d3 transition with percentages using styleTween - javascript

I have a treemap rendered with d3. Since I want to be responsive and economical (not running js if I do not really have to) I am using percentages for the divs. But the transitions are some kind of wired using percentages. After reading this issue I have tried several styleTweens but I do not have any luck ...
How can I use transitions for percentage values in d3?
Here is a fiddle of the below code: http://jsfiddle.net/0z7p68wb/ (just click somewhere on the treemap to start the animation)
var target = d3.select("#target")
render = function(data, oldData) {
// our custom d3 code
console.log("render!", data, oldData);
// draw rectangles
var margin = {margin: 0.2, padding: 2},
width = 100 - margin.margin * 2,
height = 100 - margin.margin * 2;
var treemap = d3.layout.treemap()
.size([100, 100])
//.sticky(true)
.value(function(d) { return d.size; });
// bind data
var nodes = target.datum(data)
.selectAll(".node")
.data(treemap.nodes);
// transform existing nodes
if (data !== oldData)
nodes.transition()
.duration(1500)
.call(position);
// append new nodes
nodes.enter().append("div")
.attr("class", "node")
.style("position", "absolute")
.style("display", function(d,i) { return i==0 ? "none" : "block"})
.style("background-color", "silver")
.call(position)
;
// remove obsolete nodes
nodes.exit().remove();
// set position of nodes
function position() {
this.style("left", function(d) { return d.x + "%"; })
.style("top", function(d) { return d.y + "%"; })
.style("width", function(d) { return Math.max(0, d.dx) + "%"; })
.style("height", function(d) { return Math.max(0, d.dy) + "%"; })
}
}
tree1 = {
name: "tree",
children: [
{ name: "Word-wrapping comes for free in HTML", size: 16000 },
{ name: "animate makes things fun", size: 8000 },
{ name: "data data everywhere...", size: 5220 },
{ name: "display something beautiful", size: 3623 },
{ name: "flex your muscles", size: 984 },
{ name: "physics is religion", size: 6410 },
{ name: "query and you get the answer", size: 2124 }
]
};
tree2 = {
name: "tree",
children: [
{ name: "Word-wrapping comes for free in HTML", size: 8000 },
{ name: "animate makes things fun", size: 10000 },
{ name: "data data everywhere...", size: 2220 },
{ name: "display something beautiful", size: 6623 },
{ name: "flex your muscles", size: 1984 },
{ name: "physics is religion", size: 3410 },
{ name: "query and you get the answer", size: 2124 }
]
};
tree = tree1;
render(tree, tree);
d3.select("#target").on("click", function(){
console.log("click");
tree = tree == tree1 ? tree2 : tree1;
render(tree, {});
});

Got it!
// transform existing nodes
if (data !== oldData)
nodes.transition()
.duration(1500)
.call(position)
.styleTween('left', function(d,i,a){
return d3.interpolateString(this.style.left, d.x + "%")
})
.styleTween('top', function(d,i,a){;
return d3.interpolateString(this.style.top, d.y + "%")
})
.styleTween('width', function(d,i,a){;
return d3.interpolateString(this.style.width, Math.max(0, d.dx) + "%")
})
.styleTween('height', function(d,i,a){;
return d3.interpolateString(this.style.height, Math.max(0, d.dy) + "%")
})
;

Related

Programmatically open nested, collapsed (hidden) nodes in d3.js v6

A follow-on question / issue to
Programmatically open nested, collapsed (hidden) node in d3.js v4
updated for d3.js v6. The issue is the loading of external JSON data in the d3 collapsible menu visualization, and the programmatic access of nested (collapsed, hidden) nodes.
It appears that "treeData", which is the loaded Object, is not being delivered.
