使用jQuery
我有一个网页，使用D3 javascript库显示强制导向图（带有其他功能）。我正在尝试添加节点搜索栏（使用jQuery），当我搜索其中一个属性（在json文件的节点部分中找到的名称，clusterID等）时突出显示该节点。
所以我的网页正确显示了图表上方的搜索栏，但是搜索按钮没有正确地突出显示一个节点。每次在搜索栏中输入字符时，我都会收到Chrome控制台消息：VM84:1 Uncaught SyntaxError: Unexpected token < in JSON at position 0。完整的消息位于问题的底部。此外，当我单击搜索按钮以搜索其中一个节点的已知名称属性时，控制台中没有任何操作。
我似乎无法让jQuery和D3代码协同工作，特别是$() jQuery函数中的自动完成功能和graph.js文件中的searchNode函数。
任何人都可以帮助我吗？下面是jsFiddle链接，用于构建网页的html和javascript文件，以及Chrome控制台消息的屏幕截图。谢谢你的帮助！
jsFiddle：http://jsfiddle.net/spw1016/mc5Lprcr/
Chrome控制台完整错误：
在搜索栏中输入完整错误消息：
Uncaught SyntaxError: Unexpected token < in JSON at position 0 VM89:1
parseJSON @ jquery-1.9.1.min.js:3
transformResult @ jquery.autocomplete.min.js:10
processResponse @ jquery.autocomplete.min.js:21
(anonymous function) @ jquery.autocomplete.min.js:19
c @ jquery-1.9.1.min.js:3
fireWith @ jquery-1.9.1.min.js:3
k @ jquery-1.9.1.min.js:5
r @ jquery-1.9.1.min.js:5
的index.html：
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
overflow:hidden;
overflow:hidden;
margin:0;
}
text {
font-family: sans-serif;
pointer-events: none;
}
</style>
<head lang="en">
<title>Graph Visualization</title>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
<script type="text/javascript" src="js/jquery.autocomplete.min.js"></script>
<script type="text/javascript" src="js/currency-autocomplete.js"></script>
</head>
<body>
<div class="ui-widget">
<input id="search">
<button type="button" .onclick="searchNode()">Search</button>
</div>
</body>
<script src="graph.js"></script>
</html>
graph.js：
var w = window.innerWidth;
var h = window.innerHeight;
var keyc = true, keys = true, keyt = true, keyr = true, keyx = true, keyd = true, keyl = true, keym = true, keyh = true, key1 = true, key2 = true, key3 = true, key0 = true
var focus_node = null, highlight_node = null;
var text_center = false;
var outline = false;
var min_score = 1;
var max_score = 10;
/*
var color = d3.scale.linear()
.domain(1, 10)
.range(["lime", "yellow", "red"]);
*/
var color = d3.scale.linear()
.domain([min_score, (min_score+max_score)/2, max_score])
.range(["lime", "yellow", "red"]);
var highlight_color = "blue";
var highlight_trans = 0.1;
var size = d3.scale.pow().exponent(1)
.domain([1,100])
.range([8,24]);
var force = d3.layout.force()
.linkDistance(60)
.charge(-300)
.size([w,h]);
var default_node_color = "#ccc";
//var default_node_color = "rgb(3,190,100)";
var default_link_color = "#888";
var nominal_base_node_size = 8;
var nominal_text_size = 10;
var max_text_size = 24;
var nominal_stroke = 1.5;
var max_stroke = 4.5;
var max_base_node_size = 36;
var min_zoom = 0.1;
var max_zoom = 7;
var svg = d3.select("body").append("svg");
var zoom = d3.behavior.zoom().scaleExtent([min_zoom,max_zoom])
var g = svg.append("g");
svg.style("cursor","move");
/*
var request = new XMLHttpRequest();
request.open("GET", "graph.json", false);
request.send(null)
var graph = JSON.parse(request.responseText);
*/
d3.json("graph.json", function(error, graph) {
var linkedByIndex = {};
graph.links.forEach(function(d) {
linkedByIndex[d.source + "," + d.target] = true;
});
function isConnected(a, b) {
return linkedByIndex[a.index + "," + b.index] || linkedByIndex[b.index + "," + a.index] || a.index == b.index;
}
function hasConnections(a) {
for (var property in linkedByIndex) {
s = property.split(",");
if ((s[0] == a.index || s[1] == a.index) && linkedByIndex[property]) return true;
}
return false;
}
force
.nodes(graph.nodes)
.links(graph.links)
.start();
var link = g.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width",nominal_stroke)
.style("stroke", default_link_color)
var node = g.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.call(force.drag)
node.on("dblclick.zoom", function(d) { d3.event.stopPropagation();
var dcx = (window.innerWidth/2-d.x*zoom.scale());
var dcy = (window.innerHeight/2-d.y*zoom.scale());
zoom.translate([dcx,dcy]);
g.attr("transform", "translate("+ dcx + "," + dcy + ")scale(" + zoom.scale() + ")");
});
var tocolor = "fill";
var towhite = "stroke";
if (outline) {
tocolor = "stroke"
towhite = "fill"
}
var circle = node.append("path")
.attr("d", d3.svg.symbol()
.size(function(d) { return Math.PI*Math.pow(size(d.size)||nominal_base_node_size,2); })
.type(function(d) { return d.type; }))
.style("fill", function(d) {return color(d.clusterID);})
.style("stroke-width", nominal_stroke)
.style(towhite, "white");
var text = g.selectAll(".text")
.data(graph.nodes)
.enter().append("text")
.attr("dy", ".35em")
.style("font-size", nominal_text_size + "px")
if (text_center)
text.text(function(d) { return d.name; })
.style("text-anchor", "middle");
else
text.attr("dx", function(d) {return (size(d.size)||nominal_base_node_size);})
.text(function(d) { return '\u2002'+d.name; });
node.on("mouseover", function(d) {
set_highlight(d);
})
.on("mousedown", function(d) { d3.event.stopPropagation();
focus_node = d;
set_focus(d)
if (highlight_node === null) set_highlight(d)}).on("mouseout", function(d) {
exit_highlight();});
d3.select(window).on("mouseup",
function() {
if (focus_node!==null)
{
focus_node = null;
if (highlight_trans<1)
{
circle.style("opacity", 1);
text.style("opacity", 1);
link.style("opacity", 1);
}
}
if (highlight_node === null) exit_highlight();
});
function exit_highlight()
{
highlight_node = null;
if (focus_node===null)
{
svg.style("cursor","move");
if (highlight_color!="white")
{
circle.style(towhite, "white");
text.style("font-weight", "normal");
link.style("stroke", function(o) {return (isNumber(o.score) && o.score>=0)?color(o.score):default_link_color});
}
}
}
function set_focus(d)
{
if (highlight_trans<1) {
circle.style("opacity", function(o) {
return isConnected(d, o) ? 1 : highlight_trans;
});
text.style("opacity", function(o) {
return isConnected(d, o) ? 1 : highlight_trans;
});
link.style("opacity", function(o) {
return o.source.index == d.index || o.target.index == d.index ? 1 : highlight_trans;
});
}
}
function set_highlight(d)
{
svg.style("cursor","pointer");
if (focus_node!==null) d = focus_node;
highlight_node = d;
if (highlight_color!="white")
{
circle.style(towhite, function(o) {
return isConnected(d, o) ? highlight_color : "white";});
text.style("font-weight", function(o) {
return isConnected(d, o) ? "bold" : "normal";});
link.style("stroke", function(o) {
return o.source.index == d.index || o.target.index == d.index ? highlight_color : ((isNumber(o.score) && o.score>=0)?color(o.score):default_link_color);
});
}
}
zoom.on("zoom", function() {
var stroke = nominal_stroke;
if (nominal_stroke*zoom.scale()>max_stroke) stroke = max_stroke/zoom.scale();
link.style("stroke-width",stroke);
circle.style("stroke-width",stroke);
var base_radius = nominal_base_node_size;
if (nominal_base_node_size*zoom.scale()>max_base_node_size) base_radius = max_base_node_size/zoom.scale();
circle.attr("d", d3.svg.symbol()
.size(function(d) { return Math.PI*Math.pow(size(d.size)*base_radius/nominal_base_node_size||base_radius,2); })
.type(function(d) { return d.type; }))
//circle.attr("r", function(d) { return (size(d.size)*base_radius/nominal_base_node_size||base_radius); })
if (!text_center) text.attr("dx", function(d) { return (size(d.size)*base_radius/nominal_base_node_size||base_radius); });
var text_size = nominal_text_size;
if (nominal_text_size*zoom.scale()>max_text_size) text_size = max_text_size/zoom.scale();
text.style("font-size",text_size + "px");
g.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
