Update d3 to version 4.0.0 🚀

Hello lovely humans,

d3 just published its new version 4.0.0.

State	Update :rocket:
Dependency	d3
New version	4.0.0
Type	dependency

This version is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of d3. Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right? Are you unsure about how things are supposed to work?

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Good luck with your project :sparkles:

You rock!

:palm_tree:

GitHub Release

D3 is now modular, composed of many small libraries that you can also use independently. Each library has its own repo and release cycle for faster development. The modular approach also improves the process for custom bundles and plugins.

There are a lot of improvements in 4.0: there were about as many commits in 4.0 as in all prior versions of D3. Some changes make D3 easier to learn and use, such as immutable selections. But there are lots of new features, too! These are covered in detail in the release notes; here are a few highlights.

Colors, Interpolators and Scales

Colors now have opacity (rgba, hsla, etc.).
New Cubehelix color space.
New sequential color scales, including Viridis and cyclical Rainbow.
New point and band scales replace ordinal.rangeBands and ordinal.rangePoints.
New basis spline interpolators (e.g., continuous ColorBrewer schemes).

Shapes and Layouts

Shapes (e.g., lines, areas, arcs) can now render to Canvas.
Fixed cardinal and monotone splines.
Added parameterized Catmull–Rom and natural splines.
New deterministic, extensible velocity Verlet force layout.
New circle-packing layout!
New extensible treemap layout; improved squarified treemaps; added binary treemaps.
New stratify operator for tabular hierarchical data.
New faster, mutable, non-recursive quadtree implementation.
Voronoi diagrams now expose topological information.

Selections, Transitions and Timers

Selections and transitions are now immutable, providing a cleaner interface.
New selection.raise, selection.lower and selection.dispatch methods.
Time is now frozen in the background, avoiding unintended effort.
Timers can now be stopped externally.
Transitions can now interpolate CSS transforms (in addition to SVG transforms).
You can now cancel transitions using selection.interrupt.
Easier transition chaining thanks to new d3.active and changed transition.delay.
Better performance for homogenous transitions that share state (e.g., interpolators) across elements.
Better state persistence and enforcement for transitions.
Fixed elastic and bounce easing.

Even More!

Better default axis appearance.
Better brush interaction.
Built-in asynchronous queue for loading files in parallel.
New low-level ticks API.

The new version differs by 562 commits .

024e8b0 Tweak postpublish.
435793a 4.0.0
a7caf93 Prepare for major release.
675f86d Update API.
e2e91fe Add link to 3.x reference.
3a0ba23 Link to README directly.
a28274c Merge pull request #2869 from mpersing/patch-1
03f37a9 Fixed incorrect links in API.md
3e6a465 Update API.
e6bce5a Update API.
d88af7b Update API.
ed2ae90 Update API.
5cc857a Update API.
8777757 Update CHANGES.
49241b2 Update API.

There are 250 commits in total. See the full diff.

This pull request was created by greenkeeper.io.

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alanshaw / david-www