我已经处理了基于层次结构的JSON文件（父子关系）。在这一点上，我必须一步一步地走下去。但是，在最后一个级别（最后一个孩子）中，该值可能为3000-5000。而且，它当然不适合在树状图窗口中。因此，我想通过上下滚动来将其显示为列表视图（html ul li）。
类似这样的东西：http://www.billdwhite.com/wordpress/wp-content/js/treemap_headers_03.html
但是，它将继续下去，直到遇到大量数据（大约3000-5000）为止。
以下是我的全部代码：
var obj = document.getElementById('chart');
var divWidth = obj.offsetWidth;
// console.log(obj.offsetWidth);
var margin = {top: 30, right: 0, bottom: 20, left: 0},
width = divWidth - 25,
height = 540 - margin.top - margin.bottom,
transitioning;
//console.log(width);
// sets x and y scale to determine size of visible boxes
var x = d3.scale.linear()
.domain([0, width])
.range([0, width]);
//x(d.x + d.dx) - x(d.x)
var y = d3.scale.linear()
.domain([0, height])
.range([0, height]);
var color = d3.scale.category10();
// introduce color scale here
var treemap = d3.layout.treemap()
.children(function(d, depth) { return depth ? null : d._children; })
.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");
// functions
function initialize(root) {
root.x = root.y = 0;
root.dx = width;
root.dy = height;
root.depth = 0;
}
function accumulate(d) {
// svg.on("click", function() {
// console.log("d._children -> " + d._children);
// console.log("d.children -> " + d.children);
// });
// console.log("d._children -> " + d._children);
// console.log("d.children -> " + d.children);
//
// if(d._children = d.children)
// {
// d.children.reduce(function(p, v) { console.log(p); return p + accumulate(v); }, 0)
//// console.log(d.children.reduce(function(p, v) { return p + accumulate(v); }, 0));
// } else {
// console.log(d.value);
// }
return (d._children = d.children)
? d.value = d.children.reduce(function(p, v) { return p + accumulate(v); }, 0)
: d.value;
}
function layout(d) {
if (d._children) {
// treemap nodes comes from the treemap set of functions as part of d3
// console.log(treemap.nodes({_children: d._children}));
treemap.nodes({_children: d._children});
d._children.forEach(function(c) {
// if(c._children != undefined) {
c.x = d.x + c.x * d.dx;
// console.log(c);
// console.log(d.x);
// console.log(c.x);
// console.log(d.dx);
c.y = d.y + c.y * d.dy;
c.dx *= d.dx;
c.dy *= d.dy;
c.parent = d;
// recursion
layout(c);
// } else {
// var ul = document.createElement('ul');
// var li = document.createElement('li');
//// document.getElementsByClassName('foreignobj').appendChild(ul).appendChild(li);
//
// console.log(c.name);
// li.innerHTML=li.innerHTML + c.name;
//// console.log('LIST');
// }
});
}
}
d3.json("new-data-old.json", function(root) {
//console.log(root)
initialize(root);
accumulate(root);
layout(root);
display(root);
function display(d) {
grandparent
.datum(d.parent)
.on("click", transition)
.select("text")
.text(name(d))
// color header based on grandparent's rectcolor
grandparent
.datum(d.parent)
.select("rect")
.attr("fill", function(){
// return color(d['rectcolor'])
return color(Math.random())
})
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);
// console.log();
// if(d._children.value == null){
//// console.log(d._children)
// return d._children || [d];
// } else {
//// console.log(d._children)
// g.selectAll(".child")
// .data(function(d) { return d._children || [d]; })
// .enter().append("div")
// .attr("class", "child")
// .html(function (d) {
// console.log(d);
// })
// ;
//// .call(rect);
// }
g.selectAll(".child")
.data(function(d) {
if(typeof d._children == "undefined") {
// console.log(d.name);
// g.remove();
// d3.select("#chart svg g")
//// .data(function(d) { return d; })
// .append("xhtml:div")
// .attr("class", "mydiv")
// .html(d.name);
return d;
} else {
// console.log('BBBBBBBB');
// d3.select("#chart")
// .append("xhtml:div")
// .attr("class", "mydiv")
// .removeAll();
return d._children || [d];
}
})
.enter().append("rect")
.attr("class", "child")
.call(rect);
g.append("rect")
.attr("class", "parent")
.call(rect)
.append("title");
/* Adding a foreign object instead of a text object, allows for text wrapping */
g.append("foreignObject")
.call(rect)
.attr("class","foreignobj")
.append("xhtml:div")
.attr("dy", ".75em")
.html(function (d) {
// console.log(d._children);
return d.name;
})
.attr("class","textdiv");
// if(d._children == undefined) {
// g.append("foreignObject")
// .call(rect)
// .attr("class","foreignobj")
// .append("xhtml:div")
// .attr("dy", ".75em")
// .html(function (d) {
//// console.log(d._children);
// return d.name;
// })
// .attr("class","textdiv");
// }
function transition(d) {
// console.log(d);
if (transitioning || !d) return;
transitioning = true;
var g2 = display(d),
t1 = g1.transition().duration(650),
t2 = g2.transition().duration(650);
console.log(g1);
console.log(g2[0].parentNode.__data__._children[0].lastchild);
// 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);
// g2.selectAll("foreignObject div").style("display", "none");
// Transition to the new view.
t1.selectAll("text").call(text).style("fill-opacity", 0);
t2.selectAll("text").call(text).style("fill-opacity", 1);
// console.log(t1.selectAll("rect"));
// if(t1.selectAll("rect")._children != undefined) {
// console.log('OKOKOKO');
// }
t1.selectAll("rect").call(rect);
t2.selectAll("rect").call(rect);
// t1.append("xhtml:div");
/* Foreign object */
t1.selectAll(".textdiv").style("display", "none"); /* added */
t1.selectAll(".foreignobj").call(foreign); /* added */
t2.selectAll(".textdiv").style("display", "block"); /* added */
t2.selectAll(".foreignobj").call(foreign); /* added */
// Remove the old node when the transition is finished.
t1.remove().each("end", function() {
// console.log('END');
// 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) { console.log(((x(d.x + d.dx) - x(d.x))/15)*d.size); return (x(d.x + d.dx) - x(d.x)); })
// .attr("width", function(d) { return x(d.x + 200); })
.attr("width", function(d) { return x(d.x + d.dx) - x(d.x); })
// .attr("height", function(d) { return y(d.y + 150); })
.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); })
.attr("fill", function(){
// return color(d['rectcolor'])
return color(Math.random())
});
}
function divList(divList) {
divList.append("xhtml:div");
}
function foreign(foreign){ /* added */
foreign.attr("x", function(d) { return x(d.x); })
.attr("y", function(d) { return y(d.y); })
// .attr("width", function(d) { return x(d.x + 200) - x(d.x); })
.attr("width", function(d) { return x(d.x + d.dx) - x(d.x); })
// .attr("height", function(d) { return y(d.y + 150) - y(d.y); });
.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); });
}
function name(d) {
return d.parent
? name(d.parent) + " - " + d.name
: d.name;
}
function nameSave(d) {
return d.parent
? name(d.parent) + " - " + d.name
: d.name;
}
});
任何帮助将不胜感激。预先感谢。