Dynamically changing the Javascript D3 layout simulation
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30-10-2019 - |
Question
I am trying to change the simulation details dynamically in the D3 example at https://github.com/mbostock/d3/blob/master/examples/force/force-multi-foci.html. I put in a checkbox and then assign the tick handler dynamically as following (full code at http://pastebin.com/k4P0uzHK) :
$("#chkBox").change(function(){
if ($(this).is(':checked')) {
force.on("tick", forceTick);
} else {
force.on("tick", forceTick2);
}
});
forceTick = function(e) {
// Push different nodes in different directions for clustering.
var ky = 400 * e.alpha;
var kx = 20 * e.alpha;
hLinks.forEach(function(hlink) {
var yB = hlink.source.y, yT = hlink.target.y;
if (yB<(yT+20)) { hlink.source.y += Math.min(ky,yT+20-yB); hlink.target.y -= Math.min(ky,yT+20-yB);}
var xB = hlink.source.x, xT = hlink.target.x;
if (xB<(xT-20)) { hlink.source.x += Math.min(kx,xT-20-xB); hlink.target.x -= Math.min(kx,xT-20-xB);}
if (xB>(xT+20)) { hlink.source.x -= Math.min(kx,xB-xT-20); hlink.target.x += Math.min(kx,xB-xT-20);}
});
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
};
forceTick2 = function(e) {
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
};
But actually the it seems that only the handler given first works. Is there a way to dynamically control the simulation?
No correct solution
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