can any body help with debugging my script!! I can't load the external data from the json file.. it works with a variable in the code but when I separate them in a file.. it's not!!
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8'>
<title>tree 1</title>
<style>
.node {
cursor: pointer;
}
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 1.5px;
}
.node text {
font: 10px sans-serif;
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 1.5px;
}
</style>
</head>
<body>
<script src='http://d3js.org/d3.v3.min.js'></script>
<script type="text/javascript">
// ************** Generate the tree diagram *****************
var diameter = 1000;
var margin = {
top: 20,
right: 120,
bottom: 20,
left: 120
},
width = diameter,
height = diameter;
var i = 0,
duration = 350,
root;
var tree = d3.layout.tree()
.size([360, diameter / 2 - 80])
.separation(function(a, b) {
return (a.parent == b.parent ? 1 : 10) / a.depth;
});
var diagonal = self.diagonal = d3.svg.line().interpolate('step')
.x(function(d) {
return d.x;
})
.y(function(d) {
return d.y;
});
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");
// load the external data
d3.json("dataFile.json", function(error, dataFile) {
root = dataFile;
root.x0 = height / 2;
root.y0 = 0;
update(root);
});
//root = pubs;
//root.x0 = height / 2;
//root.y0 = 0;
//root.children.forEach(collapse); // start with all children collapsed
//update(root);
d3.select(self.frameElement).style("height", "800px");
function update(source) {
// Compute the new tree layout.
var nodes = tree.nodes(root),
links = tree.links(nodes);
// Normalize for fixed-depth.
nodes.forEach(function(d) {
d.y = d.depth * 80;
});
// Update the nodes…
var node = svg.selectAll("g.node")
.data(nodes, function(d) {
return d.id || (d.id = ++i);
});
// Enter any new nodes at the parent's previous position.
var nodeEnter = node.enter().append("g")
.attr("class", "node")
//.attr("transform", function(d) { return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")"; })
.on("click", click);
nodeEnter.append("circle")
.attr("r", 1e-6)
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
});
nodeEnter.append("text")
.attr("x", 10)
.attr("dy", ".35em")
.attr("text-anchor", "start")
//.attr("transform", function(d) { return d.x < 180 ? "translate(0)" : "rotate(180)translate(-" + (d.name.length * 8.5) + ")"; })
.text(function(d) {
return d.name;
})
.style("fill-opacity", 1e-6);
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) {
return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")";
})
nodeUpdate.select("circle")
.attr("r", 4.5)
.style("fill", function(d) {
return d._children ? "lightsteelblue" : "#fff";
});
nodeUpdate.select("text")
.style("fill-opacity", 1)
.attr("transform", function(d) {
return d.x < 180 ? "translate(0)" : "rotate(180)translate(-" + (d.name.length + 50) + ")";
});
// TODO: appropriate transform
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) {
return "diagonal(" + source.y + "," + source.x + ")";
})
.remove();
nodeExit.select("circle")
.attr("r", 1e-6);
nodeExit.select("text")
.style("fill-opacity", 1e-6);
// Update the links…
var link = svg.selectAll("path.link")
.data(links, function(d) {
return d.target.id;
});
// Enter any new links at the parent's previous position.
link.enter().append('svg:path', 'g')
.duration(self.duration)
.attr('d', function(d) {
return self.diagonal([{
y: d.source.x,
x: d.source.y
}, {
y: d.target.x,
x: d.target.y
}]);
});
// Transition links to their new position.
link.transition()
.duration(duration)
.attr("d", diagonal);
// Transition exiting nodes to the parent's new position.
link.exit().transition()
.duration(duration)
.attr("d", function(d) {
var o = {
x: source.x,
y: source.y
};
return diagonal({
source: o,
target: o
});
})
.remove();
// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
// Collapse nodes
function collapse(d) {
if (d.children) {
d._children = d.children;
d._children.forEach(collapse);
d.children = null;
}
}
</script>
</body>
</html> {
"name": "Top Level",
"parent": "null",
"children": [
{
"name": "Level 2: A",
"parent": "Top Level",
"children": [
{
"name": "Son of A",
"parent": "Level 2: A"
},
{
"name": "Daughter of A",
"parent": "Level 2: A"
}
]
},
{
"name": "Level 2: B",
"parent": "Top Level"
}
]
}
;THANKS!!
