在Vis.js中设置缩放级别

Question

我有一个网络，我正在使用vis.js构建，但它在宽度方面太大，无法放入页面的容器中。网络从左到右运行，包含有关特定进程的步骤。当一个人完成任务时，服务器会提供新的JSON记录来更新颜色。

由于布局，我无法更改容器大小。当网络加载时，它会导致字体非常小且不可读。有没有办法可以将缩放级别设置为一个选项，以便只显示该过程中的当前步骤？

function draw() {

test = null;

// create a network
var testContainer = document.getElementById('testing');

// create some nodes
var width = testing.clientWidth;

var nodes = [
  {id: 1, x: 0, y: 1, label: 'Start', color: 'green', shape: 'circle'},
  {id: 2, label: 'Step 2', shape: 'square'},
  {id: 3, label: 'Step 3', shape: 'square'},
  {id: 4, label: 'Step 4', shape: 'square'},
  {id: 5, label: 'Step 5', shape: 'square'},
  {id: 6, label: 'Step 6', shape: 'square'},
  {id: 7, label: 'Step 7', shape: 'square'},
  {id: 8, label: 'Step 8', shape: 'square'},
  {id: 9, label: 'Step 9', shape: 'square'},
  {id: 10, label: 'Step 10', shape: 'square'},
  {id: 11, label: 'Step 11', shape: 'square'},
  {id: 12, x: width * 2, y: 1, label: 'Success!', shape: 'circle'}
];

// create some edges
var edges = [
  {from: 1, to: 2, style: 'arrow', color: 'red', width: 1, length: 200}, // individual length definition is possible
  {from: 2, to: 3, style: 'arrow', width: 1, length: 200},
  {from: 3, to: 4, style: 'arrow', width: 1, length: 200},
  {from: 4, to: 5, style: 'arrow', width: 1, length: 200},
  {from: 5, to: 6, style: 'arrow', width: 1, length: 200},
  {from: 6, to: 7, style: 'arrow', width: 1, length: 200},
  {from: 7, to: 8, style: 'arrow', width: 1, length: 200},
  {from: 8, to: 9, style: 'arrow', width: 1, length: 200},
  {from: 9, to: 10, style: 'arrow', width: 1, length: 200},
  {from: 10, to: 11, style: 'arrow', width: 1, length: 200},
  {from: 11, to: 12, style: 'arrow', width: 1, length: 200}
];

var testData = {
  nodes: nodes,
  edges: edges
};
var testOptions = {
        width: '100%'
};
var test = new vis.Network(testContainer, testData, testOptions);
}

Answer 1

你可以使用像fit，focus和moveTo这样的函数来改变缩放级别。

示例：http://visjs.org/examples/network/other/animationShowcase.html

文件：http://visjs.org/docs/network/