ion focusRandom() {
      updateValues();

      var nodeId = Math.floor(Math.random() * amountOfNodes);
      var options = {
        // position: {x:positionx,y:positiony}, // this is not relevant when focusing on nodes
        scale: scale,
        offset: {x:offsetx,y:offsety},
        animation: {
          duration: duration,
          easingFunction: easingFunction
        }
      };
      statusUpdateSpan.innerHTML = 'Focusing on node: ' + nodeId;
      finishMessage = 'Node: ' + nodeId + ' in focus