Simple zoomable map made with Spam.js.
Filling the polygon on hover and setting a higher zoomScale value.
Last active
October 28, 2017 15:05
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Swiss cantons
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| border: none | |
| height: 615 | |
| license: mit |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <meta charset="utf-8" /> | |
| <body> | |
| <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <script src="https://d3js.org/topojson.v1.min.js"></script> | |
| <script src="https://unpkg.com/rbush@1.4.3/rbush.js"></script> | |
| <script src="https://unpkg.com/spamjs@1.1.0/spam.min.js"></script> | |
| <script type='text/javascript'> | |
| var hover = null; | |
| d3.json("switzerland.json", function(error, d) { | |
| topojson.presimplify(d); | |
| var map = new ZoomableCanvasMap({ | |
| element: "body", | |
| zoomScale: 0.8, | |
| data: [ | |
| { | |
| features: topojson.feature(d, d.objects["switzerland"]), | |
| static: { | |
| paintfeature: function(parameters, d) { | |
| parameters.context.lineWidth = 1 / parameters.scale; | |
| parameters.context.stroke(); | |
| } | |
| }, | |
| dynamic: { | |
| postpaint: function(parameters) { | |
| if (!hover) return; | |
| parameters.context.beginPath(); | |
| parameters.context.lineWidth = 2 / parameters.scale; | |
| parameters.context.fillStyle = "rgb(241, 205, 151)"; | |
| parameters.path(hover); | |
| parameters.context.stroke(); | |
| parameters.context.fill(); | |
| } | |
| }, | |
| events: { | |
| hover: function(parameters, d) { | |
| hover = d; | |
| parameters.map.paint(); | |
| }, | |
| click: function(parameters, d) { | |
| parameters.map.zoom(d); | |
| } | |
| } | |
| } | |
| ] | |
| }); | |
| map.init(); | |
| }); | |
| </script> |
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