Uncaught ReferenceError: treeData is not defined
JSFiddle: https://jsfiddle.net/vstuart/kant09hm/6/
JSFiddle (updated with answer): https://jsfiddle.net/vstuart/kant09hm/9/
ontology_for_d3_test.json
gist: https://gist.github.com/victoriastuart/abbcf355bf1590be02f6dec297be2706
{ "name": "Root",
"children": [
{ "name": "Culture",
"children": [
{ "name": "Entertainment" },
{ "name": "LGBT" }
]
},
{ "name": "Nature",
"id": "nature",
"children": [
{ "name": "Earth",
"id": "earth",
"children": [
{ "name": "Environment" },
{ "name": "Geography" },
{ "name": "Geology" },
{ "name": "Geopolitical" },
{ "name": "Geopolitical - Countries" },
{ "name": "Geopolitical - Countries - Canada" },
{ "name": "Geopolitical - Countries - United States" },
{ "name": "Nature" },
{ "name": "Regions" }
]
},
{ "name": "Cosmos" },
{ "name": "Outer space" }
]
},
{ "name": "Humanities",
"children": [
{ "name": "History" },
{ "name": "Philosophy" },
{ "name": "Philosophy - Theology" }
]
},
{ "name": "Miscellaneous",
"children": [
{ "name": "Wikipedia",
"url": "https://wikipedia.com" },
{ "name": "Example.com",
"url": "https://example.com" }
]
},
{ "name": "Science",
"children": [
{ "name": "Biology" },
{ "name": "Health" },
{ "name": "Health - Medicine" },
{ "name": "Sociology" }
]
},
{ "name": "Technology",
"children": [
{ "name": "Computers" },
{ "name": "Computers - Hardware" },
{ "name": "Computers - Software" },
{ "name": "Computing" },
{ "name": "Computing - Programming" },
{ "name": "Internet" },
{ "name": "Space" },
{ "name": "Transportation" }
]
},
{ "name": "Society",
"children": [
{ "name": "Business" },
{ "name": "Economics" },
{ "name": "Economics - Business" },
{ "name": "Economics - Capitalism" },
{ "name": "Economics - Commerce" },
{ "name": "Economics - Finance" },
{ "name": "Politics" },
{ "name": "Public services" }
]
}
]
}
index.html [standalone working copy of JSFiddle; edit: updated with answer]
<!DOCTYPE html>
<html lang="en-US" xmlns:xlink="http://www.w3.org/1999/xlink">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<style>
.node {
cursor: pointer;
}
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 3px;
}
.node text {
font: 12px sans-serif;
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 2px;
}
#includedContent {
position: static !important;
display: inline-block;
}
#d3_object {
width: 75%;
margin: 0.5rem 0.5rem 1rem 0.25rem;
}
</style>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
<!-- <script src="https://d3js.org/d3.v4.min.js"></script> -->
<!-- <script src="https://d3js.org/d3.v5.min.js"></script> -->
<script src="https://d3js.org/d3.v6.min.js"></script>
</head>
<body>
<div id="d3_object">
<object>
<p>apple</p>
<div id="includedContent"></div>
<p>banana</p>
</object>
</div>
<script type="text/javascript">
// Set the dimensions and margins of the diagram
var margin = {top: 20, right: 90, bottom: 30, left: 90},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// ----------------------------------------
// PAN, ZOOM:
// https://www.d3-graph-gallery.com/graph/interactivity_zoom.html
// var svg = d3.select("body").append("svg")
var svg = d3.select("#includedContent").append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
// d3.js v4, v5:
// .call(d3.zoom().on("zoom", function () {
// svg.attr("transform", d3.event.transform)
// d3.js v6:
.call(d3.zoom().on("zoom", function (event) {
svg.attr("transform", event.transform)
}))
.append("g")
.attr("transform", "translate("
+ margin.left + "," + margin.top + ")");
// ----------------------------------------
var i = 0,
duration = 250,
root;
// declares a tree layout and assigns the size
var treemap = d3.tree().size([height, width]);
// ----------------------------------------
// LOAD THE EXTERNAL DATA:
//d3.json("https://gist.githubusercontent.com/mbostock/4339083/raw/9585d220bef18a0925922f4d384265ef767566f5/flare.json", function(error, treeData) {
// ----------------------------------------
// d3.js v4 [ https://d3js.org/d3.v4.min.js ]
/*
d3.json("https://gist.githubusercontent.com/victoriastuart/abbcf355bf1590be02f6dec297be2706/raw/2418e5f6b7626b3c5842665a51b7d0d27f74e909/ontology_for_d3_test.json", function(error, treeData) {
if (error) throw error;
// Assigns parent, children, height, depth
root = d3.hierarchy(treeData, function(d) { return d.children; });
root.x0 = height / 2;
root.y0 = 0;
// Collapse after the second level
root.children.forEach(collapse);
update(root);
});
*/
// ----------------------------------------
// ----------------------------------------
// d3.js v5 https://d3js.org/d3.v5.min.js
// https://gist.github.com/d3noob/1a96af738c89b88723eb63456beb6510
// d3.js v6 https://d3js.org/d3.v5.min.js
// https://gist.github.com/d3noob/9de0768412ac2ce5dbec430bb1370efe
// https://stackoverflow.com/questions/49768165/code-within-d3-json-callback-is-not-executed
// https://www.tutorialsteacher.com/d3js/loading-data-from-file-in-d3js
// https://stackoverflow.com/questions/47664292/d3-json-method-doesnt-return-my-data-array
// ----------------------------------------
// LOAD EXTERNAL JSON DATA FILE (via PROMISE):
// https://stackoverflow.com/questions/49768165/code-within-d3-json-callback-is-not-executed
// https://stackoverflow.com/questions/49534470/d3-js-v5-promise-all-replaced-d3-queue
// https://www.roelpeters.be/explaining-promises-in-d3-js-the-what-and-the-why/
//
// https://stackoverflow.com/questions/14220321/how-do-i-return-the-response-from-an-asynchronous-call
// This callback function should return the "treeData" Object:
d3.json("https://gist.githubusercontent.com/victoriastuart/abbcf355bf1590be02f6dec297be2706/raw/2418e5f6b7626b3c5842665a51b7d0d27f74e909/ontology_for_d3_test.json")
