function showAllNodesLinksCurrent() {
  // fade out all nodes
  svg.selectAll(".node").classed("fadeOut",false).classed("node--active",false);

  // fade in lines and lines history
  if(isSafari == true) {
    d3.select("#lines_current_img").classed("fadeOut",false);
    d3.select("#lines_current_selected_img").classed("fadeOut",false);
  } else {
    d3.select("#lines_history_canvas").classed("fadeOut",false);
    d3.select("#lines_current_canvas").classed("fadeOut",false);
    d3.select("#lines_current_selected_canvas").classed("fadeOut",false);
  }
  // clear screen of selected lines
  clearScreen(3);
}
// general selections concerning the visualisation in the center
general selections concerning the visualisation in the center
general selections concerning the visualisation in the center
function showAllNodesLinksCurrent() {
  svg.selectAll(".node").classed("fadeOut",false).classed("node--active",false);
  if(isSafari == true) {
    d3.select("#lines_current_img").classed("fadeOut",false);
    d3.select("#lines_current_selected_img").classed("fadeOut",false);
  } else {
    d3.select("#lines_history_canvas").classed("fadeOut",false);
    d3.select("#lines_current_canvas").classed("fadeOut",false);
    d3.select("#lines_current_selected_canvas").classed("fadeOut",false);
  }
  clearScreen(3);
}
function showAllNodesLinksCurrent ( ) { svg . selectAll ( ".node" ) . classed ( "fadeOut" , false ) . classed ( "node--active" , false ) ; if ( isSafari == true ) { d3 . select ( "#lines_current_img" ) . classed ( "fadeOut" , false ) ; d3 . select ( "#lines_current_selected_img" ) . classed ( "fadeOut" , false ) ; } else { d3 . select ( "#lines_history_canvas" ) . classed ( "fadeOut" , false ) ; d3 . select ( "#lines_current_canvas" ) . classed ( "fadeOut" , false ) ; d3 . select ( "#lines_current_selected_canvas" ) . classed ( "fadeOut" , false ) ; } clearScreen ( 3 ) ; }
general selections concerning the visualisation in the center
general selections concerning the visualisation in the center
// fade out all nodes // fade in lines and lines history // clear screen of selected lines