message: temp fix for missing numChannels in PCD.cpp
diff: @@ -494,6 +494,7 @@ int readPCDBodyBinary(const FileName &fileName, PCDData &pcdData)
  // map size calculation starting at dataId
  std::size_t mapSize = offset + dataId;
  + auto numChannels = pcdData.hData.fields.size();
  int stride = 0;
  for (auto f : pcdData.hData.fields)
  stride += f.size * f.count;
  