Necessitates Proper Modularity

    d3-geo-projection

    0.2.16 • Public • Published

    Extended Geographic Projections

    airy
    aitoff
    albers *
    albersUsa *
    armadillo
    august
    azimuthalEqualArea *
    azimuthalEquidistant *
    baker
    berghaus
    boggs
    bonne
    bromley
    chamberlin
    collignon
    conicEqualArea *
    conicConformal *
    conicEquidistant *
    craig
    craster
    cylindricalEqualArea
    cylindricalStereographic
    eckert1
    eckert2
    eckert3
    eckert4
    eckert5
    eckert6
    eisenlohr
    equirectangular *
    fahey
    gilbert
    gingery
    ginzburg4
    ginzburg5
    ginzburg6
    ginzburg8
    ginzburg9
    gnomonic *
    gringorten
    guyou
    hammer
    hammerRetroazimuthal
    healpix
    hill
    homolosine
    kavrayskiy7
    lagrange
    larrivee
    laskowski
    littrow
    loximuthal
    mercator *
    miller
    modifiedStereographic
    mollweide
    mtFlatPolarParabolic
    mtFlatPolarQuartic
    mtFlatPolarSinusoidal
    naturalEarth
    nellHammer
    orthographic *
    patterson
    peirceQuincuncial
    polyconic
    polyhedron.butterfly
    polyhedron.waterman
    rectangularPolyconic
    robinson
    satellite
    sinuMollweide
    sinusoidal
    stereographic *
    times
    twoPointAzimuthal
    twoPointEquidistant
    transverseMercator *
    vanDerGrinten
    vanDerGrinten2
    vanDerGrinten3
    vanDerGrinten4
    wagner4
    wagner6
    wagner7
    wiechel
    winkel3

    Projections:

    This plugin also provides d3.geo.interrupt, which can be used to create arbitrary interrupted projections from a given raw projection. For example, see Philbrick’s interrupted Sinu-Mollweide.

    This plugin requires D3 3.0 or greater. To use the official hosted version, include the projection plugin after including D3:

    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script src="http://d3js.org/d3.geo.projection.v0.min.js" charset="utf-8"></script>

    Alternatively, you can clone this repo, download the zipball, or right-click d3.geo.projection.v0.min.js and save.

    To use this plugin within a Node.js context, you can npm install d3 d3-geo-projection and then say:

    var d3 = require("d3");
     
    require("d3-geo-projection")(d3);

    Subsequently, d3.geo will contain all the extended projections.

    Defining a New Projection

    First define your raw projection function:

    function cosinusoidal(λ, φ) {
      return [λ * Math.sin(φ), φ];
    }
     
    cosinusoidal.invert = function(x, y) {
      return [/ Math.sin(y), y];
    };

    Then create a constructor using d3.geo.projection:

    d3.geo.cosinusoidal = function() {
      return d3.geo.projection(cosinusoidal);
    };

    You can optionally expose the raw projection to facilitate composite projections:

    (d3.geo.cosinusoidal = function() {
      return d3.geo.projection(cosinusoidal);
    }).raw = cosinusoidal;

    Install

    npm i d3-geo-projection@0.2.16

    Version

    0.2.16

    License

    ISC

    Last publish

    Collaborators

    • mbostock
    • recifs