How to use

initFromGraph

method

in

com.graphhopper.routing.ch.PrepareContractionHierarchies

@Override
public void doSpecificWork() {
  allSW.start();
  initFromGraph();
  runGraphContraction();
  logger.info("took:" + (int) allSW.stop().getSeconds() + "s "
      + ", new shortcuts: " + nf(nodeContractor.getAddedShortcutsCount())
      + ", initSize:" + nf(initSize)
      + ", " + prepareWeighting
      + ", periodic:" + params.getPeriodicUpdatesPercentage()
      + ", lazy:" + params.getLastNodesLazyUpdatePercentage()
      + ", neighbor:" + params.getNeighborUpdatePercentage()
      + ", " + getTimesAsString()
      + ", lazy-overhead: " + (int) (100 * ((checkCounter / (double) initSize) - 1)) + "%"
      + ", " + Helper.getMemInfo());
  int edgeCount = prepareGraph.getOriginalEdges();
  logger.info("graph now - num edges: {}, num nodes: {}, num shortcuts: {}",
      nf(edgeCount), nf(prepareGraph.getNodes()), nf(prepareGraph.getEdges() - edgeCount));
}

@Override
public void doWork()
{
  if (prepareFlagEncoder == null)
    throw new IllegalStateException("No vehicle encoder set.");
  if (prepareWeighting == null)
    throw new IllegalStateException("No weight calculation set.");
  allSW.start();
  super.doWork();
  initFromGraph();
  if (!prepareNodes())
    return;
  contractNodes();
}

@Override
public void doWork() {
  if (prepareWeighting == null)
    throw new IllegalStateException("No weight calculation set.");
  allSW.start();
  super.doWork();
  initFromGraph();
  if (!prepareNodes())
    return;
  contractNodes();
}

@Override
public void doSpecificWork() {
  allSW.start();
  initFromGraph();
  runGraphContraction();
  logger.info("took:" + (int) allSW.stop().getSeconds() + "s "
      + ", new shortcuts: " + nf(nodeContractor.getAddedShortcutsCount())
      + ", initSize:" + nf(initSize)
      + ", " + prepareWeighting
      + ", periodic:" + params.getPeriodicUpdatesPercentage()
      + ", lazy:" + params.getLastNodesLazyUpdatePercentage()
      + ", neighbor:" + params.getNeighborUpdatePercentage()
      + ", " + getTimesAsString()
      + ", lazy-overhead: " + (int) (100 * ((checkCounter / (double) initSize) - 1)) + "%"
      + ", " + Helper.getMemInfo());
  int edgeCount = ghStorage.getAllEdges().length();
  logger.info("graph now - num edges: {}, num nodes: {}, num shortcuts: {}",
      nf(edgeCount), nf(ghStorage.getNodes()), nf(prepareGraph.getAllEdges().length() - edgeCount));
}