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GerHobbeltGerHobbelt
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export force.drag instance so user can access it by calling force.drag() with no arguments; the drag events have been namespaced as <event>.force, similar to the other force events: mouseover.force and mouseout.force.
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‎src/layout/force.js‎

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -272,11 +272,13 @@ d3.layout.force = function() {
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// use `node.call(force.drag)` to make nodes draggable
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force.drag = function() {
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if (!arguments.length) return drag;
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if (!drag) drag = d3.behavior.drag()
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.origin(d3_identity)
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.on("dragstart", d3_layout_forceDragstart)
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.on("drag", dragmove)
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.on("dragend", d3_layout_forceDragend);
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.on("dragstart.force", d3_layout_forceDragstart)
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.on("drag.force", dragmove)
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.on("dragend.force", d3_layout_forceDragend);
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this.on("mouseover.force", d3_layout_forceMouseover)
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.on("mouseout.force", d3_layout_forceMouseout)

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