# HG changeset patch # User Paul Fisher # Date 1579471511 18000 # Node ID f817fa785c93e3815507537ebdd34ff4d168e934 # Parent 99b0759386b18b0350cfb4b07a9fff2b764542bc Make graph only consider visible points when setting range. diff -r 99b0759386b1 -r f817fa785c93 setup.py --- a/setup.py Sun Nov 10 23:48:38 2019 -0500 +++ b/setup.py Sun Jan 19 17:05:11 2020 -0500 @@ -2,7 +2,7 @@ setuptools.setup( name='weather-server', - version='0.1.0', + version='0.1.1', packages=setuptools.find_packages(), python_requires='>=3.7', install_requires=[ diff -r 99b0759386b1 -r f817fa785c93 weather_server/static/graph.js --- a/weather_server/static/graph.js Sun Nov 10 23:48:38 2019 -0500 +++ b/weather_server/static/graph.js Sun Jan 19 17:05:11 2020 -0500 @@ -1,26 +1,24 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { + function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } - function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); } + function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; define("math", ["require", "exports"], function (require, exports) { "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); - /** Converts Celsius to Fahrenheit. */ function cToF(tempC) { return tempC * 9 / 5 + 32; } exports.cToF = cToF; const MAGNUS_B = 17.62; const MAGNUS_C = 243.12; - /** The gamma function to calculate dew point. */ function gammaFn(tempC, rhPct) { return Math.log(rhPct / 100) + MAGNUS_B * tempC / (MAGNUS_C + tempC); } - /** Calculates the dew point. */ function dewPointC(tempC, rhPct) { const gamma = gammaFn(tempC, rhPct); return MAGNUS_C * gamma / (MAGNUS_B - gamma); @@ -30,15 +28,8 @@ define("graph", ["require", "exports", "math"], function (require, exports, math_1) { "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); - /** The amount of time we will draw on the graph. */ const HISTORY_SECONDS = 60 * 60 * 4; - /** The amount of buffer room we will request before HISTORY_SECONDS. */ const BUFFER_SECONDS = 300; - /** - * Sets up everything. - * @param tempElement The element where temperature data is. - * @param dewPointElement The element where the dew point is. - */ function setUp(root, tempElement, dewPointElement) { return __awaiter(this, void 0, void 0, function* () { const nowTS = new Date().getTime() / 1000; @@ -62,12 +53,6 @@ }); } exports.setUp = setUp; - /** - * Sets up charting for this element. - * @param element The element to put a graph in. - * @param timeRange The `[start, end]` of the time range. - * @param data The data to chart. - */ function setUpElement(element, timeRange, data) { if (data.length === 0) return; @@ -75,17 +60,10 @@ chart.resize(); addEventListener('resize', () => chart.resize()); } - /** The number of degrees that the graph shows vertically. */ const Y_DEGREE_RANGE = 10; const LINE_WIDTH_PX = 2; const FONT_SIZE = '40px'; class Chart { - /** - * Creates a new chart. - * @param element The parent element to create ``-based chart in. - * @param timeRange `[start, end]` of the range to chart as Unix timestamps. - * @param data The data to chart. - */ constructor(element, timeRange, data) { this.element = element; this.timeRange = timeRange; @@ -113,7 +91,8 @@ ctx.lineJoin = 'round'; ctx.lineWidth = LINE_WIDTH_PX; ctx.font = `bold ${FONT_SIZE} ${family}`; - const yRange = calculateYRange(this.data.map(d => d[1])); + const onScreenData = this.data.filter(([time, _]) => this.timeRange[0] <= time); + const yRange = calculateYRange(onScreenData.map(d => d[1])); const [fullW, fullH] = this.size(); const [xPad, yMargin] = this.measureMargin(ctx); const graphSize = [fullW - xPad, fullH]; @@ -137,9 +116,9 @@ } measureMargin(ctx) { const bbox = ctx.measureText(`−99 ${this.unit}`); - const margin = 5 * LINE_WIDTH_PX + // margin to text - bbox.width + // max (?) width of text - 16; // Pixel margin to wall. + const margin = 5 * LINE_WIDTH_PX + + bbox.width + + 16; return [margin, -31.5 / 2]; } size() { @@ -150,13 +129,7 @@ function niceNumber(n) { return Math.round(n).toLocaleString('en-us').replace('-', '−'); } - /** The closest that the last point will be allowed to get to the edge. */ const EDGE_FRACTION = 