collide.radius([radius]) If radius is specified, sets the radius accessor to the specified number or function

simulation.stop() Stops the simulation’s internal timer, if it is running, and returns the simulation. If the timer is already

simulation.alphaTarget([target]) If target is specified, sets the current target

link.iterations([iterations]) If iterations is specified, sets the number of iterations per application to

simulation.nodes([nodes]) If nodes is specified, sets the simulation’s nodes to the specified array of objects

simulation.alphaMin([min]) If min is specified, sets the minimum alpha to the specified number in

manyBody.distanceMin([distance]) If distance is specified, sets the minimum distance between nodes over which

collide.strength([strength]) If strength is specified, sets the force strength to the specified number in the

center.x([x]) If x is specified, sets the x-coordinate of the centering position to the specified

d3.forceX([x]) Creates a new positioning force along the x-axis towards the given position