.then(function(treeData) {
console.log('[d3.js] treeData:', treeData, '| type:', typeof(treeData), '| length:', treeData['children'].length)
for (let i = 0; i < treeData['children'].length; i++) {
console.log('node:', treeData['children'][i].name);
if ( treeData['children'][i].id !== undefined ) {
console.log(' id:', treeData['children'][i].id);
}
}
// ASSIGN PARENT, CHILDREN, HEIGHT, DEPTH:
root = d3.hierarchy(treeData, function(d) { return d.children; });
root.x0 = height / 2;
root.y0 = 0;
// COLLAPSE AFTER THE SECOND LEVEL:
root.children.forEach(collapse);
update(root);
// ----------------------------------------
// Per answers at
// https://stackoverflow.com/questions/67527258/programmatically-open-nested-collapsed-hidden-node-in-d3-js-v4/67530786?noredirect=1#comment119390942_67530786
// https://jsfiddle.net/mrovinsky/ujwsd7qz/
// https://stackoverflow.com/questions/67549992/accessing-promised-data-in-d3-js-v6-programmatically-opening-nested-collapsed-n
const findNodeAncestors = (root, name) => {
if (root.name === name) {
return [name];
}
if (root.children)
for (let i = 0; i < root.children.length; i++) {
const chain = findNodeAncestors(root.children[i], name);
if (chain) {
chain.push(root.name);
return chain;
}
}
return null;
};
const chain = findNodeAncestors(treeData, 'Earth');
if (chain) {
console.log('[d3.js] chain:', chain)
for (let i = chain.length - 1; i >= 0; i--) {
const node = d3.select(`.node[node-name="${chain[i]}"]`);
const nodeData = node.datum();
if (!nodeData.children && nodeData.data.children) {
node.node().dispatchEvent(new Event('click'));
}
}
}
else {
console.log('[d3.js] "chain" is either "null" or "undefined"')
}
// ----------------------------------------
})
// IF (ERROR) THROW ERROR:
.catch(function(error) {
console.log('[d3.js] JSON callback function error')
if (error) throw error;
});
// ----------------------------------------
// COLLAPSE THE NODE AND ALL IT'S CHILDREN:
function collapse(d) {
if(d.children) {
d._children = d.children
d._children.forEach(collapse)
d.children = null
}
}
function update(source) {
// ASSIGNS THE X AND Y POSITION FOR THE NODES:
var treeData = treemap(root);
// COMPUTE THE NEW TREE LAYOUT:
var nodes = treeData.descendants(),
links = treeData.descendants().slice(1);
// NORMALIZE FOR FIXED-DEPTH:
nodes.forEach(function(d){ d.y = d.depth * 180});
// *************** NODES SECTION ***************
// Update the nodes...
var node = svg.selectAll('g.node')
.data(nodes, function(d) {return d.id || (d.id = ++i); });
// ENTER ANY NEW MODES AT THE PARENT'S PREVIOUS POSITION:
var nodeEnter = node.enter().append('g')
.attr('class', 'node')
// --------------------------------------------
// Per answer at
// https://stackoverflow.com/questions/67480339/programmatically-opening-d3-js-v4-collapsible-tree-nodes
.attr('node-name', d => d.data.name)
// --------------------------------------------
.attr("transform", function(d) {
return "translate(" + source.y0 + "," + source.x0 + ")";
})
.on('click', click);
// ADD CIRCLE FOR THE NODES:
nodeEnter.append('circle')
.attr('class', 'node')
.attr('r', 1e-6)
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
});
// ADD LABELS FOR THE NODES:
nodeEnter.append('text')
.attr("dy", ".35em")
.attr("x", function(d) {
return d.children || d._children ? -13 : 13;
})
.attr("text-anchor", function(d) {
return d.children || d._children ? "end" : "start";
})
.text(function(d) { return d.data.name; });
// UPDATE:
var nodeUpdate = nodeEnter.merge(node);
// TRANSITION TO THE PROPER POSITION FOR THE NODE:
nodeUpdate.transition()
.duration(duration)
.attr("transform", function(d) {
return "translate(" + d.y + "," + d.x + ")";
});
// UPDATE THE NODE ATTRIBUTES AND STYLE:
nodeUpdate.select('circle.node')
.attr('r', 10)
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
})
.attr('cursor', 'pointer');
// Remove any exiting nodes
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) {
return "translate(" + source.y + "," + source.x + ")";
})
.remove();
// ON EXIT REDUCE THE NODE CIRCLES SIZE TO 0:
nodeExit.select('circle')
.attr('r', 1e-6);
// ON EXIT REDUCE THE OPACITY OF TEXT LABELS:
nodeExit.select('text')
.style('fill-opacity', 1e-6);
// *************** LINKS SECTION ***************
// UPDATE THE LINKS:
var link = svg.selectAll('path.link')
.data(links, function(d) { return d.id; });
// ENTER ANY NEW LINKS AT THE PARENT'S PREVIOUS POSITION:
var linkEnter = link.enter().insert('path', "g")
.attr("class", "link")
.attr('d', function(d){
var o = {x: source.x0, y: source.y0}
return diagonal(o, o)
});
// UPDATE:
var linkUpdate = linkEnter.merge(link);
// TRANSITION BACK TO THE PARENT ELEMENT POSITION:
linkUpdate.transition()
.duration(duration)
.attr('d', function(d){ return diagonal(d, d.parent) });
// REMOVE ANY EXITING LINKS:
var linkExit = link.exit().transition()
.duration(duration)
.attr('d', function(d) {
var o = {x: source.x, y: source.y}
return diagonal(o, o)
})
.remove();
// STORE THE OLD POSITIONS FOR TRANSITION:
nodes.forEach(function(d){
d.x0 = d.x;
d.y0 = d.y;
});
// CREATE A CURVED (DIAGONAL) PATH FROM PARENT TO THE CHILD NODES:
function diagonal(s, d) {
path = `M ${s.y} ${s.x}
C ${(s.y + d.y) / 2} ${s.x},
${(s.y + d.y) / 2} ${d.x},
${d.y} ${d.x}`
return path
}
// ----------------------------------------
// TOGGLE CHILDREN ON CLICK:
// function click(d) {
// ***** New in d3.js v6: *****
function click(event, d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else if (d._children) {
d.children = d._children;
d._children = null;
} else {
// This was a leaf node, so redirect.
