d3plot more or less works now
This commit is contained in:
Pau Figueras
pare
a25ba87f8b
commit
458cc6bb37
S'han modificat 1 arxius amb 16 adicions i 148 eliminacions
|
|
@ -1,5 +1,6 @@
|
|||
<script lang="ts">
|
||||
import * as d3 from 'd3';
|
||||
import { onMount } from 'svelte';
|
||||
|
||||
export let data: {date: string, avgTemp: number}[] = [
|
||||
{date: "2023-01-01", avgTemp: 22},
|
||||
|
|
@ -26,156 +27,23 @@ export let data: {date: string, avgTemp: number}[] = [
|
|||
{date: "2023-01-22", avgTemp: 0},
|
||||
{date: "2023-01-23", avgTemp: -2},
|
||||
];
|
||||
let vis;
|
||||
|
||||
let chart = LineChart(data, { x: d.date, y: d.avgTemp, yLabel: 'Daily average temperature', width, height: 500, color: 'steelblue' })
|
||||
let vis: Element;
|
||||
|
||||
// Copyright 2021 Observable, Inc.
|
||||
// Released under the ISC license.
|
||||
// https://observablehq.com/@d3/line-with-tooltip
|
||||
function LineChart(data, {
|
||||
x = ([x]) => x, // given d in data, returns the (temporal) x-value
|
||||
y = ([, y]) => y, // given d in data, returns the (quantitative) y-value
|
||||
title, // given d in data, returns the title text
|
||||
defined, // for gaps in data
|
||||
curve = d3.curveLinear, // method of interpolation between points
|
||||
marginTop = 20, // top margin, in pixels
|
||||
marginRight = 30, // right margin, in pixels
|
||||
marginBottom = 30, // bottom margin, in pixels
|
||||
marginLeft = 40, // left margin, in pixels
|
||||
width = 640, // outer width, in pixels
|
||||
height = 400, // outer height, in pixels
|
||||
xType = d3.scaleUtc, // type of x-scale
|
||||
xDomain, // [xmin, xmax]
|
||||
xRange = [marginLeft, width - marginRight], // [left, right]
|
||||
yType = d3.scaleLinear, // type of y-scale
|
||||
yDomain, // [ymin, ymax]
|
||||
yRange = [height - marginBottom, marginTop], // [bottom, top]
|
||||
color = "currentColor", // stroke color of line
|
||||
strokeWidth = 1.5, // stroke width of line, in pixels
|
||||
strokeLinejoin = "round", // stroke line join of line
|
||||
strokeLinecap = "round", // stroke line cap of line
|
||||
yFormat, // a format specifier string for the y-axis
|
||||
yLabel, // a label for the y-axis
|
||||
} = {}) {
|
||||
// Compute values.
|
||||
const X = d3.map(data, x);
|
||||
const Y = d3.map(data, y);
|
||||
const O = d3.map(data, d => d);
|
||||
const I = d3.map(data, (_, i) => i);
|
||||
|
||||
// Compute which data points are considered defined.
|
||||
if (defined === undefined) defined = (d, i) => !isNaN(X[i]) && !isNaN(Y[i]);
|
||||
const D = d3.map(data, defined);
|
||||
|
||||
// Compute default domains.
|
||||
if (xDomain === undefined) xDomain = d3.extent(X);
|
||||
if (yDomain === undefined) yDomain = [0, d3.max(Y)];
|
||||
|
||||
// Construct scales and axes.
|
||||
const xScale = xType(xDomain, xRange);
|
||||
const yScale = yType(yDomain, yRange);
|
||||
const xAxis = d3.axisBottom(xScale).ticks(width / 80).tickSizeOuter(0);
|
||||
const yAxis = d3.axisLeft(yScale).ticks(height / 40, yFormat);
|
||||
|
||||
// Compute titles.
|
||||
if (title === undefined) {
|
||||
const formatDate = xScale.tickFormat(null, "%b %-d, %Y");
|
||||
const formatValue = yScale.tickFormat(100, yFormat);
|
||||
title = i => `${formatDate(X[i])}\n${formatValue(Y[i])}`;
|
||||
} else {
|
||||
const O = d3.map(data, d => d);
|
||||
const T = title;
|
||||
title = i => T(O[i], i, data);
|
||||
}
|
||||
|
||||
// Construct a line generator.
