Function graphForceLayout

_benchmarks/sample_echarts.js:57066–57187

(ecModel)

    }

    function graphForceLayout(ecModel) {
      ecModel.eachSeriesByType('graph', function (graphSeries) {
        var coordSys = graphSeries.coordinateSystem;

        if (coordSys && coordSys.type !== 'view') {
          return;
        }

        if (graphSeries.get('layout') === 'force') {
          var preservedPoints_1 = graphSeries.preservedPoints || {};
          var graph_1 = graphSeries.getGraph();
          var nodeData_1 = graph_1.data;
          var edgeData = graph_1.edgeData;
          var forceModel = graphSeries.getModel('force');
          var initLayout = forceModel.get('initLayout');

          if (graphSeries.preservedPoints) {
            nodeData_1.each(function (idx) {
              var id = nodeData_1.getId(idx);
              nodeData_1.setItemLayout(idx, preservedPoints_1[id] || [NaN, NaN]);
            });
          } else if (!initLayout || initLayout === 'none') {
            simpleLayout(graphSeries);
          } else if (initLayout === 'circular') {
            circularLayout(graphSeries, 'value');
          }

          var nodeDataExtent_1 = nodeData_1.getDataExtent('value');
          var edgeDataExtent_1 = edgeData.getDataExtent('value'); // let edgeDataExtent = edgeData.getDataExtent('value');

          var repulsion = forceModel.get('repulsion');
          var edgeLength = forceModel.get('edgeLength');
          var repulsionArr_1 = isArray(repulsion) ? repulsion : [repulsion, repulsion];
          var edgeLengthArr_1 = isArray(edgeLength) ? edgeLength : [edgeLength, edgeLength]; // Larger value has smaller length

          edgeLengthArr_1 = [edgeLengthArr_1[1], edgeLengthArr_1[0]];
          var nodes_1 = nodeData_1.mapArray('value', function (value, idx) {
            var point = nodeData_1.getItemLayout(idx);
            var rep = linearMap(value, nodeDataExtent_1, repulsionArr_1);

            if (isNaN(rep)) {
              rep = (repulsionArr_1[0] + repulsionArr_1[1]) / 2;
            }

            return {
              w: rep,
              rep: rep,
              fixed: nodeData_1.getItemModel(idx).get('fixed'),
              p: !point || isNaN(point[0]) || isNaN(point[1]) ? null : point
            };
          });
          var edges = edgeData.mapArray('value', function (value, idx) {
            var edge = graph_1.getEdgeByIndex(idx);
            var d = linearMap(value, edgeDataExtent_1, edgeLengthArr_1);

            if (isNaN(d)) {
              d = (edgeLengthArr_1[0] + edgeLengthArr_1[1]) / 2;
            }