template/html/d3-graph.js
function onControlLevelChanged()
   {
      appOptions.currentLevel = parseInt(this.value);

      $('.control-level input').val(appOptions.currentLevel);
      $('.control-level label').html(appOptions.currentLevel);

      // Redraw graph data
      updateAll({ redrawOnly: true });

      // Center graph w/ zoom fit w/ 1 second transition applied after a potential 2 seconds delay for debounce.
      centerGraph(zoomFit, 1000, data.allNodesFixed ? 0 : 2000);
   }
function onControlLevelChanged()
   {
      appOptions.currentLevel = parseInt(this.value);

      $('.control-level input').val(appOptions.currentLevel);
      $('.control-level label').html(appOptions.currentLevel);

      // Redraw graph data
      updateAll({ redrawOnly: true });

      // Center graph w/ zoom fit w/ 1 second transition applied after a potential 2 seconds delay for debounce.
      centerGraph(zoomFit, 1000, data.allNodesFixed ? 0 : 2000);
   }
Handles responding to the level slider.