const RIGHT = "right"; -const firstChild = "firstChild"; -const createElement = "createElement"; -const hexBlack = "#000"; -const classList = "classList"; - -const mousemove = "mousemove"; -const mousedown = "mousedown"; -const mouseup = "mouseup"; -const mouseenter = "mouseenter"; -const mouseleave = "mouseleave"; -const dblclick = "dblclick"; -const resize = "resize"; -const scroll = "scroll"; - -const rAF = requestAnimationFrame; -const doc = document; -const win = window; -const pxRatio = devicePixelRatio; - -function addClass(el, c) { - c != null && el[classList].add(c); -} - -function remClass(el, c) { - el[classList].remove(c); -} - -function setStylePx(el, name, value) { - el.style[name] = value + "px"; -} - -function placeTag(tag, cls, targ, refEl) { - let el = doc[createElement](tag); - - if (cls != null) - addClass(el, cls); - - if (targ != null) - targ.insertBefore(el, refEl); - - return el; -} - -function placeDiv(cls, targ) { - return placeTag("div", cls, targ); -} - -function trans(el, xPos, yPos) { - el.style.transform = "translate(" + xPos + "px," + yPos + "px)"; -} - -const evOpts = {passive: true}; - -function on(ev, el, cb) { - el.addEventListener(ev, cb, evOpts); -} - -function off(ev, el, cb) { - el.removeEventListener(ev, cb, evOpts); -} - -const months = [ - "January", - "February", - "March", - "April", - "May", - "June", - "July", - "August", - "September", - "October", - "November", - "December", -]; - -const days = [ - "Sunday", - "Monday", - "Tuesday", - "Wednesday", - "Thursday", - "Friday", - "Saturday", -]; - -function slice3(str) { - return str.slice(0, 3); -} - -const days3 = days.map(slice3); - -const months3 = months.map(slice3); - -const engNames = { - MMMM: months, - MMM: months3, - WWWW: days, - WWW: days3, -}; - -function zeroPad2(int) { - return (int < 10 ? '0' : '') + int; -} - -function zeroPad3(int) { - return (int < 10 ? '00' : int < 100 ? '0' : '') + int; -} - -/* -function suffix(int) { - let mod10 = int % 10; - - return int + ( - mod10 == 1 && int != 11 ? "st" : - mod10 == 2 && int != 12 ? "nd" : - mod10 == 3 && int != 13 ? "rd" : "th" - ); -} -*/ - -const getFullYear = 'getFullYear'; -const getMonth = 'getMonth'; -const getDate = 'getDate'; -const getDay = 'getDay'; -const getHours = 'getHours'; -const getMinutes = 'getMinutes'; -const getSeconds = 'getSeconds'; -const getMilliseconds = 'getMilliseconds'; - -const subs = { - // 2019 - YYYY: d => d[getFullYear](), - // 19 - YY: d => (d[getFullYear]()+'').slice(2), - // July - MMMM: (d, names) => names.MMMM[d[getMonth]()], - // Jul - MMM: (d, names) => names.MMM[d[getMonth]()], - // 07 - MM: d => zeroPad2(d[getMonth]()+1), - // 7 - M: d => d[getMonth]()+1, - // 09 - DD: d => zeroPad2(d[getDate]()), - // 9 - D: d => d[getDate](), - // Monday - WWWW: (d, names) => names.WWWW[d[getDay]()], - // Mon - WWW: (d, names) => names.WWW[d[getDay]()], - // 03 - HH: d => zeroPad2(d[getHours]()), - // 3 - H: d => d[getHours](), - // 9 (12hr, unpadded) - h: d => {let h = d[getHours](); return h == 0 ? 12 : h > 12 ? h - 12 : h;}, - // AM - AA: d => d[getHours]() >= 12 ? 'PM' : 'AM', - // am - aa: d => d[getHours]() >= 12 ? 'pm' : 'am', - // a - a: d => d[getHours]() >= 12 ? 'p' : 'a', - // 09 - mm: d => zeroPad2(d[getMinutes]()), - // 9 - m: d => d[getMinutes](), - // 09 - ss: d => zeroPad2(d[getSeconds]()), - // 9 - s: d => d[getSeconds](), - // 374 - fff: d => zeroPad3(d[getMilliseconds]()), -}; - -function fmtDate(tpl, names) { - names = names || engNames; - let parts = []; - - let R = /\{([a-z]+)\}|[^{]+/gi, m; - - while (m = R.exec(tpl)) - parts.push(m[0][0] == '{' ? subs[m[1]] : m[0]); - - return d => { - let out = ''; - - for (let i = 0; i < parts.length; i++) - out += typeof parts[i] == "string" ? parts[i] : parts[i](d, names); - - return out; - } -} - -// https://stackoverflow.com/questions/15141762/how-to-initialize-a-javascript-date-to-a-particular-time-zone/53652131#53652131 -function tzDate(date, tz) { - let date2 = new Date(date.toLocaleString('en-US', {timeZone: tz})); - date2.setMilliseconds(date[getMilliseconds]()); - return date2; -} - -//export const series = []; - -// default formatters: - -function genIncrs(minExp, maxExp, mults) { - let incrs = []; - - for (let exp = minExp; exp < maxExp; exp++) { - for (let i = 0; i < mults.length; i++) { - let incr = mults[i] * pow(10, exp); - incrs.push(+incr.toFixed(abs(exp))); - } - } - - return incrs; -} - -const incrMults = [1,2,5]; - -const decIncrs = genIncrs(-12, 0, incrMults); - -const intIncrs = genIncrs(0, 12, incrMults); - -const numIncrs = decIncrs.concat(intIncrs); - -let s = 1, - m = 60, - h = m * m, - d = h * 24, - mo = d * 30, - y = d * 365; - -// starting below 1e-3 is a hack to allow the incr finder to choose & bail out at incr < 1ms -const timeIncrs = [5e-4].concat(genIncrs(-3, 0, incrMults), [ - // minute divisors (# of secs) - 1, - 5, - 10, - 15, - 30, - // hour divisors (# of mins) - m, - m * 5, - m * 10, - m * 15, - m * 30, - // day divisors (# of hrs) - h, - h * 2, - h * 3, - h * 4, - h * 6, - h * 8, - h * 12, - // month divisors TODO: need more? - d, - d * 2, - d * 3, - d * 4, - d * 5, - d * 6, - d * 7, - d * 8, - d * 9, - d * 10, - d * 15, - // year divisors (# months, approx) - mo, - mo * 2, - mo * 3, - mo * 4, - mo * 6, - // century divisors - y, - y * 2, - y * 5, - y * 10, - y * 25, - y * 50, - y * 100, -]); - -function timeAxisStamps(stampCfg, fmtDate) { - return stampCfg.map(s => [ - s[0], - fmtDate(s[1]), - s[2], - fmtDate(s[4] ? s[1] + s[3] : s[3]), - ]); -} - -const yyyy = "{YYYY}"; -const NLyyyy = "\n" + yyyy; -const md = "{M}/{D}"; -const NLmd = "\n" + md; - -const aa = "{aa}"; -const hmm = "{h}:{mm}"; -const hmmaa = hmm + aa; -const ss = ":{ss}"; - -// [0]: minimum num secs in the tick incr -// [1]: normal tick format -// [2]: when a differing is encountered - 1: sec, 2: min, 3: hour, 4: day, 5: week, 6: month, 7: year -// [3]: use a longer more contextual format -// [4]: modes: 0: replace [1] -> [3], 1: concat [1] + [3] -const _timeAxisStamps = [ - [y, yyyy, 7, "", 1], - [d * 28, "{MMM}", 7, NLyyyy, 1], - [d, md, 7, NLyyyy, 1], - [h, "{h}" + aa, 4, NLmd, 1], - [m, hmmaa, 4, NLmd, 1], - [s, ss, 2, NLmd + " " + hmmaa, 1], - [1e-3, ss + ".