D3.js 上的搜索功能
Search function on D3.js
我想为我在 D3.js 中的所有圈子创建一个搜索功能。问题是我无法 select 我的文本框中的特定项目,但我可以 select 所有项目以隐藏它们。其他问题,搜索项目以隐藏它是一个好的解决方案吗?这是我隐藏项目的功能:
function myFunction(){
var myBubble = document.getElementById("targetNode").value;
var theNode = d3.select(myBubble.id);
d3.selectAll("circle").style("opacity","0");
d3.selectAll("text").style("opacity","0");
theNode.style("opacity","1");
}
这是问题的在线示例:https://plnkr.co/edit/tFgMhomgn2sKazK674Kl?p=preview
非常感谢!
Select 首先是所有节点,然后是 filter 通过比较绑定到节点的数据所需的节点:
function hideItem(){
var itemName = document.getElementById("targetNode").value;
var theNode = d3.selectAll(".node")
.filter(function(d) { return d.className === itemName });
d3.selectAll(".node").style("opacity","0");
theNode.style("opacity","1");
}
在这里。您可以很容易地发现您没有为节点提供 id,但您正在获取它。你可以像plnkr分享的那样做。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<title>Hide item</title>
</head>
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var diameter = 900,
format = d3.format(",d"),
color = d3.scale.category20c();
var bubble = d3.layout.pack()
.sort(null)
.size([diameter, diameter])
.value(function(d) { return (d.life+1); })
.padding(1.5);
var svg = d3.select("body").append("svg")
.attr("width", diameter)
.attr("height", diameter)
.attr("class", "bubble");
d3.json("./data.json", function(error, root) {
if (error) throw error;
var node = svg.selectAll(".node")
.data(bubble.nodes(classes(root))
.filter(function(d) { return !d.children; }))
.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
node.append("title")
.text(function(d) { return d.className + ": " + format(d.value); });
node.append("circle")
.attr("r", function(d) { return d.r; })
.style("opacity","1")
.style("fill", function(d){
if (d.level == 1){
return "red"
} else if (d.level == 2){
return "orange"
} else if (d.level == 3){
return "#66a3ff"
} else {
return "green"
}
});
var value = function(d) { return d.className.substring(0, d.r / 3); };
node.append("text")
.attr("dy", ".3em")
.style("text-anchor", "middle")
.attr("id", value)
.text(value)
.style("opacity","1");
});
// Returns a flattened hierarchy containing all leaf nodes under the root.
function classes(root) {
var classes = [];
function recurse(name, node) {
if (node.children) node.children.forEach(function(child) { recurse(node.name, child); });
else classes.push({packageName: name, className: node.name, value: node.life, life: node.life, level: node.level});
}
recurse(null, root);
return {children: classes};
}
d3.select(self.frameElement).style("height", diameter + "px");
</script>
<input id="targetNode" name="targetNode" type="text" />
<button onclick="hideItem()">grow node</button>
<br>
<script type="text/javascript">
function hideItem(){
var itemName = document.getElementById("targetNode").value;
console.log(itemName);
var theNode = d3.select("#" + itemName);
console.log(theNode);
d3.selectAll("circle").style("opacity","0");
d3.selectAll("text").style("opacity","0");
d3.select(theNode.node().parentNode).selectAll("circle,text").style("opacity","1");
}
</script>
</body>
因为您需要更改所有圈子的 opacity
,最有效的方法可能是 select 所有圈子的群组并 select 主动应用不透明度。通过将绑定数据的 className
与输入字段的值进行比较,可以使用提供给 .attr("opacity", cb)
的回调来确定要返回的值:
function hideItem(){
var itemName = document.getElementById("targetNode").value;
d3.selectAll(".node")
.attr("opacity", function(d) {
return d.className === itemName ? "1" : "0";
})
}
查看此更新 Plunk。
我想为我在 D3.js 中的所有圈子创建一个搜索功能。问题是我无法 select 我的文本框中的特定项目,但我可以 select 所有项目以隐藏它们。其他问题,搜索项目以隐藏它是一个好的解决方案吗?这是我隐藏项目的功能:
function myFunction(){
var myBubble = document.getElementById("targetNode").value;
var theNode = d3.select(myBubble.id);
d3.selectAll("circle").style("opacity","0");
d3.selectAll("text").style("opacity","0");
theNode.style("opacity","1");
}
这是问题的在线示例:https://plnkr.co/edit/tFgMhomgn2sKazK674Kl?p=preview 非常感谢!
Select 首先是所有节点,然后是 filter 通过比较绑定到节点的数据所需的节点:
function hideItem(){
var itemName = document.getElementById("targetNode").value;
var theNode = d3.selectAll(".node")
.filter(function(d) { return d.className === itemName });
d3.selectAll(".node").style("opacity","0");
theNode.style("opacity","1");
}
在这里。您可以很容易地发现您没有为节点提供 id,但您正在获取它。你可以像plnkr分享的那样做。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<title>Hide item</title>
</head>
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>
var diameter = 900,
format = d3.format(",d"),
color = d3.scale.category20c();
var bubble = d3.layout.pack()
.sort(null)
.size([diameter, diameter])
.value(function(d) { return (d.life+1); })
.padding(1.5);
var svg = d3.select("body").append("svg")
.attr("width", diameter)
.attr("height", diameter)
.attr("class", "bubble");
d3.json("./data.json", function(error, root) {
if (error) throw error;
var node = svg.selectAll(".node")
.data(bubble.nodes(classes(root))
.filter(function(d) { return !d.children; }))
.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
node.append("title")
.text(function(d) { return d.className + ": " + format(d.value); });
node.append("circle")
.attr("r", function(d) { return d.r; })
.style("opacity","1")
.style("fill", function(d){
if (d.level == 1){
return "red"
} else if (d.level == 2){
return "orange"
} else if (d.level == 3){
return "#66a3ff"
} else {
return "green"
}
});
var value = function(d) { return d.className.substring(0, d.r / 3); };
node.append("text")
.attr("dy", ".3em")
.style("text-anchor", "middle")
.attr("id", value)
.text(value)
.style("opacity","1");
});
// Returns a flattened hierarchy containing all leaf nodes under the root.
function classes(root) {
var classes = [];
function recurse(name, node) {
if (node.children) node.children.forEach(function(child) { recurse(node.name, child); });
else classes.push({packageName: name, className: node.name, value: node.life, life: node.life, level: node.level});
}
recurse(null, root);
return {children: classes};
}
d3.select(self.frameElement).style("height", diameter + "px");
</script>
<input id="targetNode" name="targetNode" type="text" />
<button onclick="hideItem()">grow node</button>
<br>
<script type="text/javascript">
function hideItem(){
var itemName = document.getElementById("targetNode").value;
console.log(itemName);
var theNode = d3.select("#" + itemName);
console.log(theNode);
d3.selectAll("circle").style("opacity","0");
d3.selectAll("text").style("opacity","0");
d3.select(theNode.node().parentNode).selectAll("circle,text").style("opacity","1");
}
</script>
</body>
因为您需要更改所有圈子的 opacity
,最有效的方法可能是 select 所有圈子的群组并 select 主动应用不透明度。通过将绑定数据的 className
与输入字段的值进行比较,可以使用提供给 .attr("opacity", cb)
的回调来确定要返回的值:
function hideItem(){
var itemName = document.getElementById("targetNode").value;
d3.selectAll(".node")
.attr("opacity", function(d) {
return d.className === itemName ? "1" : "0";
})
}
查看此更新 Plunk。