0.125; - /** - * Determines what the Y range of the chart should be. - * @param ys The Y values of the chart. - * @return The lowest and highest values of the range. - */ function calculateYRange(ys) { const yMax = Math.max(...ys); const yMin = Math.min(...ys); @@ -167,15 +140,6 @@ const rangeLo = lastY - yProportion * Y_DEGREE_RANGE; return [rangeLo, rangeLo + Y_DEGREE_RANGE]; } - /** - * Projects a Cartesian coordinate into Canvas space. - * - * @param coord The `[x, y]` coordinate to project. - * @param size The `[width, height]` of the context. - * @param xRange The range of X values in the context. - * @param yRange The range of Y values in the context. - * @return The `[x, y]` coordinate in Canvas space. - */ function project(coord, size, xRange, yRange) { const [x, y] = coord; const [xMin, xMax] = xRange; diff -r 99b0759386b1 -r f817fa785c93 weather_server/static/graph.js.map --- a/weather_server/static/graph.js.map Sun Nov 10 23:48:38 2019 -0500 +++ b/weather_server/static/graph.js.map Sun Jan 19 17:05:11 2020 -0500 @@ -1,1 +1,1 @@ 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Converts Celsius to Fahrenheit. */\nexport function cToF(tempC: number): number {\n return tempC * 9 / 5 + 32;\n}\n\nconst MAGNUS_B = 17.62;\nconst MAGNUS_C = 243.12;\n\n/** The gamma function to calculate dew point. */\nfunction gammaFn(tempC: number, rhPct: number): number {\n return Math.log(rhPct / 100) + MAGNUS_B * tempC / (MAGNUS_C + tempC);\n}\n\n/** Calculates the dew point. */\nexport function dewPointC(tempC: any, rhPct: any): number {\n const gamma = gammaFn(tempC, rhPct);\n return MAGNUS_C * gamma / (MAGNUS_B - gamma);\n}\n","import { WeatherResponse } from './apis';\nimport { cToF, dewPointC } from './math';\n\n/** The amount of time we will draw on the graph. */\nconst HISTORY_SECONDS = 60 * 60 * 4;\n/** The amount of buffer room we will request before HISTORY_SECONDS. */\nconst BUFFER_SECONDS = 300;\n\n/**\n * Sets up everything.\n * @param tempElement The element where temperature data is.\n * @param dewPointElement The element where the dew point is.\n */\nexport async 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Y_DEGREE_RANGE;\n return [rangeLo, rangeLo + Y_DEGREE_RANGE];\n}\n\n/**\n * Projects a Cartesian coordinate into Canvas space.\n *\n * @param coord The `[x, y]` coordinate to project.\n * @param size The `[width, height]` of the context.\n * @param xRange The range of X values in the context.\n * @param yRange The range of Y values in the context.\n * @return The `[x, y]` coordinate in Canvas space.\n */\nfunction project(\n coord: Point,\n size: Point,\n xRange: [number, number],\n yRange: [number, number]): Point {\n const [x, y] = coord;\n const [xMin, xMax] = xRange;\n const xSpan = xMax - xMin;\n const [yMin, yMax] = yRange;\n const ySpan = yMax - yMin;\n const [xSize, ySize] = size;\n return [\n (x - xMin) / xSpan * xSize,\n (yMax - y) / ySpan * ySize,\n ]\n}\n"]} \ No newline at end of file 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data: Point[]) {\n this.canvas = document.createElement('canvas');\n this.element.insertBefore(this.canvas, element.firstChild);\n const unit = element.getElementsByClassName('unit')[0];\n this.unit = unit && unit.textContent || '';\n }\n\n resize() {\n const dpr = self.devicePixelRatio || 1;\n const [w, h] = this.size();\n const pxSize: Point = [w * dpr, h * dpr];\n this.canvas.width = pxSize[0];\n this.canvas.height = pxSize[1];\n const ctx = this.canvas.getContext('2d')!;\n ctx.clearRect(0, 0, pxSize[0], pxSize[1]);\n ctx.scale(dpr, dpr);\n this.redraw(ctx);\n }\n\n private redraw(ctx: CanvasRenderingContext2D) {\n const stroke = getComputedStyle(this.element).color!;\n const family = getComputedStyle(this.element).fontFamily!;\n ctx.strokeStyle = stroke;\n ctx.lineJoin = 'round';\n ctx.lineWidth = LINE_WIDTH_PX;\n ctx.font = `bold ${FONT_SIZE} ${family}`;\n\n const onScreenData = this.data.filter(\n ([time, _]) => this.timeRange[0] <= time);\n\n const yRange = calculateYRange(onScreenData.map(d => d[1]));\n\n const [fullW, fullH] = this.size();\n const [xPad, yMargin] = this.measureMargin(ctx);\n