Javascript D3重新生成(重新加载/重新初始化)可协作树
我正在使用D3.js绘制一棵树,这棵树基于json文件。 例如,有两个json文件:a.json和b.json。单击a.json时,绘制a.json的树,单击时绘制b.json的树。 a.json文件中有4个节点,b.json文件中有10个节点。 问题是,当我先单击a.json,然后单击b.json时,前4个节点(a.json的节点)将保留(不会消失),而b.json的左6个节点将显示出来。 如果我先单击b.json,然后单击a.json,那么树将只减少6个节点,节点文本将不会更改为a.json的文本Javascript D3重新生成(重新加载/重新初始化)可协作树,javascript,jquery,json,d3.js,Javascript,Jquery,Json,D3.js,我正在使用D3.js绘制一棵树,这棵树基于json文件。 例如,有两个json文件:a.json和b.json。单击a.json时,绘制a.json的树,单击时绘制b.json的树。 a.json文件中有4个节点,b.json文件中有10个节点。 问题是,当我先单击a.json,然后单击b.json时,前4个节点(a.json的节点)将保留(不会消失),而b.json的左6个节点将显示出来。 如果我先单击b.json,然后单击a.json,那么树将只减少6个节点,节点文本将不会更改为a.json
$("body").on("click",".hash_name",function(){
var hs = $(this).attr('id');
var repo_path = $("#repo_path").val();
var file_name = $(this).attr('name');
$("#file_name").val(file_name);
var file_path = repo_path+'/'+file_name;
$.post('../../admini/feature_matrix/git_operation.php',
{
hs:hs,
repo_path:repo_path,
type:5
},
function (output){
$('#source_feature_content').html(JSON.stringify(output));
root = output;
root.x0 = height / 2;
root.y0 = 0;
function collapse(d) {
if (d.children) {
d._children = d.children;
d._children.forEach(collapse);
d.children = null;
}
}
root.children.forEach(collapse);
update(root);
},"json");
});
var margin = {top: 10, right: 20, bottom: 20, left: 80},
width = 1024 - margin.right - margin.left,
height = 900 - margin.top - margin.bottom;
var i = 0,
duration = 300,
root;
var tree = d3.layout.tree()
.size([height, width]);
var diagonal = d3.svg.diagonal()
.projection(function(d) { return [d.y, d.x]; }); // change to vertical
var svg = d3.select("#feature_tree").append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
d3.select(self.frameElement).style("height", "800px");
function update(source) {
// Recompute the new height
var levelWidth = [1];
var childCount = function(level, n) {
if(n.children && n.children.length > 0) {
if(levelWidth.length <= level + 1) levelWidth.push(0);
levelWidth[level+1] += n.children.length;
n.children.forEach(function(d) {
childCount(level + 1, d);
});
}
};
childCount(0, root);
var newHeight = d3.max(levelWidth) * 50; // 50 pixels per line
tree = tree.size([newHeight, width]);
// Compute the new tree layout.
var nodes = tree.nodes(root).reverse(),
links = tree.links(nodes);
// Normalize for fixed-depth.
nodes.forEach(function(d) { d.y = d.depth * 180;});
// Update the nodes…
var node = svg.selectAll("g.node")
.data(nodes, function(d) { return d.id || (d.id = ++i); });
// Enter any new nodes at the parent's previous position.
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; })
.on("click", click);
nodeEnter.append("circle")
.attr("r", 1e-6)
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeEnter.append("text")
.attr("x", function(d) { return d.children || d._children ? -10 : 10; })
.attr("dy", ".35em")
.attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; })
.text(function(d) { return d.name; })
.style("fill-opacity", 1e-6);
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; }); // change to vertical
nodeUpdate.select("circle")
.attr("r", 4.5)
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeUpdate.select("text")
.style("fill-opacity", 1);
// Transition exiting nodes to the parent's new position.
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; }) // change to vertical
.remove();
nodeExit.select("circle")
.attr("r", 1e-6);
nodeExit.select("text")
.style("fill-opacity", 1e-6);
// Update the links…
var link = svg.selectAll("path.link")
.data(links, function(d) { return d.target.id; });
// Enter any new links at the parent's previous position.
link.enter().insert("path", "g")
.attr("class", "link")
.attr("d", function(d) {
var o = {x: source.x0, y: source.y0};
return diagonal({source: o, target: o});
});
// Transition links to their new position.
link.transition()
.duration(duration)
.attr("d", diagonal);
// Transition exiting nodes to the parent's new position.
link.exit().transition()
.duration(duration)
.attr("d", function(d) {
var o = {x: source.x, y: source.y};
return diagonal({source: o, target: o});
})
.remove();
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
}
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
$(“body”)。在(“click”,“.hash_name”,function(){
var hs=$(this.attr('id');
var repo_path=$(“#repo_path”).val();
var file_name=$(this.attr('name');
$(“#文件名”).val(文件名);
var file_path=repo_path+'/'+文件名;
$.post('../../admini/feature_matrix/git_operation.php',
{
协:协,,
回购路径:回购路径,
类型:5
},
功能(输出){
$('#source_feature_content').html(JSON.stringify(output));
根=输出;
root.x0=高度/2;
root.y0=0;
功能崩溃(d){
如果(d.儿童){
d、 _children=d.children;
d、 _儿童。forEach(崩溃);
d、 children=null;
}
}
根。子。forEach(塌陷);
更新(根);
}“json”);
});
var margin={顶部:10,右侧:20,底部:20,左侧:80},
宽度=1024-margin.right-margin.left,
高度=900-边距.顶部-边距.底部;
var i=0,
持续时间=300,
根;
var tree=d3.layout.tree()
.尺寸([高度、宽度]);
var diagonal=d3.svg.diagonal()
.投影(函数(d){返回[d.y,d.x];});//改为垂直
var svg=d3。选择(“特征树”)。追加(“svg”)
.attr(“宽度”,宽度+边距。右侧+边距。左侧)
.attr(“高度”,高度+边距。顶部+边距。底部)
.附加(“g”)
.attr(“转换”、“平移”(+margin.left+)、“+margin.top+”);
d3.选择(self.frameElement).style(“高度”,“800px”);
函数更新(源){
//重新计算新高度
var levelWidth=[1];
var childCount=函数(级别,n){
如果(n.children&&n.children.length>0){
如果(levelWidth.length),看起来您已经有了执行所需操作的代码。您能解释一下它是如何不适合您的吗?修复了,我添加了一个新函数“并添加了d3.select(“svg”).remove()”并移动了边距、I、tree、diagonal、svg和d3。在“Click”事件下选择,它工作正常