var w = 650,
h = 650;
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
var color = d3.scaleOrdinal(d3.schemeCategory10)
var data = {
name: "root",
children: [{
label: 'RED1',
size: 20,
color: 'red'
}, {
label: 'RAD2',
size: 20,
color: '#c99700'
}, {
label: 'BIL3',
size: 20,
color: 'blue'
}, {
label: 'EEN4',
size: 10,
color: '#007377'
}, {
label: 'INO5',
size: 40,
color: '#b4975a'
}, {
label: 'RAD6',
size: 40,
color: '#c99700'
}, {
label: 'BIL7',
size: 30,
color: '#008ce6'
}, {
label: 'INO8',
size: 30,
color: '#b4975a'
}, {
label: 'INO9',
size: 40,
color: '#b4975a'
}, {
label: 'RAD10',
size: 40,
color: '#c99700'
}, {
label: 'BIL11',
size: 30,
color: '#008ce6'
}, {
label: 'INO12',
size: 30,
color: '#b4975a'
}]
};
var render = function() {
var simulation = d3.forceSimulation(data.children)
.force("x", d3.forceX(w / 2))
.force("y", d3.forceY(h / 2))
.force("collide", d3.forceCollide(function(d) {
return d.size + 20
}))
.stop();
for (var i = 0; i < 100; ++i) simulation.tick();
for (let d of data.children) {
d.initialX = d.x;
d.initialY = d.y;
}
simulation
.force("x", d3.forceX(d => d.initialX).strength(0.2))
.force("y", d3.forceY(d => d.initialY).strength(0.2));
let nodeLevel1 = svg.selectAll('circle')
.data(data.children, (d) => {
// Attaching key for uniqueness
return d.label;
});
nodeLevel1.exit().remove();
let nodeLevel1Enter = nodeLevel1
.enter()
.append("circle")
.attr("cx", function(d) {
return d.x
})
.attr("cy", function(d) {
return d.y
})
.attr("r", function(d) {
return d.size
})
.style("fill", function(d) {
return d.color;
})
nodeLevel1Enter = nodeLevel1Enter
.merge(nodeLevel1)
nodeLevel1Enter
.transition()
.duration(1600)
.attr("cx", function(d) {
return d.x
})
.attr("cy", function(d) {
return d.y
})
.attr("r", function(d) {
return d.size
})
.style("fill", function(d) {
return d.color;
})
d3.select('#updatesize').on('click', function() {
add();
})
d3.select('#updatebluesize').on('click', function() {
addblue();
})
d3.select('#resetsize').on('click', function() {
reset();
})
d3.select('#resetall').on('click', function() {
resetall();
})
var add = function() {
data.children[0].size = 140;
move();
}
var addblue = function() {
data.children[2].size = 100;
move();
}
var reset = function() {
data.children[0].size = 20;
move();
}
var resetall = function() {
data.children[0].size = 20;
data.children[2].size = 20;
move();
}
function move() {
simulation.nodes(data.children);
simulation.alpha(1);
for (var i = 0; i < 300; ++i) simulation.tick();
nodeLevel1Enter
.transition()
.duration(1600)
.attr("cx", function(d) {
return d.x
})
.attr("cy", function(d) {
return d.y
})
.attr("r", function(d) {
return d.size
});
}
}
render();
<script src="https://d3js.org/d3.v4.min.js"></script>
<a href='javascript:;' id='updatesize'>Update red resource size</a> |
<a href='javascript:;' id='updatebluesize'>Update blue resource size</a> |
<a href='javascript:;' id='resetsize'>Reset red resource size</a> |
<a href='javascript:;' id='resetall'>Reset all</a>