|
||||
const line = d3.line()
|
||||
.defined(i => D[i])
|
||||
.curve(curve)
|
||||
.x(i => xScale(X[i]))
|
||||
.y(i => yScale(Y[i]));
|
||||
|
||||
const svg = d3.create("svg")
|
||||
.attr("width", width)
|
||||
.attr("height", height)
|
||||
.attr("viewBox", [0, 0, width, height])
|
||||
.attr("style", "max-width: 100%; height: auto; height: intrinsic;")
|
||||
.attr("font-family", "sans-serif")
|
||||
.attr("font-size", 10)
|
||||
.style("-webkit-tap-highlight-color", "transparent")
|
||||
.style("overflow", "visible")
|
||||
.on("pointerenter pointermove", pointermoved)
|
||||
.on("pointerleave", pointerleft)
|
||||
.on("touchstart", event => event.preventDefault());
|
||||
|
||||
svg.append("g")
|
||||
.attr("transform", `translate(0,${height - marginBottom})`)
|
||||
.call(xAxis);
|
||||
|
||||
svg.append("g")
|
||||
.attr("transform", `translate(${marginLeft},0)`)
|
||||
.call(yAxis)
|
||||
.call(g => g.select(".domain").remove())
|
||||
.call(g => g.selectAll(".tick line").clone()
|
||||
.attr("x2", width - marginLeft - marginRight)
|
||||
.attr("stroke-opacity", 0.1))
|
||||
.call(g => g.append("text")
|
||||
.attr("x", -marginLeft)
|
||||
.attr("y", 10)
|
||||
.attr("fill", "currentColor")
|
||||
.attr("text-anchor", "start")
|
||||
.text(yLabel));
|
||||
|
||||
svg.append("path")
|
||||
.attr("fill", "none")
|
||||
.attr("stroke", color)
|
||||
.attr("stroke-width", strokeWidth)
|
||||
.attr("stroke-linejoin", strokeLinejoin)
|
||||
.attr("stroke-linecap", strokeLinecap)
|
||||
.attr("d", line(I));
|
||||
|
||||
const tooltip = svg.append("g")
|
||||
.style("pointer-events", "none");
|
||||
|
||||
function pointermoved(event) {
|
||||
const i = d3.bisectCenter(X, xScale.invert(d3.pointer(event)[0]));
|
||||
tooltip.style("display", null);
|
||||
tooltip.attr("transform", `translate(${xScale(X[i])},${yScale(Y[i])})`);
|
||||
|
||||
const path = tooltip.selectAll("path")
|
||||
.data([,])
|
||||
.join("path")
|
||||
.attr("fill", "white")
|
||||
.attr("stroke", "black");
|
||||
|
||||
const text = tooltip.selectAll("text")
|
||||
.data([,])
|
||||
.join("text")
|
||||
.call(text => text
|
||||
.selectAll("tspan")
|
||||
.data(`${title(i)}`.split(/\n/))
|
||||
.join("tspan")
|
||||
.attr("x", 0)
|
||||
.attr("y", (_, i) => `${i * 1.1}em`)
|
||||
.attr("font-weight", (_, i) => i ? null : "bold")
|
||||
.text(d => d));
|
||||
|
||||
const {x, y, width: w, height: h} = text.node().getBBox();
|
||||
text.attr("transform", `translate(${-w / 2},${15 - y})`);
|
||||
path.attr("d", `M${-w / 2 - 10},5H-5l5,-5l5,5H${w / 2 + 10}v${h + 20}h-${w + 20}z`);
|
||||
svg.property("value", O[i]).dispatch("input", {bubbles: true});
|
||||
}
|
||||
|
||||
function pointerleft() {
|
||||
tooltip.style("display", "none");
|
||||
svg.node().value = null;
|
||||
svg.dispatch("input", {bubbles: true});
|
||||
}
|
||||
|
||||
return Object.assign(svg.node(), {value: null});
|
||||
}
|
||||
onMount(() => {
|
||||
const xScale = d3.scaleBand().rangeRound([0, 500]).padding(0.1);
|
||||
const yScale = d3.scaleLinear().domain([-10, 40]).range([200, 0]);
|
||||
const container = d3.select(vis);
|
||||
container
|
||||
.selectAll('rect')
|
||||
.data(data)
|
||||
.enter()
|
||||
.append('rect')
|
||||
.attr('width', xScale.bandwidth())
|
||||
.attr('heigth', (data) => yScale(data.avgTemp))
|
||||
.attr('fill', 'black')
|
||||
})
|
||||
</script>
|
||||
<main>
|
||||
<div bind:this={vis}><svg bind:this={chart}></svg></div>
|
||||
<svg bind:this={vis}></svg>
|
||||
</main>
|
||||
|
|
|
|||
Loading…
Referencia en una nova incidència