console.log('d:', d)
console.log('d.data:', d.data)
console.log('d.name:', d.name)
console.log('d.data.name:', d.data.name)
console.log('urlMap[d.data.name]:', urlMap[d.data.name])
window.location = d.data.url;
// window.open("https://www.example.com", "_self");
}
update(d);
}
// ----------------------------------------
}
// ----------------------------------------
// Per answer at
// https://stackoverflow.com/questions/67480339/programmatically-opening-d3-js-v4-collapsible-tree-nodes
///*
setTimeout(() => {
//const node = d3.select('.node[node-name="Earth"]').node();
//const node = d3.select('.node[node-name="Nature"]').node();
const node = d3.select('.node[node-name="Society"]').node();
console.log('[setTimeout()] NODE: ', node);
node.dispatchEvent(new Event('click'));
}, 2500);
//*/
// ----------------------------------------
// ----------------------------------------
// Per answer at
// https://stackoverflow.com/questions/67527258/programmatically-open-nested-collapsed-hidden-node-in-d3-js-v4/67530786?noredirect=1#comment119390942_67530786
// https://jsfiddle.net/mrovinsky/ujwsd7qz/
const findNodeAncestors = (root, name) => {
if (root.name === name) {
return [name];
}
if (root.children)
for (let i = 0; i < root.children.length; i++) {
const chain = findNodeAncestors(root.children[i], name);
if (chain) {
chain.push(root.name);
return chain;
}
}
return null;
};
const chain = findNodeAncestors(treeData, 'Earth');
// Console: "Uncaught ReferenceError: treeData is not defined"
for (let i = chain.length - 1; i >= 0; i--) {
const node = d3.select(`.node[node-name="${chain[i]}"]`);
const nodeData = node.datum();
if (!nodeData.children && nodeData.data.children) {
node.node().dispatchEvent(new Event('click'));
}
}
// ----------------------------------------
</script>
</body>
</html>
The treeData variable can be used only in the scope of the function where it's defined as an argument:
d3.json("https://...json")
.then(function(treeData) {
// Scope of the function, treeData can be used here
});
// Out of scope, treeData is not defined
The solution is to move the block that starts with const findNodeAncestors... (~25 lines) inside the function body (right after the last occurence of update with a closing brace):
update(d);
}
// ----------------------------------------
// HERE
}

Nest same object n times in array

Here is an example object array I'd like to transform into a much more complex structure:
[
{
"name": "Blue (3/8)"
},
{
"name": "Green (5/8)"
}
]
To give some context, I am trying to create a visual tree diagram demonstrating the probabilities of different-colored marbles being drawn out of a bag (that's why you see a number followed by a fraction). Below is the statistical-type tree I'm referring to.
I need to repeat adding this same array into an object in a nested format, assigning it to a key titled "children". This needs to be done n amount of times (based on the number of marble draws). The below object would be a result of nesting the same object array 3 times and then it would make a nice tree (using d3.js):
var treeData =
{
"children": [ // Level 1
{
"name": "Blue (3/8)",
"children": [ // Level 2
{ "name": "Blue (3/8)",
"children": [ // Level 3
{ "name": "Blue (3/8)" },
{ "name": "Green (5/8)" }
]
},
{ "name": "Green (5/8)",
"children": [ // Level 3
{ "name": "Blue (3/8)" },
{ "name": "Green (5/8)" }
]
}
]
},
{
"name": "Green (5/8)",
"children": [ // Level 2
{ "name": "Blue (3/8)",
"children": [ // Level 3
{ "name": "Blue (3/8)" },
{ "name": "Green (5/8)" }
]
},
{ "name": "Green (5/8)",
"children": [ // Level 3
{ "name": "Blue (3/8)" },
{ "name": "Green (5/8)" }
]
}
]
}
]
};
// set the dimensions and margins of the diagram
var margin = {top: 20, right: 90, bottom: 30, left: 90},
width = 660 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// declares a tree layout and assigns the size
var treemap = d3.tree()
.size([height, width]);
// assigns the data to a hierarchy using parent-child relationships
var nodes = d3.hierarchy(treeData, function(d) {
return d.children;
});
// maps the node data to the tree layout
nodes = treemap(nodes);
// append the svg object to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom),
g = svg.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
// adds the links between the nodes
var link = g.selectAll(".link")
.data( nodes.descendants().slice(1))
.enter().append("path")
.attr("class", "link")
.attr("d", function(d) {
