code4policy · github-classroom · Jan 8, 2024 · Jan 15, 2024 · Jan 16, 2024
diff --git a/311_boston_data.csv b/311_boston_data.csv
@@ -0,0 +1,45 @@
+reason,Count
+Abandoned Bicycle,1318
+Administrative & General Requests,2025
+Air Pollution Control,35
+Alert Boston,3
+Animal Issues,4155
+Billing,6
+Boston Bikes,64
+Bridge Maintenance,8
+Building,5209
+Catchbasin,621
+Cemetery,29
+Code Enforcement,31812
+Employee & General Comments,2166
+Enforcement & Abandoned Vehicles,61541
+Environmental Services,4416
+Fire Hydrant,205
+General Request,196
+Generic Noise Disturbance,109
+Graffiti,1839
+Health,1349
+Highway Maintenance,25096
+Housing,7590
+MBTA,1
+Massport,8
+Needle Program,7413
+Neighborhood Services Issues,28
+Noise Disturbance,832
+Notification,607
+Office of The Parking Clerk,18
+Operations,283
+Park Maintenance & Safety,7932
+Parking Complaints,19
+Pothole,85
+Programs,6
+Recycling,9955
+Sanitation,59389
+Sidewalk Cover / Manhole,291
+Signs & Signals,11209
+Street Cleaning,45659
+Street Lights,8499
+Traffic Management & Engineering,751
+Trees,10390
+Valet,7
+Weights and Measures,52
diff --git a/index.html b/index.html
@@ -1 +1,21 @@
-<!-- Your HTML goes here -->
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="styles.css"> <!-- Link to the external CSS file -->
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:400,700&display=swap"> 
+    <title>D3 Bar Chart - 311 Calls in Boston</title>
+    <link rel="stylesheet" href="styles.css"> <!-- Link to the external CSS file -->
+</head>
+<body>
+     <header>
+        <h1>311 Calls in Boston in 2023</h1>
+        <p>Broken down by the top 10 types</p>
+        <div id="chart_311" class="chart"></div>
+    </header>
+    <!-- Your chart will be appended here -->
+    <script src="https://d3js.org/d3.v7.min.js"></script>
+    <script src="script.js"></script>
+</body>
+</html>
diff --git a/script.js b/script.js
@@ -0,0 +1,70 @@
+// Load CSV data
+d3.csv('311_boston_data.csv').then(data => {
+    // Process the data
+    data.forEach(d => {
+        d.Count = +d.Count; // Convert Count to a number
+    });
+
+    // Sort the data by Count in descending order. first step to top 10
+    data.sort((a, b) => b.Count - a.Count);
+
+    // Take only the top 10 types
+    const top10Data = data.slice(0, 10);
+
+    // Set up SVG container
+    const svgWidth = 800;
+    const svgHeight = 500;
+    const margin = { top: 40, right: 40, bottom: 80, left: 200 };
+    const width = svgWidth - margin.left - margin.right;
+    const height = svgHeight - margin.top - margin.bottom;
+
+    const svg = d3.select('#chart_311')
+        .append('svg')
+        .attr('width', svgWidth)
+        .attr('height', svgHeight)
+        .append('g')
+        .attr('transform', `translate(${margin.left},${margin.top})`);
+
+    // Create scales
+    const yScale = d3.scaleBand()
+        .domain(top10Data.map(d => d.reason))
+        .range([0, height])
+        .padding(0.2);
+
+    const xScale = d3.scaleLinear()
+        .domain([0, d3.max(top10Data, d => d.Count)])
+        .range([0, width]);
+
+    // Create bars
+    svg.selectAll('rect')
+        .data(top10Data)
+        .enter()
+        .append('rect')
+        .attr('x', 0)
+        .attr('y', d => yScale(d.reason))
+        .attr('width', d => xScale(d.Count))
+        .attr('height', yScale.bandwidth())
+        .attr('fill', 'blue')
+        .on('mouseover', function (event, d) {
+            d3.select(this).attr('fill', 'orange'); // Change color on hover
+        })
+        .on('mouseout', function () {
+            d3.select(this).attr('fill', 'blue'); // Revert color on mouseout
+        });
+
+    // Add axes
+    svg.append('g')
+        .call(d3.axisLeft(yScale));
+
+    svg.append('g')
+        .attr('transform', `translate(0,${height})`)
+        .call(d3.axisBottom(xScale));
+
+    // Add attribution line at the bottom
+    svg.append('text')
+        .attr('x', width / 2)
+        .attr('y', height + margin.top + 20) // Adjust the y-coordinate for proper placement
+        .attr('text-anchor', 'left')
+        .style('font-size', '12px')
+        .text('Chart created by Aarushi Sahejpal. Data source: Boston.gov');
+});
diff --git a/styles.css b/styles.css
@@ -0,0 +1,45 @@
+/* Add any CSS styles here */
+body {
+    font-family: 'Roboto', sans-serif; /* Use Roboto font */
+    background-color: whitesmoke;
+    color: black;
+    margin: 20px;
+}
+
+header {
+    text-align: left;
+    margin-bottom: 10px; /* Adjust margin as needed for the header */
+}
+
+svg {
+    margin-top: 10px; /* Adjust margin as needed for the chart */
+}s
+
+h1 {
+    color: black;
+    font-size: 2em; /* Increase font size for the main header */
+    margin-bottom: 0; /* No margin at the bottom of the main header */
+    transition: color 0.3s; /* Smooth transition for color change on hover */
+}
+
+p {
+    line-height: 1.5;
+    font-size: 1.2em; /* Increase font size for the subheader */
+    margin-top: 0; /* sNo margin at the top of the subheader */
+    margin-bottom: 20px; /* Adjust margin as needed for the subheader */
+    font-weight: bold;
+    transition: color 0.3s; /* Smooth transition for color change on hover */
+}
+
+/* Hover styles */
+h1:hover,
+p:hover {
+    color: #007bff; /* Change the color on hover */
+}
+
+#attribution {
+    text-align: center;
+    position: absolute;
+    bottom: 10px;
+    width: 100%;
+}