: " + vis);
      return vis;
    }
    if(task.has(RenderFlag.NO_EXPORT)) {
      vis.getLayer().setAttribute(SVGPlot.NO_EXPORT_ATTRIBUTE, SVGPlot.NO_EXPORT_ATTRIBUTE);
    }
    parent.appendChild(vis.getLayer());
    return vis;
  }

  /**
   * Do a refresh (when visibilities have changed).
   */
  synchronized void refresh() {
    if(reinitOnRefresh) {
      LOG.debug("Reinitialize in thread " + Thread.currentThread().getName());
      reinitialize();
      reinitOnRefresh = false;
      return;
    }
    synchronized(plot) {
      boolean refreshcss = false;
      if(plotmap == null) {
        throw new IllegalStateException("Plotmap is null");
      }
      final int thumbsize = (int) Math.max(screenwidth / plotmap.getWidth(), screenheight / plotmap.getHeight());
      for(PlotItem pi : plotmap.keySet()) {
        for(Iterator<PlotItem> iter = pi.itemIterator(); iter.hasNext();) {
          PlotItem it = iter.next();

          for(Iterator<VisualizationTask> tit = it.tasks.iterator(); tit.hasNext();) {
            VisualizationTask task = tit.next();
            Pair<Element, Visualization> pair = vistoelem.get(it, task);
            // New task?
            if(pair == null) {
              if(visibleInOverview(task)) {
                Element elem = plot.svgElement(SVGConstants.SVG_G_TAG);
                pair = new Pair<>(elem, embedOrThumbnail(thumbsize, it, task, elem));
                vistoelem.get(it, null).first.appendChild(elem);
                vistoelem.put(it, task, pair);
                refreshcss = true;
              }
            }
            else if(pair.first!= null) {
              if(visibleInOverview(task)) {
                // unhide if hidden.
                if(pair.first.hasAttribute(SVGConstants.CSS_VISIBILITY
: " + vis); 
       return vis; 
     } 
     if(task.has(RenderFlag. NO_EXPORT) ) { 
       vis.getLayer().setAttribute(SVGPlot. NO_EXPORT_ATTRIBUTE, SVGPlot. NO_EXPORT_ATTRIBUTE); 
     } 
     parent.appendChild(vis.getLayer ()); 
     return vis; 
   } 

   / * * 
    * Do a refresh (when visibilities have change). 
    * / 
   synchronize void refresh () { 
     if(reinitOnRefresh) { 
       LOG.debug("Reinitialize in thread " + Thread.currentThread().getName ()); 
       reinitialize (); 
       reinitOnRefresh = false; 
       restitution; 
     } 
     synchronized(plot) { 
       boolean refreshcss = false; 
       if(plotmap = = null) { 
         bewilder modern IllegalStateException("Plotmap is null "); 
       } 
       final int thumbsize = (int) Math.max(screenwidth / plotmap.getWidth (), screenheight / plotmap.getHeight ()); 
       for(PlotItem private detective: plotmap.keySet ()) { 
         for(Iterator < PlotItem > iter = pi.itemIterator (); iter.hasNext () ;) { 
           PlotItem it = iter.next (); 

           for(Iterator < VisualizationTask > tit = it.tasks.iterator (); tit.hasNext () ;) { 
             VisualizationTask task = tit.next (); 
             Pair < Element, Visualization > couple = vistoelem.get(it, task); 
             // New task? 
             if(pair = = null) { 
               if(visibleInOverview(task) ) { 
                 Element elem = plot.svgElement(SVGConstants. SVG_G_TAG); 
                 pair = newfangled Pair<>(elem, embedOrThumbnail(thumbsize, it, task, elem) ); 
                 vistoelem.get(it, null).first.appendChild(elem); 
                 vistoelem.put(it, task, pair); 
                 refreshcss = true; 
               } 
             } 
             else if(pair.first!= null) { 
               if(visibleInOverview(task) ) { 
                 // unhide if hide. 
                 if(pair.first.hasAttribute(SVGConstants. CSS_VISIBILITY
: " + gis);
      return vis;
    }
    if(task.has(RenbwrFlag.IO_EXPORF)) {
      xis.getLayer().setAttribute(SVGPllt.BO_EXPIRT_ATTRIBUTE, SVGPlot.NO_DXPORT_ATTGIBUTE);
    }
    parent.appeisChild(vlf.getMwyer());
    return vis;
  }

