Javascript 无法在d3 force布局中的节点上显示文本
我无法在节点顶部显示文本。文本将显示在节点下方 确切地说,节点正在隐藏我的测试 我的代码如下Javascript 无法在d3 force布局中的节点上显示文本,javascript,html,css,d3.js,svg,Javascript,Html,Css,D3.js,Svg,我无法在节点顶部显示文本。文本将显示在节点下方 确切地说,节点正在隐藏我的测试 我的代码如下 <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="../D3/d3.min.js"></script> </head> <body> <style> body {
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="../D3/d3.min.js"></script>
</head>
<body>
<style>
body {
background-color: gray;
}
</style>
<script type="text/javascript">
var width = 1400,
height = 800;
color = d3.scale.category10();
var svg = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height)
.attr("oncontextmenu", "return false;");
svg.append("svg:defs")
.selectAll("marker")
.data(["end"])
.enter().append("svg:marker")
.attr("id", String)
.attr("viewBox", "0 -5 10 10")
.attr("refX", 15)
.attr("refY", -1.5)
.attr("markerWidth", 6)
.attr("markerHeight", 6)
.attr("orient", "auto")
.append("svg:path")
.attr("d", "M0,-5L10,0L0,5");
var nodes =
[
{
"id": "Component",
"description": "Component are the Containers",
"type": "wiring"
},
{
"id": "Form Design And Data Design",
"description": "In the Form Design and Data Design we can create form and data",
"type": "wiring"
},
{
"id": "Data and Property ",
"description": "All the Data has the Property and value Associated with It",
"type": "wiring"
},
{
"id": "Entity Query",
"description": "Entity Queries can be used to create Entity Relationship ",
"type": "wiring"
},
{
"id": "Entity Query and Entity Data",
"description": "Entity Data Can be used to create ",
"type": "wiring"
}
]
var links = [
]
var texts = svg.selectAll(".text")
.data(nodes)
.enter()
.append("text")
.attr("x", 50)
.attr("y", 40)
.attr("fill","white")
.attr("font-family","sans-serif")
.attr("font-size","15px")
.text(function (d) { return d.id;});
var force = d3.layout.force()
.nodes(nodes)
.links(links)
.size([width, height])
.linkDistance(250)
.charge(-1000)
.gravity(.1)
//.charge(-10 / k)
// .gravity(100 * k)
//.linkStrength(5)
.theta(1)
.alpha(3)
//.on('tick', tick)
.start();
var edges = svg.selectAll("line")
.data(links)
.enter()
.append("line")
.style("stroke", "#ccc")
.style("stroke-width", 1)
.attr("marker-end", "url(#end)");
var nodes = svg.selectAll(".rect")
.data(nodes)
.enter()
.append("svg:rect")
.attr("width", 150)
.attr("height", 50)
.attr("rx", 10)
.attr("ry", 10)
.attr("x", 150)
.attr("y",160)
.style("fill", function(d,i) { return color(i); })
.call(force.drag);
force.on("tick", function()
{
edges.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; });
nodes.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; })
texts.attr("transform", function (d)
{
return "translate(" + d.x + "," + d.y + ")";
});
});
</script>
</body>
</html>
身体{
背景颜色:灰色;
}
可变宽度=1400,
高度=800;
颜色=d3.scale.category10();
var svg=d3.选择(“主体”)
.append(“svg”)
.attr(“宽度”,宽度)
.attr(“高度”,高度)
.attr(“oncontextmenu”,“return false;”);
append(“svg:defs”)
.selectAll(“标记”)
.数据([“结束”])
.enter().append(“svg:marker”)
.attr(“id”,字符串)
.attr(“视图框”,“0-5 10”)
.attr(“参考文献”,第15页)
.attr(“参考文献”,-1.5)
.attr(“markerWidth”,6)
.attr(“markerHeight”,6)
.attr(“方向”、“自动”)
.append(“svg:path”)
.attr(“d”,“M0,-5L10,0L0,5”);
变量节点=
[
{
“id”:“组件”,
“说明”:“组件是容器”,
“类型”:“接线”
},
{
“id”:“表单设计和数据设计”,
“说明”:“在表单设计和数据设计中,我们可以创建表单和数据”,
“类型”:“接线”
},
{
“id”:“数据和属性”,
“说明”:“所有数据都具有与其关联的属性和值”,
“类型”:“接线”