{fff}", 2, NLmd + " " + hmmaa, 1], -]; - -// TODO: will need to accept spaces[] and pull incr into the loop when grid will be non-uniform, eg for log scales. -// currently we ignore this for months since they're *nearly* uniform and the added complexity is not worth it -function timeAxisVals(tzDate, stamps) { - return (self, splits, space, incr) => { - let s = stamps.find(e => incr >= e[0]); - - // these track boundaries when a full label is needed again - let prevYear = null; - let prevDate = null; - let prevMinu = null; - - return splits.map((split, i) => { - let date = tzDate(split); - - let newYear = date[getFullYear](); - let newDate = date[getDate](); - let newMinu = date[getMinutes](); - - let diffYear = newYear != prevYear; - let diffDate = newDate != prevDate; - let diffMinu = newMinu != prevMinu; - - let stamp = s[2] == 7 && diffYear || s[2] == 4 && diffDate || s[2] == 2 && diffMinu ? s[3] : s[1]; - - prevYear = newYear; - prevDate = newDate; - prevMinu = newMinu; - - return stamp(date); - }); - } -} - -function mkDate(y, m, d) { - return new Date(y, m, d); -} - -// the ensures that axis ticks, values & grid are aligned to logical temporal breakpoints and not an arbitrary timestamp -// https://www.timeanddate.com/time/dst/ -// https://www.timeanddate.com/time/dst/2019.html -// https://www.epochconverter.com/timezones -function timeAxisSplits(tzDate) { - return (self, scaleMin, scaleMax, incr, pctSpace) => { - let splits = []; - let isMo = incr >= mo && incr < y; - - // get the timezone-adjusted date - let minDate = tzDate(scaleMin); - let minDateTs = minDate / 1e3; - - // get ts of 12am (this lands us at or before the original scaleMin) - let minMin = mkDate(minDate[getFullYear](), minDate[getMonth](), isMo ? 1 : minDate[getDate]()); - let minMinTs = minMin / 1e3; - - if (isMo) { - let moIncr = incr / mo; - // let tzOffset = scaleMin - minDateTs; // needed? - let split = minDateTs == minMinTs ? minDateTs : mkDate(minMin[getFullYear](), minMin[getMonth]() + moIncr, 1) / 1e3; - let splitDate = new Date(split * 1e3); - let baseYear = splitDate[getFullYear](); - let baseMonth = splitDate[getMonth](); - - for (let i = 0; split <= scaleMax; i++) { - let next = mkDate(baseYear, baseMonth + moIncr * i, 1); - let offs = next - tzDate(next / 1e3); - - split = (+next + offs) / 1e3; - - if (split <= scaleMax) - splits.push(split); - } - } - else { - let incr0 = incr >= d ? d : incr; - let tzOffset = floor(scaleMin) - floor(minDateTs); - let split = minMinTs + tzOffset + incrRoundUp(minDateTs - minMinTs, incr0); - splits.push(split); - - let date0 = tzDate(split); - - let prevHour = date0[getHours]() + (date0[getMinutes]() / m) + (date0[getSeconds]() / h); - let incrHours = incr / h; - - while (1) { - split = round3(split + incr); - - let expectedHour = floor(round6(prevHour + incrHours)) % 24; - let splitDate = tzDate(split); - let actualHour = splitDate.getHours(); - - let dstShift = actualHour - expectedHour; - - if (dstShift > 1) - dstShift = -1; - - split -= dstShift * h; - - if (split > scaleMax) - break; - - prevHour = (prevHour + incrHours) % 24; - - // add a tick only if it's further than 70% of the min allowed label spacing - let prevSplit = splits[splits.length - 1]; - let pctIncr = round3((split - prevSplit) / incr); - - if (pctIncr * pctSpace >= .7) - splits.push(split); - } - } - - return splits; - } -} - -function timeSeriesStamp(stampCfg, fmtDate) { - return fmtDate(stampCfg); -} -const _timeSeriesStamp = '{YYYY}-{MM}-{DD} {h}:{mm}{aa}'; - -function timeSeriesVal(tzDate, stamp) { - return (self, val) => stamp(tzDate(val)); -} - -function cursorPoint(self, si) { - let s = self.series[si]; - - let pt = placeDiv(); - - pt.style.background = s.stroke || hexBlack; - - let dia = ptDia(s.width, 1); - let mar = (dia - 1) / -2; - - setStylePx(pt, WIDTH, dia); - setStylePx(pt, HEIGHT, dia); - setStylePx(pt, "marginLeft", mar); - setStylePx(pt, "marginTop", mar); - - return pt; -} - -const cursorOpts = { - show: true, - x: true, - y: true, - lock: false, - points: { - show: cursorPoint, - }, - - drag: { - setScale: true, - x: true, - y: false, - }, - - focus: { - prox: -1, - }, - - locked: false, - left: -10, - top: -10, - idx: null, -}; - -const grid = { - show: true, - stroke: "rgba(0,0,0,0.07)", - width: 2, -// dash: [], -}; - -const ticks = assign({}, grid, {size: 10}); - -const font = '12px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"'; -const labelFont = "bold " + font; -const lineMult = 1.5; // font-size multiplier - -const xAxisOpts = { - type: "x", - show: true, - scale: "x", - space: 50, - gap: 5, - size: 50, - labelSize: 30, - labelFont, - side: 2, -// class: "x-vals", -// incrs: timeIncrs, -// values: timeVals, - grid, - ticks, - font, - rotate: 0, -}; - -const numSeriesLabel = "Value"; -const timeSeriesLabel = "Time"; - -const xSeriesOpts = { - show: true, - scale: "x", -// label: "Time", -// value: v => stamp(new Date(v * 1e3)), - - // internal caches - min: inf, - max: -inf, - idxs: [], -}; - -// alternative: https://stackoverflow.com/a/2254896 -let fmtNum = new Intl.NumberFormat(navigator.language); - -function numAxisVals(self, splits, space, incr) { - return splits.map(fmtNum.format); -} - -function numAxisSplits(self, scaleMin, scaleMax, incr, pctSpace, forceMin) { - scaleMin = forceMin ? scaleMin : +incrRoundUp(scaleMin, incr).toFixed(12); - - let splits = []; - - for (let val = scaleMin; val <= scaleMax; val = +(val + incr).toFixed(12)) - splits.push(val); - - return splits; -} - -function numSeriesVal(self, val) { - return val; -} - -const yAxisOpts = { - type: "y", - show: true, - scale: "y", - space: 40, - gap: 5, - size: 50, - labelSize: 30, - labelFont, - side: 3, -// class: "y-vals", -// incrs: numIncrs, -// values: (vals, space) => vals, - grid, - ticks, - font, - rotate: 0, -}; - -// takes stroke width -function ptDia(width, mult) { - return max(round3(5 * mult), round3(width * mult) * 2 - 1); -} - -function seriesPoints(self, si) { - const dia = ptDia(self.series[si].width, pxRatio); - let maxPts = self.bbox.width / dia / 2; - let idxs = self.series[0].idxs; - return idxs[1] - idxs[0] <= maxPts; -} - -const ySeriesOpts = { -// type: "n", - scale: "y", - show: true, - band: false, - alpha: 1, - points: { - show: seriesPoints, - // stroke: "#000", - // fill: "#fff", - // width: 1, - // size: 10, - }, -// label: "Value", -// value: v => v, - values: null, - - // internal caches - min: inf, - max: -inf, - idxs: [], - - path: null, - clip: null, -}; - -const xScaleOpts = { - time: true, - auto: false, - distr: 1, - min: inf, - max: -inf, -}; - -const yScaleOpts = assign({}, xScaleOpts, { - time: false, - auto: true, -}); - -const syncs = {}; - -function _sync(opts) { - let clients = []; - - return { - sub(client) { - clients.push(client); - }, - unsub(client) { - clients = clients.filter(c => c != client); - }, - pub(type, self, x, y, w, h, i) { - if (clients.length > 1) { - clients.forEach(client => { - client != self && client.pub(type, self, x, y, w, h, i); - }); - } - } - }; -} - -function setDefaults(d, xo, yo) { - return [d[0], d[1]].concat(d.slice(2)).map((o, i) => setDefault(o, i, xo, yo)); -} - -function setDefault(o, i, xo, yo) { - return assign({}, (i == 0 || o && o.side % 2 == 0 ? xo : yo), o); -} - -function getYPos(val, scale, hgt, top) { - let pctY = (val - scale.min) / (scale.max - scale.min); - return top + (1 - pctY) * hgt; -} - -function getXPos(val, scale, wid, lft) { - let pctX = (val - scale.min) / (scale.max - scale.min); - return lft + pctX * wid; -} - -function snapTimeX(self, dataMin, dataMax) { - return [dataMin, dataMax > dataMin ? dataMax : dataMax + 86400]; -} - -function snapNumX(self, dataMin, dataMax) { - const delta = dataMax - dataMin; - - if (delta == 0) { - const mag = log10(delta || abs(dataMax) || 1); - const exp = floor(mag) + 1; - return [dataMin, incrRoundUp(dataMax, pow(10, exp))]; - } - else - return [dataMin, dataMax]; -} - -// this ensures that non-temporal/numeric y-axes get multiple-snapped padding added above/below -// TODO: also account for incrs when snapping to ensure top of axis gets a tick & value -function snapNumY(self, dataMin, dataMax) { - return rangeNum(dataMin, dataMax, 0.2, true); -} - -// dim is logical (getClientBoundingRect) pixels, not canvas pixels -function findIncr(valDelta, incrs, dim, minSpace) { - let pxPerUnit = dim / valDelta; - - for (var i = 0; i < incrs.length; i++) { - let space = incrs[i] * pxPerUnit; - - if (space >= minSpace) - return [incrs[i], space]; - } -} - -function filtMouse(e) { - return e.button == 0; -} - -function pxRatioFont(font) { - let fontSize; - font = font.replace(/\d+/, m => (fontSize = round(m * pxRatio))); - return [font, fontSize]; -} - -function uPlot(opts, data, then) { - const self = {}; - - const root = self.root = placeDiv("uplot"); - - if (opts.id != null) - root.id = opts.id; - - addClass(root, opts.class); - - if (opts.title) { - let title = placeDiv("title", root); - title.textContent = opts.title; - } - - const can = placeTag("canvas"); - const ctx = self.ctx = can.getContext("2d"); - - const wrap = placeDiv("wrap", root); - const under = placeDiv("under", wrap); - wrap.appendChild(can); - const over = placeDiv("over", wrap); - - opts = copy(opts); - - (opts.plugins || []).forEach(p => { - if (p.opts) - opts = p.opts(self, opts) || opts; - }); - - let ready = false; - - const series = setDefaults(opts.series, xSeriesOpts, ySeriesOpts); - const axes = setDefaults(opts.axes || [], xAxisOpts, yAxisOpts); - const scales = (opts.scales = opts.scales || {}); - - const gutters = assign({ - x: round(yAxisOpts.size / 2), - y: round(xAxisOpts.size / 3), - }, opts.gutters); - -// self.tz = opts.tz || Intl.DateTimeFormat().resolvedOptions().timeZone; - const _tzDate = (opts.tzDate || (ts => new Date(ts * 1e3))); - const _fmtDate = (opts.fmtDate || fmtDate); - - const _timeAxisSplits = timeAxisSplits(_tzDate); - const _timeAxisVals = timeAxisVals(_tzDate, timeAxisStamps(_timeAxisStamps, _fmtDate)); - const _timeSeriesVal = timeSeriesVal(_tzDate, timeSeriesStamp(_timeSeriesStamp, _fmtDate)); - - self.series = series; - self.axes = axes; - self.scales = scales; - - const pendScales = {}; - - // explicitly-set initial scales - for (let k in scales) { - let sc = scales[k]; - - if (sc.min != null || sc.max != null) - pendScales[k] = {min: sc.min, max: sc.max}; - } - - const legend = assign({show: true}, opts.legend); - const showLegend = legend.show; - - let legendEl; - let legendRows = []; - let legendCols; - let multiValLegend = false; - - if (showLegend) { - legendEl = placeTag("table", "legend", root); - - const getMultiVals = series[1].values; - multiValLegend = getMultiVals != null; - - if (multiValLegend) { - let head = placeTag("tr", "labels", legendEl); - placeTag("th", null, head); - legendCols = getMultiVals(self, 1, 0); - - for (var key in legendCols) - placeTag("th", null, head).textContent = key; - } - else { - legendCols = {_: 0}; - addClass(legendEl, "inline"); - } - } - - function initLegendRow(s, i) { - if (i == 0 && multiValLegend) - return null; - - let _row = []; - - let row = placeTag("tr", "series", legendEl, legendEl.childNodes[i]); - - addClass(row, s.class); - - if (!s.show) - addClass(row, "off"); - - let label = placeTag("th", null, row); - - let indic = placeDiv("ident", label); - s.width && (indic.style.borderColor = s.stroke); - indic.style.backgroundColor = s.fill; - - let text = placeDiv("text", label); - text.textContent = s.label; - - if (i > 0) { - on("click", label, e => { - if ( cursor.locked) - return; - - filtMouse(e) && setSeries(series.indexOf(s), {show: !s.show}, syncOpts.setSeries); - }); - - if (cursorFocus) { - on(mouseenter, label, e => { - if (cursor.locked) - return; - - setSeries(series.indexOf(s), {focus: true}, syncOpts.setSeries); - }); - } - } - - for (var key in legendCols) { - let v = placeTag("td", null, row); - v.textContent = "--"; - _row.push(v); - } - - return _row; - } - - const cursor = (self.cursor = assign({}, cursorOpts, opts.cursor)); - - (cursor.points.show = fnOrSelf(cursor.points.show)); - - const focus = self.focus = assign({}, opts.focus || {alpha: 0.3}, cursor.focus); - const cursorFocus = focus.prox >= 0; - - // series-intersection markers - let cursorPts = [null]; - - function initCursorPt(s, si) { - if (si > 0) { - let pt = cursor.points.show(self, si); - - if (pt) { - addClass(pt, "cursor-pt"); - addClass(pt, s.class); - trans(pt, -10, -10); - over.insertBefore(pt, cursorPts[si]); - - return pt; - } - } - } - - function initSeries(s, i) { - // init scales & defaults - const scKey = s.scale; - - const sc = scales[scKey] = assign({}, (i == 0 ? xScaleOpts : yScaleOpts), scales[scKey]); - - let isTime = sc.time; - - sc.range = fnOrSelf(sc.range || (isTime ? snapTimeX : i == 0 ? snapNumX : snapNumY)); - - s.spanGaps = s.spanGaps === true ? retArg2 : fnOrSelf(s.spanGaps || []); - - let sv = s.value; - s.value = isTime ? (isStr(sv) ? timeSeriesVal(_tzDate, timeSeriesStamp(sv, _fmtDate)) : sv || _timeSeriesVal) : sv || numSeriesVal; - s.label = s.label || (isTime ? timeSeriesLabel : numSeriesLabel); - - if (i > 0) { - s.width = s.width == null ? 1 : s.width; - s.paths = s.paths || ( buildPaths); - let _ptDia = ptDia(s.width, 1); - s.points = assign({}, { - size: _ptDia, - width: max(1, _ptDia * .2), - }, s.points); - s.points.show = fnOrSelf(s.points.show); - s._paths = null; - } - - if (showLegend) - legendRows.splice(i, 0, initLegendRow(s, i)); - - if ( cursor.show) { - let pt = initCursorPt(s, i); - pt && cursorPts.splice(i, 0, pt); - } - } - - function addSeries(opts, si) { - si = si == null ? series.length : si; - - opts = setDefault(opts, si, xSeriesOpts, ySeriesOpts); - series.splice(si, 0, opts); - initSeries(series[si], si); - } - - self.addSeries = addSeries; - - function delSeries(i) { - series.splice(i, 1); - legendRows.splice(i, 1)[0][0].parentNode.remove(); - cursorPts.splice(i, 1)[0].remove(); - - // TODO: de-init no-longer-needed scales? - } - - self.delSeries = delSeries; - - series.forEach(initSeries); - - // dependent scales inherit - for (let k in scales) { - let sc = scales[k]; - - if (sc.from != null) - scales[k] = assign({}, scales[sc.from], sc); - } - - const