bool OptimizeAreaWayIdsGenerator::ScanAreaIds(const ImportParameter& parameter,
Progress& progress,
const TypeConfig& typeConfig,
NodeUseMap& nodeUseMap)
{
FileScanner scanner;
uint32_t dataCount=0;
progress.SetAction("Scanning ids from 'areas2.tmp'");
if (!scanner.Open(AppendFileToDir(parameter.GetDestinationDirectory(),
"areas2.tmp"),
FileScanner::Sequential,
parameter.GetAreaDataMemoryMaped())) {
progress.Error(std::string("Cannot open '")+scanner.GetFilename()+"'");
return false;
}
if (!scanner.Read(dataCount)) {
progress.Error("Error while reading number of data entries in file");
return false;
}
for (uint32_t current=1; current<=dataCount; current++) {
uint8_t type;
Id id;
Area data;
progress.SetProgress(current,dataCount);
if (!scanner.Read(type) ||
!scanner.Read(id) ||
!data.ReadImport(typeConfig,
scanner)) {
progress.Error(std::string("Error while reading data entry ")+
NumberToString(current)+" of "+
NumberToString(dataCount)+
" in file '"+
scanner.GetFilename()+"'");
return false;
}
for (const auto& ring: data.rings) {
std::unordered_set<Id> nodeIds;
if (!ring.GetType()->CanRoute()) {
continue;
}
for (const auto id: ring.ids) {
if (nodeIds.find(id)==nodeIds.end()) {
nodeUseMap.SetNodeUsed(id);
nodeIds.insert(id);
}
}
}
}
if (!scanner.Close()) {
progress.Error(std::string("Error while closing file '")+
scanner.GetFilename()+"'");
return false;
}
return true;
}
/**
* Scans all areas. If an areas is of one of the given merge types, index all node ids
* into the given NodeUseMap for all outer rings of the given area.
*/
bool MergeAreasGenerator::ScanAreaNodeIds(Progress& progress,
const TypeConfig& typeConfig,
FileScanner& scanner,
const TypeInfoSet& mergeTypes,
std::unordered_set<Id>& nodeUseMap)
{
uint32_t areaCount=0;
progress.SetAction("Scanning for nodes joining areas from '"+scanner.GetFilename()+"'");
scanner.GotoBegin();
scanner.Read(areaCount);
uint8_t type;
Id id;
Area data;
std::unordered_set<Id> usedOnceSet;
for (uint32_t current=1; current<=areaCount; current++) {
progress.SetProgress(current,areaCount);
scanner.Read(type);
scanner.Read(id);
data.ReadImport(typeConfig,
scanner);
if (!mergeTypes.IsSet(data.GetType())) {
continue;
}
// We insert every node id only once per area, because we want to
// find nodes that are shared by *different* areas.
std::unordered_set<Id> nodeIds;
for (const auto& ring: data.rings) {
if (!ring.IsOuterRing()) {
continue;
}
for (const auto node : ring.nodes) {
Id id=node.GetId();
if (nodeIds.find(id)==nodeIds.end()) {
auto entry=usedOnceSet.find(id);
if (entry!=usedOnceSet.end()) {
nodeUseMap.insert(id);
}
else {
usedOnceSet.insert(id);
}
nodeIds.insert(id);
}
}
}
}
return true;
}
bool OptimizeAreaWayIdsGenerator::CopyAreas(const ImportParameter& parameter,
Progress& progress,
const TypeConfig& typeConfig,
NodeUseMap& nodeUseMap)
{
FileScanner scanner;
FileWriter writer;
uint32_t areaCount=0;
if (!writer.Open(AppendFileToDir(parameter.GetDestinationDirectory(),
"areas3.tmp"))) {
progress.Error(std::string("Cannot create '")+writer.GetFilename()+"'");
return false;
}
writer.Write(areaCount);
progress.SetAction("Copy data from 'areas2.tmp' to 'areas3.tmp'");
if (!scanner.Open(AppendFileToDir(parameter.GetDestinationDirectory(),
"areas2.tmp"),
FileScanner::Sequential,
parameter.GetAreaDataMemoryMaped())) {
progress.Error(std::string("Cannot open '")+scanner.GetFilename()+"'");
return false;
}
if (!scanner.Read(areaCount)) {
progress.Error("Error while reading number of data entries in file");
return false;
}
for (uint32_t current=1; current<=areaCount; current++) {
uint8_t type;
Id id;
Area data;
progress.SetProgress(current,areaCount);
if (!scanner.Read(type) ||
!scanner.Read(id) ||
!data.ReadImport(typeConfig,
scanner)) {
progress.Error(std::string("Error while reading data entry ")+
NumberToString(current)+" of "+
NumberToString(areaCount)+
" in file '"+
scanner.GetFilename()+"'");
return false;
}
for (auto& ring : data.rings) {
std::unordered_set<Id> nodeIds;
for (auto& id : ring.ids) {
if (!nodeUseMap.IsNodeUsedAtLeastTwice(id)) {
id=0;
}
}
}
if (!writer.Write(type) ||
!writer.Write(id) ||
!data.Write(typeConfig,
writer)) {
progress.Error(std::string("Error while writing data entry to file '")+
writer.GetFilename()+"'");
return false;
}
}
if (!scanner.Close()) {
progress.Error(std::string("Error while closing file '")+
scanner.GetFilename()+"'");
return false;
}
if (!writer.SetPos(0)) {
return false;
}
if (!writer.Write(areaCount)) {
return false;
}
if (!writer.Close()) {
progress.Error(std::string("Error while closing file '")+
writer.GetFilename()+"'");
return false;
}
return true;
}