return "M" + d.y + "," + d.x
+ "C" + (d.y + d.parent.y) / 2 + "," + d.x
+ " " + (d.y + d.parent.y) / 2 + "," + d.parent.x
+ " " + d.parent.y + "," + d.parent.x;
});
// adds each node as a group
var node = g.selectAll(".node")
.data(nodes.descendants())
.enter().append("g")
.attr("class", function(d) {
return "node" +
(d.children ? " node--internal" : " node--leaf"); })
.attr("transform", function(d) {
return "translate(" + d.y + "," + d.x + ")"; });
// adds the circle to the node
node.append("circle")
.attr("r", 10);
// adds the text to the node
node.append("text")
.attr("dy", ".35em")
.attr("x", function(d) { return d.children ? -13 : 13; })
.style("text-anchor", function(d) {
return d.children ? "end" : "start"; })
.text(function(d) { return d.data.name; });
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 3px;
}
.node text { font: 12px sans-serif; }
.node--internal text {
text-shadow: 0 1px 0 #fff, 0 -1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff;
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 2px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://d3js.org/d3.v5.min.js"></script>
This happens to be the format of the object needed for d3.js to display the desired output in a tree. Here is the closest thing I could salvage to get my desired output:
var objectArray = [{
name: "Blue (5/8)"
}, {
name: "Green (3/8)"
}, {
name: "Blue (5/8)"
}, {
name: "Green (3/8)"
}, {
name: "Blue (5/8)"
}, {
name: "Green (3/8)"
}];
var newArr = objectArray.reverse().reduce((acc, item) => {
return [{
...item,
children: acc
}]
});
console.log(newArr);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
You could take a simple mapping with a look for the wanted depth.
const
create = (data, depth) => data.map((o, i) => ({
name: `${o.name} (${o.count}/${o.total})`,
...(depth > 1 ? { children: create(data.map(({ name, total, count }, j) => ({ name, count: count - (i === j), total: total - 1 })), depth - 1) } : {})
})),
data = [{ name: "Blue", count: 3, total: 8 }, { name: "Green", count: 5, total: 8 }],
result = create(data, 3);
console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }
You can use a recursive function:
const probabilityDrawingMarblesWithoutReplacement = ( marbles, remainingDraws ) => {
let totalMarbles = 0;
for ( let colour in marbles )
{
totalMarbles += Math.max( marbles[colour], 0 );
}
const output = [];
for ( let colour in marbles )
{
const amount = marbles[colour];
if ( amount <= 0 )
{
continue;
}
const colourOutput = {
"name": `${colour} (${amount}/${totalMarbles})`
}
if ( remainingDraws > 1 )
{
const remainingMarbles = Object.assign( {}, marbles );
remainingMarbles[colour]--;
colourOutput.children = probabilityDrawingMarblesWithoutReplacement( remainingMarbles, remainingDraws - 1 );
}
output.push( colourOutput );
}
return output;
}
console.log( probabilityDrawingMarblesWithoutReplacement( {"blue":3,"green":5}, 4 ) );
.as-console-wrapper { max-height: 100% !important; top: 0; }

Fix the position of one bubble in d3 pack layout

I'm building a bubble chart using D3 js (v5), to show some results of a research.
Basically I have a JSON with the total as the root and the children as each result.
One of the results must be highlighted and be positioned at the top center of the circle.
I managed to show this result there, but the other bubbles are overlapping (probably because I changed the position provided by the D3 hierarchy algorithm).
Is it possible to programmatically fix the position of only one bubble (the blue bubble in my example) and reposition the other bubbles, in order to not let them overlap each other?
JFiddle
const data = {
name: 'Total',
size: 1999999,
children: [{
name: 'Result A',
size: 69936,
},
{
name: 'Result b',
size: 45000,
},
{
name: 'Result C',
size: 250000,
},
{
name: 'Result D',
size: 426791,
},
{
name: 'Result E',
size: 56000,
},
{
name: 'Result F',
size: 61050,
},
{
name: 'Result G',
size: 30000,
},
],
};
// Fix this bubble at the top
const FIXED_BUBBLE_NAME = 'Result b';
const GREEN = '#90E0C2';
const BLUE = '#73A1FC';
const GRAPH_DIMENSIONS = {
WIDTH: 234,
HEIGHT: 234,
PADDING: 10,
};
const buildDataTree = () => {
const packLayout = d3
.pack()
.size([
GRAPH_DIMENSIONS.WIDTH,
GRAPH_DIMENSIONS.HEIGHT,
])
.padding(GRAPH_DIMENSIONS.PADDING);
const rootNode = d3
.hierarchy(data)
.sum((d) => d.size)
.sort((a, b) => {
return b.value - a.value;
})
return packLayout(rootNode);
};
const getSvgRoot = () => {
return d3
.select('#graph-container')
