我正在创建一个树并尝试为边添加标签。在同一个树中，可以使用单击父节点时出现的加号按钮动态添加节点。当我添加一个新孩子时会出现问题。
（抱歉长代码，无法做出更小的工作示例 - 为了便于分析而对代码进行了评论）
问题
当我检查DOM时，我可以看到text元素与text-link个元素已被多次添加到g元素中，类edge-container。 （请检查代码段）。呈现的标记是这样的。 （仅显示相关部分）
<g class="edge-container">
<path class="link" id="rightlink1-2" d="M0,230C90,230 90,76.66666666666667 180,76.66666666666667"></path>
<text class="text-link" x="135" y="230" text-anchor="start" style="font-size: 14px;">test-label</text>
</g>
<g class="edge-container">
<path class="link" id="rightlink1-3" d="M0,230C90,230 90,230 180,230"></path>
<text class="text-link" x="135" y="172.5" text-anchor="start" style="font-size: 14px;">test-label</text>
<text class="text-link" x="135" y="287.5" text-anchor="start" style="font-size: 14px;">test-label</text>
</g>
<g class="edge-container">
<path class="link" id="rightlink1-4" d="M0,230C90,230 90,383.33333333333337 180,383.33333333333337"></path>
<text class="text-link" x="135" y="153.33333333333334" text-anchor="start" style="font-size: 14px;">test-label</text>
<text class="text-link" x="135" y="230" text-anchor="start" style="font-size: 14px;">test-label</text>
<text class="text-link" x="135" y="306.6666666666667" text-anchor="start" style="font-size: 14px;">test-label</text>
</g>
我做错了什么？
对于每个新节点的添加，所有以前的标签也会附加到新创建的edge-container。
应该对代码进行哪些更改，每个边缘只会在父text-link元素中添加相应的g。
操作
单击节点以显示添加按钮，单击添加按钮以添加子节点。 （请以全屏方式查看代码段以便于使用）
var treeData = [{
"name": "Device",
"parent": "null"
}
];
var treeData2 = [{
"name": "Device",
"parent": "null"
}
];
$(document).ready(function($) {
var margin = {
top: 20,
right: 120,
bottom: 20,
left: 120
},
width = 2260 - margin.right - margin.left,
height = 500 - margin.top - margin.bottom;
var svg = d3.select('.doubletree-container').append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom);
$.fn.makeDoubleTree = function() {
this.makeRightTree();
this.makeLeftTree();
};
}(jQuery));
$.fn.makeRightTree = function() {
// ************** Generate the tree diagram *****************
var margin = {
top: 20,
right: 120,
bottom: 20,
left: 120
},
width = 1260 - margin.right - margin.left,
height = 500 - margin.top - margin.bottom;
var i = 0,
duration = 750,
root;
var tree = d3.layout.tree()
.size([height, width]);
var diagonal = d3.svg.diagonal()
.projection(function(d) {
return [d.y, d.x];
});
var svg = d3.select("svg").append("g")
.attr("class", "right-tree-container")
.attr("transform", "translate(600,0)");
svg.append("g").attr("id", "right-edges")
root = treeData[0];
oldrx = root.x0 = height / 2;
oldry = root.y0 = 0;
update(root);
function update(source) {
// 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", function(d) {
console.log(d);
if (d.parent == "null") {
if (d.children)
{
return "node rightparent collapsed" //since its root its parent is null
} else {
return "node rightparent"
}
} else {
if (d.children) {
return "node rightchild collapsed" //all nodes with parent will have this class
} else {
return "node rightchild" //all nodes with parent will have this class
}
}
})
.attr("transform", function(d) {
return "translate(" + source.y0 + "," + source.x0 + ")";
})
.on("click", click);
nodeEnter.append("rect")
.attr("id", function(d) {
return "rightnode" + d.id;
})
.attr("x", "-10")
.attr("y", "-15")
.attr("height", 30)
.attr("width", 100)
.attr("rx", 15)
.attr("ry", 15)
.style("fill", "#f1f1f1");
nodeEnter.append("image")
.attr("xlink:href", "img.png")
.attr("x", "0")
.attr("y", "-10")
.attr("width", 16)
.attr("height", 16);
nodeEnter.append("text")
.attr("x", function(d) {
return d.children || d._children ? -13 : 13;
