我在这里使用了D3示例强制布局数据:https://bl.ocks.org/mbostock/4062045
并将其转移到此示例:https://bl.ocks.org/mbostock/1804919
结果JSFiddle:https://jsfiddle.net/thatOneGuy/q2shr6ne/6/
这很好用,但我需要这个才能使用数千个节点。我用大约3000测试它,需要几分钟才能解决。示例:https://jsfiddle.net/thatOneGuy/q2shr6ne/7/
我已经找到了这个例子以及更多:
How to speed up the force layout animation in d3.js
但我需要有他们的最终位置,因为我不想在开始时进行任何转换。这可能吗?
他们如何定位的代码:
function tick(e) {
circle
.each(gravity(0.2*e.alpha))
.each(collide(.5))
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
}
// Move nodes toward cluster focus.
function gravity(alpha) {
return function(d) {
d.y += (d.cy - d.y) * alpha;
d.x += (d.cx - d.x) * alpha;
};
}
// Resolve collisions between nodes.
function collide(alpha) {
var quadtree = d3.geom.quadtree(data.nodes);
return function(d) {
// console.log(d.radius)
var r = d.radius + maxRadius + padding,
nx1 = d.x - r,
nx2 = d.x + r,
ny1 = d.y - r,
ny2 = d.y + r;
quadtree.visit(function(quad, x1, y1, x2, y2) {
if (quad.point && (quad.point !== d)) {
var x = d.x - quad.point.x,
y = d.y - quad.point.y,
l = Math.sqrt(x * x + y * y),
r = d.radius + quad.point.radius + (d.color !== quad.point.color) * padding;
if (l < r) {
l = (l - r) / l * alpha;
d.x -= x *= l;
d.y -= y *= l;
quad.point.x += x;
quad.point.y += y;
}
}
return x1 > nx2 || x2 < nx1 || y1 > ny2 || y2 < ny1;
});
};
}
我找到了这个例子:http://bl.ocks.org/mbostock/1667139
但实施起来很困难......
答案 0 :(得分:2)
你的例子适合我:
setTimeout(function() {
force.start();
for (var i = n * n; i > 0; --i) force.tick();
force.stop();
}, 10);
并在start()
定义
force
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