docs: private void comboXActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_comboXActionPerformed
          if (visualizer == null) return;
          JComboBox cb = (JComboBox)evt.getSource();
          int dim = cb.getSelectedIndex();
          streamPanel0.setActiveXDim(dim);
          streamPanel1.setActiveXDim(dim);
          if(visualizer!=null)
              visualizer.redraw();
      }