I'm trying to create an edge between two parent nodes using 'curve-style': 'taxi'. Unfortunately, edges between parent nodes don't seem to turn at right angles and generally route themselves very erratically.
window.addEventListener('DOMContentLoaded', function() { // on dom ready
// photos from flickr with creative commons license
var cy = cytoscape({
container: document.getElementById('cy'),
style: cytoscape.stylesheet()
.selector('node')
.style({
'height': 80,
'width': 80,
'background-fit': 'cover',
'border-color': '#000',
'border-width': 3,
'border-opacity': 0.5
})
.selector('.eating')
.style({
'border-color': 'red'
})
.selector('.eater')
.style({
'border-width': 9
})
.selector('edge')
.style({
'width': 6,
'target-arrow-shape': 'triangle',
'line-color': '#ffaaaa',
'target-arrow-color': '#ffaaaa',
'curve-style': 'taxi'
})
.selector('#bird')
.style({
'background-image': 'https://farm8.staticflickr.com/7272/7633179468_3e19e45a0c_b.jpg'
})
.selector('#cat')
.style({
'background-image': 'https://farm2.staticflickr.com/1261/1413379559_412a540d29_b.jpg'
})
.selector('#ladybug')
.style({
'background-image': 'https://farm4.staticflickr.com/3063/2751740612_af11fb090b_b.jpg'
})
.selector('#aphid')
.style({
'background-image': 'https://farm9.staticflickr.com/8316/8003798443_32d01257c8_b.jpg'
})
.selector('#rose')
.style({
'background-image': 'https://farm6.staticflickr.com/5109/5817854163_eaccd688f5_b.jpg'
})
.selector('#grasshopper')
.style({
'background-image': 'https://farm7.staticflickr.com/6098/6224655456_f4c3c98589_b.jpg'
})
.selector('#plant')
.style({
'background-image': 'https://farm1.staticflickr.com/231/524893064_f49a4d1d10_z.jpg'
})
.selector('#wheat')
.style({
'background-image': 'https://farm3.staticflickr.com/2660/3715569167_7e978e8319_b.jpg'
}),
elements: {
nodes: [{
data: {
id: 'cat',
parent: 'bird'
}
},
{
data: {
id: 'bird'
}
},
{
data: {
id: 'ladybug'
}
},
{
data: {
id: 'aphid'
}
},
{
data: {
id: 'rose'
}
},
{
data: {
id: 'grasshopper'
}
},
{
data: {
id: 'plant'
}
},
{
data: {
id: 'wheat'
}
}
],
edges: [{
data: {
source: 'cat',
target: 'bird'
}
},
{
data: {
source: 'bird',
target: 'ladybug'
}
},
{
data: {
source: 'bird',
target: 'grasshopper'
}
},
{
data: {
source: 'grasshopper',
target: 'plant'
}
},
{
data: {
source: 'grasshopper',
target: 'wheat'
}
},
{
data: {
source: 'ladybug',
target: 'aphid'
}
},
{
data: {
source: 'aphid',
target: 'rose'
}
}
]
},
layout: {
name: 'breadthfirst',
directed: true
}
}); // cy init
}); // on dom ready
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
position: absolute;
left: 0;
top: 0;
}
<!DOCTYPE html>
<html>
<head>
<link href="style.css" rel="stylesheet" />
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<title>Images</title>
<script src="https://unpkg.com/cytoscape/dist/cytoscape.min.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>
Is there a way to get taxi edges to behave the same way they do between non-parent nodes?
