August Projection

Ginzburg VIII

This example displays a world map using the Ginzburg VIII projection, a pseudocylindrical map projection that curves meridians to create a distinctive, globe-like appearance. The map shows landmasses in dark gray with white country boundaries, overlaid on a graticule grid and enclosed by a circular sphere outline. Built with D3 v3, it uses `d3.geo.ginzburg8`, `d3.geo.path`, and `d3.geo.graticule` to render the projection, graticule, and sphere. Geographic data comes from a TopoJSON file of world land and country boundaries, loaded via `topojson.feature` and `topojson.mesh`.

Cylindrical Stereographic

A world map is rendered using the cylindrical stereographic projection, showcasing global landmasses and country boundaries over a graticule grid. The visualization uses the `d3.geoCylindricalStereographic` projection from the d3-geo-projection plugin, with `d3.geoPath` drawing the geographic features. Land areas are filled dark, while country borders appear as white lines, and the sphere outline is traced in black. The map is built from TopoJSON world data loaded via `d3.json`, with geographic features extracted using the `topojson.feature` and `topojson.mesh` APIs.

Cylindrical Equal-Area

This example shows a world map rendered using the cylindrical equal-area projection, with dark landmasses and light country boundaries overlaid on a graticule. The projection’s shape is modified by selecting different standard parallels, such as Gall–Peters or Hobo–Dyer, highlighting how the choice affects the map’s proportions. The visualization uses `d3.geoCylindricalEqualArea` and `d3.geoPath` from the `d3-geo-projection` library to draw the paths, while geodata is loaded as TopoJSON from a GitHub-hosted file. The SVG output is styled with CSS classes for the graticule, land, and boundaries.

Aitoff

This example displays a world map using the Aitoff projection, a compromise projection that represents the entire globe in an ellipse. The map shows landmasses in dark gray and country boundaries as white lines over a graticule of latitude and longitude lines. Built with D3 v3 and the `d3.geo.aitoff` projection from the geo.projection plugin, it uses `d3.geo.path` to render the sphere, graticule, and land features. The world data is loaded as TopoJSON from a remote gist and processed with `topojson.feature` and `topojson.mesh`.

Transverse Mercator

This example demonstrates the transverse Mercator map projection, displaying world landmasses and country boundaries within a graticule grid. The map is rendered as SVG using the D3.js library, specifically employing the `d3.geoTransverseMercator` projection and `d3.geoPath` for drawing geometries. World data comes from the `world-atlas` package, processed with `topojson-client` to extract land and boundary features. The visualization includes a spherical outline, a graticule, and styled land and boundary paths, all centered within a 960x960 canvas.

Rectangular Polyconic

This example demonstrates the rectangular polyconic map projection, a pseudoconical projection that renders the world with curved meridians and straight parallels. The map shows landmasses in dark gray with country boundaries in white, overlaid on a graticule grid and enclosed by a spherical outline. Built with D3.js v3, it uses `d3.geo.rectangularPolyconic` from the extended projections plugin, `d3.geo.path` for geographic rendering, and `d3.geo.graticule` to generate the grid. World geometry comes from a TopoJSON file loaded via `topojson.feature` and `topojson.mesh`.

83% match

Equidistant Conic Projection

This example shows a world map drawn with the equidistant conic projection, including a graticule, landmasses, and country boundaries. The map is rendered as SVG using D3’s `d3.geo.conicEquidistant` projection and `d3.geo.path` to generate the paths. A sphere outline and graticule are drawn first, then geographic data from a TopoJSON file (`world-50m.json`) is loaded with `topojson.feature` and `topojson.mesh` to display land and political borders.

83% match

Stereographic

A world map is displayed using the stereographic projection, showing landmasses in dark gray and country boundaries in white over a graticule grid. The projection rotates the globe by -20 degrees longitude and clips the view to a square. Built with D3 v3, the example uses `d3.geo.stereographic`, `d3.geo.path`, and `d3.geo.graticule`, rendering SVG paths from TopoJSON world data. The graticule is drawn beneath the land and boundary layers.