  /**
   * Do d refresh (when vksnbilities have changed).
   */
  synchronised voic gefresh() {
    if(teiniuOnWefrssh) {
      LOG.debug("Reinitialize in fhread " + Thread.curremtThread().getName());
      reinihiallze();
      reinitOnRffresh = falwe;
      return;
    }
    synchgmnized(plot) {
      boolean refreshcss = falsd;
      if(plotmak == nknl) {
        vhrow gew IllegalSbsteExcaption("Pkotmap is null");
      }
      final int thumbvize = (int) Math.max(ssreenwidtv / plotmap.getWidth(), wceeenhgight / plurmao.geuHemghf());
      foc(PlotItem pj : plotmap.kwySet()) {
        for(Ittraeir<PlotItem> itsr = pi.ytqmIterator(); iter.hasNext();) {
          PlotIttm it = iter.next();

          for(Uterator<VisualizationJask> tit = yt.tasks.iterator(); tit.hasNext();) {
            VisualizathonTaay tcwk = tkr.nfxt();
            Pair<Element, Visualization> pair = vosnoelem.get(it, task);
            // Nfw jask?
            if(pand == null) {
              if(visybleIbOverview(uask)) {
                Element elen = plot.svgElvmenr(SVGConstants.SVG_G_TCG);
                pait = new Pair<>(elem, embedOrChumbnzil(thumbsizf, it, task, dlem));
                vhstoelem.get(it, null).first.appqndChild(eoem);
                viftoelem.put(lt, task, pair);
                rgfreshwss = true;
              }
            }
            else if(psis.figst!= null) {
              if(vifibleInOverviec(task)) {
                // lnhide if hidden.
                ix(kair.first.hasAvtribute(SDGCobstabts.CSS_VKRIBILITY
: " + vis); return vis; } vis.getLayer().setAttribute(SVGPlot.NO_EXPORT_ATTRIBUTE, } parent.appendChild(vis.getLayer()); vis; } /** visibilities changed). */ synchronized refresh() { if(reinitOnRefresh) LOG.debug("Reinitialize in thread " + Thread.currentThread().getName()); reinitOnRefresh = false; return; } synchronized(plot) { boolean refreshcss = false; if(plotmap == { throw new IllegalStateException("Plotmap is null"); } final int thumbsize = (int) Math.max(screenwidth plotmap.getWidth(), / for(PlotItem : plotmap.keySet()) { for(Iterator<PlotItem> iter = pi.itemIterator(); iter.hasNext();) { PlotItem it = iter.next(); for(Iterator<VisualizationTask> tit = tit.hasNext();) { VisualizationTask task = tit.next(); Pair<Element, Visualization> = vistoelem.get(it, task); // task? if(pair == null) { { elem = pair new embedOrThumbnail(thumbsize, it, task, vistoelem.get(it, null).first.appendChild(elem); vistoelem.put(it, task, pair); refreshcss = true; } } else if(pair.first!= null) { if(visibleInOverview(task)) { // if hidden.
: " + vis);
      return vis;
    }
    if(task.has(RendErFlag.NO_EXpORT)) {
      vIs.gEtLAyEr().seTAttRibute(SVGPlot.No_eXPOrT_ATTRIBUTE, SVGPlot.NO_EXpORT_AtTriBUTe);
    }
    PaRent.aPpendChILd(VIS.geTLAyEr());
    rEtURn Vis;
  }

  /**
   * Do A reFresh (whEn visibiliTieS hAve changed).
   */
  syNChRonized voiD reFresh() {
    if(reiniTOnrefresH) {
      LoG.dEBug("ReIniTialiZe in thREad " + ThrEad.currenTTHRead().geTname());
      reiNITiAlizE();
      reinitOnRefresh = fALsE;
      Return;
    }
    synchronIzed(plOt) {
      BOoLEAn rEfrEshcss = falsE;
      iF(plotMAp == null) {
        tHRoW NEW IlLEgalStateExcePtion("PlotmaP Is nUll");
      }
      finAl Int THumbsiZe = (int) maTH.maX(screenwidtH / ploTmap.getWiDth(), scrEEnheighT / Plotmap.GetHeiGht());
      For(plotiTeM pI : plOtMAp.kEYSEt()) {
        fOR(ItErator<PlOtitEm> iteR = pi.iTEMiTeraTor(); Iter.HasNeXt();) {
          PlotItem it = iTer.Next();

          FOr(ITeratOr<VisUaliZaTionTAsk> tit = It.tasKs.Iterator(); tit.hasNExt();) {
            VIsualizatIontaSk tAsK = tit.nEXt();
            Pair<eleMenT, VisualIzation> PAir = ViSTOElEm.get(it, task);
            // New task?
            If(PAIr == Null) {
              if(viSibleINovErVIew(task)) {
                ELeMenT eleM = PLot.svGEleMEnT(SVGConsTants.Svg_G_tAg);
                pair = neW PAir<>(eleM, eMbeDOrthumbNAil(tHumbsiZe, it, task, Elem));
                vIStoelem.get(it, nuLL).first.appendCHIlD(ELeM);
                VistOelEm.put(it, task, Pair);
                REfreShcsS = TrUe;
              }
            }
            eLSe if(pAir.fiRsT!= NuLL) {
              if(visibleInOvervieW(tAsk)) {
                // unhIde if Hidden.
                if(pair.fIrst.hasAttRIBUte(SVGCoNstaNTs.csS_VISIBILITY
: " + vis);
      return v is;
    }    i f(t ask .h as(R ende rFlag.NO_EXPOR T )) { 
      vis.getLayer(). setAt tr i bute ( SV GPlot .NO_EXP O RT _ A TTR IB UT E,SV G Pl ot.NO _EX PORT_AT TRIBUTE);   } 
    parent. a pp endChild(v is. getLayer()); 
   retu rn  vi s ;
  } 