})
.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);
var addRightChild = nodeEnter.append("g").attr("class", "addRightChild");
addRightChild.append("rect")
.attr("x", "90")
.attr("y", "-10")
.attr("height", 20)
.attr("width", 20)
.attr("rx", 10)
.attr("ry", 10)
.style("stroke", "#444")
.style("stroke-width", "2")
.style("fill", "#ccc");
addRightChild.append("line")
.attr("x1", 95)
.attr("y1", 1)
.attr("x2", 105)
.attr("y2", 1)
.attr("stroke", "#444")
.style("stroke-width", "2");
addRightChild.append("line")
.attr("x1", 100)
.attr("y1", -4)
.attr("x2", 100)
.attr("y2", 6)
.attr("stroke", "#444")
.style("stroke-width", "2");
// adding the right chevron
var rightChevron = nodeEnter.append("g").attr("class", "right-chevron");
rightChevron.append("line")
.attr("x1", 75)
.attr("y1", -5)
.attr("x2", 80)
.attr("y2", 0)
.attr("stroke", "#444")
.style("stroke-width", "2");
rightChevron.append("line")
.attr("x1", 80)
.attr("y1", 0)
.attr("x2", 75)
.attr("y2", 5)
.attr("stroke", "#444")
.style("stroke-width", "2");
rightChevron.on("click", function(d) {
});
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) {
if (d.parent == "null") {
d.y = oldry;
d.x = oldrx;
}
return "translate(" + d.y + "," + d.x + ")";
});
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 + ")";
})
.remove();
nodeExit.select("text")
.style("fill-opacity", 1e-6);
// Update the links…
/***************************************
start of relevant code , where group edge-container edge is added
************************/
var edge = d3.select("#right-edges")
.append("g")
.attr("class", "edge-container")
.data(links);
var link = edge.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", "edge-container")
.attr("class", "link")
.attr("id", function(d) {
return ("rightlink" + d.source.id + "-" + d.target.id)
})
.attr("d", function(d) {
var o = {
x: source.x0,
y: source.y0
};
return diagonal({
source: o,
target: o
});
}).on("click", removelink)
.on("mouseover", showRemoveButton)
.on("mouseout", hideRemoveButton);
function showRemoveButton() {
console.log("hover");
}
function hideRemoveButton() {
console.log("hover-out");
}
var text = edge.selectAll("text.text-link")
.data(links, function(d) {
return d.target.id + d.source.id;
});
text.enter().insert("text", "edge-container")
.attr("class", "text-link")
.attr("x", function(d) {
var x = (d.source.y + d.target.y) / 2
return parseInt(x + 45);
})
.attr("y", function(d) {
var y = (d.source.x + d.target.x) / 2
return y;
})
.text("test-label")
.attr("text-anchor", "start")
.style("font-size", "14px");
var link = edge.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", "edge-container")
.attr("class", "link")
.attr("id", function(d) {
return ("rightlink" + d.source.id + "-" + d.target.id)
})
.attr("d", function(d) {
var o = {
x: source.x0,
y: source.y0
};
return diagonal({
source: o,
target: o
});
}).on("click", removelink)
.on("mouseover", showRemoveButton)
.on("mouseout", hideRemoveButton);
function showRemoveButton() {
console.log("hover");
}
function hideRemoveButton() {
console.log("hover-out");
}
/***** end of relevant code *******/
function removelink(d) {
var confirmDelete = confirm("Are you sure you want to delete?");
if (confirmDelete) {
//this is the links target node which you want to remove
var target = d.target;
//make new set of children
var children = [];
//iterate through the children
target.parent.children.forEach(function(child) {
if (child.id != target.id) {
//add to the child list if target id is not same
//so that the node target is removed.
