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Line segment gradients
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" /> | |
| <script src="https://api.mapbox.com/mapbox-gl-js/v2.7.0/mapbox-gl.js"></script> | |
| <link href="https://api.mapbox.com/mapbox-gl-js/v2.7.0/mapbox-gl.css" rel="stylesheet" /> | |
| <style> | |
| body { | |
| margin: 0; | |
| padding: 0; | |
| } | |
| #map { | |
| position: absolute; | |
| top: 0; | |
| bottom: 0; | |
| width: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script> | |
| mapboxgl.accessToken = 'pk.eyJ1IjoibWFsLXdvb2QiLCJhIjoiY2oyZ2t2em50MDAyMzJ3cnltMDFhb2NzdiJ9.X-D4Wvo5E5QxeP7K_I3O8w'; | |
| var map = new mapboxgl.Map({ | |
| container: 'map', | |
| style: 'mapbox://styles/mapbox/streets-v11', | |
| center: [-70.24761, 43.66783], | |
| zoom: 16 | |
| }); | |
| map.on('load', function () { | |
| var gradientObject = { 'segment-one': ['#3AB1BA', '#92E9F0'], 'segment-two': ['#BB3131', '#F09E9E'], 'segment-three': ['#C3C332', '#FAFAC8'] } | |
| map.addSource('segment-one', { | |
| 'type': 'geojson', | |
| 'lineMetrics': true, | |
| 'data': { | |
| "type": "Feature", | |
| "properties": { "test": "one" }, | |
| "geometry": { | |
| "type": "LineString", | |
| "coordinates": [ | |
| [ | |
| -70.24357795715332, | |
| 43.667421484858984 | |
| ], | |
| [ | |
| -70.24492040276527, | |
| 43.668323672173734 | |
| ], | |
| [ | |
| -70.24628162384033, | |
| 43.667250746808946 | |
| ] | |
| ] | |
| } | |
| } | |
| }); | |
| map.addSource('segment-two', { | |
| 'type': 'geojson', | |
| 'lineMetrics': true, | |
| 'data': { | |
| "type": "Feature", | |
| "properties": { "test": "two" }, | |
| "geometry": { | |
| "type": "LineString", | |
| "coordinates": [ | |
| [ | |
| -70.24628162384033, | |
| 43.667250746808946 | |
| ], | |
| [ | |
| -70.24744302034378, | |
| 43.668063688402846 | |
| ], | |
| [ | |
| -70.24799019098282, | |
| 43.66761938517289 | |
| ] | |
| ] | |
| } | |
| } | |
| }); | |
| map.addSource('segment-three', { | |
| 'type': 'geojson', | |
| 'lineMetrics': true, | |
| 'data': { | |
| "type": "Feature", | |
| "properties": { "test": "three" }, | |
| "geometry": { | |
| "type": "LineString", | |
| "coordinates": [ | |
| [ | |
| -70.24799019098282, | |
| 43.66761938517289 | |
| ], | |
| [ | |
| -70.2495351433754, | |
| 43.668694244109616 | |
| ], | |
| [ | |
| -70.25055438280106, | |
| 43.667908473674466 | |
| ], | |
| [ | |
| -70.25160312652586, | |
| 43.66886497805366 | |
| ] | |
| ] | |
| } | |
| } | |
| }); | |
| for (const property in gradientObject) { | |
| map.addLayer({ | |
| 'id': property, | |
| 'type': 'line', | |
| 'source': property, | |
| 'layout': { | |
| 'line-join': 'round', | |
| 'line-cap': 'round' | |
| }, | |
| 'paint': { | |
| 'line-width': 8, | |
| 'line-gradient': [ | |
| 'interpolate', | |
| ['linear'], | |
| ['line-progress'], | |
| 0, | |
| gradientObject[property][0], | |
| 1, | |
| gradientObject[property][1] | |
| ] | |
| } | |
| }); | |
| } | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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