javascript 获取 TypeError: .selectAll(...).enter 不是 d3.js 的函数
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Getting TypeError: .selectAll(...).enter is not a function with d3.js
提问by Thierry
I'm getting an error that I really don't understand. I'm trying to use the pie chart describe here https://gist.github.com/enjalot/1203641and add it as an option in my program.
我收到一个我真的不明白的错误。我正在尝试使用此处描述的饼图https://gist.github.com/enjalot/1203641并将其添加为我的程序中的一个选项。
function chart (div) {
var width = 300,
height = 300,
radius = 100,
color = d3.scale.category20c();
div.each(function() {
var div = d3.select(this);
var g = div.select('g');
var vis,arc,pie,arcs;
if (g.empty()) {
vis = div.append("svg:svg")
.data(group.top(18))
.classed('barchart', true)
.attr("width",width + margin.left + margin.right)
.attr('height', height + margin.top + margin.bottom)
.append('svg:g')
.attr('transform', 'translate(' + (margin.left+radius) + ',' + (margin.top+radius) + ')');
arc = d3.svg.arc()
.outerRadius(radius);
pie = d3.layout.pie()
.value(function(d) { return d.value; });
arcs = vis.selectAll("g.slice")
.enter()
.append("svg:g")
.attr("class", "slice");
arcs.append("svg:path")
.attr("fill", function(d, i) { return color(i); } )
.attr("d", arc);
arcs.append("svg:text")
.attr("transform", function(d) {
d.innerRadius = 0;
d.outerRadius = radius;
return "translate(" + arc.centroid(d) + ")";
})
.attr("text-anchor", "middle");
//.text(function(d, i) { return data[i].label; });
}
When I run my script I get this: TypeError: vis.selectAll(...).enter is not a function In my index.html I have d3.js so it should be able to access the resource.
当我运行我的脚本时,我得到这个: TypeError: vis.selectAll(...).enter is not a function 在我的 index.html 我有 d3.js 所以它应该能够访问资源。
I'm at a loss here so if you guys could help me that would be great ! Thanks a lot and have a nice day !
我在这里不知所措,所以如果你们能帮助我,那就太好了!非常感谢,祝你有美好的一天!
回答by gautam1168
After calling the selectAll()
and before calling enter()
you must attach data to the objects that will be created by calling data()
.
For example:
在调用之后selectAll()
和调用之前,enter()
您必须将数据附加到将通过调用创建的对象data()
。例如:
arcs = vis.selectAll("g.slice")
.data(dataset)
.enter()
.append("svg:g")
.attr("class", "slice");
where dataset is an array of the data, for example:
其中 dataset 是一个数据数组,例如:
dataset = [1,2,3,4]