This is a D3 (v4) based animated orthographic globe which alows you to plot markers from a given set of geo coordinates. This solution also allows you to set spinning speed and tilt shift parameter in a config object.
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November 12, 2024 14:42
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D3 Rotating Globe with Location Marker
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| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <svg></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| const width = 960; | |
| const height = 500; | |
| const config = { | |
| speed: 0.005, | |
| verticalTilt: -30, | |
| horizontalTilt: 0 | |
| } | |
| let locations = []; | |
| const svg = d3.select('svg') | |
| .attr('width', width).attr('height', height); | |
| const markerGroup = svg.append('g'); | |
| const projection = d3.geoOrthographic(); | |
| const initialScale = projection.scale(); | |
| const path = d3.geoPath().projection(projection); | |
| const center = [width/2, height/2]; | |
| drawGlobe(); | |
| drawGraticule(); | |
| enableRotation(); | |
| function drawGlobe() { | |
| d3.queue() | |
| .defer(d3.json, 'https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/world-110m.json') | |
| .defer(d3.json, 'locations.json') | |
| .await((error, worldData, locationData) => { | |
| svg.selectAll(".segment") | |
| .data(topojson.feature(worldData, worldData.objects.countries).features) | |
| .enter().append("path") | |
| .attr("class", "segment") | |
| .attr("d", path) | |
| .style("stroke", "#888") | |
| .style("stroke-width", "1px") | |
| .style("fill", (d, i) => '#e5e5e5') | |
| .style("opacity", ".6"); | |
| locations = locationData; | |
| drawMarkers(); | |
| }); | |
| } | |
| function drawGraticule() { | |
| const graticule = d3.geoGraticule() | |
| .step([10, 10]); | |
| svg.append("path") | |
| .datum(graticule) | |
| .attr("class", "graticule") | |
| .attr("d", path) | |
| .style("fill", "#fff") | |
| .style("stroke", "#ccc"); | |
| } | |
| function enableRotation() { | |
| d3.timer(function (elapsed) { | |
| projection.rotate([config.speed * elapsed - 120, config.verticalTilt, config.horizontalTilt]); | |
| svg.selectAll("path").attr("d", path); | |
| drawMarkers(); | |
| }); | |
| } | |
| function drawMarkers() { | |
| const markers = markerGroup.selectAll('circle') | |
| .data(locations); | |
| markers | |
| .enter() | |
| .append('circle') | |
| .merge(markers) | |
| .attr('cx', d => projection([d.longitude, d.latitude])[0]) | |
| .attr('cy', d => projection([d.longitude, d.latitude])[1]) | |
| .attr('fill', d => { | |
| const coordinate = [d.longitude, d.latitude]; | |
| gdistance = d3.geoDistance(coordinate, projection.invert(center)); | |
| return gdistance > 1.57 ? 'none' : 'steelblue'; | |
| }) | |
| .attr('r', 7); | |
| markerGroup.each(function () { | |
| this.parentNode.appendChild(this); | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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| MIT License | |
| Copyright (c) 2018-2022 Atanu Mallick | |
| Permission is hereby granted, free of charge, to any person obtaining a copy | |
| of this software and associated documentation files (the "Software"), to deal | |
| in the Software without restriction, including without limitation the rights | |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| copies of the Software, and to permit persons to whom the Software is | |
| furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in all | |
| copies or substantial portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| SOFTWARE. |
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| [ | |
| {"latitude": 22, "longitude": 88}, | |
| {"latitude": 12.61315, "longitude": 38.37723}, | |
| {"latitude": -30, "longitude": -58}, | |
| {"latitude": -14.270972, "longitude": -170.132217}, | |
| {"latitude": 28.033886, "longitude": 1.659626}, | |
| {"latitude": 40.463667, "longitude": -3.74922}, | |
| {"latitude": 35.907757, "longitude": 127.766922}, | |
| {"latitude": 23.634501, "longitude": -102.552784} | |
| ] |
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