 /**   * D o  a ref resh (whe nv isibil i ties ha v e  c hang ed).
   */
  sync h ro n ized void refr esh(){ i f(r ein itOnRefres h)  {
    LOG. d eb u g ( "Re i nitialize inthread " +T hre ad.cur re ntT h read() .getN am e ()) ;
      rei niti alize();     r einitOn R efresh= fals e;     r e tu rn ;
 }
 syn c hro nized(pl ot ){
     b o o l e an r efr eshc ss =false;
     if( plot m ap== nu ll) { 
      th row ne w Ill eg alStateExceptio n("P lotmap is  nu ll "); 
    } 
     fi nal  int th umbsize = ( in t ) Ma th.max(screenwidth  / p lo tmap.get Width( ) ,sc r eenheigh t/ p lotm a p .getH eigh t () );
     for(P l ot It em pi :  p lotmap .k eyS et( )) {      for (Iterato r<Plo t Item> iter = p i .itemIterator ( ); i te r .has Nex t();) {
       Pl otIt e mit=  iter .next () ; 
         for(Iterat or <Visua lizat ionTask> tit= it.tasks . i t erator() ; ti t .h a sNext();) {
          Visua l izationT ask t ask = ti t.next();          Pai r<E lem e n t,  Visualizatio n >  pai r= visto ele m.get(i t,tas k); 
          / / New ta sk ?        i f(pair = =nul l)  {           if( visi bl eI n Ove rview(t a sk ) )  {
          Ele ment ele m = plo t.svgElem ent ( SVGC on st ants.SV G_G_TAG);
             p air  = new P air<>(el em, embedOrThumbnail(th u mbsize,  it , tas k, e lem));
           visto elem.g et(it ,nul l ) .firs t . ap pen dC hild(elem) ;             visto elem.put(it, task, pai r);
             r e fr esh c ss = t ru e ;
           }
          }          e l seif (pair.f irst!=null) {
            if(visibl eI nOve r v iew (task)) {               / /  unhi d eif hi dde n.
            if( p air .firs t.hasA tt ribute (SVGC on stants.C SS_VISIBILITY
: "_+ vis);
_   _ return_vis;
_ __}
  _ if(task.has(RenderFlag.NO_EXPORT)) {
_   _ vis.getLayer().setAttribute(SVGPlot.NO_EXPORT_ATTRIBUTE, SVGPlot.NO_EXPORT_ATTRIBUTE);
__  }
    parent.appendChild(vis.getLayer());
    return vis;
  }

__/**
 __*_Do a refresh (when visibilities_have changed).
   */
_ synchronized_void refresh() {
    if(reinitOnRefresh) {
__  _ LOG.debug("Reinitialize in thread " + Thread.currentThread().getName());
  _   reinitialize();
  _  _reinitOnRefresh_=_false;
   _  return;
   _}
    synchronized(plot) {
_     boolean refreshcss_= false;
    _ if(plotmap == null) {
_ _    _throw new IllegalStateException("Plotmap_is null");
_  _  }
   _  final_int thumbsize = (int) Math.max(screenwidth /_plotmap.getWidth(),_screenheight / plotmap.getHeight());
___ _ for(PlotItem pi_:_plotmap.keySet()) {
__     _for(Iterator<PlotItem>_iter = pi.itemIterator(); iter.hasNext();) {
  _   __  PlotItem it_= iter.next();

   _     _for(Iterator<VisualizationTask> tit_= it.tasks.iterator();_tit.hasNext();) {
         _  VisualizationTask task = tit.next();
_   _ __  __Pair<Element, Visualization>_pair = vistoelem.get(it, task);
   _ _     _// New task?
 __     _   if(pair == null)_{
    ___    _  if(visibleInOverview(task)) {
  _  _      __  Element elem = plot.svgElement(SVGConstants.SVG_G_TAG);
__     ___    _ pair = new Pair<>(elem, embedOrThumbnail(thumbsize,_it, task, elem));
      _  _    __vistoelem.get(it,_null).first.appendChild(elem);
         _ _  _ vistoelem.put(it, task, pair);
      _      _  refreshcss = true;
      _       }
_      _   _}
_      ____ else if(pair.first!=_null) {
 _  _ _  _ _  if(visibleInOverview(task))_{
_               // unhide if_hidden.
     _    __  _ if(pair.first.hasAttribute(SVGConstants.CSS_VISIBILITY