cuatro en uno

<!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="barras1"></div>
  <div></div>
  <div></div>
  <div id="motivos-rechazo"></div>
  <button class="btn btn-primary" onclick="svgToPng()">svg to png</button>
  <script>
    //Inicio Barras1
    var puntos = [
  {name: "Pendientes",    value:  0.40},
  {name: "Totales",    value:  0.0667},
  {name: "Parciales",     value: 0.0667},
  {name: "Rechazados",   value: 0.0}
];
  
var margin = {top: 80, right: 180, bottom: 80, left: 180},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scaleBand().rangeRound([0, width], 0.1, 0.3);

var y = d3.scaleLinear()
    .range([height, 0]);

var xAxis = d3.axisBottom()
    .scale(x);

var yAxis = d3.axisLeft()
    .scale(y)
    .ticks(8, "%");
  
var tooltip = d3.select("#barras1").append("div")
		.attr("class", "tooltip");

var svg = d3.select("#barras1").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 + ")");

//EL GRÁFICO
  x.domain(puntos.map(function(d) { return d.name; }));
  y.domain([0, d3.max(puntos, function(d) { return d.value; })]);
  
  svg.append("text")
      .attr("class", "title")
      .attr("x", (150))
      .attr("y", -30)
      .text("Porcentaje de las entregas según su estado");

svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .selectAll(".tick text")
      .call(wrap, x.bandwidth());
  
  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis);

svg.selectAll(".bar")
      .data(puntos)
    .enter().append("rect")
      .attr("class", function(d) {
    		if(d.name == "Pendientes") { return "bar-pe";}
  			else if(d.name == "Totales") { return "bar-to";}
    		else if(d.name == "Parciales") { return "bar-pa";}
    		else if(d.name == "Rechazados") { return "bar-re";}
  			})
      .attr("x", function(d) { return x(d.name); })
      .attr("width", x.bandwidth())
      .attr("y", function(d) { return y(d.value); })
      .attr("height", function(d) { return height - y(d.value); })
  		.on('mouseover', function(d){
  			d3.select("#major").text(d.key);
  			tooltip.transition()
               .duration(500)
               .style("opacity", 1);
  			tooltip.html((d.value * 100) + "%")
               .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);
				})
  
function wrap(text, width) {
  text.each(function() {
    var text = d3.select(this),
        words = text.text().split(/\s+/).reverse(),
        word,
        line = [],
        lineNumber = 0,
        lineHeight = 1.1, // ems
        y = text.attr("y"),
        dy = parseFloat(text.attr("dy")),
        tspan = text.text(null).append("tspan").attr("x", 0).attr("y", y).attr("dy", dy + "em");
    while (word = words.pop()) {
      line.push(word);
      tspan.text(line.join(" "));
      if (tspan.node().getComputedTextLength() > width) {
        line.pop();
        tspan.text(line.join(" "));
        line = [word];
        tspan = text.append("tspan").attr("x", 0).attr("y", y).attr("dy", ++lineNumber * lineHeight + dy + "em").text(word);
      }
    }
  });
}

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(width/2, height/2))
  
  // pull toward center
  .force('attract', d3.forceAttract()
    .target([width/2, height/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);

svg1.append("text")
      .attr("class", "title")
      .attr("x", (width/4))
      .attr("y", 20)
      .text("Porcentaje de las entregas según su estado");
      
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