const graphSize: Point = [fullW - xPad, fullH];\n\n ctx.beginPath();\n for (const pt of this.data) {\n const projected = project(pt, graphSize, this.timeRange, yRange);\n ctx.lineTo(...projected);\n }\n ctx.stroke();\n ctx.beginPath();\n const lastPt = this.data[this.data.length - 1];\n const center = project(lastPt, graphSize, this.timeRange, yRange);\n ctx.ellipse(\n center[0],\n center[1],\n 1.5 * LINE_WIDTH_PX,\n 1.5 * LINE_WIDTH_PX,\n 0,\n 0,\n 2 * Math.PI);\n ctx.fillStyle = getComputedStyle(this.element).backgroundColor!;\n ctx.fill();\n ctx.stroke();\n\n ctx.fillStyle = stroke;\n ctx.textAlign = 'left';\n ctx.textBaseline = 'top';\n ctx.fillText(\n `${niceNumber(lastPt[1])} ${this.unit}`,\n center[0] + 5 * LINE_WIDTH_PX,\n center[1] + yMargin);\n }\n\n private measureMargin(ctx: CanvasRenderingContext2D): [number, number] {\n const bbox = ctx.measureText(`−99 ${this.unit}`);\n const margin =\n 5 * LINE_WIDTH_PX + // margin to text\n bbox.width + // max (?) width of text\n 16; // Pixel margin to wall.\n return [margin, -31.5 / 2];\n }\n\n private size(): Point {\n const cssSize = this.element.getBoundingClientRect();\n return [cssSize.width, cssSize.height];\n }\n}\n\nfunction niceNumber(n: number) {\n return Math.round(n).toLocaleString('en-us').replace('-', '−');\n}\n\n/** The closest that the last point will be allowed to get to the edge. */\nconst EDGE_FRACTION = 0.125;\n\n/**\n * Determines what the Y range of the chart should be.\n * @param ys The Y values of the chart.\n * @return The lowest and highest values of the range.\n */\nfunction calculateYRange(ys: number[]): [number, number] {\n const yMax = Math.max(...ys);\n const yMin = Math.min(...ys);\n const yMid = (yMin + yMax) / 2;\n const lastY = ys[ys.length - 1];\n const yLo = yMid - Y_DEGREE_RANGE / 2;\n const yProportion = Math.max(\n Math.min((lastY - yLo) / Y_DEGREE_RANGE, 1 - EDGE_FRACTION),\n EDGE_FRACTION);\n const rangeLo = lastY - yProportion * Y_DEGREE_RANGE;\n return [rangeLo, rangeLo + Y_DEGREE_RANGE];\n}\n\n/**\n * Projects a Cartesian coordinate into Canvas space.\n *\n * @param coord The `[x, y]` coordinate to project.\n * @param size The `[width, height]` of the context.\n * @param xRange The range of X values in the context.\n * @param yRange The range of Y values in the context.\n * @return The `[x, y]` coordinate in Canvas space.\n */\nfunction project(\n coord: Point,\n size: Point,\n xRange: [number, number],\n yRange: [number, number]): Point {\n const [x, y] = coord;\n const [xMin, xMax] = xRange;\n const xSpan = xMax - xMin;\n const [yMin, yMax] = yRange;\n const ySpan = yMax - yMin;\n const [xSize, ySize] = size;\n return [\n (x - xMin) / xSpan * xSize,\n (yMax - y) / ySpan * ySize,\n ]\n}\n"]} \ No newline at end of file diff -r 99b0759386b1 -r f817fa785c93 weather_server/typescript/app/graph.ts --- a/weather_server/typescript/app/graph.ts Sun Nov 10 23:48:38 2019 -0500 +++ b/weather_server/typescript/app/graph.ts Sun Jan 19 17:05:11 2020 -0500 @@ -98,7 +98,10 @@ ctx.lineWidth = LINE_WIDTH_PX; ctx.font = `bold ${FONT_SIZE} ${family}`; - const yRange = calculateYRange(this.data.map(d => d[1])); + const onScreenData = this.data.filter( + ([time, _]) => this.timeRange[0] <= time); + + const yRange = calculateYRange(onScreenData.map(d => d[1])); const [fullW, fullH] = this.size(); const [xPad, yMargin] = this.measureMargin(ctx); diff -r 99b0759386b1 -r f817fa785c93 weather_server/typescript/app/tsconfig.json --- a/weather_server/typescript/app/tsconfig.json Sun Nov 10 23:48:38 2019 -0500 +++ b/weather_server/typescript/app/tsconfig.json Sun Jan 19 17:05:11 2020 -0500 @@ -16,7 +16,7 @@ // "outDir": "./", /* Redirect output structure to the directory. */ // "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */ // "composite": true, /* Enable project compilation */ - // "removeComments": true, /* Do not emit comments to output. */ + "removeComments": true, /* Do not emit comments to output. */ // "noEmit": true, /* Do not emit outputs. */ // "importHelpers": true, /* Import emit helpers from 'tslib'. */ // "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */