2017-09-23 118 views
0

我基於這個簡單的例子中D3.js力向圖: https://bl.ocks.org/mbostock/950642如何根據名稱搜索某個節點?

現在,我在CSS部分添加一個字段中鍵入一些文字。我的目標是建立一種搜索框來根據名字找到節點。這意味着,如果我輸入「Joly」,那麼應該突出顯示具有該名稱的節點。 問題是如何解決這個問題?

<style> 
    input[type=text] { 
     width: 100%; 
     padding: 12px 20px; 
     margin: 8px 0; 
     box-sizing: border-box; 
     border: 2px solid red; 
     border-radius: 4px; 
    } 
    </style> 
    </head> 
    <body> 

    <p>Text fields with borders:</p> 

    <form> 
     <label for="fname">Some Input</label> 
     <input type="text" id="fname" name="fname"> 
    </form> 
    <script src="//d3js.org/d3.v3.min.js"></script> 
<script> 

var width = 960, 
    height = 500 

var svg = d3.select("body").append("svg") 
    .attr("width", width) 
    .attr("height", height); 

var force = d3.layout.force() 
    .gravity(0.05) 
    .distance(100) 
    .charge(-100) 
    .size([width, height]); 

d3.json("graph.json", function(error, json) { 
    if (error) throw error; 

    force 
     .nodes(json.nodes) 
     .links(json.links) 
     .start(); 

    var link = svg.selectAll(".link") 
     .data(json.links) 
    .enter().append("line") 
     .attr("class", "link"); 

    var node = svg.selectAll(".node") 
     .data(json.nodes) 
    .enter().append("g") 
     .attr("class", "node") 
     .call(force.drag); 

    node.append("image") 
     .attr("xlink:href", "https://github.com/favicon.ico") 
     .attr("x", -8) 
     .attr("y", -8) 
     .attr("width", 16) 
     .attr("height", 16); 

    node.append("text") 
     .attr("dx", 12) 
     .attr("dy", ".35em") 
     .text(function(d) { return d.name }); 

    force.on("tick", function() { 
    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("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }); 
    }); 
}); 

</script> 

回答

2

搜索所有節點並檢查每個節點的名稱數據值。

d3.select("#fname").on("input", function() { 
var inputValue = this.value; 
node.each(function (d) { 
    var highLight = "black"; 
    if(d.name.toLowerCase() == inputValue.toLowerCase()) highLight = "red"; 
    d3.select(this).style("fill", highLight); 
}); 
}); 

var width = 960, 
 
    height = 500 
 

 
var svg = d3.select("body").append("svg") 
 
    .attr("width", width) 
 
    .attr("height", height); 
 

 
var force = d3.layout.force() 
 
    .gravity(0.05) 
 
    .distance(100) 
 
    .charge(-100) 
 
    .size([width, height]); 
 

 
var json = {"nodes":[{"name":"Myriel","group":1},{"name":"Napoleon","group":1},{"name":"Mlle.Baptistine","group":1},{"name":"Mme.Magloire","group":1},{"name":"CountessdeLo","group":1},{"name":"Geborand","group":1},{"name":"Champtercier","group":1},{"name":"Cravatte","group":1},{"name":"Count","group":1},{"name":"OldMan","group":1},{"name":"Labarre","group":2},{"name":"Valjean","group":2},{"name":"Marguerite","group":3},{"name":"Mme.deR","group":2},{"name":"Isabeau","group":2},{"name":"Gervais","group":2},{"name":"Tholomyes","group":3},{"name":"Listolier","group":3},{"name":"Fameuil","group":3},{"name":"Blacheville","group":3},{"name":"Favourite","group":3},{"name":"Dahlia","group":3},{"name":"Zephine","group":3},{"name":"Fantine","group":3},{"name":"Mme.Thenardier","group":4},{"name":"Thenardier","group":4},{"name":"Cosette","group":5},{"name":"Javert","group":4},{"name":"Fauchelevent","group":0},{"name":"Bamatabois","group":2},{"name":"Perpetue","group":3},{"name":"Simplice","group":2},{"name":"Scaufflaire","group":2},{"name":"Woman1","group":2},{"name":"Judge","group":2},{"name":"Champmathieu","group":2},{"name":"Brevet","group":2},{"name":"Chenildieu","group":2},{"name":"Cochepaille","group":2},{"name":"Pontmercy","group":4},{"name":"Boulatruelle","group":6},{"name":"Eponine","group":4},{"name":"Anzelma","group":4},{"name":"Woman2","group":5},{"name":"MotherInnocent","group":0},{"name":"Gribier","group":0},{"name":"Jondrette","group":7},{"name":"Mme.Burgon","group":7},{"name":"Gavroche","group":8},{"name":"Gillenormand","group":5},{"name":"Magnon","group":5},{"name":"Mlle.Gillenormand","group":5},{"name":"Mme.Pontmercy","group":5},{"name":"Mlle.Vaubois","group":5},{"name":"Lt.Gillenormand","group":5},{"name":"Marius","group":8},{"name":"BaronessT","group":5},{"name":"Mabeuf","group":8},{"name":"Enjolras","group":8},{"name":"Combeferre","group":8},{"name":"Prouvaire","group":8},{"name":"Feuilly","group":8},{"name":"Courfeyrac","group":8},{"name":"Bahorel","group":8},{"name":"Bossuet","group":8},{"name":"Joly","group":8},{"name":"Grantaire","group":8},{"name":"MotherPlutarch","group":9},{"name":"Gueulemer","group":4},{"name":"Babet","group":4},{"name":"Claquesous","group":4},{"name":"Montparnasse","group":4},{"name":"Toussaint","group":5},{"name":"Child1","group":10},{"name":"Child2","group":10},{"name":"Brujon","group":4},{"name":"Mme.Hucheloup","group":8}],"links":[{"source":1,"target":0,"value":1},{"source":2,"target":0,"value":8},{"source":3,"target":0,"value":10},{"source":3,"target":2,"value":6},{"source":4,"target":0,"value":1},{"source":5,"target":0,"value":1},{"source":6,"target":0,"value":1},{"source":7,"target":0,"value":1},{"source":8,"target":0,"value":2},{"source":9,"target":0,"value":1},{"source":11,"target":10,"value":1},{"source":11,"target":3,"value":3},{"source":11,"target":2,"value":3},{"source":11,"target":0,"value":5},{"source":12,"target":11,"value":1},{"source":13,"target":11,"value":1},{"source":14,"target":11,"value":1},{"source":15,"target":11,"value":1},{"source":17,"target":16,"value":4},{"source":18,"target":16,"value":4},{"source":18,"target":17,"value":4},{"source":19,"target":16,"value":4},{"source":19,"target":17,"value":4},{"source":19,"target":18,"value":4},{"source":20,"target":16,"value":3},{"source":20,"target":17,"value":3},{"source":20,"target":18,"value":3},{"source":20,"target":19,"value":4},{"source":21,"target":16,"value":3},{"source":21,"target":17,"value":3},{"source":21,"target":18,"value":3},{"source":21,"target":19,"value":3},{"source":21,"target":20,"value":5},{"source":22,"target":16,"value":3},{"source":22,"target":17,"value":3},{"source":22,"target":18,"value":3},{"source":22,"target":19,"value":3},{"source":22,"target":20,"value":4},{"source":22,"target":21,"value":4},{"source":23,"target":16,"value":3},{"source":23,"target":17,"value":3},{"source":23,"target":18,"value":3},{"source":23,"target":19,"value":3},{"source":23,"target":20,"value":4},{"source":23,"target":21,"value":4},{"source":23,"target":22,"value":4},{"source":23,"target":12,"value":2},{"source":23,"target":11,"value":9},{"source":24,"target":23,"value":2},{"source":24,"target":11,"value":7},{"source":25,"target":24,"value":13},{"source":25,"target":23,"value":1},{"source":25,"target":11,"value":12},{"source":26,"target":24,"value":4},{"source":26,"target":11,"value":31},{"source":26,"target":16,"value":1},{"source":26,"target":25,"value":1},{"source":27,"target":11,"value":17},{"source":27,"target":23,"value":5},{"source":27,"target":25,"value":5},{"source":27,"target":24,"value":1},{"source":27,"target":26,"value":1},{"source":28,"target":11,"value":8},{"source":28,"target":27,"value":1},{"source":29,"target":23,"value":1},{"source":29,"target":27,"value":1},{"source":29,"target":11,"value":2},{"source":30,"target":23,"value":1},{"source":31,"target":30,"value":2},{"source":31,"target":11,"value":3},{"source":31,"target":23,"value":2},{"source":31,"target":27,"value":1},{"source":32,"target":11,"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\t 
 
\t 
 
    force 
 
     .nodes(json.nodes) 
 
     .links(json.links) 
 
     .start(); 
 

 
    var link = svg.selectAll(".link") 
 
     .data(json.links) 
 
    .enter().append("line") 
 
     .attr("class", "link"); 
 

 
    var node = svg.selectAll(".node") 
 
     .data(json.nodes) 
 
    .enter().append("g") 
 
     .attr("class", "node") 
 
     .call(force.drag); 
 

 
    node.append("image") 
 
     .attr("xlink:href", "https://github.com/favicon.ico") 
 
     .attr("x", -8) 
 
     .attr("y", -8) 
 
     .attr("width", 16) 
 
     .attr("height", 16); 
 

 
    node.append("text") 
 
     .attr("dx", 12) 
 
     .attr("dy", ".35em") 
 
     .text(function(d) { return d.name }); 
 

 
    force.on("tick", function() { 
 
    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("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }); 
 
    }); 
 
    d3.select("#fname").on("input", function() { 
 
\t var inputValue = this.value; 
 
\t node.each(function (d) { 
 
\t \t var highLight = "black"; 
 
\t \t if(d.name.toLowerCase() == inputValue.toLowerCase()) highLight = "red"; 
 
\t \t d3.select(this).style("fill", highLight); 
 
\t }); 
 
    });
input[type=text] { 
 
     width: 100%; 
 
     padding: 12px 20px; 
 
     margin: 8px 0; 
 
     box-sizing: border-box; 
 
     border: 2px solid red; 
 
     border-radius: 4px; 
 
    }
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.3.5/d3.min.js"></script> 
 
<p>Text fields with borders:</p> 
 

 
    <form> 
 
     <label for="fname">Some Input</label> 
 
     <input type="text" id="fname" name="fname"> 
 
    </form>

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