children.push(child);
}
});
//set the target parent with new set of children sans the one which is removed
target.parent.children = children;
//redraw the parent since one of its children is removed
update(d.target.parent)
}
}
var link = svg.selectAll("path.link")
.data(links, function(d) {
return d.target.id;
});
// 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();
// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
addRightChild.on("click", function(d) {
event.stopPropagation();
$("#child-info").show();
$("#child-text").val("");
$("#btn-add-child").off('click');
$("#btn-add-child").click(function() {
var childname = $("#child-text").val();
if (typeof d._children === 'undefined' || d._children === null) {
if (typeof d.children === 'undefined') {
var newChild = [{
"name": childname,
"parent": "Son Of A",
}];
var newnodes = tree.nodes(newChild);
d.children = newnodes[0];
// console.log(d.children);
update(d);
} else {
var newChild = {
"name": childname,
"parent": "Son Of A",
};
// console.log(d.children);
d.children.push(newChild);
// console.log(d.children);
update(d);
}
} else {
var newChild = {
"name": childname,
"parent": "Son Of A",
};
d.children = d._children;
d.children.push(newChild);
// console.log(d.children);
update(d);
}
$("#child-info").hide();
});
});;
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
$(".addLeftChild, .addRightChild").hide();
if (d.id === 1) {
$(".rightparent").children(".addRightChild").show();
$(this).children(".addRightChild").show();
} else {
$(this).children(".addRightChild").show();
}
d3.selectAll("rect").style("fill", "#f1f1f1"); //reset all node colors
d3.selectAll("path").style("stroke", "#85e0e0"); //reset the color for all links
while (d.parent) {
d3.select("#leftnode1").style("fill", "#F7CA18");
d3.selectAll("#rightnode" + d.id).style("fill", "#F7CA18"); //color the node
if (d.parent != "null")
d3.selectAll("#rightlink" + d.parent.id + "-" + d.id).style("stroke", "#F7CA18"); //color the path
d = d.parent;
}
}
}
$.fn.makeLeftTree = function() {
// ************** Generate the tree diagram *****************
var margin = {
top: 20,
right: 120,
bottom: 20,
left: 120
},
width = 1260 - margin.right - margin.left,
height = 500 - margin.top - margin.bottom;
var i = 0,
duration = 750,
root;
var tree = d3.layout.tree()
.size([height, width]);
var diagonal = d3.svg.diagonal()
.projection(function(d) {
return [d.y, d.x];
});
var svg = d3.select("svg").append("g")
.attr("class", "left-tree-container")
.attr("transform", "translate(-421,0)");
svg.append("g").attr("id", "left-edges")
root = treeData2[0];
oldlx = root.x0 = height / 2;
oldly = root.y0 = width;
update(root);
function update(source) {
// 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 = width - (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", function(d) {
if (d.parent == "null") {
return "node leftparent" //since its root its parent is null
} else
return "node leftchild" //all nodes with parent will have this class
})
.attr("transform", function(d) {
return "translate(" + source.y0 + "," + source.x0 + ")";
})
.on("click", click);
nodeEnter.append("rect")
.attr("x", "-10")
.attr("id", function(d) {
return "leftnode" + d.id;
})
.attr("y", "-15")
.attr("height", 30)
.attr("width", 100)
.attr("rx", 15)
.attr("ry", 15)
.style("fill", "#f1f1f1");
nodeEnter.append("image")
.attr("xlink:href", "img.png")
.attr("x", "60")
.attr("y", "-10")
.attr("width", 16)
.attr("height", 16);
nodeEnter.append("text")
.attr("x", function(d) {
return d.children || d._children ? -13 : 13;
})
.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);
var addLeftChild = nodeEnter.append("g").attr("class", "addLeftChild");
addLeftChild.append("rect")
.attr("x", "-30")
.attr("y", "-10")
.attr("height", 20)
.attr("width", 20)
.attr("rx", 10)
.attr("ry", 10)
.style("stroke", "#444")
.style("stroke-width", "2")
.style("fill", "#ccc");
addLeftChild.append("line")
.attr("x1", -25)
.attr("y1", 1)
.attr("x2", -15)
.attr("y2", 1)
.attr("stroke", "#444")
.style("stroke-width", "2");
addLeftChild.append("line")
.attr("x1", -20)
.attr("y1", -4)
.attr("x2", -20)
.attr("y2", 6)
.attr("stroke", "#444")
.style("stroke-width", "2");
var leftChevron = nodeEnter.append("g").attr("class", "left-chevron");
leftChevron.append("line")
.attr("x1", 5)
.attr("y1", -5)
.attr("x2", 0)
.attr("y2", 0)
.attr("stroke", "#444")
.style("stroke-width", "2");
leftChevron.append("line")
.attr("x1", 0)
.attr("y1", 0)
.attr("x2", 5)
.attr("y2", 5)
.attr("stroke", "#444")
.style("stroke-width", "2");
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) {
if (d.parent == "null") {
d.y = oldly;
d.x = oldlx;
}
return "translate(" + d.y + "," + d.x + ")";
});
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 + ")";
})
.remove();
// nodeExit.select("circle")
// .attr("r", 1e-6);
nodeExit.select("text")
.style("fill-opacity", 1e-6);
var edge = d3.select("#left-edges")
.append("g")
.attr("class", "edge-container")
.data(links);
d3.selectAll(".left-tree-container .text-link").remove();
var text = edge.selectAll(".text-link")
.data(links, function(d) {
return d.target.id + d.source.id;
});
text.enter().append("text")
.attr("class", "text-link")
.attr("x", function(d) {
var x = (d.source.y + d.target.y) / 2
return parseInt(x + 45);
})
.attr("y", function(d) {
var y = (d.source.x + d.target.x) / 2
return y;
})
.text("test-label")
.attr("text-anchor", "middle")
.style("font-size", "14px");
var link = edge.selectAll("path.link")
.data(links, function(d) {
return d.target.id;
});
// Update the links…
// Enter any new links at the parent's previous position.