This is caused by a weired layout behaviour in the breadthfirst layout. When using compound nodes in breadthfirst, it seems that the layout can't handle inner nodes that well, so the outer edges are not really bfs edges (bonding together), but rather two seperate bfs edges (not bonding). In order to get the 'curve-style': 'taxi' to work, there is one simple but dumb way I think. Unfortunately, edges between parent nodes can't seem to turn at the right angles, so we have to make the bfs layout without the child nodes and add them afterwards (this is a stupid hack, but it works if you save all child nodes and add them afterwards:
window.addEventListener('DOMContentLoaded', function() { // on dom ready
// photos from flickr with creative commons license
var cy = cytoscape({
container: document.getElementById('cy'),
style: cytoscape.stylesheet()
.selector('node')
.style({
'height': 80,
'width': 80,
'background-fit': 'cover',
'border-color': '#000',
'border-width': 3,
'border-opacity': 0.5
})
.selector('.eating')
.style({
'border-color': 'red'
})
.selector('.eater')
.style({
'border-width': 9
})
.selector('edge')
.style({
"curve-style": "taxi",
"taxi-direction": "downward",
"taxi-turn": 20,
"taxi-turn-min-distance": 5
})
.selector('#bird')
.style({
'background-image': 'https://farm8.staticflickr.com/7272/7633179468_3e19e45a0c_b.jpg'
})
.selector('#cat')
.style({
'background-image': 'https://farm2.staticflickr.com/1261/1413379559_412a540d29_b.jpg'
})
.selector('#ladybug')
.style({
'background-image': 'https://farm4.staticflickr.com/3063/2751740612_af11fb090b_b.jpg'
})
.selector('#aphid')
.style({
'background-image': 'https://farm9.staticflickr.com/8316/8003798443_32d01257c8_b.jpg'
})
.selector('#rose')
.style({
'background-image': 'https://farm6.staticflickr.com/5109/5817854163_eaccd688f5_b.jpg'
})
.selector('#grasshopper')
.style({
'background-image': 'https://farm7.staticflickr.com/6098/6224655456_f4c3c98589_b.jpg'
})
.selector('#plant')
.style({
'background-image': 'https://farm1.staticflickr.com/231/524893064_f49a4d1d10_z.jpg'
})
.selector('#wheat')
.style({
'background-image': 'https://farm3.staticflickr.com/2660/3715569167_7e978e8319_b.jpg'
}),
elements: {
nodes: [{
data: {
id: 'bird'
}
},
{
data: {
id: 'ladybug'
}
},
{
data: {
id: 'aphid'
}
},
{
data: {
id: 'rose'
}
},
{
data: {
id: 'grasshopper'
}
},
{
data: {
id: 'plant'
}
},
{
data: {
id: 'wheat'
}
}
],
edges: [{
data: {
source: 'bird',
target: 'ladybug'
}
},
{
data: {
source: 'bird',
target: 'grasshopper'
}
},
{
data: {
source: 'grasshopper',
target: 'plant'
}
},
{
data: {
source: 'grasshopper',
target: 'wheat'
}
},
{
data: {
source: 'ladybug',
target: 'aphid'
}
},
{
data: {
source: 'aphid',
target: 'rose'
}
}
]
},
layout: {
name: 'breadthfirst',
directed: true
}
}); // cy init
cy.ready(function() {
cy.ready(function() {
cy.add({
data: {
id: 'cat',
parent: 'bird'
}
});
});
});
}); // on dom ready
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
position: absolute;
left: 0;
top: 0;
}
<!DOCTYPE html>
<html>
<head>
<link href="style.css" rel="stylesheet" />
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<title>Images</title>
<script src="https://unpkg.com/cytoscape/dist/cytoscape.min.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>
I added a couple of lines in the css section of cytoscape, also the cy.ready() part at the end of the js file.
I dug into the source code a bit and found that you can make this work as expected by setting the target-endpoint and source-endpoint edge style attributes to outside-to-node.
There's a bit of a funky behavior where the edge disappears when the parent nodes get too close. I found that setting 'edge-distances': 'node-position' and 'taxi-turn-min-distance': '0px' helped with that. Here is the full edge style for reference:
'curve-style': 'taxi',
'edge-distances': 'node-position',
'taxi-turn-min-distance': '0px',
'source-arrow-shape': 'triangle-backcurve',
'target-arrow-shape': 'triangle',
'target-endpoint': 'outside-to-node',
'source-endpoint': 'outside-to-node'
Related
When using edgehandles, the cytoscape extension, to create an edge between two nodes like this, I see "undefined" at the edge of the arrow. Is there some attribute I can set to get rid of this? Either in the inputs or in the style page with a selector?
For reference, I'm using
var eh = cy.edgehandles({defaults}) and eh.enableDrawMode() with the defaults defined in the edgehandles github.
Thanks!
