function getData() {
            return {
                "name": "Data",
                "children": [{
                    "name": "Doctors",
                    "children": [{
                        "name": "Male",
                        "size": 55
                    }, {
                        "name": "Female",
                        "size": 45
                    }]
                }, {
                    "name": "Comp Engg",
                    "children": [{
                        "name": "Male",
                        "size": 40
                    }, {
                        "name": "Female",
                        "size": 60
                    }]
                },{
                    "name": "Mech Engg",
                    "children": [{
                        "name": "Male",
                        "size": 75
                    }, {
                        "name": "Female",
                        "size": 25
                    }]
                },{
                    "name": "Elec Engg",
                    "children": [{
                        "name": "Male",
                        "size": 60
                    }, {
                        "name": "Female",
                        "size": 40
                    }]
                },{
                    "name": "Mining Engg",
                    "children": [{
                        "name": "Male",
                        "size": 80
                    }, {
                        "name": "Female",
                        "size": 20
                    }]
                }]
            }
        };

        var colorScheme = ["#E57373","#BA68C8","#7986CB","#A1887F","#90A4AE","#AED581","#9575CD","#FF8A65","#4DB6AC","#FFF176","#64B5F6","#00E676"];
        dataset = getData();

		var width = 500,
		height = 500,
		radius = Math.min(width / 2, height / 2) * 0.90;

		var x = d3.scale.linear()
		.range([0, 2 * Math.PI]);

		var y = d3.scale.linear()
		.range([0, radius]);

		var color = d3.scale.ordinal().range(colorScheme);

		var divHeight = height;
		var divWidth = width;

		var svg = d3.select("#chart").append("svg")
		.attr("width", width)
		.attr("height", height)
		.append("g")
		.attr("transform", "translate(" + divWidth / 2 + "," + height / 2 + ") rotate(-90 0 0)");

		var partition = d3.layout.partition()
		.value(function(d) {
			return d.size;
		});

		var tooltip = d3.select("body")
		.append("div")
		.attr("class", "tooltip")
		.style("position", "absolute")
		.style("z-index", "10")
		.style("opacity", 0);

		var arc = d3.svg.arc()
		.startAngle(function(d) {
			if (d.size != 0)
				return Math.max(0, Math.min(2 * Math.PI, x(d.x)));
		})
		.endAngle(function(d) {

			if (d.depth == 0)
				return Math.max(0, Math.min(2 * Math.PI, x(d.x + d.dx)));

			if (d.depth == 2) {
				return Math.max(0, Math.min(2 * Math.PI, x(d.x + d.dx)));
			}

			if (d.size != 0)
				return Math.max(0, Math.min(2 * Math.PI, x(d.x + d.dx)));
		})
		.innerRadius(function(d) {
			if (d.size != 0)
				return Math.max(0, y(d.y));
		})
		.outerRadius(function(d) {
			if (d.size != 0)
				return Math.max(0, y(d.y + d.dy));

		});

		var root = dataset;

		var g = svg.selectAll("g")
		.data(partition.nodes(root))
		.enter().append("g");

		var path = g.append("path")
		.attr("d", arc)
		.style("fill", function(d) {
			return color((d.children ? d : d.parent).name);
		})
		.on("click", click)
		.on("mouseover", function(d) {
			tooltip.html(function() {
				return d.name + "<br>" + d.value;
			});
			return tooltip.transition()
			.duration(50)
			.style("opacity", 0.9);
		})
		.on("mousemove", function(d) {
			return tooltip
			.style("top", (d3.event.pageY-10)+"px")
			.style("left", (d3.event.pageX+10)+"px");
		})
		.on("mouseout", function(){return tooltip.style("opacity", 0);});


        //.append("text")
        var text = g.append("text")
        .attr("x", function(d) {
        	return y(d.y);
        })
        .attr("dx", function(d) {
        	return d.depth == 0 ? "9" : "9"
            }) // margin
            .attr("dy", ".35em") // vertical-align
            .attr("transform", function(d) {
            	return "rotate(" + computeTextRotation(d) + ")";
            })
            .text(function(d) {
            	return d.size == null ? d.name : d.name + ': ' + d.size;
            })
            .style("fill", "black");

            function computeTextRotation(d) {
            	var angle = x(d.x + d.dx / 2) - Math.PI / 2;
            	return angle / Math.PI * 180;
            }

            function click(d) {
            // fade out all text elements
            if (d.size !== undefined) {
            	d.size += 100;
            };
            text.transition().attr("opacity", 0);

            path.transition()
            .duration(750)
            .attrTween("d", arcTween(d))
            .each("end", function(e, i) {
                    // check if the animated element's data e lies within the visible angle span given in d
                    if (e.x >= d.x && e.x < (d.x + d.dx)) {
                        // get a selection of the associated text element
                        var arcText = d3.select(this.parentNode).select("text");
                        // fade in the text element and recalculate positions
                        arcText.transition().duration(750)
                        .attr("opacity", 1)
                        .attr("transform", function() {
                        	return "rotate(" + computeTextRotation(e) + ")"
                        })
                        .attr("x", function(d) {
                        	return y(d.y);
                        });
                    }
                });
        } //});

        // Word wrap!
        var insertLinebreaks = function(t, d, width) {
        	var el = d3.select(t);
        	var p = d3.select(t.parentNode);
        	p.append("g")
        	.attr("x", function(d) {
        		return y(d.y);
        	})
                //.attr("dx", "6") // margin
                //.attr("dy", ".35em") // vertical-align
                .attr("transform", function(d) {
                	return "rotate(" + computeTextRotation(d) + ")";
                })
                //p
                .append("foreignObject")
                .attr('x', -width / 2)
                .attr("width", width)
                .attr("height", 200)
                .append("xhtml:p")
                .attr('style', 'word-wrap: break-word; text-align:center;')
                .html('d.name');
                el.remove();
            };

            d3.select(self.frameElement).style("height", height + "px");

        // Interpolate the scales!
        function arcTween(d) {
        	var xd = d3.interpolate(x.domain(), [d.x, d.x + d.dx]),
        	yd = d3.interpolate(y.domain(), [d.y, 1]),
        	yr = d3.interpolate(y.range(), [d.y ? 20 : 0, radius]);
        	return function(d, i) {
        		return i ? function(t) {
        			return arc(d);
        		} : function(t) {
        			x.domain(xd(t));
        			y.domain(yd(t)).range(yr(t));
        			return arc(d);
        		};
        	};
        }