Coola85/.block

## .block
license: gpl-3.0

## README.md

      
    Raw
  

              README.md
            
          
    In response to a Stack Overflow question, Tree drawing orientation.
forked from mbostock's block: Tree Layout Orientations
forked from Coola85's block: Tree

  
## graph.json
{
"name" : "Father",
  "children": [
    { "name" : "Son",
      "children": [
        {"name" : "Grandson"},
        {"name" : "Granddaughter"}
      ]
    }
  ]
}

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.link {
  fill: none;
  stroke: #000;
}

.border {
  fill: none;
  shape-rendering: crispEdges;
  stroke: #aaa;
}

.node {
  stroke: #fff;
  }

</style>
<body>
<script src="//d3js.org/d3.v5.min.js"></script>
<script>

var margin = {top: 100, right: 10, bottom: 240, left: 10},
    width = 340 - margin.left - margin.right,
    height = 600 - margin.top - margin.bottom;

var orientations = {
  "bottom-to-top": {
    size: [width, height],
    x: function(d) { return d.x; },
    y: function(d) { return height - d.y; }
  }
};

var svg = d3.select("body").selectAll("svg")
    .data(d3.entries(orientations))
  .enter().append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

d3.json("graph.json").then(function(data) {

  svg.each(function(orientation) {
    var svg = d3.select(this),
        o = orientation.value;

    // Compute the layout.
    var treemap = d3.tree().size(o.size);

    var nodes = d3.hierarchy(data);

        nodes = treemap(nodes);

    var links = nodes.descendants().slice(1);


    // Create the link lines.
    svg.selectAll(".link")
        .data(links)
      .enter().append("path")
        .attr("class", "link")
        .attr("d", function(d) {
       return "M" + d.x + "," + o.y(d)
         + "C" + d.x + "," + (o.y(d) + o.y(d.parent)) / 2
         + " " + d.parent.x + "," +  (o.y(d) + o.y(d.parent)) / 2
         + " " + d.parent.x + "," + o.y(d.parent);
       });

    // Create the node circles.
    var node = svg.selectAll(".node")
        .data(nodes.descendants())
      .enter()
    		.append("g")
    node.append("circle")
        .attr("class", "node")
        .attr("r", 4.5)
        .attr("cx", o.x)
        .attr("cy", o.y);


   node .append("text")
        .text(function (d) {return d.data.name;})
        .attr("x", o.x)
        .attr("dx", 5)
        .attr("y", o.y);
  });
});

</script>
	{
	"name" : "Father",
	"children": [
	{ "name" : "Son",
	"children": [
	{"name" : "Grandson"},
	{"name" : "Granddaughter"}
	]
	}
	]
	}
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	font: 10px sans-serif;
	}

	.link {
	fill: none;
	stroke: #000;
	}

	.border {
	fill: none;
	shape-rendering: crispEdges;
	stroke: #aaa;
	}

	.node {
	stroke: #fff;
	}

	</style>
	<body>
	<script src="//d3js.org/d3.v5.min.js"></script>
	<script>

	var margin = {top: 100, right: 10, bottom: 240, left: 10},
	width = 340 - margin.left - margin.right,
	height = 600 - margin.top - margin.bottom;

	var orientations = {
	"bottom-to-top": {
	size: [width, height],
	x: function(d) { return d.x; },
	y: function(d) { return height - d.y; }
	}
	};

	var svg = d3.select("body").selectAll("svg")
	.data(d3.entries(orientations))
	.enter().append("svg")
	.attr("width", width + margin.left + margin.right)
	.attr("height", height + margin.top + margin.bottom)
	.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	d3.json("graph.json").then(function(data) {

	svg.each(function(orientation) {
	var svg = d3.select(this),
	o = orientation.value;

	// Compute the layout.
	var treemap = d3.tree().size(o.size);

	var nodes = d3.hierarchy(data);

	nodes = treemap(nodes);

	var links = nodes.descendants().slice(1);


	// Create the link lines.
	svg.selectAll(".link")
	.data(links)
	.enter().append("path")
	.attr("class", "link")
	.attr("d", function(d) {
	return "M" + d.x + "," + o.y(d)
	+ "C" + d.x + "," + (o.y(d) + o.y(d.parent)) / 2
	+ " " + d.parent.x + "," + (o.y(d) + o.y(d.parent)) / 2
	+ " " + d.parent.x + "," + o.y(d.parent);
	});

	// Create the node circles.
	var node = svg.selectAll(".node")
	.data(nodes.descendants())
	.enter()
	.append("g")
	node.append("circle")
	.attr("class", "node")
	.attr("r", 4.5)
	.attr("cx", o.x)
	.attr("cy", o.y);


	node .append("text")
	.text(function (d) {return d.data.name;})
	.attr("x", o.x)
	.attr("dx", 5)
	.attr("y", o.y);
	});
	});

	</script>