link.enter().insert("path", "edge-container")
.attr("class", "link")
.attr("id", function(d) {
return ("leftlink" + d.source.id + "-" + d.target.id)
})
.attr("d", function(d) {
var o = {
x: source.x0,
y: source.y0
};
return diagonal({
source: o,
target: o
});
}).on("click", removelink);
function removelink(d) {
var confirmDelete = confirm("Are you sure you want to delete?");
if (confirmDelete) {
//this is the links target node which you want to remove
var target = d.target;
//make new set of children
var children = [];
//iterate through the children
target.parent.children.forEach(function(child) {
if (child.id != target.id) {
//add to teh child list if target id is not same
//so that the node target is removed.
children.push(child);
}
});
//set the target parent with new set of children sans the one which is removed
target.parent.children = children;
//redraw the parent since one of its children is removed
update(d.target.parent)
}
}
var link = svg.selectAll("path.link")
.data(links, function(d) {
return d.target.id;
});
// 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();
// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
addLeftChild.on("click", function(d) {
event.stopPropagation();
$("#child-info").show();
$("#child-text").val("");
$("#btn-add-child").off('click');
$("#btn-add-child").click(function() {
var childname = $("#child-text").val();
if (typeof d._children === 'undefined' || d._children === null) {
if (typeof d.children === 'undefined') {
var newChild = [{
"name": childname,
"parent": "Son Of A",
}];
// console.log(tree.nodes(newChild[0]));
var newnodes = tree.nodes(newChild);
d.children = newnodes[0];
// console.log(d.children);
update(d);
} else {
var newChild = {
"name": childname,
"parent": "Son Of A",
};
// console.log(d.children);
d.children.push(newChild);
// console.log(d.children);
update(d);
}
} else {
var newChild = {
"name": childname,
"parent": "Son Of A",
};
console.log("collapsed case");
d.children = d._children;
d.children.push(newChild);
// console.log(d.children);
update(d);
}
$("#child-info").hide();
});
});
}
// Toggle children on click.
function click(d) {
if (d.id !== 1) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
$(".addLeftChild, .addRightChild").hide();
if (d.id === 1) {
$(".rightparent").children(".addRightChild").show();
$(this).children(".addLeftChild").show();
} else {
$(this).children(".addLeftChild").show();
}
d3.selectAll("rect").style("fill", "#f1f1f1"); //reset all node colors
d3.selectAll("path").style("stroke", "#85e0e0"); //reset the color for all links
while (d.parent) {
d3.selectAll("#leftnode" + d.id).style("fill", "#F7CA18"); //color the node
if (d.parent != "null")
d3.selectAll("#leftlink" + d.parent.id + "-" + d.id).style("stroke", "F7CA18"); //color the path
d = d.parent;
}
}
}body {
font-family: 'Roboto', sans-serif;
margin: 0;
padding: 0;
}
#child-info {
width: 100px;
height: 50px;
height: auto;
position: fixed;
padding: 10px;
display: none;
left: 40%;
z-index: 100;
}
#btn-add-child {} .control-bar {
min-height: 50px;
padding: 10px 0px;
background: #f1f1f1;
border-bottom: 1px solid #ccc;
box-shadow: 0 3px 2px -2px rgba(200, 200, 200, 0.2);
color: #666;
position: relative;
}
.asset-title {
padding: 15px;
float: left;
}
.control-buttons {
float: right;
padding: 10px;
}
.control-buttons button {
border: none;
border-radius: 0px;
background: #fff;
color: #666;
height: 30px;
width: 30px;
}
.image-viewer {
position: fixed;
height: 100px;
width: 150px;
left: 50px;
bottom: 50px;
border: 1px solid #ccc;
z-index: 100;
background: white;
}
.node {
cursor: pointer;
}
.node text {
font: 12px sans-serif;
}
.link {
fill: none;
stroke: #85e0e0;
stroke-width: 2px;
}
.rightparent>rect {
display: none;
}
.leftparent>rect {
fill: #f1f1f1;
stroke: #ccc;
stroke-width: 2;
}
.leftparent .left-chevron {
display: none;
}
.leftparent image {
display: none;
}
.addLeftChild,
.addRightChild {
display: none;
}
.left-chevron,
.right-chevron {
display: none;
}
.collapsed .left-chevron,
.collapsed .right-chevron {
display: block;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<div id="child-info" style="display:none">
<input type="text" id="child-text" placeholder="child name">
<button id="btn-add-child">add</button>
</div>
<div id="panzoom" class="doubletree-container">
</div>
<script>
$(document).ready(function() {
$(".doubletree-container").makeDoubleTree();
});
</script>
答案 0 :(得分：0)
您忘记删除旧文本链接，就像您在左侧所做的那样，然后添加此行，您应该添加：
d3.selectAll(".right-tree-container .text-link").remove();
在 makeRightTree 函数中，如下所示：
$.fn.makeRightTree = function() {
// ************** Generate the tree diagram *****************
var margin = {
top: 20,
right: 120,
bottom: 20,
left: 120
},
width = 1260 - margin.right - margin.left,
height = 500 - margin.top - margin.bottom;
var i = 0,
duration = 750,
root;
var tree = d3.layout.tree()
.size([height, width]);
var diagonal = d3.svg.diagonal()
.projection(function(d) {
return [d.y, d.x];
});
var svg = d3.select("svg").append("g")
.attr("class", "right-tree-container")
.attr("transform", "translate(600,0)");
svg.append("g").attr("id", "right-edges")
root = treeData[0];
oldrx = root.x0 = height / 2;
oldry = root.y0 = 0;
update(root);
function update(source) {
// 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", function(d) {
console.log(d);
if (d.parent == "null") {
if (d.children)
{
return "node rightparent collapsed" //since its root its parent is null
} else {
return "node rightparent"
}
} else {
if (d.children) {
return "node rightchild collapsed" //all nodes with parent will have this class
} else {
return "node rightchild" //all nodes with parent will have this class
}
}
})
.attr("transform", function(d) {
return "translate(" + source.y0 + "," + source.x0 + ")";
})
.on("click", click);
nodeEnter.append("rect")
.attr("id", function(d) {
return "rightnode" + d.id;
})
.attr("x", "-10")
.attr("y", "-15")
.attr("height", 30)
.attr("width", 100)
.attr("rx", 15)
.attr("ry", 15)
.style("fill", "#f1f1f1");
nodeEnter.append("image")
.attr("xlink:href", "img.png")
.attr("x", "0")
.attr("y", "-10")
.attr("width", 16)
.attr("height", 16);
nodeEnter.append("text")
.attr("x", function(d) {
return d.children || d._children ? -13 : 13;
})
.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);
var addRightChild = nodeEnter.append("g").attr("class", "addRightChild");
addRightChild.append("rect")
.attr("x", "90")
.attr("y", "-10")
.attr("height", 20)
.attr("width", 20)
.attr("rx", 10)
.attr("ry", 10)
.style("stroke", "#444")
.style("stroke-width", "2")
.style("fill", "#ccc");
addRightChild.append("line")
.attr("x1", 95)
.attr("y1", 1)
.attr("x2", 105)
.attr("y2", 1)
.attr("stroke", "#444")
.style("stroke-width", "2");
addRightChild.append("line")
.attr("x1", 100)
.attr("y1", -4)
.attr("x2", 100)
.attr("y2", 6)
.attr("stroke", "#444")
.style("stroke-width", "2");
// adding the right chevron
var rightChevron = nodeEnter.append("g").attr("class", "right-chevron");
rightChevron.append("line")
.attr("x1", 75)
.attr("y1", -5)
.attr("x2", 80)
.attr("y2", 0)
.attr("stroke", "#444")
.style("stroke-width", "2");
rightChevron.append("line")
.attr("x1", 80)
.attr("y1", 0)
.attr("x2", 75)
.attr("y2", 5)
.attr("stroke", "#444")
.style("stroke-width", "2");
rightChevron.on("click", function(d) {
});
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) {
if (d.parent == "null") {
d.y = oldry;
d.x = oldrx;
}
return "translate(" + d.y + "," + d.x + ")";
});
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 + ")";
})
.remove();
nodeExit.select("text")
.style("fill-opacity", 1e-6);
var edge = d3.select("#right-edges")
.append("g")
.attr("class", "edge-container")
.data(links);
