text: /*=========================================================================================
      File Name: line.js
      Description: D3 simple line chart
      ----------------------------------------------------------------------------------------
      Item Name: Modern Admin - Clean Bootstrap 4 Dashboard HTML Template
      Version: 1.0
      Author: PIXINVENT
      Author URL: http://www.themeforest.net/user/pixinvent
  ==========================================================================================*/
  
  // Line chart
  // ------------------------------
  $(window).on("load", function() {
  
      var ele = d3.select("#sunburst-distortion"),
          width = ele.node().getBoundingClientRect().width,
          height = 400;
      radius = 190;
  
      // Color
      var color = d3.scale.ordinal()
          .range(["#99B898", "#FECEA8", "#FF847C", "#E84A5F", "#C06C84", "#6C5B7B", "#355C7D"]);
  
      var partition = d3.layout.partition()
          .size([2 * Math.PI, radius])
          .value(function(d) { return d.size; });
  
      var arc = d3.svg.arc()
          .startAngle(function(d) { return d.x; })
          .endAngle(function(d) { return d.x + d.dx; })
          .innerRadius(function(d) { return d.y; })
          .outerRadius(function(d) { return d.y + d.dy; });
  
      var svg = ele.append("svg")
          .attr("width", width)
          .attr("height", height)
          .append("g")
          .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
  
      d3.json("app-assets/data/d3/circle/flare.json", function(error, root) {
          if (error) throw error;
  
          path = svg.data([root]).selectAll("path")
              .data(partition.nodes)
              .enter().append("path")
              .attr("d", arc)
              .style("fill", function(d) { return color((d.children ? d : d.parent).name); })
              .on("click", magnify)
              .each(stash);
      });
  
      // Distort the specified node to 80% of its parent.
      function magnify(node) {
          if (parent = node.parent) {
              var parent,
                  x = parent.x,
                  k = .8;
              parent.children.forEach(function(sibling) {
                  x += reposition(sibling, x, sibling === node ?
                      parent.dx * k / node.value :
                      parent.dx * (1 - k) / (parent.value - node.value));
              });
          } else {
              reposition(node, 0, node.dx / node.value);
          }
  
          path.transition()
              .duration(750)
              .attrTween("d", arcTween);
      }
  
      // Recursively reposition the node at position x with scale k.
      function reposition(node, x, k) {
          node.x = x;
          if (node.children && (n = node.children.length)) {
              var i = -1,
                  n;
              while (++i < n) x += reposition(node.children[i], x, k);
          }
          return node.dx = node.value * k;
      }
  
      // Stash the old values for transition.
      function stash(d) {
          d.x0 = d.x;
          d.dx0 = d.dx;
      }
  
      // Interpolate the arcs in data space.
      function arcTween(a) {
          var i = d3.interpolate({ x: a.x0, dx: a.dx0 }, a);
          return function(t) {
              var b = i(t);
              a.x0 = b.x;
              a.dx0 = b.dx;
              return arc(b);
          };
      }
  });