});
svg.call(zoom);
resize();
//window.focus();
d3.select(window).on("resize", resize).on("keydown", keydown);
force.on("tick", function() {
node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
text.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
});
var optArray = [];
for (var i = 0; i < graph.nodes.length - 1; i++) {
optArray.push(graph.nodes[i].name);
}
optArray = optArray.sort();
$(function () {
$("#search").autocomplete({
source: optArray
});
});
function searchNode() {
//find the node
var selectedVal = document.getElementById('search').value;
//node = svg.selectAll(".node");
if (selectedVal == "none") {
node.style("stroke", "white").style("stroke-width", "1");
} else {
var selected = node.filter(function (d, i) {
return d.name != selectedVal;
});
selected.style("opacity", "0");
//var link = svg.selectAll(".link")
link.style("opacity", "0");
d3.selectAll(".node, .link").transition()
.duration(5000)
.style("opacity", 1);
}
}
function resize() {
var width = window.innerWidth, height = window.innerHeight;
svg.attr("width", width).attr("height", height);
force.size([force.size()[0]+(width-w)/zoom.scale(),force.size()[1]+(height-h)/zoom.scale()]).resume();
w = width;
h = height;
}
function keydown() {
if (d3.event.keyCode==32) { force.stop();}
else if (d3.event.keyCode>=48 && d3.event.keyCode<=90 && !d3.event.ctrlKey && !d3.event.altKey && !d3.event.metaKey)
{
switch (String.fromCharCode(d3.event.keyCode)) {
case "C": keyc = !keyc; break;
case "S": keys = !keys; break;
case "T": keyt = !keyt; break;
case "R": keyr = !keyr; break;
case "X": keyx = !keyx; break;
case "D": keyd = !keyd; break;
case "L": keyl = !keyl; break;
case "M": keym = !keym; break;
case "H": keyh = !keyh; break;
case "1": key1 = !key1; break;
case "2": key2 = !key2; break;
case "3": key3 = !key3; break;
case "0": key0 = !key0; break;
}
link.style("display", function(d) {
var flag = vis_by_type(d.source.type)&&vis_by_type(d.target.type)&&vis_by_node_score(d.source.score)&&vis_by_node_score(d.target.score)&&vis_by_link_score(d.score);
linkedByIndex[d.source.index + "," + d.target.index] = flag;
return flag?"inline":"none";});
node.style("display", function(d) {
return (key0||hasConnections(d))&&vis_by_type(d.type)&&vis_by_node_score(d.score)?"inline":"none";});
text.style("display", function(d) {
return (key0||hasConnections(d))&&vis_by_type(d.type)&&vis_by_node_score(d.score)?"inline":"none";});
if (highlight_node !== null)
{
if ((key0||hasConnections(highlight_node))&&vis_by_type(highlight_node.type)&&vis_by_node_score(highlight_node.score)) {
if (focus_node!==null) set_focus(focus_node);
set_highlight(highlight_node);}
else {exit_highlight();}
}
}
}
});
function vis_by_type(type)
{
switch (type) {
case "circle": return keyc;
case "square": return keys;
case "triangle-up": return keyt;
case "diamond": return keyr;
case "cross": return keyx;
case "triangle-down": return keyd;
default: return true;
}
}
function vis_by_node_score(score)
{
if (isNumber(score))
{
if (score>=0.666) return keyh;
else if (score>=0.333) return keym;
else if (score>=0) return keyl;
}
return true;
}
function vis_by_link_score(score)
{
if (isNumber(score))
{
if (score>=0.666) return key3;
else if (score>=0.333) return key2;
else if (score>=0) return key1;
}
return true;
}
function isNumber(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
}
1 个答案:
答案 0 :(得分：1)
搜索的问题是，当你在onclick前面附加一个点时，函数没有被调用：
你在做什么
<button type="button" .onclick="searchNode()">Search</button>
^
|____ this is incorrect no need for a dot here.
这是一个屏幕截图：http://www.clipular.com/c/5115163935506432.png?k=HwZkU1_RriBsPlAfjsZWNzGcBSY
工作代码here
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？