called at start initializes necessary classes used to visualize turtles concode_field_sep SLogoVisualizer myCurrentVisualizer concode_elem_sep List<SLogoVisualizer> myVisualizers concode_elem_sep Model myModel concode_field_sep Model getModel concode_elem_sep String getLanguage concode_elem_sep void setVisualizers concode_elem_sep void updateCustoms concode_elem_sep void switchVisualizer concode_elem_sep Observer getObserver concode_elem_sep List<SLogoVisualizer> getVisualizers concode_elem_sep SLogoVisualizer getCurrentVisualizer concode_elem_sep void addVisualizer concode_elem_sep void setModel concode_elem_sep void setCurrentVisualizer concode_elem_sep void updateDisplayData concode_elem_sep void updateVariables
void function ( ) { myCurrentVisualizer . initialize ( ) ; myVisualizers . add ( myCurrentVisualizer ) ; }