.append('svg')
.attr('id', 'graph-container-svg')
.attr('width', GRAPH_DIMENSIONS.WIDTH + GRAPH_DIMENSIONS.PADDING)
.attr('height', GRAPH_DIMENSIONS.HEIGHT + GRAPH_DIMENSIONS.PADDING)
.style('overflow', 'visible');
};
const rootNodeDataTree = buildDataTree();
const svgRoot = getSvgRoot();
const node = svgRoot
.selectAll('g')
.data(
d3
.nest()
.key((d) => d.id)
.entries(rootNodeDataTree.descendants()),
)
.join('g')
.selectAll('g')
.data(d => d.values)
.join('g');
node
.append('circle')
.attr('r', (d) => d.r)
.attr('cx', (d) => {
// if it is the selected bubble it must be at the center
if (d.data.name === FIXED_BUBBLE_NAME) {
return GRAPH_DIMENSIONS.WIDTH / 2 + d.r / 2;
}
return d.x + GRAPH_DIMENSIONS.PADDING;
})
.attr('cy', (d) => {
// if it is the selected bubble it must be at the center
if (d.data.name === FIXED_BUBBLE_NAME) {
return d.r + GRAPH_DIMENSIONS.PADDING * 2;
}
return d.y + GRAPH_DIMENSIONS.PADDING;
})
.attr('cursor', 'pointer')
.attr('stroke', (d) => (d.children ? GREEN : ''))
.attr('stroke-width', (d) => (d.children ? 2 : 0))
.attr('fill-opacity', (d) => (d.children ? 0.24 : 1))
.attr('fill', (d) => {
if (d.data.name === FIXED_BUBBLE_NAME) {
return BLUE;
} else {
return GREEN;
}
})
<script src="https://d3js.org/d3.v5.min.js"></script>
<div id="graph-container">
</div>
Here is a fiddle with my suggestion: https://jsfiddle.net/9r8kt1e0/1/
The force simulation code is:
const simulation = d3
.forceSimulation(allNodes.filter( (d) => d.depth !== 0))
.force("collide",d3.forceCollide(d => { return d.r;}))
.force("charge", d3.forceManyBody().strength(0))
.force("center", d3.forceCenter(GRAPH_DIMENSIONS.WIDTH/2+10, GRAPH_DIMENSIONS.HEIGHT/2))
.force("bound", (alpha) => {
for (let i = 0; i < allNodes.length; ++i) {
n = allNodes[i];
n.x = pythag(n.r, n.y, n.x);
n.y = pythag(n.r, n.x, n.y);
}
})
.stop();
for (var i = 0; i < 100; ++i) {
simulation.tick();
}
Notice that we are passing a custom force called bound, this one should take care of keeping the nodes inside the parent circle.
That solves the overlapping, you would have to play a little with the forces according to your needs.
As per the documentation, a force is a function that modifies the nodes' position, you can have multiple forces, so hopefully, playing a little bit with the forces should solve your problem.
I hope it helps.

How to use D3 from external file

I am trying to create a simple tree map with D3.js but want to include the d3 code from an external file. I have 2 files, treemap.js and treemap.html. However, the treemap is not displaying and there is no errors popping up in the console. Am I referencing the d3 file correctly? Thank you.
This is the code inside the treemap.js
var tree = {
name: "tree",
children: [
{ name: "Word-wrapping comes for free in HTML", size: 16000 },
{ name: "animate makes things fun", size: 8000 },
{ name: "data data everywhere...", size: 5220 },
{ name: "display something beautiful", size: 3623 },
{ name: "flex your muscles", size: 984 },
{ name: "physics is religion", size: 6410 },
{ name: "query and you get the answer", size: 2124 }
]
};
var width = innerWidth-40,
height = innerHeight-40,
color = d3.scale.category20c(),
div = d3.select("#treemap").append("div")
.style("position", "relative");
var treemap = d3.layout.treemap()
.size([width, height])
.sticky(true)
.value(function(d) { return d.size; });
var node = div.datum(tree).selectAll(".node")
.data(treemap.nodes)
.enter().append("div")
.attr("class", "node")
.call(position)
.style("background-color", function(d) {
return d.name == 'tree' ? '#fff' : color(d.name); })
.append('div')
.style("font-size", function(d) {
// compute font size based on sqrt(area)
return Math.max(20, 0.18*Math.sqrt(d.area))+'px'; })
.text(function(d) { return d.children ? null : d.name; });
function position() {
this.style("left", function(d) { return d.x + "px"; })
.style("top", function(d) { return d.y + "px"; })
.style("width", function(d) { return Math.max(0, d.dx - 1) + "px"; })
.style("height", function(d) { return Math.max(0, d.dy - 1) + "px"; });
}
And this is the code inside the body tag inside the treemap.html
<body>
<div id="treemap"></div>
<script src="d3.v3.js"></script>
<script src="treemap.js"></script>
</body>

d3 - dougnut bubble pie chart

I am trying to create a merged pie/bubble chart.
-- looking for a starting bubble chart base - maybe this one.
http://jsfiddle.net/xsafy/
^ need to cluster these bubbles - maybe sub bubbles per slice.
