Random points spellling 2023 on map
Last active
November 29, 2022 18:36
-
-
Save nyem69/0ac5c1301848a74aa5dd1fa17fef394f to your computer and use it in GitHub Desktop.
Random points spellling 2023 on map
This file contains 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.
Learn more about bidirectional Unicode characters
| license: mit |
This file contains 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.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>2023</title> | |
| <!-- | |
| https://d3js.org | |
| --> | |
| <script type="text/javascript" src="//d3js.org/d3.v7.min.js"></script> | |
| <!-- | |
| https://opentype.js.org/ | |
| --> | |
| <script src="https://cdn.jsdelivr.net/npm/opentype.js@latest/dist/opentype.min.js"></script> | |
| <!-- | |
| https://gist.github.com/timo22345/9413158 | |
| --> | |
| <script type="text/javascript" src="//libjs.pages.dev/svg-flattener/flattener.js"></script> | |
| <!-- | |
| https://www.npmjs.com/package/@bettercorp/svg-to-geojson | |
| https://github.com/davecranwell/svg-to-geojson | |
| --> | |
| <script type="text/javascript" src="//libjs.pages.dev/svg-to-geojson/svg-to-geojson.min.js"></script> | |
| <!-- | |
| https://turfjs.org | |
| --> | |
| <script type="text/javascript" src="//libjs.pages.dev/turf/5.1.16/turf.min.js"></script> | |
| <!-- | |
| https://leaflet.js | |
| --> | |
| <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.3/dist/leaflet.css" integrity="sha256-kLaT2GOSpHechhsozzB+flnD+zUyjE2LlfWPgU04xyI=" crossorigin=""/> | |
| <script src="https://unpkg.com/leaflet@1.9.3/dist/leaflet.js" integrity="sha256-WBkoXOwTeyKclOHuWtc+i2uENFpDZ9YPdf5Hf+D7ewM=" crossorigin=""></script> | |
| </head> | |
| <body> | |
| <script> | |
| opentype.load('https://libjs.pages.dev/font/lato/DvlFBScY1r-FMtZSYIYoYw.ttf', function(err, font) { | |
| if (err) { | |
| alert('Font could not be loaded: ' + err); | |
| } else { | |
| // Construct a Path object containing the letter shapes of the given text. | |
| // The other parameters are x, y and fontSize. | |
| // Note that y is the position of the baseline. | |
| const path1 = font.getPath('2', 0, 150, 72), | |
| path2 = font.getPath('0', 40, 150, 72), | |
| path3 = font.getPath('2', 80, 150, 72), | |
| path4 = font.getPath('3', 120, 150, 72); | |
| // draw the text in svg | |
| d3.select('body') | |
| .style('margin',0) | |
| .style('padding',0) | |
| .append('svg').attr('id','mysvg') | |
| .append('g') | |
| .attr('transform','translate(170,250)') | |
| .selectAll('path').data([ | |
| path1.toPathData(5), | |
| path2.toPathData(5), | |
| path3.toPathData(5), | |
| path4.toPathData(5), | |
| ]) | |
| .join('path') | |
| .attr('transform','scale(-1)') | |
| .attr('d', d=>d); | |
| let sel = d3.select('#mysvg'), | |
| w = +sel.style('width').replace('px',''), | |
| h = +sel.style('height').replace('px',''); | |
| sel.attr('width',w) | |
| .attr('height',h); | |
| // flatten any transform | |
| flatten(document.getElementById('mysvg'), true); | |
| let bounds = [[99, 0], [120, 8]], | |
| boundsLatLng = bounds.map(d=>d.reverse()); | |
| // svg to geojson | |
| var polygon = svgtogeojson.svgToGeoJson( | |
| [[85, -6], [120, 6]].map(d=>d.reverse()), | |
| document.getElementById('mysvg'), | |
| 3 | |
| ); | |
| d3.select('#mysvg').remove(); | |
| d3.select('body') | |
| .append('div') | |
| .attr('id','map') | |
| .style('width', innerWidth+'px') | |
| .style('height', innerHeight+'px') | |
| .style('overflow','hidden'); | |
| const map = L.map('map',{maxBounds: boundsLatLng, preferCanvas:true, minZoom:5}) | |
| .fitBounds(boundsLatLng); | |
| const tiles = L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', { | |
| maxZoom: 19, | |
| attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>' | |
| }).addTo(map); | |
| // create randowm points, filter out those not overlap with polygon | |
| var randomPoints = turf.randomPoint(5000, {bbox: [99, 0, 120, 8] }), | |
| ptsWithin = turf.pointsWithinPolygon(randomPoints, polygon); | |
| // render marker on map | |
| L.geoJSON(ptsWithin, { | |
| pointToLayer(feature, latlng) { | |
| return L.marker(latlng); | |
| }, | |
| }).addTo(map); | |
| } | |
| }); | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment