我希望能够发送中心图像后面的路径/链接/边缘（示例中的 Marvel 符号）。我正在使用这个例子：http ://bl.ocks.org/eesur/be2abfb3155a38be4de4启动时，一切都像它应该的那样，但是当您单击 Marvel 符号，然后再次单击时，路径/链接会在图像前面打开。我很确定问题出在点击功能上，但不知道从哪里开始。@import url(http://fonts.googleapis.com/css?family=Source+Code+Pro:400,600);body { font-family: "Source Code Pro", Consolas, monaco, monospace; line-height: 160%; font-size: 16px; margin: 0;}path.link { fill: none; stroke-width: 2px;}.node:not(:hover) .nodetext { display: none;}h1 { font-size: 36px; margin: 10px 0; text-transform: uppercase; font-weight: normal;}h2,h3 { font-size: 18px; margin: 5px 0; font-weight: normal;}header { padding: 20px; position: absolute; top: 0; left: 0;}a:link { color: #EE3124; text-decoration: none;}a:visited { color: #EE3124;}a:hover { color: #A4CD39; text-decoration: underline;}a:active { color: #EE3124;}<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script><section id="vis"></section>
1 回答
慕容708150
TA贡献1831条经验 获得超4个赞
d3.selection.raise()在版本 3中似乎还不存在；如果它确实存在，您应该将其应用于父级，而不是图像。SVG 结构是
svg > g.node > img，但是更改内部图像的位置g.node不会执行任何操作 - 它是独生子。将其应用到g.node.我在答案中提出的另一个选择是使用两个容器，一个用于路径，一个用于节点。那么，顺序并不重要。我在下面实现了这个。
var json = {
"name": "marvel",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/marvel.png",
"children": [{
"name": "Heroes",
"children": [{
"hero": "Spider-Man",
"name": "Peter Benjamin Parker",
"link": "http://marvel.com/characters/54/spider-man",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_spiderman.png",
"size": 40000
},
{
"hero": "CAPTAIN MARVEL",
"name": "Carol Danvers",
"link": "http://marvel.com/characters/9/captain_marvel",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_captainmarvel.png",
"size": 40000
},
{
"hero": "HULK",
"name": "Robert Bruce Banner",
"link": "http://marvel.com/characters/25/hulk",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_hulk.png",
"size": 40000
},
{
"hero": "Black Widow",
"name": "Natalia 'Natasha' Alianovna Romanova",
"link": "http://marvel.com/characters/6/black_widow",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_blackwidow.png",
"size": 40000
},
{
"hero": "Daredevil",
"name": "Matthew Michael Murdock",
"link": "http://marvel.com/characters/11/daredevil",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_daredevil.png",
"size": 40000
},
{
"hero": "Wolverine",
"name": "James Howlett",
"link": "http://marvel.com/characters/66/wolverine",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_wolverine.png",
"size": 40000
},
{
"hero": "Captain America",
"name": "Steven Rogers",
"link": "http://marvel.com/characters/8/captain_america",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_captainamerica.png",
"size": 40000
},
{
"hero": "Iron Man",
"name": "Anthony Edward 'Tony' Stark",
"link": "http://marvel.com/characters/29/iron_man",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_ironman.png",
"size": 40000
},
{
"hero": "THOR",
"name": "Thor Odinson",
"link": "http://marvel.com/characters/60/thor",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/top_thor.png",
"size": 40000
}
]
},
{
"name": "Villains",
"children": [{
"hero": "Dr. Doom",
"name": "Victor von Doom",
"link": "http://marvel.com/characters/13/dr_doom",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/drdoom.png",
"size": 40000
},
{
"hero": "Mystique",
"name": "Unrevealed",
"link": "http://marvel.com/characters/1552/mystique",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/mystique.png",
"size": 40000
},
{
"hero": "Red Skull",
"name": "Johann Shmidt",
"link": "http://marvel.com/characters/1901/red_skull",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/redskull.png",
"size": 40000
},
{
"hero": "Ronan",
"name": "Ronan",
"link": "http://marvel.com/characters/49/ronan",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/ronan.png",
"size": 40000
},
{
"hero": "Magneto",
"name": "Max Eisenhardt",
"link": "http://marvel.com/characters/35/magneto",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/magneto.png",
"size": 40000
},
{
"hero": "Thanos",
"name": "Thanos",
"link": "http://marvel.com/characters/58/thanos",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/thanos.png",
"size": 40000
},
{
"hero": "Black Cat",
"name": "Felicia Hardy",
"link": "http://marvel.com/characters/271/black_cat",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/blackcat.png",
"size": 40000
}
]
},
{
"name": "Teams",
"children": [{
"hero": "Avengers",
"name": "",
"link": "http://marvel.com/characters/68/avengers",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/avengers.png",
"size": 40000
},
{
"hero": "Guardians of the Galaxy",
"name": "",
"link": "http://marvel.com/characters/70/guardians_of_the_galaxy",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/gofgalaxy.png",
"size": 40000
},
{
"hero": "Defenders",
"name": "",
"link": "http://marvel.com/characters/534/defenders",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/defenders.png",
"size": 40000
},
{
"hero": "X-Men",
"name": "",
"link": "http://marvel.com/characters/71/x-men",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/xmen.png",
"size": 40000
},
{
"hero": "Fantastic Four",
"name": "",
"link": "http://marvel.com/characters/69/fantastic_four",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/fantasticfour.png",
"size": 40000
},
{
"hero": "Inhumans",
"name": "",
"link": "http://marvel.com/characters/1040/inhumans",
"img": "http://marvel-force-chart.surge.sh/marvel_force_chart_img/inhumans.png",
"size": 40000
}
]
}
]
};
// some colour variables
var tcBlack = "#130C0E";
// rest of vars
var w = 960,
h = 800,
maxNodeSize = 50,
x_browser = 20,
y_browser = 25,
root;
var vis;
var force = d3.layout.force();
vis = d3.select("#vis").append("svg").attr("width", w).attr("height", h);
var pathContainer = vis.append("g").attr("class", "paths");
var nodeContainer = vis.append("g").attr("class", "nodes");
root = json;
root.fixed = true;
root.x = w / 2;
root.y = h / 4;
// Build the path
var defs = vis.insert("svg:defs")
.data(["end"]);
defs.enter().append("svg:path")
.attr("d", "M0,-5L10,0L0,5");
update();
function update() {
var nodes = flatten(root),
links = d3.layout.tree().links(nodes);
// Restart the force layout.
force.nodes(nodes)
.links(links)
.gravity(0.05)
.charge(-1500)
.linkDistance(100)
.friction(0.5)
.linkStrength(function(l, i) {
return 1;
})
.size([w, h])
.on("tick", tick)
.start();
var path = pathContainer.selectAll("path.link")
.data(links, function(d) {
return d.target.id;
});
path.enter().insert("svg:path")
.attr("class", "link")
// .attr("marker-end", "url(#end)")
.style("stroke", "#eee");
// Exit any old paths.
path.exit().remove();
// Update the nodes…
var node = nodeContainer.selectAll("g.node")
.data(nodes, function(d) {
return d.id;
});
// Enter any new nodes.
var nodeEnter = node.enter().append("svg:g")
.attr("class", "node")
.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
})
.on("click", click)
.call(force.drag);
// Append a circle
nodeEnter.append("svg:circle")
.attr("r", function(d) {
return Math.sqrt(d.size) / 10 || 4.5;
})
.style("fill", "#eee");
// Append images
var images = nodeEnter.append("svg:image")
.attr("xlink:href", function(d) {
return d.img;
})
.attr("x", function(d) {
return -25;
})
.attr("y", function(d) {
return -25;
})
.attr("height", 50)
.attr("width", 50);
// make the image grow a little on mouse over and add the text details on click
var setEvents = images
// Append hero text
.on('click', function(d) {
d3.select("h1").html(d.hero);
d3.select("h2").html(d.name);
d3.select("h3").html("Take me to " + "<a href='" + d.link + "' >" + d.hero + " web page ⇢" + "</a>");
})
.on('mouseenter', function() {
// select element in current context
d3.select(this)
.transition()
.attr("x", function(d) {
return -60;
})
.attr("y", function(d) {
return -60;
})
.attr("height", 100)
.attr("width", 100);
})
// set back
.on('mouseleave', function() {
d3.select(this)
.transition()
.attr("x", function(d) {
return -25;
})
.attr("y", function(d) {
return -25;
})
.attr("height", 50)
.attr("width", 50);
});
// Append hero name on roll over next to the node as well
nodeEnter.append("text")
.attr("class", "nodetext")
.attr("x", x_browser)
.attr("y", y_browser + 15)
.attr("fill", tcBlack)
.text(function(d) {
return d.hero;
});
// Exit any old nodes.
node.exit().remove();
// Re-select for update.
path = pathContainer.selectAll("path.link");
node = nodeContainer.selectAll("g.node");
function tick() {
path.attr("d", function(d) {
var dx = d.target.x - d.source.x,
dy = d.target.y - d.source.y,
dr = Math.sqrt(dx * dx + dy * dy);
return "M" + d.source.x + "," +
d.source.y +
"A" + dr + "," +
dr + " 0 0,1 " +
d.target.x + "," +
d.target.y;
});
node.attr("transform", nodeTransform);
}
}
/**
* Gives the coordinates of the border for keeping the nodes inside a frame
* http://bl.ocks.org/mbostock/1129492
*/
function nodeTransform(d) {
d.x = Math.max(maxNodeSize, Math.min(w - (d.imgwidth / 2 || 16), d.x));
d.y = Math.max(maxNodeSize, Math.min(h - (d.imgheight / 2 || 16), d.y));
return "translate(" + d.x + "," + d.y + ")";
}
/**
* 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();
}
/**
* Returns a list of all nodes under the root.
*/
function flatten(root) {
var nodes = [];
var i = 0;
function recurse(node) {
if (node.children)
node.children.forEach(recurse);
if (!node.id)
node.id = ++i;
nodes.push(node);
}
recurse(root);
return nodes;
}
@import url(http://fonts.googleapis.com/css?family=Source+Code+Pro:400,600);
body {
font-family: "Source Code Pro", Consolas, monaco, monospace;
line-height: 160%;
font-size: 16px;
margin: 0;
}
path.link {
fill: none;
stroke-width: 2px;
}
.node:not(:hover) .nodetext {
display: none;
}
h1 {
font-size: 36px;
margin: 10px 0;
text-transform: uppercase;
font-weight: normal;
}
h2,
h3 {
font-size: 18px;
margin: 5px 0;
font-weight: normal;
}
header {
padding: 20px;
position: absolute;
top: 0;
left: 0;
}
a:link {
color: #EE3124;
text-decoration: none;
}
a:visited {
color: #EE3124;
}
a:hover {
color: #A4CD39;
text-decoration: underline;
}
a:active {
color: #EE3124;
}
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<section id="vis"></section>
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