chart = {
// 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 = 1000 - margin.top - margin.bottom;
// 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 container = html `<svg></svg>`;
var svg = d3.select(container)
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate("
+ margin.left + "," + margin.top + ")");
var i = 0,
duration = 750,
root,
selected;
// declares a tree layout and assigns the size
var treemap = d3.cluster().size([height, width]);
// Assigns parent, children, height, depth
root = d3.hierarchy(treeData, function (d) {
return d.children;
});
root.x0 = width / 2;
root.y0 = 0;
root.leaves().forEach(function (d) {
d.data["binkus"] = 0;
})
root.sum(function (d) {
return d.binkus;
});
update(root);
function update(source) {
console.log(root.descendants().length)
// Assigns the x and y position for the nodes
/*root.sum(function (d) {
return d.binkus;
})
.sort(function (a, b) {
return b.value - a.value;
});*/
var treeData = treemap(root);
// Compute the new tree layout.
var nodes = treeData.descendants(),
links = treeData.descendants().slice(1);
// switch dimensions
//nodes.forEach(function(d){ var y = d.y; d.y = d.x; d.x = y});
// ****************** 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')
.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("stroke", function (d) {
//return d3.interpolateInferno(d.value / root.value);
//})
.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("stroke", function (d) {
//return d3.interpolateInferno(d.value / root.value);
//})
.style("stroke-dasharray", function(d) {
return d.selected ? "4" : "0";
})
.style("fill", function (d) {
return d._children ? "lightsteelblue" : "#fff";
})
.attr('cursor', 'pointer');
// Remove any exiting nodes
var nodeExit = node.exit().transition()
.duration(0)
.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;
});
// Creates a curved (diagonal) path from parent to the child nodes
function diagonal(s, d) {
var path2 = `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 path2
}
}
function click(d) {
navselect(d);
}
function collapse(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
function collapseSelected() {
if (selected) {
collapse(selected)
}
}
function navselect(d) {
root.descendants().forEach(function(k) {k.selected = 0;});
d.selected = 1;
selected = d;
if (selected.parent) {
selected.parent.lastchild = selected
}
update(d);
}
function navParent() {
if (selected) {
if (selected.parent) {
navselect(selected.parent);
}
}
}
function navChild() {
if (selected) {
if (selected.children) {
if (selected.lastchild) {
navselect(selected.lastchild);
}
else {
navselect(selected.children[0])
}
}
}
}
function navPriorSibling() {
if (selected) {
if (selected.parent) {
let parent = selected.parent
let n = parent.children.length
navselect(parent.children[((parent.children.indexOf(selected) - 1)%n + n)%n])
}
}
}
function navNextSibling() {
if (selected) {
if (selected.parent) {
let parent = selected.parent
let n = parent.children.length
navselect(parent.children[((parent.children.indexOf(selected) + 1)%n + n)%n])
}
}
}
d3.select("body")
.on("keydown", function() {
if(d3.event.key == "ArrowLeft"){
navParent()
}
else if(d3.event.key == "ArrowRight"){
navChild()
}
else if(d3.event.key == "ArrowUp"){
navPriorSibling()
}
else if(d3.event.key == "ArrowDown"){
navNextSibling()
}
else if(d3.event.key == " "){
collapseSelected()
}
});
return (container);
}
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