cuatro en uno V.2

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <script src="https://d3js.org/d3.v4.min.js"></script>
    <script src="https://unpkg.com/d3-force-attract@latest"></script>
    <script src="https://unpkg.com/d3-force-cluster@latest"></script>
    <script src="https://cdn.jsdelivr.net/gh/exupero/savesvgaspng/gh-pages/savesvgaspng.js"></script>
  <style>
    /*body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }*/
.bar-pe {
  fill: #0075ea;
}
.bar-to {
  fill: #008e2d;
}
.bar-pa {
  fill: #ffa500;
}
.bar-re {
  fill: #FF0000;
}
  
.bar-pe:hover {
  fill: #56aafe;
}
.bar-to:hover {
  fill: #00BC3C;
}
.bar-pa:hover {
  fill: #ffbb3d;
}
.bar-re:hover {
  fill: #ff1e1e;
}
  
/*tooltip*/
	.show {
		display: block;
	}
	.hidden {
		display: none;
	}
	.tooltip {
		background-color: #333;
		padding: 4px 8px;
		position: absolute;
		color: #fff;
		opacity: 0.8;
		z-index: 100;
	}
  
.title {
  font: bold 14px "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.axis {
  font: 10px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  stroke-dasharray: 2px 2px;
}

.x.axis path {
  display: none;
}
  </style>
</head>

<body>
  <div id="prueba" style="width:1300px; height:1000px">
  </div>
  <button class="btn btn-primary" onclick="svgToPng()">svg to png</button>
  <script>
    //Inicio Barras1
    var puntos1 = [
  {name: "Pendientes",    value:  0.40},
  {name: "Totales",    value:  0.0667},
  {name: "Parciales",     value: 0.0667},
  {name: "Rechazados",   value: 0.0}
];

var widthAbs = 1000;
		heightAbs = 1000;
    
var margin1 = {top: 50, right: 0, bottom: 50, left: 50},
    width1 = 650 - margin1.left - margin1.right,
    height1 = 500 - margin1.top - margin1.bottom;

var x1 = d3.scaleBand().rangeRound([0, width1], 0.1, 0.3);
var y1 = d3.scaleLinear()
    .range([height1, 0]);
var xAxis1 = d3.axisBottom()
    .scale(x1);
var yAxis1 = d3.axisLeft()
    .scale(y1)
    .ticks(8, "%");

var margin2 = {top: 50, right: 0, bottom: 50, left: 50},
    widthYaxis = width1+margin2.left+1,
    width2 = width1*2,
    height2 = height1;

var x2 = d3.scaleBand().rangeRound([width1+margin2.left, width2], 0.1, 0.3);
var y2 = d3.scaleLinear()
    .range([height2, 0]);
var xAxis2 = d3.axisBottom()
    .scale(x2);
var yAxis2 = d3.axisLeft()
    .scale(y2)
    .ticks(8, "%");

var margin3 = {top: 100, right: 0, bottom: 50, left: 50},
    width3 = width1,
    height3 = height1*2 + margin3.top;
    
var x3 = d3.scaleBand().rangeRound([0, width3], 0.1, 0.3);
var y3 = d3.scaleLinear()
    .range([height3, height1 + margin3.top]);
var xAxis3 = d3.axisBottom()
    .scale(x3);
var yAxis3 = d3.axisLeft()
    .scale(y3)
    .ticks(8, "%");

var salto = function() {
 	if ( maxRadius/n > minRadius)
    return Math.floor(maxRadius/n);
  else
    return minRadius;
}
var color = d3.scaleLinear().domain([0,1])
      .interpolate(d3.interpolateHcl)
      .range([d3.rgb("#EBEBFF"), d3.rgb('#0000FF')]);

// The largest node for each cluster.
var clusters = new Array(m);

var simulation = d3.forceSimulation()
  // keep entire simulation balanced around screen center
  .force('center', d3.forceCenter(width4/2, height4/2))
  
