add sensor datas
This commit is contained in:
YueLiang Chen(陳岳良)
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test/Sensor_datas/2024-12-04_12-24-08.txt
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test/Sensor_datas/2024-12-04_12-24-08.txt
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test/Sensor_datas/2024-12-04_12-25-40.txt
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test/Sensor_datas/2024-12-04_12-25-40.txt
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test/Sensor_datas/P_20241204_202152.jpg
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test/Sensor_datas/P_20241204_202152.jpg
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test/Sensor_datas/P_20241204_202412.jpg
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test/Sensor_datas/P_20241204_202412.jpg
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test/Sensor_datas/visualization.html
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test/Sensor_datas/visualization.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>D3.js Line Chart - Local File with Point Details</title>
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<script src="https://d3js.org/d3.v7.min.js"></script>
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<style>
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.line {
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fill: none;
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stroke: steelblue;
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stroke-width: 2px;
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}
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.axis {
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font: 10px sans-serif;
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}
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.axis path,
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.axis line {
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fill: none;
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stroke: #000;
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shape-rendering: crispEdges;
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}
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.dot {
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fill: steelblue;
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stroke: #fff;
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}
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.tooltip {
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position: absolute;
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text-align: center;
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width: 120px;
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height: 40px;
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padding: 2px;
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font: 12px sans-serif;
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background: lightsteelblue;
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border: 0px;
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border-radius: 8px;
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pointer-events: none;
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}
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</style>
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</head>
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<body>
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<h1>D3.js Line Chart from Local JSON File with Point Details</h1>
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<input type="file" id="fileInput">
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<div id="chart"></div>
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<script>
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// Set the dimensions and margins of the graph
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const margin = {top: 20, right: 20, bottom: 30, left: 50};
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const width = 960 - margin.left - margin.right;
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const height = 500 - margin.top - margin.bottom;
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// Parse the date / time
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const parseTime = d3.timeParse("%Y-%m-%d");
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const formatTime = d3.timeFormat("%Y-%m-%d");
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// Set the ranges
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const x = d3.scaleLinear().range([0, width]);
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const y = d3.scaleLinear().range([height, 0]);
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// Define the line
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const valueline = d3.line()
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.x(d => x(d.timestamp))
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.y(d => y(d.lux));
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function weightIntegral(x) {
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return x * (x * 0.5 + 4000000000);
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}
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function calculateLux(datas, now) {
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var sum = 0, totalWeight = 0, endDelta = 100000000;
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for (var i = datas.length - 1; i >= 0; i--) {
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var eventTime = datas[i].timestamp;
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var startDelta = eventTime - now;
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var weight = weightIntegral(endDelta) - weightIntegral(startDelta);
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var lux = datas[i].lux;
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totalWeight += weight;
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sum += lux * weight;
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endDelta = startDelta;
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}
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return sum / totalWeight;
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}
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// Function to create the chart
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function createChart(data) {
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var timestampNow;
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var fastLuxData = [];
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var slowLuxData = [];
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var datasets = [];
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for (timestampNow=data[0].timestamp; timestampNow<=data[data.length-1].timestamp; timestampNow+=200000000) {
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var fastRingBuffer = data.filter((value) => value.timestamp >= timestampNow-2000000000 && value.timestamp <= timestampNow);
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var slowRingBuffer = data.filter((value) => value.timestamp >= timestampNow-4000000000 && value.timestamp <= timestampNow);
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if (fastRingBuffer.length <= 1) {
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fastLuxData.push(data[0]);
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} else {
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fastLuxData.push({timestamp:timestampNow, lux:calculateLux(fastRingBuffer, timestampNow)});
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}
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if (slowRingBuffer.length <= 1) {
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slowLuxData.push(data[0]);
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} else {
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slowLuxData.push({timestamp:timestampNow, lux:calculateLux(slowRingBuffer, timestampNow)});
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}
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}
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var dataObj = new Object();
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dataObj.name = "original";
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dataObj.values = data;
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datasets.push(dataObj);
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var fastLuxDataObj = new Object();