},
{
“id”:“实体查询”,
“说明”:“实体查询可用于创建实体关系”,
“类型”:“接线”
},
{
“id”:“实体查询和实体数据”,
“说明”:“实体数据可用于创建”,
“类型”:“接线”
}
]
变量链接=[
]
var text=svg.selectAll(“.text”)
.数据(节点)
.输入()
.append(“文本”)
.attr(“x”,50)
.attr(“y”,40)
.attr(“填充”、“白色”)
.attr(“字体系列”、“无衬线”)
.attr(“字体大小”,“15px”)
.text(函数(d){返回d.id;});
var-force=d3.layout.force()
.节点(节点)
.链接(links)
.尺寸([宽度、高度])
.linkDistance(250)
。收费(-1000)
重力(.1)
//。收费(-10/k)
//.重力(100*k)
//.联系强度(5)
.θ(1)
.alpha(3)
//.on('tick',tick)
.start();
var edges=svg.selectAll(“行”)
.数据(链接)
.输入()
.附加(“行”)
.style(“笔划”,“#ccc”)
.style(“笔划宽度”,1)
.attr(“标记结束”、“url(#结束)”);
var nodes=svg.selectAll(“.rect”)
.数据(节点)
.输入()
.append(“svg:rect”)
.attr(“宽度”,150)
.attr(“高度”,50)
.attr(“rx”,10)
.attr(“ry”,10)
.attr(“x”,150)
.attr(“y”,160)
.style(“填充”,函数(d,i){返回颜色(i);})
.呼叫(强制拖动);
force.on(“勾号”,函数()
{
attr(“x1”,函数(d){返回d.source.x;})
.attr(“y1”,函数(d){返回d.source.y;})
.attr(“x2”,函数(d){返回d.target.x;})
.attr(“y2”,函数(d){返回d.target.y;});
attr(“x”,函数(d){return d.x;})
.attr(“y”,函数(d){返回d.y;})
text.attr(“转换”,函数(d)
{
返回“translate”(“+d.x+”,“+d.y+”);
});
});
将文本创建移动到文件的后面,即节点创建之后
SVG使用画师模型,因此文件中后面的对象将绘制在文件中前面的对象之上。就像画家将早期内容与后期内容重叠绘制一样。将文本创建移动到文件中的后期,即节点创建之后
SVG使用画师模型,因此文件中后面的对象将绘制在文件中前面的对象之上。就像画家将早期的事物与后期的事物重叠绘制一样。首先将var节点重命名为nodesdata
var nodesdata =
[
{
"id": "Component",
"description": "Component are the Containers",
"type": "wiring"
},
{
"id": "Form Design And Data Design",
"description": "In the Form Design and Data Design we can create form and data",
"type": "wiring"
},
{
"id": "Data and Property ",
"description": "All the Data has the Property and value Associated with It",
"type": "wiring"
},
{
"id": "Entity Query",
"description": "Entity Queries can be used to create Entity Relationship ",
"type": "wiring"
},
{
"id": "Entity Query and Entity Data",
"description": "Entity Data Can be used to create ",
"type": "wiring"
}
]
因此,现在与节点关联的数据将变为:
var nodes = svg.selectAll(".rect")
.data(nodesdata)
创建节点后,下一步生成文本:
var texts = svg.selectAll(".text")
.data(nodesdata)
.enter()
.append("text")
.attr("x", 50)
.attr("y", 40)
.attr("fill","white")
.attr("font-family","sans-serif")
.attr("font-size","15px")
.text(function (d) { return d.id;});
工作代码首先将var节点重命名为nodesdata
var nodesdata =
[
{
"id": "Component",
"description": "Component are the Containers",
"type": "wiring"
},
{
"id": "Form Design And Data Design",
"description": "In the Form Design and Data Design we can create form and data",
"type": "wiring"
},
{
"id": "Data and Property ",
"description": "All the Data has the Property and value Associated with It",
"type": "wiring"
},
{
"id": "Entity Query",
"description": "Entity Queries can be used to create Entity Relationship ",
"type": "wiring"
},
{
"id": "Entity Query and Entity Data",
"description": "Entity Data Can be used to create ",
"type": "wiring"
}
]
因此,现在与节点关联的数据将变为:
var nodes = svg.selectAll(".rect")
.data(nodesdata)
创建节点后,下一步生成文本:
var texts = svg.selectAll(".text")
.data(nodesdata)
.enter()
.append("text")
.attr("x", 50)
.attr("y", 40)
.attr("fill","white")
.attr("font-family","sans-serif")
.attr("font-size","15px")
.text(function (d) { return d.id;});
工作代码很有效..非常感谢Cyril…你能告诉我我的代码有什么错误吗..只是为了避免将来的错误..问题是在SVG中没有zindex,所以要在节点上显示文本,我们首先创建节点或圆,然后创建文本,因此,文本将出现在节点的顶部。这对我来说真的解释了很多,作为D3.js中的新手…再次非常感谢…如果我有任何疑问,我会再打给你…如果你不,I don’我不介意你能告诉我如何启动聊天过程吗?…堆栈溢出中…嗨,西里尔..我还有一个问题..很抱歉,我不能再问另一个问题,因为我的提问被阻止了4天..所以我通过评论提问..可以吗