The code from the edge-handles demo works fine in my snippet, you can use that as a starting point:
document.addEventListener('DOMContentLoaded', function() {
var cy = window.cy = cytoscape({
container: document.getElementById('cy'),
layout: {
name: 'grid',
rows: 2,
cols: 2
},
style: [{
selector: 'node[name]',
style: {
'content': 'data(name)'
}
},
{
selector: 'edge',
style: {
'curve-style': 'bezier',
'target-arrow-shape': 'triangle'
}
},
{
selector: '.eh-handle',
style: {
'background-color': 'red',
'width': 12,
'height': 12,
'shape': 'ellipse',
'overlay-opacity': 0,
'border-width': 12, // makes the handle easier to hit
'border-opacity': 0
}
},
{
selector: '.eh-hover',
style: {
'background-color': 'red'
}
},
{
selector: '.eh-source',
style: {
'border-width': 2,
'border-color': 'red'
}
},
{
selector: '.eh-target',
style: {
'border-width': 2,
'border-color': 'red'
}
},
{
selector: '.eh-preview, .eh-ghost-edge',
style: {
'background-color': 'red',
'line-color': 'red',
'target-arrow-color': 'red',
'source-arrow-color': 'red'
}
},
{
selector: '.eh-ghost-edge.eh-preview-active',
style: {
'opacity': 0
}
}
],
elements: {
nodes: [{
data: {
id: 'j',
name: 'Jerry'
}
},
{
data: {
id: 'e',
name: 'Elaine'
}
},
{
data: {
id: 'k',
name: 'Kramer'
}
},
{
data: {
id: 'g',
name: 'George'
}
}
],
edges: [{
data: {
source: 'j',
target: 'e'
}
},
{
data: {
source: 'j',
target: 'k'
}
},
{
data: {
source: 'j',
target: 'g'
}
},
{
data: {
source: 'e',
target: 'j'
}
},
{
data: {
source: 'e',
target: 'k'
}
},
{
data: {
source: 'k',
target: 'j'
}
},
{
data: {
source: 'k',
target: 'e'
}
},
{
data: {
source: 'k',
target: 'g'
}
},
{
data: {
source: 'g',
target: 'j'
}
}
]
}
});
var eh = cy.edgehandles();
document.querySelector('#draw-on').addEventListener('click', function() {
eh.enableDrawMode();
});
document.querySelector('#draw-off').addEventListener('click', function() {
eh.disableDrawMode();
});
document.querySelector('#start').addEventListener('click', function() {
eh.start(cy.$('node:selected'));
});
});
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;
}
#buttons {
position: absolute;
right: 0;
bottom: 0;
z-index: 99999;
}
<html>
<head>
<title>cytoscape-edgehandles.js demo</title>
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1, maximum-scale=1">
<script src="https://unpkg.com/cytoscape/dist/cytoscape.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.js"></script>
<script src="https://cdn.jsdelivr.net/npm/cytoscape-edgehandles#3.6.0/cytoscape-edgehandles.min.js"></script>
</head>
<body>
<h1>cytoscape-edgehandles demo</h1>
<div id="cy"></div>
<div id="buttons">
<button id="start">Start on selected</button>
<button id="draw-on">Draw mode on</button>
<button id="draw-off">Draw mode off</button>
</div>
</body>
</html>
Using cytoscape.js, I am setting the style of a node while defining it.
Shortened example below:
window.addEventListener('DOMContentLoaded', function(){
var cy = window.cy = cytoscape({
elements: {
nodes: [
{ data: { id: 'a', name: 'apple' }, style: { 'background-color': 'darkgreen' } },
]
}
});
});
(I have a default style for a node that is a different color)
This works fine, but when I run my code, the browser console shows the following warning:
Setting a `style` bypass at element creation is deprecated
What does it mean and what is the correct (non-deprecated) way to set it?
Thank you in advance!
The correct way of doing this would be to use the cytoscape stylesheet, as can be seen in every example in the docs:
var cy = (window.cy = cytoscape({
container: document.getElementById("cy"),
boxSelectionEnabled: false,
autounselectify: true,
style: [{
selector: "node",
css: {
"label": "data(id)",
"text-valign": "center",
"text-halign": "center",
"background-color": "data(color)"
}
},
{
selector: "edge",
css: {
"line-fill": "radial-gradient",
"line-gradient-stop-colors": "red green blue",
"line-gradient-stop-positions": "25 50 75"
}
}
],
elements: {
nodes: [{
data: {
id: "a",
color: "#2763c4"
}
},
{
data: {
id: "b",
color: "#37a32d"
}
},
{
data: {
id: "c",
color: "#37a32d"
}
}
],
edges: [{
data: {
source: "a",
target: "b"
}
},
{
data: {
source: "a",
target: "c"
}
}
]
},
layout: {
name: "dagre"
}
}));
cy.ready(function() {
cy.dblclick();
});
var nid = 0;
cy.bind('dblclick', function(evt) {
console.log('dblclick');
cy.add({
group: 'nodes',
data: {
id: nid,
faveColor: 'red'
},
position: {
x: evt.x,
y: evt.y
}
});
nid++;
});
cy.bind('click', 'node', function(evt) {
console.log('node clicked: ', evt.target.id());
});
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
float: right;
position: absolute;
}
<html>
<head>
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<script src="https://unpkg.com/cytoscape#3.3.0/dist/cytoscape.min.js">
</script>
<!-- cyposcape dagre -->
<script src="https://unpkg.com/dagre#0.7.4/dist/dagre.js"></script>
<script src="https://cdn.rawgit.com/cytoscape/cytoscape.js-dagre/1.5.0/cytoscape-dagre.js"></script>
<script src="https://unpkg.com/cytoscape-dblclick/dist/index.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>
I initialized the cytoscape like this:
var cy = cytoscape({
container: document.getElementById('cy'),
elements: [
{ data: { id: 'a' } },
{ data: { id: 'b' } },
{ data: { id: 'c' } },
{
data: {
id: 'ab',
source: 'a',
target: 'b'
}
},
{
data: {
id: 'ac',
source: 'a',
target: 'c'
}
}
]
});
Then I added a function which adds a new node whenever the user double clicks on the viewport.
