C++ ossimRefPtr::getClassName方法代码示例

// Private method:
bool ossimTiledElevationDatabase::isDirectoryBasedImage(ossimRefPtr<ossimImageHandler> ih)
{
   bool result = false;
   if ( ih.valid() )
   {
      // Get the image handler name.
      ossimString imageHandlerName = ih->getClassName();
      if ( (imageHandlerName == "ossimAdrgTileSource") ||
           (imageHandlerName == "ossimCibCadrgTileSource") )  
      {
         result = true;
      }
   }
   return result;
}

bool ossimImageUtil::hasRequiredOverview( ossimRefPtr<ossimImageHandler>& ih,
                                          ossimRefPtr<ossimOverviewBuilderBase>& ob )
{
   bool result = false;
   if ( ih.valid() && ob.valid() && ( getCopyAllFlag() == false ) )
   {
      if ( ih->getClassName() == "ossimCcfTileSource" )
      {
         // CCF reader does not use external overviews.
         result = true;
      }
      else
      {
         // Note we always have one rset
         ossim_uint32 required = 1;
         
         ossim_uint32 startingResLevel      = ih->getNumberOfDecimationLevels();
         ossim_uint32 overviewStopDimension = ob->getOverviewStopDimension();
         
         ossim_uint32 largestImageDimension =
            ih->getNumberOfSamples(0) >
            ih->getNumberOfLines(0) ?
            ih->getNumberOfSamples(0) :
            ih->getNumberOfLines(0);
         
         while(largestImageDimension > overviewStopDimension)
         {
            largestImageDimension /= 2;
            ++required;
         }
         
         if ( startingResLevel >= required )
         {
            result = true;
         }
      }
   }
   return result;
}

// Create overview for entry:
void ossimImageUtil::createOverview(ossimRefPtr<ossimImageHandler>& ih,
                                    ossimRefPtr<ossimOverviewBuilderBase>& ob,
                                    ossim_uint32 entry,
                                    bool useEntryIndex,
                                    bool& consumedHistogramOptions)
{
   static const char M[] = "ossimImageUtil::createOverview #2";
   if(traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG) << M << " entered...\n";
   }
   
   if ( ih.valid() && ob.valid() )
   {
      if (useEntryIndex)
      {
         // Set entry before deriving file name.
         ih->setCurrentEntry(entry);
         ossimNotify(ossimNotifyLevel_NOTICE) << "entry number: "<< entry << std::endl;
      }
      
      ossimFilename outputFile =
         ih->getFilenameWithThisExtension(ossimString(".ovr"), useEntryIndex);
      
      if ( rebuildOverviews() )
      {
         ih->closeOverview(); 
         if ( outputFile.exists() )
         {
            outputFile.remove();
         }
      }

      if ( getInternalOverviewsFlag() )
      {
         if ( ih->getClassName() == "ossimTiffTileSource")
         {
            //---
            // INTERNAL_OVERVIEWS_FLAG_KW is set to true:
            // Tiff reader can handle internal overviews.  Set the output file to
            // input file.  Do it after the above remove so that if there were
            // external overviews they will get removed.
            //---
            outputFile = ih->getFilename();
         }
         else 
         {
            ossimNotify(ossimNotifyLevel_NOTICE)
               << "Internal overviews not supported for reader type: "
               <<ih->getClassName()
               << "\nIgnoring option..."
               << endl;
         }
      }

      if ( hasRequiredOverview( ih, ob ) == false )
      {
         //---
         // Set create histogram code...
         //
         // Notes:
         // 1) Must put this logic after any removal of external overview file.
         // 
         // 2) Base file could have built in overviews, e.g. jp2 files.  So the sequensor could
         //    start at R6 even if there is no external overview file.
         //
         // 3) If user want the histogram from R0 the overview builder can do as long as
         //    ossimImageHandler::getNumberOfDecimationLevels returns 1.  If we are starting
         //    overview building at R6 then we must do the create histogram in a separate path.
         //---
         ossimHistogramMode histoMode = OSSIM_HISTO_MODE_UNKNOWN;
         if ( createHistogram() ||
              ( createHistogramR0() && ( ih->getNumberOfDecimationLevels() == 1 ) ) )
         {
            histoMode = OSSIM_HISTO_MODE_NORMAL;
         }
         else if ( createHistogramFast() )
         {
            histoMode = OSSIM_HISTO_MODE_FAST;
         }
         
         if(traceDebug())
         {
            ossimNotify(ossimNotifyLevel_DEBUG) << "Histogram mode: " << histoMode << "\n";
         }
         
         if ( histoMode != OSSIM_HISTO_MODE_UNKNOWN )
         {
            consumedHistogramOptions = true;
            ob->setHistogramMode(histoMode);
            
            ossimNotify(ossimNotifyLevel_NOTICE)
               << "Creating overviews with histogram for file: " << ih->getFilename() << std::endl;
         }
         else
         {
            if ( histoMode != OSSIM_HISTO_MODE_UNKNOWN )
            {
               consumedHistogramOptions = false;  
//.........这里部分代码省略.........