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fastLuxDataObj.name = "fastLuxData";
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fastLuxDataObj.values = fastLuxData;
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datasets.push(fastLuxDataObj);
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var slowLuxDataObj = new Object();
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slowLuxDataObj.name = "slowLuxData";
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slowLuxDataObj.values = slowLuxData;
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datasets.push(slowLuxDataObj);
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console.log(datasets.length);
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console.log(datasets[0]);
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datasets = JSON.parse(JSON.stringify(datasets));
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// Clear previous chart if any
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d3.select("#chart").html("");
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// Append the svg object to the body of the page
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const svg = d3.select("#chart").append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("transform", `translate(${margin.left},${margin.top})`);
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// Create tooltip
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const tooltip = d3.select("body").append("div")
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.attr("class", "tooltip")
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.style("opacity", 0);
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// Format the data
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/*fastLuxData.forEach(function(d) {
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d.timestamp = d.timestamp;//parseTime(d.timestamp);
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d.lux = +d.lux;
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});*/
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// Scale the range of the data
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// Scale the range of the data
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x.domain(d3.extent(datasets[0].values.flatMap(d => d.timestamp), d => d.timestamp));
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y.domain([0, d3.max(datasets[0].values.flatMap(d => d.lux), d => d.lux)]);
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// Add the valueline paths
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const dataset = svg.selectAll(".dataset")
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.data(datasets)
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.enter().append("g")
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.attr("class", "dataset");
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dataset.append("path")
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.attr("class", "line")
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.attr("d", d => valueline(d.values))
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.style("stroke", d => color(d.name));
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// Add the X Axis
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svg.append("g")
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.attr("transform", `translate(0,${height})`)
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.call(d3.axisBottom(x));
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// Add the Y Axis
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svg.append("g")
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.call(d3.axisLeft(y));
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// Add the dots
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dataset.each(function(dataset) {
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d3.select(this).selectAll(".dot")
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.data(dataset.values)
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.enter().append("circle")
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.attr("class", "dot")
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.attr("r", 5)
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.attr("cx", d => x(d.timestamp))
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.attr("cy", d => y(d.lux))
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.style("fill", color(dataset.name))
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.on("mouseover", function(event, d) {
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tooltip.transition()
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.duration(200)
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.style("opacity", .9);
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tooltip.html(`${dataset.name}<br/>timestamp: ${d.timestamp}<br/>lux: ${d.lux}`)
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.style("left", (event.pageX + 5) + "px")
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.style("top", (event.pageY - 28) + "px");
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})
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.on("mouseout", function(d) {
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tooltip.transition()
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.duration(500)
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.style("opacity", 0);
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});
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});
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// Add a legend
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const legend = svg.selectAll('.legend')
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.data(datasets)
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.enter().append('g')
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.attr('class', 'legend')
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.attr('transform', (d, i) => `translate(0,${i * 20})`);
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legend.append('rect')
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.attr('x', width + 5)
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.attr('width', 18)
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.attr('height', 18)
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.style('fill', d => color(d.name));
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legend.append('text')
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.attr('x', width + 25)
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.attr('y', 9)
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.attr('dy', '.35em')
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.style('text-anchor', 'start')
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.text(d => d.name);
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}
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// File input event listener
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document.getElementById('fileInput').addEventListener('change', function(e) {
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const file = e.target.files[0];
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if (file) {
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const reader = new FileReader();
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reader.onload = function(e) {
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const contents = e.target.result;
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try {
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const data = JSON.parse(contents);
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createChart(data);
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} catch (error) {
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console.error("Error parsing JSON:", error);
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alert("Error parsing JSON file. Please make sure it's a valid JSON.");
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}
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};
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reader.readAsText(file);
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}
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});
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</script>
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</body>
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</html>
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