[英]D3.js Error: <g> attribute transform: Expected number, “translate(NaN,NaN)”
I am trying to build a data visualization with d3 and I am running into the following error in my console.我正在尝试使用 d3 构建数据可视化,但在控制台中遇到以下错误。
Error: <g> attribute transform: Expected number, "translate(NaN,NaN)".
I have taken inspiration from this Plunker and tweaked a few things to make it compatible with my own data.我从这个 Plunker 中获得灵感,并调整了一些东西以使其与我自己的数据兼容。
http://plnkr.co/edit/FiUrNHNMAXd7EBpr5uY5?p=preview&preview
Any help would be immensely appreciated.任何帮助将不胜感激。
My index.html is exactly the same.我的 index.html 完全一样。
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.9/d3.js"></script>
</head>
<body>
<script src="script.js"></script>
</body>
</html>
Here is my script.js这是我的 script.js
var width = 960,
height = 500,
padding = 1.5, // separation between same-color nodes
clusterPadding = 6, // separation between different-color nodes
maxRadius = 100;
minRadius = 1;
d3.csv("modified_data_happy.csv", function(data) {
m = d3.max(data, function(d){return d.city_index});
console.log("m", m);
color = d3.scale.category10()
.domain(d3.range(m));
clusters = new Array(m);
dataset = data.map(function(d) {
var r = parseInt(d.Happy);
// var r = d.Happy;
var dta = {
cluster: d.city_index,//group
name: d.name,//label
radius: r,//radius
x: Math.cos(d.city_index / m * 2 * Math.PI) * 100 + width / 2 + Math.random(),
y: Math.sin(d.city_index / m * 2 * Math.PI) * 100 + height / 2 + Math.random()
};
//add the one off the node inside teh cluster
if (!clusters[d.city_index] || (d.Happy > clusters[d.city_index].radius))
clusters[d.city_index] = dta;
console.log("dta", dta);
return dta;
});
console.log('dataset', dataset);
makeGraph(dataset);
});
function makeGraph(nodes) {
var force = d3.layout.force()
.nodes(nodes)
.size([width, height])
.gravity(.02)
.charge(0)
.on("tick", tick)
.start();
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var node = svg.selectAll("circle")
.data(nodes)
.enter().append("g").call(force.drag);
node.append("circle")
.style("fill", function(d) {
return color(d.cluster);
}).attr("r", function(d) {
return d.Happy
})
node.append("text")
.text(function(d) {
return d.name;
})
.attr("dx", -10)
.attr("dy", ".35em")
.text(function(d) {
return d.name
})
.style("stroke", "none");
function tick(e) {
node.each(cluster(10 * e.alpha * e.alpha))
.each(collide(.5))
// .attr("transform", functon(d) {});
.attr("transform", function(d) {
var k = "translate(" + d.x + "," + d.y + ")";
return k;
})
}
// Move d to be adjacent to the cluster node.
function cluster(alpha) {
return function(d) {
var cluster = clusters[d.cluster];
if (cluster === d) return;
var x = d.x - cluster.x,
y = d.y - cluster.y,
l = Math.sqrt(x * x + y * y),
r = d.Happy + cluster.radius;
if (l != r) {
l = (l - r) / l * alpha;
d.x -= x *= l;
d.y -= y *= l;
cluster.x += x;
cluster.y += y;
}
};
}
// Resolves collisions between d and all other circles.
function collide(alpha) {
var quadtree = d3.geom.quadtree(nodes);
return function(d) {
var r = d.Happy + maxRadius + Math.max(padding, clusterPadding),
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.Happy + quad.point.radius + (d.cluster === quad.point.cluster ? padding :
clusterPadding);
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;
});
};
}
}
My csv file looks like this (I replaced 'group' with 'city_index, and 'radius' with 'Happy').我的 csv 文件看起来像这样(我用“city_index”替换了“group”,用“Happy”替换了“radius”)。 That's it.而已。
index | name | city_index | Happy -----> Header Row
0 | Joe | 3 | 60 -----> Data Row
So that's where I am right now.这就是我现在的位置。 I'm not sure why it's not working as the data structures I replaced the example with are the same.我不确定为什么它不起作用,因为我替换示例的数据结构是相同的。 I tried removing the parser to no avail.我尝试删除解析器无济于事。 I also tried modifying the "transform, translate" properties as well.我还尝试修改“转换、翻译”属性。
Any help would be immensely appreciated.任何帮助将不胜感激。
The problem indicates an SVG element group ( tag ) has NaN for position coordinates.问题表明 SVG 元素组 ( tag ) 对于 position 坐标具有 NaN。 I see a problem maybe here in your code: .attr("dy", ".35em")
Try to get rid of the em value and use raw numbers.我在您的代码中看到了一个问题: .attr("dy", ".35em")
尝试摆脱 em 值并使用原始数字。 I'm not certain it will solve your problem though, if you could post the error in the console and the element it applies to I could help you more.我不确定它是否会解决您的问题,如果您可以在控制台中发布错误并且它适用的元素我可以为您提供更多帮助。
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