所以我试图让这个 jsfiddle 工作:
http://jsfiddle.net/davetaz/Xc8nT/
它在那里工作得很好。
但是，当我转到我的机器并使用代码时(只是为了在进行自己的更改之前看看它是否有效)，它不起作用，只需获取灰色 div。控制台中没有错误。
我的代码顺序如下:
<script src="https://code.jquery.com/jquery-2.2.2.min.js"></script>
<script src="http://d3js.org/d3.v2.min.js" charset="utf-8"></script>
然后是div
<div id="chart"></div>
然后是脚本。
我尝试过将其包装在 $( document ).ready 中，也尝试在外部文件中使用它。似乎什么都不起作用。我正试图解决这个问题，任何帮助将不胜感激。
最佳答案
您的 HTML 页面格式正确吗？以下对我来说效果很好:
<html>
<head>
<script src="https://code.jquery.com/jquery-2.2.2.min.js"></script>
<script src="http://d3js.org/d3.v2.min.js" charset="utf-8"></script>
<style>
#chart {
width: 500px;
height: 400px;
background: #bbb;
font-size: 10px;
}
text {
pointer-events: none;
}
.grandparent text {
font-weight: bold;
font-size: 16px;
}
rect {
fill: none;
stroke: #fff;
}
rect.parent,
.grandparent rect {
stroke-width: 2px;
}
.grandparent rect {
fill: #fff;
}
.children rect.parent,
.grandparent rect {
cursor: pointer;
}
rect.parent {
pointer-events: all;
}
.children:hover rect.child,
.grandparent:hover rect {
fill: #aaa;
}
</style>
</head>
<body>
<div id="chart"></div>
<script>
var data = {
"name": "projects",
"children": [
{
"name": "Department of Agriculture",
"children": [
{
"name": "Annual Agency Operations.",
"value": 15.297
},
{
"name": "Program Areas will migrate their data over to the agencys virtual servers and shut down their current server.",
"value": 0.179
},
{
"name": "Programs Areas will replace 1/3 of their computers which have an expired warranty.",
"value": 1.46
},
{
"name": "Production Support including Analysis, Software Fixes, System Software Upgrades, Help Desk.",
"value": 1.8205
},
{
"name": "Production Support including Analysis, Software Fixes, System Software Upgrades, Help Desk. (1)",
"value": 1.713
}
]
},
{
"name": "Department of Commerce",
"children": [
{
"name": "Parallel test components of new BP system.",
"value": 1.24
},
{
"name": "Initiate real-time parallel testing of integrated system for producing monthly GDP and personal income estimates.",
"value": 0.413
},
{
"name": "Produce timely, relevant, and accurate economic accounts data in an objective and cost-effective manner.",
"value": 9.696
},
{
"name": "Maintain the integrity of BEA Statistics by completing independent testing of security controls.",
"value": 0.59
},
{
"name": "Produce timely, relevant, and accurate economic accounts data in an objective and cost-effective manner. (1)",
"value": 9.76
}
]
}
]
};
// This example has been adapted from Mike Bostocks Zooming treemap example at http://bost.ocks.org/mike/treemap/. Many thanks to Mike for his excellent work in this area.
var margin = {top: 30, right: 0, bottom: 0, left: 0},
width = 500,
height = 400 - margin.top - margin.bottom,
formatNumber = d3.format(",d"),
transitioning;
var x = d3.scale.linear()
.domain([0, width])
.range([0, width]);
var y = d3.scale.linear()
.domain([0, height])
.range([0, height]);
var treemap = d3.layout.treemap()
.children(function(d, depth) { return depth ? null : d.children; })
.sort(function(a, b) { return a.value - b.value; })
.ratio(height / width * 0.5 * (1 + Math.sqrt(5)))
.round(false);
var svg = d3.select("#chart").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.bottom + margin.top)
.style("margin-left", -margin.left + "px")
.style("margin.right", -margin.right + "px")
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.style("shape-rendering", "crispEdges");
var grandparent = svg.append("g")
.attr("class", "grandparent");
grandparent.append("rect")
.attr("y", -margin.top)
.attr("width", width)
.attr("height", margin.top);
grandparent.append("text")
.attr("x", 6)
.attr("y", 6 - margin.top)
.attr("dy", ".75em");
initialize(data);
accumulate(data);
layout(data);
display(data);
function initialize(root) {
root.x = root.y = 0;
root.dx = width;
root.dy = height;
root.depth = 0;
}
// Aggregate the values for internal nodes. This is normally done by the
// treemap layout, but not here because of our custom implementation.