//bubble chart base.
http://jsfiddle.net/NYEaX/1450/
(function() {
var diameter = 250;
var svg = d3.select('#graph').append('svg')
.attr('width', diameter)
.attr('height', diameter);
var bubble = d3.layout.pack()
.size([diameter, diameter])
.value(function(d) {
return d.size;
})
.padding(3);
var color = d3.scale.ordinal()
.domain(["Lorem ipsum", "dolor sit", "amet", "consectetur", "adipisicing"])
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56"]);
function randomData() {
var data1 = {
"children": [
{
name: "AA",
className: "aa",
size: 170
},
{
name: "BB",
className: "bb",
size: 393
},
{
name: "CC",
className: "cc",
size: 293
},
{
name: "DD",
className: "dd",
size: 89
}
]
};
var data2 = {
"children": [
{
name: "AA",
className: "aa",
size: 120
},
{
name: "BB",
className: "bb",
size: 123
},
{
name: "CC",
className: "cc",
size: 193
},
{
name: "DD",
className: "dd",
size: 289
}
]
};
var j = Math.floor((Math.random() * 2) + 1);
console.log("j", j);
if (j == 1) {
return data1;
} else {
return data2;
}
}
change(randomData());
d3.select(".randomize")
.on("click", function() {
change(randomData());
});
function change(data) {
console.log("data", data);
// generate data with calculated layout values
var nodes = bubble.nodes(data)
.filter(function(d) {
return !d.children;
}); // filter out the outer bubble
var vis = svg.selectAll('circle')
.data(nodes);
vis.enter()
.insert("circle")
.attr('transform', function(d) {
return 'translate(' + d.x + ',' + d.y + ')';
})
.attr('r', function(d) {
return d.r;
})
.style("fill", function(d) {
return color(d.name);
})
.attr('class', function(d) {
return d.className;
});
vis
.transition().duration(1000)
vis.exit()
.remove();
};
})();
//doughnut chart base.
derived from these examples.
http://bl.ocks.org/dbuezas/9306799
https://bl.ocks.org/mbostock/1346410
http://jsfiddle.net/NYEaX/1452/
var svg = d3.select("#graph")
.append("svg")
.append("g")
svg.append("g")
.attr("class", "slices");
svg.append("g")
.attr("class", "labels");
svg.append("g")
.attr("class", "lines");
var width = 560,
height = 450,
radius = Math.min(width, height) / 2;
var pie = d3.layout.pie()
.sort(null)
.value(function(d) {
return d.value;
});
var arc = d3.svg.arc()
.outerRadius(radius * 0.85)
.innerRadius(radius * 0.83);
var outerArc = d3.svg.arc()
.innerRadius(radius * 0.9)
.outerRadius(radius * 0.9);
svg.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
var key = function(d) {
return d.data.label;
};
var color = d3.scale.ordinal()
.domain(["Lorem ipsum", "dolor sit", "amet", "consectetur", "adipisicing"])
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56"]);
function randomData() {
var data1 = [{
"label": "AA",
"value": 0.911035425558026
}, {
"label": "BB",
"value": 0.08175111844879179
}, {
"label": "CC",
"value": 0.25262439557273275
}, {
"label": "DD",
"value": 0.8301366989535612
}, {
"label": "EE",
"value": 0.0517762265780517
}];
var data2 = [{
"label": "AA",
"value": 0.243879179
}, {
"label": "BB",
"value": 0.243879179
}, {
"label": "CC",
"value": 0.2342439557273275
}, {
"label": "DD",
"value": 0.2349535612
}, {
"label": "EE",
"value": 0.2345780517
}];
var j = Math.floor((Math.random() * 2) + 1);
if (j == 1) {
return data1;
} else {
return data2;
}
}
change(randomData());
d3.select(".randomize")
.on("click", function() {
change(randomData());
});
function change(data) {
/* ------- PIE SLICES -------*/
var slice = svg.select(".slices").selectAll("path.slice")
.data(pie(data), key);
slice.enter()
.insert("path")
.style("fill", function(d) {
return color(d.data.label);
})
.attr("class", "slice");
slice
.transition().duration(1000)
.attrTween("d", function(d) {
this._current = this._current || d;
var interpolate = d3.interpolate(this._current, d);
this._current = interpolate(0);
return function(t) {
return arc(interpolate(t));
};
})
slice.exit()
.remove();
};
This is as close I have got so far.. I've merged the two charts together as such - although there is a bug still trying to update the bubbles -- at least get them to scale/morph/move/animate. Ideally I want them to stick close to their group segments..
here is the fiddle.
