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Link distance force #47

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Link distance force #47

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52ace27
Add distance to links force
Jun 21, 2017
85f5ee6
Add distance to links force docs
Jun 21, 2017
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1 change: 1 addition & 0 deletions docs/ForceGraph.md
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Expand Up @@ -35,6 +35,7 @@ An object of options to pass into d3-force.
* *boolean* animate
* *number* height
* *number* width
* *function|number* distance (see [d3-force distance docs](https://github.com/d3/d3-force#link_distance))
* *object* strength (see strengths in the [d3-force documentation](https://github.com/d3/d3-force#collide_strength))
* *function|number* strength.charge
* *function|number* strength.collide
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5 changes: 5 additions & 0 deletions src/utils/d3-force.js
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Expand Up @@ -136,6 +136,7 @@ function applyLinkForce(simulation, {
data: { nodes, links },
linkAttrs = [],
nodeAttrs = [],
distance,
}) {
// setup the link force if it isn't already set up
if (!simulation.force('link')) {
Expand All @@ -158,6 +159,9 @@ function applyLinkForce(simulation, {
const newLinksSet = new Set(links.map(linkId));
if (!setsEqual(prevLinksSet, newLinksSet)) {
simulation.shouldRun = true;
if (distance) {
simulation.force('link').distance(distance);
}
simulation.force('link').links(
pick(links, 'source', 'target', 'value', ...linkAttrs)
);
Expand Down Expand Up @@ -245,6 +249,7 @@ export function createSimulation(options) {
* @param {object} options.data
* @param {array} options.data.nodes
* @param {array} options.data.links
* @param {function|number} [options.distance]
* @param {object} [options.strength]
* @param {function|number} [options.strength.charge]
* @param {function|number} [options.strength.collide]
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