Commit 815d38b8 authored by Mike Bostock's avatar Mike Bostock

Update CHANGES.

parent 6f63be68
......@@ -366,7 +366,7 @@ The force layout d3.layout.force has been renamed to d3.forceSimulation. The for
Rather than hard-coding a set of built-in forces, the force simulation is now extensible: you specify which forces you want! The approach affords greater flexibility through composition. The new forces are more flexible, too: force parameters can typically be configured per-node or per-link. There are separate positioning forces for [*x*](https://github.com/d3/d3-force#forceX) and [*y*](https://github.com/d3/d3-force#forceY) that replace *force*.gravity. The new [link force](https://github.com/d3/d3-force#forceLink) replaces *force*.linkStrength and employs better default heuristics to improve stability. The new [many-body force](https://github.com/d3/d3-force#forceManyBody) replaces *force*.charge and supports a new [minimum-distance parameter](https://github.com/d3/d3-force#manyBody_distanceMin) and performance improvements thanks to 4.0’s [new quadtrees](#quadtrees-d3-quadtree). There are also brand-new forces for [centering nodes](https://github.com/d3/d3-force#forceCenter) and [collision resolution](https://github.com/d3/d3-force#forceCollision).
The new forces and the initialization behavior of the simulation have been carefully crafted to avoid nondeterminism. Rather than initializing nodes randomly, if the nodes do not have preset positions, they are placed in a phyllotaxis pattern:
The new forces and simulation have been carefully crafted to avoid nondeterminism. Rather than initializing nodes randomly, if the nodes do not have preset positions, they are placed in a phyllotaxis pattern:
<img alt="Phyllotaxis" src="https://raw.githubusercontent.com/d3/d3-force/master/img/phyllotaxis.png" width="420" height="219">
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