**d3.selectAll(".right-tree-container .text-link").remove();**
var text = edge.selectAll("text.text-link")
.data(links, function(d) {
return d.target.id + d.source.id;
});
text.enter().insert("text", "edge-container")
.attr("class", "text-link")
.attr("x", function(d) {
var x = (d.source.y + d.target.y) / 2
return parseInt(x + 45);
})
.attr("y", function(d) {
var y = (d.source.x + d.target.x) / 2
return y;
})
.text("test-label")
.attr("text-anchor", "start")
.style("font-size", "14px");
var link = edge.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", "edge-container")
.attr("class", "link")
.attr("id", function(d) {
return ("rightlink" + d.source.id + "-" + d.target.id)
})
.attr("d", function(d) {
var o = {
x: source.x0,
y: source.y0
};
return diagonal({
source: o,
target: o
});
}).on("click", removelink)
.on("mouseover", showRemoveButton)
.on("mouseout", hideRemoveButton);
function showRemoveButton() {
console.log("hover");
}
function hideRemoveButton() {
console.log("hover-out");
}
/***** end of relevant code *******/
function removelink(d) {
var confirmDelete = confirm("Are you sure you want to delete?");
if (confirmDelete) {
//this is the links target node which you want to remove
var target = d.target;
//make new set of children
var children = [];
//iterate through the children
target.parent.children.forEach(function(child) {
if (child.id != target.id) {
//add to the child list if target id is not same
//so that the node target is removed.
children.push(child);
}
});
//set the target parent with new set of children sans the one which is removed
target.parent.children = children;
//redraw the parent since one of its children is removed
update(d.target.parent)
}
}
var link = svg.selectAll("path.link")
.data(links, function(d) {
return d.target.id;
});
// 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();
// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
addRightChild.on("click", function(d) {
event.stopPropagation();
$("#child-info").show();
$("#child-text").val("");
$("#btn-add-child").off('click');
$("#btn-add-child").click(function() {
var childname = $("#child-text").val();
if (typeof d._children === 'undefined' || d._children === null) {
if (typeof d.children === 'undefined') {
var newChild = [{
"name": childname,
"parent": "Son Of A",
}];
var newnodes = tree.nodes(newChild);
d.children = newnodes[0];
// console.log(d.children);
update(d);
} else {
var newChild = {
"name": childname,
"parent": "Son Of A",
};
// console.log(d.children);
d.children.push(newChild);
// console.log(d.children);
update(d);
}
} else {
var newChild = {
"name": childname,
"parent": "Son Of A",
};
d.children = d._children;
d.children.push(newChild);
// console.log(d.children);
update(d);
}
$("#child-info").hide();
});
});;
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
$(".addLeftChild, .addRightChild").hide();
if (d.id === 1) {
$(".rightparent").children(".addRightChild").show();
$(this).children(".addRightChild").show();
} else {
$(this).children(".addRightChild").show();
}
d3.selectAll("rect").style("fill", "#f1f1f1"); //reset all node colors
d3.selectAll("path").style("stroke", "#85e0e0"); //reset the color for all links
while (d.parent) {
d3.select("#leftnode1").style("fill", "#F7CA18");
d3.selectAll("#rightnode" + d.id).style("fill", "#F7CA18"); //color the node
if (d.parent != "null")
d3.selectAll("#rightlink" + d.parent.id + "-" + d.id).style("stroke", "#F7CA18"); //color the path
d = d.parent;
}
}
}
答案 1 :(得分：0)
通过添加此代码解决了问题：
/* transition labels to new positions */
var label = svg.selectAll("text.text-link")
.data(links, function(d) {
return d.target.id;
});
label.transition()
.duration(duration)
.attr("d", diagonal);
label.exit().transition()
.duration(duration)
.attr("d", function(d) {
var o = {
x: source.x,
y: source.y
};
return diagonal({
source: o,
target: o
});
})
.remove();