xScaleKey = series[0].scale; - const xScaleDistr = scales[xScaleKey].distr; - - function initAxis(axis, i) { - if (axis.show) { - let isVt = axis.side % 2; - - let sc = scales[axis.scale]; - - // this can occur if all series specify non-default scales - if (sc == null) { - axis.scale = isVt ? series[1].scale : xScaleKey; - sc = scales[axis.scale]; - } - - // also set defaults for incrs & values based on axis distr - let isTime = sc.time; - - axis.space = fnOrSelf(axis.space); - axis.rotate = fnOrSelf(axis.rotate); - axis.incrs = fnOrSelf(axis.incrs || ( sc.distr == 2 ? intIncrs : (isTime ? timeIncrs : numIncrs))); - axis.split = fnOrSelf(axis.split || (isTime && sc.distr == 1 ? _timeAxisSplits : numAxisSplits)); - let av = axis.values; - axis.values = isTime ? (isArr(av) ? timeAxisVals(_tzDate, timeAxisStamps(av, _fmtDate)) : av || _timeAxisVals) : av || numAxisVals; - - axis.font = pxRatioFont(axis.font); - axis.labelFont = pxRatioFont(axis.labelFont); - } - } - - // set axis defaults - axes.forEach(initAxis); - - let dataLen; - - // rendered data window - let i0 = null; - let i1 = null; - const idxs = series[0].idxs; - - let data0 = null; - - function setData(_data, _resetScales) { - self.data = _data; - data = _data.slice(); - data0 = data[0]; - dataLen = data0.length; - - if (xScaleDistr == 2) - data[0] = data0.map((v, i) => i); - - resetYSeries(); - - fire("setData"); - - _resetScales !== false && autoScaleX(); - } - - self.setData = setData; - - function autoScaleX() { - i0 = idxs[0] = 0; - i1 = idxs[1] = dataLen - 1; - - let _min = xScaleDistr == 2 ? i0 : data[0][i0], - _max = xScaleDistr == 2 ? i1 : data[0][i1]; - - _setScale(xScaleKey, _min, _max); - } - - function setCtxStyle(stroke, width, dash, fill) { - ctx.strokeStyle = stroke || hexBlack; - ctx.lineWidth = width; - ctx.lineJoin = "round"; - ctx.setLineDash(dash || []); - ctx.fillStyle = fill || hexBlack; - } - - let fullWidCss; - let fullHgtCss; - - let plotWidCss; - let plotHgtCss; - - // plot margins to account for axes - let plotLftCss; - let plotTopCss; - - let plotLft; - let plotTop; - let plotWid; - let plotHgt; - - self.bbox = {}; - - function _setSize(width, height) { - self.width = fullWidCss = plotWidCss = width; - self.height = fullHgtCss = plotHgtCss = height; - plotLftCss = plotTopCss = 0; - - calcPlotRect(); - calcAxesRects(); - - let bb = self.bbox; - - plotLft = bb[LEFT] = incrRound(plotLftCss * pxRatio, 0.5); - plotTop = bb[TOP] = incrRound(plotTopCss * pxRatio, 0.5); - plotWid = bb[WIDTH] = incrRound(plotWidCss * pxRatio, 0.5); - plotHgt = bb[HEIGHT] = incrRound(plotHgtCss * pxRatio, 0.5); - - setStylePx(under, LEFT, plotLftCss); - setStylePx(under, TOP, plotTopCss); - setStylePx(under, WIDTH, plotWidCss); - setStylePx(under, HEIGHT, plotHgtCss); - - setStylePx(over, LEFT, plotLftCss); - setStylePx(over, TOP, plotTopCss); - setStylePx(over, WIDTH, plotWidCss); - setStylePx(over, HEIGHT, plotHgtCss); - - setStylePx(wrap, WIDTH, fullWidCss); - setStylePx(wrap, HEIGHT, fullHgtCss); - - can[WIDTH] = round(fullWidCss * pxRatio); - can[HEIGHT] = round(fullHgtCss * pxRatio); - - syncRect(); - - ready && _setScale(xScaleKey, scales[xScaleKey].min, scales[xScaleKey].max); - - ready && fire("setSize"); - } - - function setSize({width, height}) { - _setSize(width, height); - } - - self.setSize = setSize; - - // accumulate axis offsets, reduce canvas width - function calcPlotRect() { - // easements for edge labels - let hasTopAxis = false; - let hasBtmAxis = false; - let hasRgtAxis = false; - let hasLftAxis = false; - - axes.forEach((axis, i) => { - if (axis.show) { - let {side, size} = axis; - let isVt = side % 2; - let labelSize = axis.labelSize = (axis.label != null ? (axis.labelSize || 30) : 0); - - let fullSize = size + labelSize; - - if (fullSize > 0) { - if (isVt) { - plotWidCss -= fullSize; - - if (side == 3) { - plotLftCss += fullSize; - hasLftAxis = true; - } - else - hasRgtAxis = true; - } - else { - plotHgtCss -= fullSize; - - if (side == 0) { - plotTopCss += fullSize; - hasTopAxis = true; - } - else - hasBtmAxis = true; - } - } - } - }); - - // hz gutters - if (hasTopAxis || hasBtmAxis) { - if (!hasRgtAxis) - plotWidCss -= gutters.x; - if (!hasLftAxis) { - plotWidCss -= gutters.x; - plotLftCss += gutters.x; - } - } - - // vt gutters - if (hasLftAxis || hasRgtAxis) { - if (!hasBtmAxis) - plotHgtCss -= gutters.y; - if (!hasTopAxis) { - plotHgtCss -= gutters.y; - plotTopCss += gutters.y; - } - } - } - - function calcAxesRects() { - // will accum + - let off1 = plotLftCss + plotWidCss; - let off2 = plotTopCss + plotHgtCss; - // will accum - - let off3 = plotLftCss; - let off0 = plotTopCss; - - function incrOffset(side, size) { - - switch (side) { - case 1: off1 += size; return off1 - size; - case 2: off2 += size; return off2 - size; - case 3: off3 -= size; return off3 + size; - case 0: off0 -= size; return off0 + size; - } - } - - axes.forEach((axis, i) => { - let side = axis.side; - - axis._pos = incrOffset(side, axis.size); - - if (axis.label != null) - axis._lpos = incrOffset(side, axis.labelSize); - }); - } - - function setScales() { - if (inBatch) { - shouldSetScales = true; - return; - } - - // log("setScales()", arguments); - - if (dataLen > 0) { - // wip scales - let wipScales = copy(scales); - - for (let k in wipScales) { - let wsc = wipScales[k]; - let psc = pendScales[k]; - - if (psc != null) { - assign(wsc, psc); - - // explicitly setting the x-scale invalidates everything (acts as redraw) - if (k == xScaleKey) - resetYSeries(); - } - else if (k != xScaleKey) { - wsc.min = inf; - wsc.max = -inf; - } - } - - // pre-range y-scales from y series' data values - series.forEach((s, i) => { - let k = s.scale; - let wsc = wipScales[k]; - - // setting the x scale invalidates everything - if (i == 0) { - let minMax = wsc.range(self, wsc.min, wsc.max); - - wsc.min = minMax[0]; - wsc.max = minMax[1]; - - i0 = closestIdx(wsc.min, data[0]); - i1 = closestIdx(wsc.max, data[0]); - - // closest indices can be outside of view - if (data[0][i0] < wsc.min) - i0++; - if (data[0][i1] > wsc.max) - i1--; - - s.min = data0[i0]; - s.max = data0[i1]; - } - else if (s.show && pendScales[k] == null) { - // only run getMinMax() for invalidated series data, else reuse - let minMax = s.min == inf ? (wsc.auto ? getMinMax(data[i], i0, i1) : [0,100]) : [s.min, s.max]; - - // initial min/max - wsc.min = min(wsc.min, s.min = minMax[0]); - wsc.max = max(wsc.max, s.max = minMax[1]); - } - - s.idxs[0] = i0; - s.idxs[1] = i1; - }); - - // range independent scales - for (let k in wipScales) { - let wsc = wipScales[k]; - - if (wsc.from == null && wsc.min != inf && pendScales[k] == null) { - let minMax = wsc.range(self, wsc.min, wsc.max); - wsc.min = minMax[0]; - wsc.max = minMax[1]; - } - } - - // range dependent scales - for (let