Floating Landmasses

Floating Landmasses in d3v4

This example shows two concentric spheres of floating landmasses in an orthographic projection, with a blurred shadow sphere beneath a crisply rendered globe. It uses `d3.geoOrthographic` and `d3.geoPath` to draw land and graticule features from a World Atlas TopoJSON dataset onto three stacked Canvas elements, the middle one blurred via CSS `filter` for depth. An animation loop rotates the projection, while `d3.geoInertiaDrag` enables inertial dragging interaction. The two spheres are created by changing the projection’s scale and `clipAngle` between passes.

PPhilippe Rivière

90% match

Rotating Orthographic

A rotating orthographic projection of the world, rendered via canvas animation, shows the globe slowly spinning as landmasses and country borders move across the sphere. The code uses `d3.geo.orthographic` with a clip angle to define the projection, `d3.geo.path` to draw land, borders, and graticule, and `d3.json` to load world-110m GeoJSON data. A timer updates the rotation angle over time, clearing and redrawing the canvas each frame.

84% match

See-Through Globe II

A rotating orthographic globe displays both its near and far hemispheres through a see-through effect. The code uses `d3.geo.orthographic` with a 90° clip angle, drawing the front-facing land and graticule in dark tones, then flipping the canvas horizontally with `context.scale` and re-projecting with a 180° longitude offset to render the back-facing polygons in lighter colors. The animation runs on a `d3.timer`, with land data from a TopoJSON world-110m file and rendering via Canvas 2D.

82% match

Simplified Globe

A simplified globe spins continuously, displaying the world's landmasses as a dark silhouette against a plain background. The visualization uses an orthographic projection (`d3.geoOrthographic`) and renders the geographic features as an SVG path via `d3.geoPath`. Land data comes from the `world-110m` TopoJSON file, which is simplified with `topojson.presimplify` and `topojson.simplify`. A `d3.timer` drives the animation, rotating the projection and tilting it sinusoidally to create a wobbling effect.

CCurran Kelleher

Rotating Transverse Mercator

A rotating transverse Mercator projection continuously spins a world map around its central meridian, showing how the projection distorts shapes and areas away from the axis of rotation. The animation uses a dark canvas with white country borders and a semi-transparent graticule, all rendered via `d3.geoPath` and Canvas 2D drawing. Land polygons and country boundaries come from TopoJSON data in the world-atlas package, while a `d3.timer` updates the projection’s rotation each frame. The code specifies `d3.geoTransverseMercator`, `d3.geoGraticule10`, and `topojson.feature` and `topojson.mesh` for data processing.

Orthographic

This example shows a globe rendered with the orthographic projection, displaying landmasses and country boundaries over a graticule, all clipped to a sphere. The visualization uses D3 v3’s `d3.geo.orthographic` for projection, `d3.geo.path` for drawing, and `d3.geo.graticule` for the grid. Land and boundary data come from a TopoJSON world file (world-50m), processed with `topojson.feature` and `topojson.mesh`. The sphere is drawn twice: once as a black stroke and once as a white fill, with the land and boundaries layered in between.

This Is a Globe

A rotating orthographic globe displays Earth’s landmasses as a flat silhouette on a circular canvas. The map is rendered using D3 v3’s `d3.geo.orthographic` projection and `d3.geo.path`, with TopoJSON land data from the world-110m file. A `d3.timer` advances the rotation each frame, clearing and redrawing the canvas context, while a stroked arc outlines the sphere’s edge.