var nid = 1;
document.getElementById("cy").ondblclick = function(e) {
cy.add({ data: { id: nid }, renderedPosition: { x: e.x, y: e.y } });
nid++;
};
Then I wrote this function which should be called whenever user clicks a node. It works whenever user clicks on a node which I added manually when initializing the cytoscape but the problem is its not working for the nodes which user added by double clicking.
cy.$('node').on('click', function (e) {
console.log('node clicked: ', e.target.id());
});
Any idea what am I doing wrong?
I have a working version of your code here:
var cy = (window.cy = cytoscape({
container: document.getElementById("cy"),
boxSelectionEnabled: false,
autounselectify: true,
style: [{
selector: "node",
css: {
"label": "data(id)",
"text-valign": "center",
"text-halign": "center",
"background-color": "data(faveColor)"
}
},
{
selector: "edge",
css: {
"curve-style": "bezier",
"control-point-step-size": 40,
"target-arrow-shape": "triangle"
}
}
],
elements: {
nodes: [{
data: {
id: "a",
faveColor: "#2763c4"
}
},
{
data: {
id: "b",
faveColor: "#37a32d"
}
},
{
data: {
id: "c",
faveColor: "#37a32d"
}
}
],
edges: [{
data: {
source: "a",
target: "b"
}
},
{
data: {
source: "a",
target: "c"
}
}
]
},
layout: {
name: "dagre"
}
}));
cy.ready(function() {
cy.dblclick();
});
var nid = 0;
cy.bind('dblclick', function(evt) {
cy.add({
group: 'nodes',
data: {
id: nid,
faveColor: 'red'
},
position: {
x: evt.x,
y: evt.y
}
});
nid++;
});
cy.bind('click', 'node', function(evt) {
console.log('node clicked: ', evt.target.id());
});
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
float: right;
position: absolute;
}
<html>
<head>
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<script src="https://unpkg.com/cytoscape#3.3.0/dist/cytoscape.min.js">
</script>
<!-- cyposcape dagre -->
<script src="https://unpkg.com/dagre#0.7.4/dist/dagre.js"></script>
<script src="https://cdn.rawgit.com/cytoscape/cytoscape.js-dagre/1.5.0/cytoscape-dagre.js"></script>
<script src="https://unpkg.com/cytoscape-dblclick/dist/index.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>
I used the cy.on()/cy.bind() method, that seems to work with newly added nodes :)
I have a cytoscape.js model, where edges between nodes represent different relations.
I want to have possibility to display something like round shape or button in the middle of the edge, where user could click and get popup to change the relationship type.
So far I see in base package there is no option to display round shape.
I am using dagre layout, and this is my current edge configuration:
{
selector: "edge",
style: {
width: 1,
"font-size": "20px",
//opacity: "0.5",
label: "data(type)",
color: function(ele) {
return getEdgeColor(ele.data("type"));
},
"line-color": function(ele) {
return getEdgeColor(ele.data("type"));
},
"target-arrow-color": function(ele) {
return getEdgeColor(ele.data("type"));
},
"curve-style": "straight",
"target-arrow-shape": "triangle"
}
},
Could you recommend me any easy solution?