function accumulate(d) {
return d.children
? d.value = d.children.reduce(function(p, v) { return p + accumulate(v); }, 0)
: d.value;
}
// Compute the treemap layout recursively such that each group of siblings
// uses the same size (1×1) rather than the dimensions of the parent cell.
// This optimizes the layout for the current zoom state. Note that a wrapper
// object is created for the parent node for each group of siblings so that
// the parent’s dimensions are not discarded as we recurse. Since each group
// of sibling was laid out in 1×1, we must rescale to fit using absolute
// coordinates. This lets us use a viewport to zoom.
function layout(d) {
if (d.children) {
treemap.nodes({children: d.children});
d.children.forEach(function(c) {
c.x = d.x + c.x * d.dx;
c.y = d.y + c.y * d.dy;
c.dx *= d.dx;
c.dy *= d.dy;
c.parent = d;
layout(c);
});
}
}
function display(d) {
grandparent
.datum(d.parent)
.on("click", transition)
.select("text")
.text(name(d));
var g1 = svg.insert("g", ".grandparent")
.datum(d)
.attr("class", "depth");
var g = g1.selectAll("g")
.data(d.children)
.enter().append("g");
g.filter(function(d) { return d.children; })
.classed("children", true)
.on("click", transition);
g.selectAll(".child")
.data(function(d) { return d.children || [d]; })
.enter().append("rect")
.attr("class", "child")
.call(rect);
g.append("rect")
.attr("class", "parent")
.call(rect)
.append("title")
.text(function(d) { return formatNumber(d.value); });
g.append("text")
.attr("dy", ".75em")
.text(function(d) { return d.name; })
.call(text);
var color = d3.scale.category20c();
var colors = {};
g.filter(function(d) {
var parent_depth = (d.parent).depth;
var current_node = d;
if (parent_depth != 0) {
current_node = d.parent;
}
if (!current_node.color) {
current_node.color = color(current_node.name);
}
$(this).find(".child").css("fill",current_node.color);
});
function transition(d) {
if (transitioning || !d) return;
transitioning = true;
var g2 = display(d),
t1 = g1.transition().duration(750),
t2 = g2.transition().duration(750);
// Update the domain only after entering new elements.
x.domain([d.x, d.x + d.dx]);
y.domain([d.y, d.y + d.dy]);
// Enable anti-aliasing during the transition.
svg.style("shape-rendering", null);
// Draw child nodes on top of parent nodes.
svg.selectAll(".depth").sort(function(a, b) { return a.depth - b.depth; });
// Fade-in entering text.
g2.selectAll("text").style("fill-opacity", 0);
// Transition to the new view.
t1.selectAll("text").call(text).style("fill-opacity", 0);
t2.selectAll("text").call(text).style("fill-opacity", 1);
t1.selectAll("rect").call(rect);
t2.selectAll("rect").call(rect);
// Remove the old node when the transition is finished.
t1.remove().each("end", function() {
svg.style("shape-rendering", "crispEdges");
transitioning = false;
});
}
return g;
}
function text(text) {
text.attr("x", function(d) { return x(d.x) + 6; })
.attr("y", function(d) { return y(d.y) + 6; });
}
function rect(rect) {
rect.attr("x", function(d) { return x(d.x); })
.attr("y", function(d) { return y(d.y); })
.attr("width", function(d) { return x(d.x + d.dx) - x(d.x); })
.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); })
.attr("id", function(d) { return d.name; });
}
function name(d) {
return d.parent
? name(d.parent) + "." + d.name
: d.name;
}
</script>
</body>
</html>
关于javascript - D3 图表可以在 jsfiddle 上完美运行，但不能在 localhost 上运行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36556725/