k in wipScales) { - let wsc = wipScales[k]; - - if (wsc.from != null) { - let base = wipScales[wsc.from]; - - if (base.min != inf) { - let minMax = wsc.range(self, base.min, base.max); - wsc.min = minMax[0]; - wsc.max = minMax[1]; - } - } - } - - let changed = {}; - - for (let k in wipScales) { - let wsc = wipScales[k]; - let sc = scales[k]; - - if (sc.min != wsc.min || sc.max != wsc.max) { - sc.min = wsc.min; - sc.max = wsc.max; - changed[k] = true; - } - - pendScales[k] = null; - } - - // invalidate paths of all series on changed scales - series.forEach(s => { - if (changed[s.scale]) - s._paths = null; - }); - - for (let k in changed) - fire("setScale", k); - } - - cursor.show && updateCursor(); - } - - // TODO: drawWrap(si, drawPoints) (save, restore, translate, clip) - - function drawPoints(si) { - // log("drawPoints()", arguments); - - let s = series[si]; - let p = s.points; - - const width = round3(s[WIDTH] * pxRatio); - const offset = (width % 2) / 2; - const isStroked = p.width > 0; - - let rad = (p.size - p.width) / 2 * pxRatio; - let dia = round3(rad * 2); - - ctx.translate(offset, offset); - - ctx.save(); - - ctx.beginPath(); - ctx.rect( - plotLft - dia, - plotTop - dia, - plotWid + dia * 2, - plotHgt + dia * 2, - ); - ctx.clip(); - - ctx.globalAlpha = s.alpha; - - const path = new Path2D(); - - for (let pi = i0; pi <= i1; pi++) { - if (data[si][pi] != null) { - let x = round(getXPos(data[0][pi], scales[xScaleKey], plotWid, plotLft)); - let y = round(getYPos(data[si][pi], scales[s.scale], plotHgt, plotTop)); - - path.moveTo(x + rad, y); - path.arc(x, y, rad, 0, PI * 2); - } - } - - setCtxStyle( - p.stroke || s.stroke || hexBlack, - width, - null, - p.fill || (isStroked ? "#fff" : s.stroke || hexBlack), - ); - - ctx.fill(path); - isStroked && ctx.stroke(path); - - ctx.globalAlpha = 1; - - ctx.restore(); - - ctx.translate(-offset, -offset); - } - - // grabs the nearest indices with y data outside of x-scale limits - function getOuterIdxs(ydata) { - let _i0 = clamp(i0 - 1, 0, dataLen - 1); - let _i1 = clamp(i1 + 1, 0, dataLen - 1); - - while (ydata[_i0] == null && _i0 > 0) - _i0--; - - while (ydata[_i1] == null && _i1 < dataLen - 1) - _i1++; - - return [_i0, _i1]; - } - - let dir = 1; - - function drawSeries() { - // path building loop must be before draw loop to ensure that all bands are fully constructed - series.forEach((s, i) => { - if (i > 0 && s.show && s._paths == null) { - let _idxs = getOuterIdxs(data[i]); - s._paths = s.paths(self, i, _idxs[0], _idxs[1]); - } - }); - - series.forEach((s, i) => { - if (i > 0 && s.show) { - if (s._paths) - drawPath(i); - - if (s.points.show(self, i, i0, i1)) - drawPoints(i); - - fire("drawSeries", i); - } - }); - } - - function drawPath(si) { - const s = series[si]; - - if (dir == 1) { - const { stroke, fill, clip } = s._paths; - const width = round3(s[WIDTH] * pxRatio); - const offset = (width % 2) / 2; - - setCtxStyle(s.stroke, width, s.dash, s.fill); - - ctx.globalAlpha = s.alpha; - - ctx.translate(offset, offset); - - ctx.save(); - - let lft = plotLft, - top = plotTop, - wid = plotWid, - hgt = plotHgt; - - let halfWid = width * pxRatio / 2; - - if (s.min == 0) - hgt += halfWid; - - if (s.max == 0) { - top -= halfWid; - hgt += halfWid; - } - - ctx.beginPath(); - ctx.rect(lft, top, wid, hgt); - ctx.clip(); - - if (clip != null) - ctx.clip(clip); - - if (s.band) { - ctx.fill(stroke); - width && ctx.stroke(stroke); - } - else { - width && ctx.stroke(stroke); - - if (s.fill != null) - ctx.fill(fill); - } - - ctx.restore(); - - ctx.translate(-offset, -offset); - - ctx.globalAlpha = 1; - } - - if (s.band) - dir *= -1; - } - - function buildClip(is, gaps) { - let s = series[is]; - let toSpan = new Set(s.spanGaps(self, gaps, is)); - gaps = gaps.filter(g => !toSpan.has(g)); - - let clip = null; - - // create clip path (invert gaps and non-gaps) - if (gaps.length > 0) { - clip = new Path2D(); - - let prevGapEnd = plotLft; - - for (let i = 0; i < gaps.length; i++) { - let g = gaps[i]; - - clip.rect(prevGapEnd, plotTop, g[0] - prevGapEnd, plotTop + plotHgt); - - prevGapEnd = g[1]; - } - - clip.rect(prevGapEnd, plotTop, plotLft + plotWid - prevGapEnd, plotTop + plotHgt); - } - - return clip; - } - - function buildPaths(self, is, _i0, _i1) { - const s = series[is]; - - const xdata = data[0]; - const ydata = data[is]; - const scaleX = scales[xScaleKey]; - const scaleY = scales[s.scale]; - - const _paths = dir == 1 ? {stroke: new Path2D(), fill: null, clip: null} : series[is-1]._paths; - const stroke = _paths.stroke; - const width = round3(s[WIDTH] * pxRatio); - - let minY = inf, - maxY = -inf, - outY, outX; - - // todo: don't build gaps on dir = -1 pass - let gaps = []; - - let accX = round(getXPos(xdata[dir == 1 ? _i0 : _i1], scaleX, plotWid, plotLft)); - - // the moves the shape edge outside the canvas so stroke doesnt bleed in - if (s.band && dir == 1 && _i0 == i0) { - if (width) - stroke.lineTo(-width, round(getYPos(ydata[_i0], scaleY, plotHgt, plotTop))); - - if (scaleX.min < xdata[0]) - gaps.push([plotLft, accX - 1]); - } - - for (let i = dir == 1 ? _i0 : _i1; i >= _i0 && i <= _i1; i += dir) { - let x = round(getXPos(xdata[i], scaleX, plotWid, plotLft)); - - if (x == accX) { - if (ydata[i] != null) { - outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); - minY = min(outY, minY); - maxY = max(outY, maxY); - } - } - else { - let addGap = false; - - if (minY != inf) { - stroke.lineTo(accX, minY); - stroke.lineTo(accX, maxY); - stroke.lineTo(accX, outY); - outX = accX; - } - else - addGap = true; - - if (ydata[i] != null) { - outY = round(getYPos(ydata[i], scaleY, plotHgt, plotTop)); - stroke.lineTo(x, outY); - minY = maxY = outY; - - // prior pixel can have data but still start a gap if ends with null - if (x - accX > 1 && ydata[i-1] == null) - addGap = true; - } - else { - minY = inf; - maxY = -inf; - } - - if (addGap) { - let prevGap = gaps[gaps.length - 1]; - - if (prevGap && prevGap[0] == outX) // TODO: gaps must be encoded at stroke widths? - prevGap[1] = x; - else - gaps.push([outX, x]); - } - - accX = x; - } - } - - if (s.band) { - let overShoot = width * 100, _iy, _x; - - // the moves the shape edge outside the canvas so stroke doesnt bleed in - if (dir == -1 && _i0 == i0) { - _x = plotLft - overShoot; - _iy = _i0; - } - - if (dir == 1 && _i1 == i1) { - _x = plotLft + plotWid + overShoot; - _iy = _i1; - - if (scaleX.max > xdata[dataLen - 1]) - gaps.push([accX, plotLft + plotWid]); - } - - stroke.lineTo(_x, round(getYPos(ydata[_iy], scaleY, plotHgt, plotTop))); - } - - if (dir == 1) { - _paths.clip = buildClip(is, gaps); - - if (s.fill != null) { - let fill = _paths.fill = new Path2D(stroke); - - let zeroY = round(getYPos(0, scaleY, plotHgt, plotTop)); - fill.lineTo(plotLft + plotWid, zeroY); - fill.lineTo(plotLft, zeroY); - } - } - - if (s.band) - dir *= -1; - - return _paths; - } - - function getIncrSpace(axis, min, max, fullDim) { - let incrSpace; - - if (fullDim <= 0) - incrSpace = [0, 0]; - else { - let minSpace = axis.space(self, min, max, fullDim); - let incrs = axis.incrs(self, min, max, fullDim, minSpace); - incrSpace = findIncr(max - min, incrs, fullDim, minSpace); - incrSpace.push(incrSpace[1]/minSpace); - } - - return incrSpace; - } - - function drawOrthoLines(offs, ori, side, pos0, len, width, stroke, dash) { - let offset = (width % 2) / 2; - - ctx.translate(offset, offset); - - setCtxStyle(stroke, width, dash); - - ctx.beginPath(); - - let x0, y0, x1, y1, pos1 = pos0 + (side == 0 || side == 3 ? -len : len); - - if (ori == 0) { - y0 = pos0; - y1 = pos1; - } - else { - x0 = pos0; - x1 = pos1; - } - - offs.forEach((off, i) => { - if (ori == 0) - x0 = x1 = off; - else - y0 = y1 = off; - - ctx.moveTo(x0, y0); - ctx.lineTo(x1, y1); - }); - - ctx.stroke(); - - ctx.translate(-offset, -offset); - } - - function drawAxesGrid() { - axes.forEach((axis, i) => { - if (!axis.show) - return; - - let scale = scales[axis.scale]; - - // this will happen if all series using a specific scale are toggled off - if (scale.min == inf) - return; - - let side = axis.side; - let ori = side % 2; - - let {min, max} = scale; - - let [incr, space, pctSpace] = getIncrSpace(axis, min, max, ori == 0 ? plotWidCss : plotHgtCss); - - // if we're using index positions, force first tick to match passed index - let forceMin = scale.distr == 2; - - let splits = axis.split(self, min, max, incr, pctSpace, forceMin); - - let getPos = ori == 0 ? getXPos : getYPos; - let plotDim = ori == 0 ? plotWid : plotHgt; - let plotOff = ori == 0 ? plotLft : plotTop; - - let canOffs = splits.map(val => round(getPos(val, scale, plotDim, plotOff))); - - let axisGap = round(axis.gap * pxRatio); - - let ticks = axis.ticks; - let tickSize = ticks.show ? round(ticks.size * pxRatio) : 0; - - // tick labels - // BOO this assumes a specific data/series - let values = axis.values( - self, - scale.distr == 2 ? splits.map(i => data0[i]) : splits, - space, - scale.distr == 2 ? data0[splits[1]] - data0[splits[0]] : incr, - ); - - // rotating of labels only supported on bottom x axis - let angle = side == 2 ? axis.rotate(self, values, space) * -PI/180 : 0; - - let basePos = round(axis._pos * pxRatio); - let shiftAmt = tickSize + axisGap; - let shiftDir = ori == 0 && side == 0 || ori == 1 && side == 3 ? -1 : 1; - let finalPos = basePos + shiftAmt * shiftDir; - let y = ori == 0 ? finalPos : 0; - let x = ori == 1 ? finalPos : 0; - - ctx.font = axis.font[0]; - ctx.fillStyle = axis.stroke || hexBlack; // rgba? - ctx.textAlign = angle > 0 ? LEFT : - angle < 0 ? RIGHT : - ori == 0 ? "center" : side == 3 ? RIGHT : LEFT; - ctx.textBaseline = angle || - ori == 1 ? "middle" : side == 2 ? TOP : BOTTOM; - - let lineHeight = axis.font[1] * lineMult; - - values.forEach((val, i) => { - if (ori == 0) - x = canOffs[i]; - else - y = canOffs[i]; - - (""+val).split(/\n/gm).forEach((text, j) => { - if (angle) { - ctx.save(); - ctx.translate(x, y + j * lineHeight); - ctx.rotate(angle); - ctx.fillText(text, 0, 0); - ctx.restore(); - } - else - ctx.fillText(text, x, y + j * lineHeight); - }); - }); - - // axis label - if (axis.label) { - ctx.save(); - - let baseLpos = round(axis._lpos * pxRatio); - - if (ori == 1) { - x = y = 0; - - ctx.translate( - baseLpos, - round(plotTop + plotHgt / 2), - ); - ctx.rotate((side == 3 ? -PI : PI) / 2); - - } - else { - x = round(plotLft + plotWid / 2); - y = baseLpos; - } - - ctx.font = axis.labelFont[0]; - // ctx.fillStyle = axis.labelStroke || hexBlack; // rgba? - ctx.textAlign = "center"; - ctx.textBaseline = side == 2 ? TOP : BOTTOM; - - ctx.fillText(axis.label, x, y); - - ctx.restore(); - } - - // ticks - if (ticks.show) { - drawOrthoLines( - canOffs, - ori, - side, - basePos, - tickSize, - round3(ticks[WIDTH] * pxRatio), - ticks.stroke, - ); - } - - // grid - let grid = axis.grid; - - if (grid.show) { - drawOrthoLines( - canOffs, - ori, - ori == 0 ? 2 : 1, - ori == 0 ? plotTop : plotLft, - ori == 0 ? plotHgt : plotWid, - round3(grid[WIDTH] * pxRatio), - grid.stroke, - grid.dash, - ); - } - }); - - fire("drawAxes"); - } - - function resetYSeries() { - // log("resetYSeries()", arguments); - - series.forEach((s, i) => { - if (i > 0) { - s.min = inf; - s.max = -inf; - s._paths = null; - } - }); - } - - let didPaint; - - function paint() { - if (inBatch) { - shouldPaint = true; - return; - } - - // log("paint()", arguments); - - ctx.clearRect(0, 0, can[WIDTH], can[HEIGHT]); - fire("drawClear"); - drawAxesGrid(); - drawSeries(); - didPaint = true; - fire("draw"); - } - - self.redraw = rebuildPaths => { - if (rebuildPaths !== false) - _setScale(xScaleKey, scales[xScaleKey].min, scales[xScaleKey].max); - else - paint(); - }; - - // redraw() => setScale('x', scales.x.min, scales.x.max); - - // explicit, never re-ranged (is this actually true? for x and y) - function setScale(key, opts) { - let sc = scales[key]; - - if (sc.from == null) { - if (key == xScaleKey) { - if (sc.distr == 2) { - opts.min = closestIdx(opts.min, data[0]); - opts.max = closestIdx(opts.max, data[0]); - } - - // prevent setting a temporal x scale too small since Date objects cannot advance ticks smaller than 1ms - if ( sc.time && axes[0].show && opts.max > opts.min) { - // since scales and axes are loosly coupled, we have to make some assumptions here :( - let incr = getIncrSpace(axes[0], opts.min, opts.max, plotWidCss)[0]; - - if (incr < 1e-3) - return; - } - } - - // log("setScale()", arguments); - - pendScales[key] = opts; - - didPaint = false; - setScales(); - !didPaint && paint(); - didPaint = false; - } - } - - self.setScale = setScale; - -// INTERACTION - - let vt; - let hz; - - // starting position - let mouseLeft0; - let mouseTop0; - - // current position - let mouseLeft1; - let mouseTop1; - - let dragging = false; - - const drag = cursor.drag; - - if ( cursor.show) { - let c = "cursor-"; - - if (cursor.x) { - mouseLeft1 = cursor.left; - vt = placeDiv(c + "x", over); - } - - if (cursor.y) { - mouseTop1 = cursor.top; - hz = placeDiv(c + "y", over); - } - } - - const select = self.select = assign({ - show: true, - left: 0, - width: 0, - top: 0, - height: 0, - }, opts.select); - - const selectDiv = select.show ? placeDiv("select", over) : null; - - function setSelect(opts, _fire) { - if (select.show) { - for (let prop in opts) - setStylePx(selectDiv, prop, select[prop] = opts[prop]); - - _fire !