I have a workaround for this (the editation works on the whole edge, the dot is just for the looks:
var cy = window.cy = cytoscape({
container: document.getElementById('cy'),
style: [{
selector: 'node',
css: {
'content': 'data(id)',
'text-valign': 'center',
'text-halign': 'center',
'height': '60px',
'width': '60px'
}
},
{
selector: 'edge',
css: {
'font-size': "40px",
'label': "\u2022",
'curve-style': 'bezier',
'target-arrow-shape': 'data(arrow)'
}
}
],
elements: {
nodes: [{
data: {
id: 'n0'
}
},
{
data: {
id: 'n1'
}
},
{
data: {
id: 'n2'
}
},
{
data: {
id: 'n3'
}
}
],
edges: [{
data: {
source: 'n0',
target: 'n1',
arrow: 'triangle'
}
},
{
data: {
source: 'n1',
target: 'n2',
arrow: 'triangle'
}
},
{
data: {
source: 'n1',
target: 'n3',
arrow: 'triangle'
}
},
]
},
layout: {
name: 'concentric',
minNodeSpacing: 140,
}
});
cy.cxtmenu({
selector: 'edge',
menuRadius: 90,
commands: [{
content: 'Direction',
select: function(edge) {
edge.move({
source: edge.target().id(),
target: edge.source().id()
});
}
}]
});
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
left: 0;
top: 0;
float: left;
position: absolute;
}
.cxtmenu-disabled {
opacity: 0.333;
}
<html>
<head>
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<script src="https://cdn.jsdelivr.net/npm/cytoscape#3.10.1/dist/cytoscape.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/cytoscape-cxtmenu#3.1.1/cytoscape-cxtmenu.min.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>
I use the ctx-menu extension here (right click on edge to open menu) and the dot is just an unicode character.
I want to make an animation for each edge that I'm visiting sequentially, but when I try to do that the animation is done for all the edges at the same time, how can I fix this?
cy.edges().forEach(e => {
let src = parseInt(e.source().data('id'))
let trg = parseInt(e.target().data('id'))
let w = parseInt(e.style('label'))
e.animation({
'style': {'line-color': '#FF0000'}},
{'duration': '2000'}).play()
}
As you can see here, cytoscape provided this demo for your problem:
var cy = cytoscape({
container: document.getElementById('cy'),
boxSelectionEnabled: false,
autounselectify: true,
style: cytoscape.stylesheet()
.selector('node')
.style({
'content': 'data(id)'
})
.selector('edge')
.style({
'curve-style': 'bezier',
'target-arrow-shape': 'triangle',
'width': 4,
'line-color': '#ddd',
'target-arrow-color': '#ddd'
})
.selector('.highlighted')
.style({
'background-color': '#61bffc',
'line-color': '#61bffc',
'target-arrow-color': '#61bffc',
'transition-property': 'background-color, line-color, target-arrow-color',
'transition-duration': '0.5s'
}),
elements: {
nodes: [{
data: {
id: 'a'
}
},
{
data: {
id: 'b'
}
},
{
data: {
id: 'c'
}
},
{
data: {
id: 'd'
}
},
{
data: {
id: 'e'
}
}
],
edges: [{
data: {
id: 'a"e',
weight: 1,
source: 'a',
target: 'e'
}
},
{
data: {
id: 'ab',
weight: 3,
source: 'a',
target: 'b'
}
},
{
data: {
id: 'be',
weight: 4,
source: 'b',
target: 'e'
}
},
{
data: {
id: 'bc',
weight: 5,
source: 'b',
target: 'c'
}
},
{
data: {
id: 'ce',
weight: 6,
source: 'c',
target: 'e'
}
},
{
data: {
id: 'cd',
weight: 2,
source: 'c',
target: 'd'
}
},
{
data: {
id: 'de',
weight: 7,
source: 'd',
target: 'e'
}
}
]
},
layout: {
name: 'breadthfirst',
directed: true,
roots: '#a',
padding: 10
}
});
var bfs = cy.elements().bfs('#a', function() {}, true);
var i = 0;
var highlightNextEle = function() {
if (i < bfs.path.length) {
bfs.path[i].addClass('highlighted');
i++;
setTimeout(highlightNextEle, 1000);
}
};
// kick off first highlight
highlightNextEle();
body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
float: right;
position: absolute;
}
<html>
<head>
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<script src="https://unpkg.com/cytoscape#3.3.0/dist/cytoscape.min.js">
</script>
</head>
<body>
<div id="cy"></div>
</body>
</html>
So instead of going for the bfs path, you can define your own path and use the higlighting function of the demo.
Good luck