Equidistant Conic Projection

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.

86% match

Polyconic

This visualization demonstrates the Polyconic map projection, a compromise projection that preserves distances along the central meridian and each parallel. It displays the world’s landmasses as solid black shapes with white country boundaries, overlaid on a graticule grid and an outlined sphere. The example uses the D3 v3 library with the `d3.geo.polyconic` projection plugin, `d3.geo.path` for rendering, and `topojson.v1` to process world-50m.json geographic data, drawing everything as SVG paths.

85% match

Lambert Conformal Conic

The example shows a world map rendered with the Lambert conformal conic projection, using a graticule and sphere outline to clarify the projection’s shape. It displays landmasses in dark gray and country borders as thin white lines over a light background. The visualization uses d3.geoConicConformal to define the projection, d3.geoPath to generate SVG paths, and topojson.feature and topojson.mesh to extract land and border geometries from the world-50m dataset. The graticule is drawn with d3.geoGraticule10, and all elements are rendered as SVG paths.

85% match

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`.

85% match

Gnomonic

This example shows the world map projected using the gnomonic projection, where great circles appear as straight lines and distortion increases toward the edges. The map is clipped at a 90-degree angle, displaying landmasses in dark gray with white country boundaries over a graticule grid. The visualization uses D3 v3’s `d3.geo.gnomonic` projection and `d3.geo.path` to render SVG paths from TopoJSON world data, with the graticule drawn via `d3.geo.graticule`. The code sets projection scale, translation, and precision before loading the `world-50m.json` file.

Craster Parabolic

This example displays a world map projected using the Craster parabolic projection, with graticule lines, country boundaries, and landmasses rendered in SVG. The visualization uses d3.geo.craster from the d3.geo.projection.v0 library, along with d3.geo.path for geographic path generation and topojson.v1 to parse world-50m.json data. A sphere outline and fill are drawn first, followed by graticule and geographic features from the TopoJSON file, with styling applied via CSS classes.

Spherical Mercator

The example shows the spherical Mercator projection applied to a world map, displayed within a circular outline that represents the globe. The map renders landmasses in dark gray with white country boundaries, overlaying a graticule grid of meridians and parallels. Built with d3.geoMercator and d3.geoPath, it draws the sphere outline, graticule, and world geography via SVG paths. Geographic data comes from the world-atlas TopoJSON dataset, processed with topojson-client to extract land and country meshes.

Clipped Conic Conformal

A map of the world is rendered using the Clipped Conic Conformal projection, showing landmasses in dark gray with country borders in white over a graticule of light gray lines. The visualization clips the map to the projection's extent so that only the relevant region is visible. It uses d3.geoConicConformal, d3.geoPath, and d3.geoGraticule, with vector data from the `world-50m.v1.json` TopoJSON file, and the world land and country meshes are drawn via `topojson.feature` and `topojson.mesh` into the SVG canvas.