Sha256: 9f498a4bf32152b018d0ca52410cccddf5ed5415440c804328360b1550863f1c
Contents?: true
Size: 1.66 KB
Versions: 5
Compression:
Stored size: 1.66 KB
Contents
(function() {
d3.force_labels = function force_labels() {
var labels = d3.layout.force()
// Update the position of the anchor based on the center of bounding box
function updateAnchor() {
if (!labels.selection) return
labels.selection.each(function(d) {
var bbox = this.getBBox(),
x=bbox.x+bbox.width/2,
y=bbox.y+bbox.height/2
d.anchorPos.x=x
d.anchorPos.y=y
// If a label position does not exist, set it to be the anchor position
if (d.labelPos.x==null) {
d.labelPos.x=x
d.labelPos.y=y
}
})
}
//The anchor position should be updated on each tick
labels.on("tick.labels",updateAnchor)
// This updates all nodes/links - retaining any previous labelPos on updated nodes
labels.update = function(selection) {
labels.selection = selection
var nodes=[],links=[];
selection[0].forEach(function(d) {
if(d && d.__data__) {
var data = d.__data__
if (!d.labelPos) d.labelPos = {fixed:false}
if (!d.anchorPos) d.anchorPos = {fixed:true}
// Place position objects in __data__ to make them available through
// d.labelPos/d.anchorPos for different elements
data.labelPos = d.labelPos
data.anchorPos = d.anchorPos
links.push({target:d.anchorPos,source:d.labelPos})
nodes.push(d.anchorPos)
nodes.push(d.labelPos)
}
})
labels.stop()
.nodes(nodes)
.links(links)
updateAnchor()
labels.start()
}
return labels
}
})()
Version data entries
5 entries across 5 versions & 1 rubygems