//TODO: Is there no user-land API for this?
var getGroup = function getGroup(nodeId) {
var nodesHandler = network.nodesHandler;
var innerNodes = nodesHandler.body.nodes;
//Lazily assume ids match indices
var node = innerNodes[nodeId];
return node.options.group;
};
var getGroupNodes = function getGroupNodes(group) {
// http://elijahmanor.com/reducing-filter-and-map-down-to-reduce/
var filtered = nodes.reduce(function(output, node) {
if (node.group === group) {
output.push(node.id);
}
return output;
}, []);
return filtered;
};
//START Vis.js group example
var color = 'gray';
var len = undefined;
var nodes = [{
id: 0,
label: "0",
group: 0
}, {
id: 1,
label: "1",
group: 0
}, {
id: 2,
label: "2",
group: 0
}, {
id: 3,
label: "3",
group: 1
}, {
id: 4,
label: "4",
group: 1
}, {
id: 5,
label: "5",
group: 1
}, {
id: 6,
label: "6",
group: 2
}, {
id: 7,
label: "7",
group: 2
}, {
id: 8,
label: "8",
group: 2
}, {
id: 9,
label: "9",
group: 3
}, {
id: 10,
label: "10",
group: 3
}, {
id: 11,
label: "11",
group: 3
}, {
id: 12,
label: "12",
group: 4
}, {
id: 13,
label: "13",
group: 4
}, {
id: 14,
label: "14",
group: 4
}, {
id: 15,
label: "15",
group: 5
}, {
id: 16,
label: "16",
group: 5
}, {
id: 17,
label: "17",
group: 5
}, {
id: 18,
label: "18",
group: 6
}, {
id: 19,
label: "19",
group: 6
}, {
id: 20,
label: "20",
group: 6
}, {
id: 21,
label: "21",
group: 7
}, {
id: 22,
label: "22",
group: 7
}, {
id: 23,
label: "23",
group: 7
}, {
id: 24,
label: "24",
group: 8
}, {
id: 25,
label: "25",
group: 8
}, {
id: 26,
label: "26",
group: 8
}, {
id: 27,
label: "27",
group: 9
}, {
id: 28,
label: "28",
group: 9
}, {
id: 29,
label: "29",
group: 9
}];
var edges = [{
from: 1,
to: 0
}, {
from: 2,
to: 0
}, {
from: 4,
to: 3
}, {
from: 5,
to: 4
}, {
from: 4,
to: 0
}, {
from: 7,
to: 6
}, {
from: 8,
to: 7
}, {
from: 7,
to: 0
}, {
from: 10,
to: 9
}, {
from: 11,
to: 10
}, {
from: 10,
to: 4
}, {
from: 13,
to: 12
}, {
from: 14,
to: 13
}, {
from: 13,
to: 0
}, {
from: 16,
to: 15
}, {
from: 17,
to: 15
}, {
from: 15,
to: 10
}, {
from: 19,
to: 18
}, {
from: 20,
to: 19
}, {
from: 19,
to: 4
}, {
from: 22,
to: 21
}, {
from: 23,
to: 22
}, {
from: 22,
to: 13
}, {
from: 25,
to: 24
}, {
from: 26,
to: 25
}, {
from: 25,
to: 7
}, {
from: 28,
to: 27
}, {
from: 29,
to: 28
}, {
from: 28,
to: 0
}];
// create a network
var container = document.getElementById('mynetwork');
var data = {
nodes: nodes,
edges: edges
};
var options = {
nodes: {
shape: 'dot',
size: 30,
font: {
size: 32,
color: '#ffffff'
},
borderWidth: 2
},
edges: {
width: 2
}
};
network = new vis.Network(container, data, options);
//END Vis.js group example
network.on("click", function(e) {
//Zoom only on single node clicks, zoom out otherwise
if (e.nodes.length !== 1) {
network.fit();
return;
}
var nodeId = e.nodes[0];
//Find out what group the node belongs to
var group = getGroup(nodeId);
//TODO: How do you want to handle ungrouped nodes?
if (group === undefined) return;
var groupNodes = getGroupNodes(group);
network.fit({
nodes: groupNodes
});
});
html,
body,
#mynetwork {
width: 100%;
height: 100%;
margin: 0;
}
<script src="http://cdnjs.cloudflare.com/ajax/libs/vis/4.3.0/vis.min.js"></script>
<div id="mynetwork"></div>
Cảm ơn, tôi phải đọc cẩn thận hơn các tài liệu của 'phương pháp fit' ;-) –