Skip to content

optimize #51

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
Open

optimize #51

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
4c86285
optimize https://github.com/cytoscape/cytoscape.js-navigator/issues/4…
Jun 17, 2021
6b7269b
simple file
Jun 17, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
41 changes: 41 additions & 0 deletions 03-data-big-data/03-data-big-data-elements.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,41 @@
/**
* generates the specified number of nodes and edges
* @param {*} nodeLength node number
* @param {*} linkLength edge number
*/
function createGraphData(nodeLength, linkLength) {
const nodes = Array.from(Array(nodeLength), (v, k) => ({
data: {
id: k.toString(),
},
}))
const existsIds = {}
const edges = []

while (edges.length < linkLength) {
const source = nodes[Math.floor(Math.random() * nodes.length)].data.id
const target = nodes[Math.floor(Math.random() * nodes.length)].data.id
const readyAddId = `${source}-${target}`

if (!existsIds[readyAddId]) {
edges.push({
data: {
source,
target,
id: readyAddId,
}
})
existsIds[readyAddId] = true
}
}

return {
nodes,
edges,
}
}

// createGraphData(2000, 2000)

// 2000 nodes and 2000 edges can be generated by above function
const elements = createGraphData(3000, 3000)
76 changes: 76 additions & 0 deletions 03-data-big-data/03-data-big-data.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,76 @@
<!DOCTYPE>

<html>

<head>
<title>cytoscape-navigator.js big data demo</title>
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1">

<link href="../cytoscape.js-navigator.css" rel="stylesheet" type="text/css" />
<style>
body {
font-family: helvetica neue, helvetica, liberation sans, arial, sans-serif;
font-size: 14px;
}

#cy {
position: absolute;
left: 0;
top: 0;
bottom: 0;
right: 0;
z-index: 999;
}

h1 {
opacity: 0.5;
font-size: 1em;
font-weight: bold;
}
</style>
</head>

<body>
<div id="cy"></div>
<script src="./03-data-big-data-elements.js"></script>
<script src="./lib/cytoscape.min.js"></script>
<script src="../cytoscape-navigator.js"></script>
<script>
var cy = cytoscape({

container: document.getElementById('cy'),

elements,

style: [
{
selector: 'node',
style: {
'content': 'data(id)'
}
},

{
selector: 'edge',
style: {
'target-arrow-shape': 'triangle'
}
},

{
selector: ':selected',
style: {

}
}
],

})

cy.navigator({
// options...
});
</script>
</body>

</html>
32 changes: 32 additions & 0 deletions 03-data-big-data/lib/cytoscape.min.js
View file
Open in desktop

Large diffs are not rendered by default.

35 changes: 32 additions & 3 deletions cytoscape-navigator.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,8 @@
, dblClickDelay: 200 // milliseconds
, removeCustomContainer: true // destroy the container specified by user on plugin destroy
, rerenderDelay: 500 // ms to throttle rerender updates to the panzoom for performance
, disableUpdateThumbnailEvents: ['pan', 'zoom'] // disable update thumbnail events
, disableUpdateTime: 1000, // ms to disable update thumbnail time interval when disableUpdateThumbnailEvents turn on
};

var debounce = (function(){
Expand Down Expand Up @@ -858,11 +860,20 @@
this._thumbnailUpdating = true;

var render = function() {
that._checkThumbnailSizesAndUpdate();
that._setupView();

var $img = that.$thumbnail;
var img = $img;
var isInitialImg = img.getAttribute('src')

if (isInitialImg) {
const isBreak = disableUpdateThumbnailEvents.some(evtType => that[evtType + 'Event'])

if (isBreak) {
return
}
}

that._checkThumbnailSizesAndUpdate();
that._setupView();

var w = that.panelWidth;
var h = that.panelHeight;
Expand Down Expand Up @@ -895,6 +906,24 @@
this._onRenderHandler = throttle(render, that.options.rerenderDelay)

this.cy.onRender( this._onRenderHandler )

// listen disable update thumbnail events
const disableUpdateThumbnailEvents = that.options.disableUpdateThumbnailEvents
for (var i = 0; i < disableUpdateThumbnailEvents.length; i++) {
this.cy.on(disableUpdateThumbnailEvents[i], that._onDisEeventHandler.bind(that, disableUpdateThumbnailEvents[i]))
}
}

, _onDisEeventHandler: function() {
const that = this;
const eventType = [].slice.call(arguments)[0]
clearTimeout(that[eventType + 'EventIt'])

that[eventType + 'EventIt'] = setTimeout(() => {
that[eventType + 'Event'] = false
}, that.options.disableUpdateTime);

that[eventType + 'Event'] = true
}

/****************************
Expand Down