3.0

Wiki ▸ Release Notes ▸ 3.0

The page covers new features in 3.0; see Upgrading to 3.0 for how to migrate from 2.x to 3.0.

Transitions

• immediate evaluation of transition.attr, transition.style, etc.
• simplify chained transitions with transition.transition rather than end events
• reselection of transitions (e.g., customize d3.svg.axis transitions)

Requests

• progress events
• abort
• multiple listeners
• customize method & headers, post data
• CORS support for IE9
• standard Node-style callbacks, compatible with Queue.js

Geo

d3.geo.projection

• antimeridian cutting
• projection.clipAngle - robust circle clipping (polar distortion, )
• projection.precision - adaptive supersampling for projections
• projection.rotate - three-axis rotation, world tour
• raw projections (e.g., d3.geo.stereographic.raw) - easier composition
• d3.geo.projectionMutator - extensible design for new projections
• support for right hand rule
• sphere rendering via new GeoJSON "Sphere" type
• speed!

d3.geo.stream

• direct to canvas rendering (path.context)!
• streaming geometry transformations (e.g., simplification)
• less memory overhead during projection operations

Utilities

• d3.geo.graticule - display grid lines
• d3.geo.circle - small and great circle rendering (like Tissot's indicatrix)
• d3.geo.interpolate - interpolate along great arcs
• d3.geo.{area,centroid,bounds} - spherical area, centroid and bounds
• path.{area,centroid,bounds} - observes clipping & resampling

Extended Projections

• d3.geo.aitoff - Aitoff
• d3.geo.albers - Albers equal-area conic
• d3.geo.august - August conformal
• d3.geo.azimuthalEqualArea - Lambert azimuthal equal-area
• d3.geo.azimuthalEquidistant - Azimuthal equidistant
• d3.geo.bonne - Bonne
• d3.geo.collignon - Collignon
• d3.geo.conicConformal - Lambert conformal conic
• d3.geo.conicEquidistant - Conic equidistant
• d3.geo.cylindricalEqualArea - Cylindrical equal-area
• d3.geo.eckert1 - Eckert I
• d3.geo.eckert2 - Eckert II
• d3.geo.eckert3 - Eckert III
• d3.geo.eckert4 - Eckert IV
• d3.geo.eckert5 - Eckert V
• d3.geo.eckert6 - Eckert VI
• d3.geo.eisenlohr - Eisenlohr conformal
• d3.geo.equirectangular - Equirectangular (Plate Carrée)
• d3.geo.gnomonic - Gnomonic
• d3.geo.gringorten - Gringorten
• d3.geo.guyou - Guyou hemisphere-in-a-square
• d3.geo.hammer - Hammer
• d3.geo.homolosine - Goode Homolosine
• d3.geo.kavrayskiy7 - Kavrayskiy VII
• d3.geo.lagrange - Lagrange conformal
• d3.geo.larrivee - Larrivée
• d3.geo.mercator - Mercator
• d3.geo.miller - Miller
• d3.geo.mollweide - Mollweide
• d3.geo.nellHammer - Nell–Hammer
• d3.geo.orthographic - Orthographic
• d3.geo.polyconic - Polyconic
• d3.geo.robinson - Robinson
• d3.geo.satellite - Satellite (tilted perpsective)
• d3.geo.sinusoidal - Sinusoidal
• d3.geo.sinuMollweide - Sinu-Mollweide
• d3.geo.stereographic - Stereographic
• d3.geo.vanDerGrinten - Van der Grinten
• d3.geo.wagner6 - Wagner VI
• d3.geo.winkel3 - Winkel Tripel

Quadtree Tiles

• d3.geo.tile

TopoJSON

Replacement for GeoJSON that typically provides 80-90% smaller file sizes. Also encodes topology, enabling topology-preserving shape simplification (à la MapShaper), map coloring, cartograms, boundary mesh computation, and more!

Other

• d3.shuffle - Fisher–Yates shuffle
• d3.format and d3.time.format - align, fill and localization support
• d3.layout.treemap - slice and dice
• moved to bl.ocks.org for easier browsing & forking
• various bug fixes and performance improvements
• d3.hexbin plugin - hexagonal binning

And more!