https://jsfiddle.net/tk5xog0g/1/
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>doughpie</title>
<link rel="stylesheet" href="css/generic.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<script src="http://d3js.org/d3.v3.min.js"></script>
</head>
<body>
<button class="randomize">randomize</button>
<div data-role="doughpie" data-width="450" data-height="450" id="graph"></div>
<script>
//__invoke pie chart
$('[data-role="doughpie"]').each(function(index) {
createDoughnut(this);
});
function bubbledata(data){
//loop through data -- and MERGE children
var childs = [];
$.each(data, function( index, value ) {
childs.push(value.children);
});
var merged = [].concat.apply([], childs);//flatterns multidimensional array
return $.extend(true, {}, {"children": merged});// return deep clone
}
function createDoughnut(el){
var width = $(el).data("width"),
height = $(el).data("height"),
radius = Math.min(width, height) / 2;
var svg = d3.select($(el)[0])
.append("svg")
.attr("width", width)
.attr("height", height)
//_create doughpie shell
var doughpie = svg.append("g")
.attr("class", "doughpie");
doughpie.append("g")
.attr("class", "slices");
doughpie.append("g")
.attr("class", "labels");
doughpie.append("g")
.attr("class", "lines");
var pie = d3.layout.pie()
.sort(null)
.value(function(d) {
return d.value;
});
var arc = d3.svg.arc()
.outerRadius(radius * 0.85)
.innerRadius(radius * 0.83);
var outerArc = d3.svg.arc()
.innerRadius(radius * 0.9)
.outerRadius(radius * 0.9);
doughpie.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
var key = function(d) {
return d.data.label;
};
var color = d3.scale.ordinal()
.range(["#46a2de", "#7b3cce", "#31d99c", "#de5942", "#ffa618"]);
//_create doughpie shell
//_create bubble
var diameter = width/2;//take half/width
var bubs = svg.append("g")
.attr("class", "bubs");
bubs.attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");
var bubble = d3.layout.pack()
.size([diameter, diameter])
.value(function(d) {
return d.size;
})
.padding(3);
//_create bubble
function randomData() {
var data1 = [{
"label": "AA",
"value": 0.911035425558026,
"children": [
{
name: "some text aa",
group: "AA",
size: 120
}
]
}, {
"label": "BB",
"value": 0.08175111844879179,
"children": [
{
name: "some text bb",
group: "BB",
size: 123
}
]
}, {
"label": "CC",
"value": 0.25262439557273275,
"children": [
{
name: "some text cc",
group: "CC",
size: 193
}
]
}, {
"label": "DD",
"value": 0.8301366989535612,
"children": [
{
name: "some text dd",
group: "DD",
size: 29
},
{
name: "some text dd",
group: "DD",
size: 289
}
]
}, {
"label": "EE",
"value": 0.0517762265780517,
"children": [
{
name: "some text ee",
group: "EE",
size: 389
},
{
name: "some text ee",
group: "EE",
size: 89
}
]
}];
var data2 = [{
"label": "AA",
"value": 0.243879179,
"children": [
{
name: "some text aa",
group: "AA",
size: 120
}
]
}, {
"label": "BB",
"value": 0.243879179,
"children": [
{
name: "some text bb",
group: "BB",
size: 123
}
]
}, {
"label": "CC",
"value": 0.2342439557273275,
"children": [
{
name: "some text cc",
group: "CC",
size: 193
}
]
}, {
"label": "DD",
"value": 0.2349535612,
"children": [
{
name: "some text dd",
group: "DD",
size: 29
},
{
name: "some text dd",
group: "DD",
size: 289
}
]
}, {
"label": "EE",
"value": 0.2345780517,
"children": [
{
name: "some text ee",
group: "EE",
size: 389
},
{
name: "some text ee",
group: "EE",
size: 89
}
]
}];
var j = Math.floor((Math.random() * 2) + 1);
if (j == 1) {
return data1;
} else {
return data2;
}
}
change(randomData());
d3.select(".randomize")
.on("click", function() {
change(randomData());
});
function change(data) {
/* ------- ANIMATE PIE SLICES -------*/
var slice = doughpie.select(".slices").selectAll("path.slice")
.data(pie(data), key);
slice.enter()
.insert("path")
.style("fill", function(d) {
return color(d.data.label);
})
.style("transform", function(d, i){
//return "translate(0, 0)";
})
.attr("class", "slice");
slice
.transition().duration(1000)
.attrTween("d", function(d) {
this._current = this._current || d;
var interpolate = d3.interpolate(this._current, d);
this._current = interpolate(0);
return function(t) {
return arc(interpolate(t));
};
})
slice.exit()
.remove();
/* ------- ANIMATE PIE SLICES -------*/
/* ------- ANIMATE BUBBLES -------*/
// generate data with calculated layout values
var data = bubbledata(data);
var nodes = bubble.nodes(data)
.filter(function(d) {
return !d.children;
}); // filter out the outer bubble
var bubbles = bubs.selectAll('circle')
.data(nodes);
bubbles.enter()
.insert("circle")
.attr('transform', function(d) {
return 'translate(' + d.x + ',' + d.y + ')';
})
.attr('r', function(d) {
return d.r;
})
.style("fill", function(d) {
return color(d.group);
});
bubbles
.transition().duration(1000)
bubbles.exit()
.remove();
/* ------- ANIMATE BUBBLES -------*/
};
}
</script>
</body>
</html>
I thought I will try and first plot mid dot points on the arcs -- and maybe from THOSE -- start to get a batch of zone coordinates to master control the coloured bubbles.
I've been trying to follow this -- How to get coordinates of slices along the edge of a pie chart?
https://jsfiddle.net/tk5xog0g/28/
/*placing mid dots*/
var midDotsArrayCooridnates = [];
slice
.each(function(d) {
x = 0 + (radius * 0.85) * Math.cos(d.startAngle);
y = 0 + (radius * 0.85) * Math.sin(d.startAngle);
var obj = {
"x": x,
"y": y
}
midDotsArrayCooridnates.push(obj);
});
$.each(midDotsArrayCooridnates, function(index, value) {
var dot = doughpie.select(".slicedots").append('circle')
.attr('cx', value.x)
.attr('cy', value.y)
.attr('r', 5)
.style("fill", "red")
.attr('class', "ccc")
});
/*placing mid dots*/

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