我正在尝试使用Node.js和Sigma.js在网页上显示一个简单的图表。我没有收到任何错误。一切似乎都能正常工作,但图表未出现。感谢您的帮助。
注意:我从此目录树中删除了不相关的文件
mono
我使用npm导入了sigma.js。我使用以下命令创建了sigma-test-bundle.js:
|-- node_modules
|-- package.json
|-- public
| |-- css
| | `-- style.css
| `-- javascript
| |-- sigma-test-bundle.js
| `-- sigma-test.js
|-- server.js
`-- views
`-- index.ejs
sigma-test.js:
browserify sigma-test.js -o sigma-test-bundle.js
index.ejs:
const sigma = require('sigma');
console.log("sigma-test.js")
var i,
s,
N = 50,
E = 50,
g = {
nodes: [],
edges: []
};
// Generate random nodes:
for (i = 0; i < N; i++)
g.nodes.push({
id: 'n' + i,
label: 'Article ' + i,
x: Math.random(),
y: Math.random(),
size: Math.random(),
color: '#ec5148'
});
// Generate random edges
for (i = 0; i < E; i++)
g.edges.push({
id: 'connection' + i,
source: 'n' + (Math.random() * N | 0),
target: 'n' + (Math.random() * N | 0),
size: Math.random(),
color: '#ccb6b6'
});
s = new sigma({
graph: g,
container: 'container',
settings: {
defaultNodeColor: '#ec5148'
}
});
//Initialize nodes as a circle
s.graph.nodes().forEach(function(node, i, a) {
node.x = Math.cos(Math.PI * 2 * i / a.length);
node.y = Math.sin(Math.PI * 2 * i / a.length);
});
console.log('End of sigma-test.js')
server.js:
<head>
<title>Test File</title>
<meta name=”viewport” content=”width=device-width, initial-scale=1.0">
<meta http-equiv=”X-UA-Compatible” content=”ie=edge”>
</head>
<body>
<h1>Test File</h1>
<h2>Tests basic functionality needed for the project.</h2>
This text should appear above the sigma chart!
<div id="container"></div>
<script src='/javascript/sigma-test-bundle.js'></script>
This text should appear below the sigma chart!
</body>
答案 0 :(得分:0)
您的代码对我有用,只需添加样式:
<style> #container { height: 100% } </style>
希望有帮助!