  // pull toward center
  .force('attract', d3.forceAttract()
    .target([width4/2, height4/2])
    .strength(0.1))

// cluster by section
  .force('cluster', d3.forceCluster()
    .centers(function (d) { return clusters[d.cluster]; })
    .strength(0.5)
    .centerInertia(0.1))

// apply collision with padding
  .force('collide', d3.forceCollide(function (d) { return d.radius + padding; })
    .strength(0))
  .on('tick', layoutTick)
  .nodes(nodes);
    
var tooltip = d3.select("#prueba").append("div")
		.attr("class", "tooltip");
var grafico2 = d3.select('#prueba').append('svg')
    .attr('width', width4)
    .attr('height', height4);
      
var node = svg.selectAll('circle')
  .data(nodes)
  .enter()
	.append('circle')
    .style('fill', function (d) { return color(    d.degrade/n); })
		.attr('id', function (d) { return d.nombre + ": " + d.frecuencia; })
    .call(d3.drag()
      .on('start', dragstarted)
      .on('drag', dragged)
      .on('end', dragended)
    )
		.on('mouseover', function(d){
  			d3.select("#major").text(d.key);
  			tooltip.transition()
               .duration(500)
               .style("opacity", 1);
  			tooltip.html( this.id )
               .style("left", (d3.event.pageX - 25) + "px")
               .style("top", (d3.event.pageY - 50) + "px");
    	 })
  		 .on('mousemove', function (d) {	
				tooltip.style("top", (d3.event.pageY - 50) + 'px');
				tooltip.style("left", (d3.event.pageX - 25) + 'px');
			 })
  		 .on('mouseout', function(d){
        d3.select("#major").text("Mouse over");
  			tooltip.transition()
               .duration(500)
               .style("opacity", 0);
				});

svg.append("text")
      .attr("class", "title")
      .attr("x", (width2/6)+(width2/2))
      .attr("y", (height1 + margin3.top - 20))
      .text("Porcentaje de las entregas según su estado");

for(var j=0; j<n;j++) {
  svg.append("text")
      .attr("class", "title")
      .attr("x", (width1 + margin1.left))
      .attr("y", (height1 + margin3.top + 10)+(14*j))
      .text(datos[j]["motivo"] + ": " + datos[j]["frequency"]);
}
    
function dragstarted (d) {
  if (!d3.event.active) simulation.alphaTarget(0.3).restart();
  d.fx = d.x;
  d.fy = d.y;
}

function dragged (d) {
  d.fx = d3.event.x;
  d.fy = d3.event.y;
}

function dragended (d) {
  if (!d3.event.active) simulation.alphaTarget(0);
  d.fx = null;
  d.fy = null;
}

// ramp up collision strength to provide smooth transition
var transitionTime = 3000;
var t = d3.timer(function (elapsed) {
  var dt = elapsed / transitionTime;
  simulation.force('collide').strength(Math.pow(dt, 2) * 0.7);
  if (dt >= 1.0) t.stop();
});
  
function layoutTick (e) {
  node
    .attr('cx', function (d) { return d.x; })
    .attr('cy', function (d) { return d.y; })
    .attr('r', function (d) { return d.radius; })
  	.attr('text', function (d) { return d.nombre; });
}
    //Fin Motivos
    
    function svgToPng() {
      saveSvgAsPng(d3.select('svg').node(), 'graficas.png');
    }
  </script>
</body>

Updated missing url https://rawgit.com/exupero/saveSvgAsPng/gh-pages/saveSvgAsPng.js to https://cdn.jsdelivr.net/gh/exupero/savesvgaspng/gh-pages/savesvgaspng.js

https://d3js.org/d3.v4.min.js

https://unpkg.com/d3-force-attract@latest

https://unpkg.com/d3-force-cluster@latest

https://rawgit.com/exupero/saveSvgAsPng/gh-pages/saveSvgAsPng.js