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Manhattan buildings by number of floors over the years | CARTO VL
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Manhattan buildings by number of floors over the years | CARTO VL</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta charset="UTF-8"> | |
| <!-- Include CARTO VL JS --> | |
| <script src="https://libs.cartocdn.com/carto-vl/v0.4.0/carto-vl.js"></script> | |
| <!-- Include Mapbox GL JS --> | |
| <script src="https://libs.cartocdn.com/mapbox-gl/v0.45.0-carto1/mapbox-gl.js"></script> | |
| <!-- Include Mapbox GL CSS --> | |
| <link href="https://libs.cartocdn.com/mapbox-gl/v0.45.0-carto1/mapbox-gl.css" rel="stylesheet" /> | |
| <style> | |
| body { | |
| margin: 0; | |
| padding: 0; | |
| } | |
| #map { | |
| position: absolute; | |
| height: 100%; | |
| width: 100%; | |
| } | |
| #year { | |
| position: fixed; | |
| left: 48px; | |
| top: 48px; | |
| color: white; | |
| font-size: 42px; | |
| font-family: sans-serif; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <div id="year"> | |
| 1785 | |
| </div> | |
| <script> | |
| const s = carto.expressions; | |
| const map = new mapboxgl.Map({ | |
| container: 'map', | |
| style: 'https://basemaps.cartocdn.com/gl/dark-matter-gl-style/style.json', | |
| center: [-73.97536949793329, 40.75490160473558], | |
| zoom: 12, | |
| dragRotate: false | |
| }); | |
| carto.setDefaultAuth({ | |
| user: 'cartovl', | |
| apiKey: 'default_public' | |
| }); | |
| const source = new carto.source.Dataset('mnmappluto'); | |
| const NO_FADE_OUT = Number.MAX_SAFE_INTEGER; | |
| const viz = new carto.Viz(` | |
| color: ramp(linear(log($numfloors), 1, 4), SunsetDark) | |
| strokeWidth: 0 | |
| filter: $numfloors != 0 and torque(linear($yearbuilt, 1765, 2018), 30, fade(0.5, ${NO_FADE_OUT})) | |
| `); | |
| const torque = viz.filter.b; | |
| const layer = new carto.Layer('layer', source, viz); | |
| layer.addTo(map, 'watername_ocean'); | |
| const year = document.querySelector('#year'); | |
| setInterval(() => { | |
| year.innerText = Math.floor(torque.getSimTime()); | |
| }, 250); | |
| </script> | |
| </body> | |
| </html> |
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