== false && fire("setSelect"); - } - } - - self.setSelect = setSelect; - - function toggleDOM(i, onOff) { - let s = series[i]; - let label = showLegend ? legendRows[i][0].parentNode : null; - - if (s.show) - label && remClass(label, "off"); - else { - label && addClass(label, "off"); - cursorPts.length > 1 && trans(cursorPts[i], 0, -10); - } - } - - function _setScale(key, min, max) { - setScale(key, {min, max}); - } - - function setSeries(i, opts, pub) { - // log("setSeries()", arguments); - - let s = series[i]; - - // batch(() => { - // will this cause redundant paint() if both show and focus are set? - if (opts.focus != null) - setFocus(i); - - if (opts.show != null) { - s.show = opts.show; - toggleDOM(i, opts.show); - - if (s.band) { - // not super robust, will break if two bands are adjacent - let ip = series[i+1] && series[i+1].band ? i+1 : i-1; - series[ip].show = s.show; - toggleDOM(ip, opts.show); - } - - _setScale(xScaleKey, scales[xScaleKey].min, scales[xScaleKey].max); // redraw - } - // }); - - // firing setSeries after setScale seems out of order, but provides access to the updated props - // could improve by predefining firing order and building a queue - fire("setSeries", i, opts); - - pub && sync.pub("setSeries", self, i, opts); - } - - self.setSeries = setSeries; - - function _alpha(i, value) { - series[i].alpha = value; - - if ( legendRows) - legendRows[i][0].parentNode.style.opacity = value; - } - - function _setAlpha(i, value) { - let s = series[i]; - - _alpha(i, value); - - if (s.band) { - // not super robust, will break if two bands are adjacent - let ip = series[i+1].band ? i+1 : i-1; - _alpha(ip, value); - } - } - - // y-distance - const distsToCursor = Array(series.length); - - let focused = null; - - function setFocus(i) { - if (i != focused) { - // log("setFocus()", arguments); - - series.forEach((s, i2) => { - _setAlpha(i2, i == null || i2 == 0 || i2 == i ? 1 : focus.alpha); - }); - - focused = i; - paint(); - } - } - - if (showLegend && cursorFocus) { - on(mouseleave, legendEl, e => { - if (cursor.locked) - return; - setSeries(null, {focus: false}, syncOpts.setSeries); - updateCursor(); - }); - } - - function scaleValueAtPos(pos, scale) { - let dim = scale == xScaleKey ? plotWidCss : plotHgtCss; - let pct = clamp(pos / dim, 0, 1); - - let sc = scales[scale]; - let d = sc.max - sc.min; - return sc.min + pct * d; - } - - function closestIdxFromXpos(pos) { - let v = scaleValueAtPos(pos, xScaleKey); - return closestIdx(v, data[0], i0, i1); - } - - self.valToIdx = val => closestIdx(val, data[0]); - self.posToIdx = closestIdxFromXpos; - self.posToVal = (pos, scale) => scaleValueAtPos(scale == xScaleKey ? pos : plotHgtCss - pos, scale); - self.valToPos = (val, scale, can) => ( - scale == xScaleKey ? - getXPos(val, scales[scale], - can ? plotWid : plotWidCss, - can ? plotLft : 0, - ) : - getYPos(val, scales[scale], - can ? plotHgt : plotHgtCss, - can ? plotTop : 0, - ) - ); - - let inBatch = false; - let shouldPaint = false; - let shouldSetScales = false; - let shouldUpdateCursor = false; - - // defers calling expensive functions - function batch(fn) { - inBatch = true; - fn(self); - inBatch = false; - shouldSetScales && setScales(); - shouldUpdateCursor && updateCursor(); - shouldPaint && !didPaint && paint(); - shouldSetScales = shouldUpdateCursor = shouldPaint = didPaint = inBatch; - } - - self.batch = batch; - - (self.setCursor = opts => { - mouseLeft1 = opts.left; - mouseTop1 = opts.top; - // assign(cursor, opts); - updateCursor(); - }); - - let cursorRaf = 0; - - function updateCursor(ts) { - if (inBatch) { - shouldUpdateCursor = true; - return; - } - - // ts == null && log("updateCursor()", arguments); - - cursorRaf = 0; - - if (cursor.show) { - cursor.x && trans(vt,round(mouseLeft1),0); - cursor.y && trans(hz,0,round(mouseTop1)); - } - - let idx; - - // if cursor hidden, hide points & clear legend vals - if (mouseLeft1 < 0 || dataLen == 0) { - idx = null; - - for (let i = 0; i < series.length; i++) { - if (i > 0) { - distsToCursor[i] = inf; - cursorPts.length > 1 && trans(cursorPts[i], -10, -10); - } - - if (showLegend) { - if (i == 0 && multiValLegend) - continue; - - for (let j = 0; j < legendRows[i].length; j++) - legendRows[i][j][firstChild].nodeValue = '--'; - } - } - - if (cursorFocus) - setSeries(null, {focus: true}, syncOpts.setSeries); - } - else { - // let pctY = 1 - (y / rect[HEIGHT]); - - idx = closestIdxFromXpos(mouseLeft1); - - let scX = scales[xScaleKey]; - - let xPos = round3(getXPos(data[0][idx], scX, plotWidCss, 0)); - - for (let i = 0; i < series.length; i++) { - let s = series[i]; - - if (i > 0 && s.show) { - let valAtIdx = data[i][idx]; - - let yPos = valAtIdx == null ? -10 : round3(getYPos(valAtIdx, scales[s.scale], plotHgtCss, 0)); - - distsToCursor[i] = yPos > 0 ? abs(yPos - mouseTop1) : inf; - - cursorPts.length > 1 && trans(cursorPts[i], xPos, yPos); - } - else - distsToCursor[i] = inf; - - if (showLegend) { - if (i == 0 && multiValLegend) - continue; - - let src = i == 0 && xScaleDistr == 2 ? data0 : data[i]; - - let vals = multiValLegend ? s.values(self, i, idx) : {_: s.value(self, src[idx], i, idx)}; - - let j = 0; - - for (let k in vals) - legendRows[i][j++][firstChild].nodeValue = vals[k]; - } - } - } - - // nit: cursor.drag.setSelect is assumed always true - if (mouseLeft1 >= 0 && select.show && dragging) { - // setSelect should not be triggered on move events - if (drag.x) { - let minX = min(mouseLeft0, mouseLeft1); - let maxX = max(mouseLeft0, mouseLeft1); - setStylePx(selectDiv, LEFT, select[LEFT] = minX); - setStylePx(selectDiv, WIDTH, select[WIDTH] = maxX - minX); - } - - if (drag.y) { - let minY = min(mouseTop0, mouseTop1); - let maxY = max(mouseTop0, mouseTop1); - setStylePx(selectDiv, TOP, select[TOP] = minY); - setStylePx(selectDiv, HEIGHT, select[HEIGHT] = maxY - minY); - } - } - - // if ts is present, means we're implicitly syncing own cursor as a result of debounced rAF - if (ts != null) { - // this is not technically a "mousemove" event, since it's debounced, rename to setCursor? - // since this is internal, we can tweak it later - sync.pub(mousemove, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, idx); - - if (cursorFocus) { - let minDist = min.apply(null, distsToCursor); - - let fi = null; - - if (minDist <= focus.prox) { - distsToCursor.some((dist, i) => { - if (dist == minDist) - return fi = i; - }); - } - - setSeries(fi, {focus: true}, syncOpts.setSeries); - } - } - - cursor.idx = idx; - cursor.left = mouseLeft1; - cursor.top = mouseTop1; - - ready && fire("setCursor"); - } - - let rect = null; - - function syncRect() { - rect = over.getBoundingClientRect(); - } - - function mouseMove(e, src, _x, _y, _w, _h, _i) { - if (cursor.locked) - return; - - cacheMouse(e, src, _x, _y, _w, _h, _i, false, e != null); - - if (e != null) { - if (cursorRaf == 0) - cursorRaf = rAF(updateCursor); - } - else - updateCursor(); - } - - function cacheMouse(e, src, _x, _y, _w, _h, _i, initial, snap) { - if (e != null) { - _x = e.clientX - rect.left; - _y = e.clientY - rect.top; - } - else { - _x = plotWidCss * (_x/_w); - _y = plotHgtCss * (_y/_h); - } - - if (snap) { - if (_x <= 1 || _x >= plotWidCss - 1) - _x = incrRound(_x, plotWidCss); - - if (_y <= 1 || _y >= plotHgtCss - 1) - _y = incrRound(_y, plotHgtCss); - } - - if (initial) { - mouseLeft0 = _x; - mouseTop0 = _y; - } - else { - mouseLeft1 = _x; - mouseTop1 = _y; - } - } - - function hideSelect() { - setSelect({ - width: !drag.x ? plotWidCss : 0, - height: !drag.y ? plotHgtCss : 0, - }, false); - } - - function mouseDown(e, src, _x, _y, _w, _h, _i) { - if (e == null || filtMouse(e)) { - dragging = true; - - cacheMouse(e, src, _x, _y, _w, _h, _i, true, true); - - if (select.show && (drag.x || drag.y)) - hideSelect(); - - if (e != null) { - on(mouseup, doc, mouseUp); - sync.pub(mousedown, self, mouseLeft0, mouseTop0, plotWidCss, plotHgtCss, null); - } - } - } - - function mouseUp(e, src, _x, _y, _w, _h, _i) { - if ((e == null || filtMouse(e))) { - dragging = false; - - cacheMouse(e, src, _x, _y, _w, _h, _i, false, true); - - if (mouseLeft1 != mouseLeft0 || mouseTop1 != mouseTop0) { - setSelect(select); - - if (drag.setScale) { - batch(() => { - if (drag.x) { - _setScale(xScaleKey, - scaleValueAtPos(select[LEFT], xScaleKey), - scaleValueAtPos(select[LEFT] + select[WIDTH], xScaleKey), - ); - } - - if (drag.y) { - for (let k in scales) { - let sc = scales[k]; - - if (k != xScaleKey && sc.from == null) { - _setScale(k, - scaleValueAtPos(plotHgtCss - select[TOP] - select[HEIGHT], k), - scaleValueAtPos(plotHgtCss - select[TOP], k), - ); - } - } - } - }); - - hideSelect(); - } - } - else if (cursor.lock) { - cursor.locked = !cursor.locked; - - if (!cursor.locked) - updateCursor(); - } - - if (e != null) { - off(mouseup, doc, mouseUp); - sync.pub(mouseup, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); - } - } - } - - function mouseLeave(e, src, _x, _y, _w, _h, _i) { - if (!cursor.locked && !dragging) { - mouseLeft1 = -10; - mouseTop1 = -10; - // passing a non-null timestamp to force sync/mousemove event - updateCursor(1); - } - } - - function dblClick(e, src, _x, _y, _w, _h, _i) { - autoScaleX(); - - if (e != null) - sync.pub(dblclick, self, mouseLeft1, mouseTop1, plotWidCss, plotHgtCss, null); - } - - // internal pub/sub - const events = {}; - - events[mousedown] = mouseDown; - events[mousemove] = mouseMove; - events[mouseup] = mouseUp; - events[dblclick] = dblClick; - events["setSeries"] = (e, src, idx, opts) => { - setSeries(idx, opts); - }; - - let deb; - - if ( cursor.show) { - on(mousedown, over, mouseDown); - on(mousemove, over, mouseMove); - on(mouseenter, over, syncRect); - on(mouseleave, over, mouseLeave); - drag.setScale && on(dblclick, over, dblClick); - - deb = debounce(syncRect, 100); - - on(resize, win, deb); - on(scroll, win, deb); - - self.syncRect = syncRect; - } - - // external on/off - const hooks = self.hooks = opts.hooks || {}; - - function fire(evName, a1, a2) { - if (evName in hooks) { - hooks[evName].forEach(fn => { - fn.call(null, self, a1, a2); - }); - } - } - - (opts.plugins || []).forEach(p => { - for (let evName in p.hooks) - hooks[evName] = (hooks[evName] || []).concat(p.hooks[evName]); - }); - - const syncOpts = assign({ - key: null, - setSeries: false, - }, cursor.sync); - - const syncKey = syncOpts.key; - - const sync = (syncKey != null ? (syncs[syncKey] = syncs[syncKey] || _sync()) : _sync()); - - sync.sub(self); - - function pub(type, src, x, y, w, h, i) { - events[type](null, src, x, y, w, h, i); - } - - (self.pub = pub); - - function destroy() { - sync.unsub(self); - off(resize, win, deb); - off(scroll, win, deb); - root.remove(); - fire("destroy"); - } - - self.destroy = destroy; - - function _init() { - _setSize(opts[WIDTH], opts[HEIGHT]); - - fire("init", opts, data); - - setData(data || opts.data, false); - - if (pendScales[xScaleKey]) - setScale(xScaleKey, pendScales[xScaleKey]); - else - autoScaleX(); - - setSelect(select, false); - - ready = true; - - fire("ready"); - } - - if (then) { - if (then instanceof HTMLElement) { - then.appendChild(root); - _init(); - } - else - then(self, _init); - } - else - _init(); - - return self; -} - -uPlot.assign = assign; -uPlot.rangeNum = rangeNum; - -{ - uPlot.fmtDate = fmtDate; - uPlot.tzDate = tzDate; -} - -export default uPlot; diff --git a/assets/lib/uPlot.min.css b/assets/lib/uPlot.min.css deleted file mode 100644 index 82b70b5..0000000 --- a/assets/lib/uPlot.min.css +++ /dev/null @@ -1 +0,0 @@ -.uplot, .uplot *, .uplot *::before, .uplot *::after {box-sizing: border-box;}.uplot {font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";line-height: 1.5;width: max-content;}.uplot .title {text-align: center;font-size: 18px;font-weight: bold;}.uplot .wrap {position: relative;user-select: none;}.uplot .over, .uplot .under {position: absolute;overflow: hidden;}.uplot canvas {display: block;position: relative;width: 100%;height: 100%;}.uplot .legend {font-size: 14px;margin: auto;text-align: center;}.uplot .legend.inline {display: block;}.uplot .legend.inline * {display: inline-block;}.uplot .legend.inline tr {margin-right: 16px;}.uplot .legend th {font-weight: 600;}.uplot .legend th > * {vertical-align: middle;display: inline-block;}.uplot .legend .ident {width: 1em;height: 1em;margin-right: 4px;border: 2px solid transparent;}.uplot .legend.inline th::after {content: ":";vertical-align: middle;}.uplot .legend .series > * {padding: 4px;}.uplot .legend .series th {cursor: pointer;}.uplot .legend .off > * {opacity: 0.3;}.uplot .select {background: rgba(0,0,0,0.07);position: absolute;pointer-events: none;}.uplot .select.off {display: none;}.uplot .cursor-x, .uplot .cursor-y {position: absolute;left: 0;top: 0;pointer-events: none;will-change: transform;z-index: 100;}.uplot .cursor-x {height: 100%;border-right: 1px dashed #607D8B;}.uplot .cursor-y {width: 100%;border-bottom: 1px dashed #607D8B;}.uplot .cursor-pt {position: absolute;top: 0;left: 0;border-radius: 50%;filter: brightness(85%);pointer-events: none;will-change: transform;z-index: 100;} \ No newline at end of file diff --git a/package-lock.json b/package-lock.json index b5c4568..93a463a 100644 --- a/package-lock.json +++ b/package-lock.json @@ -8519,6 +8519,11 @@ "integrity": "sha512-aZwGpamFO61g3OlfT7OQCHqhGnW43ieH9WZeP7QxN/G/jS4jfqUkZxoryvJgVPEcrl5NL/ggHsSmLMHuH64Lhg==", "dev": true }, + "uplot": { + "version": "1.0.8", + "resolved": "https://registry.npmjs.org/uplot/-/uplot-1.0.8.tgz", + "integrity": "sha512-oS0YVdq6iEU4B+BXSX1Ln3Dd8iVHk9vKL9elWlIEa7cYzlhqDmnnJQsXSaLjYWTQbnDLRJuuaO3oyGF2q7loiw==" + }, "uri-js": { "version": "4.2.2", "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz", diff --git a/package.json b/package.json index 69a1bb4..6a0dabb 100644 --- a/package.json +++ b/package.json @@ -10,6 +10,7 @@ "request": "2.88.2", "serve-static": "^1.14.1", "sqlite3": "4.1.1", + "uplot": "^1.0.8", "winston": "^2.0.0", "ws": "^7.2.5" },