Method filter

LASlib/src/lasfilter.cpp:1086–1090

  inline I32 get_command(CHAR* string) const { return sprintf(string, "-%s %g %g ", name(), below_NDVI, above_NDVI); };
  inline U32 get_decompress_selective() const { return LASZIP_DECOMPRESS_SELECTIVE_RGB | LASZIP_DECOMPRESS_SELECTIVE_INTENSITY; };
  inline BOOL filter(const LASpoint* point)
  {
    F32 NDVI = ((F32)(point->get_intensity() - point->get_R())) / ((F32)(point->get_intensity() + point->get_R()));
    return (NDVI < below_NDVI) || (above_NDVI < NDVI);
  };
  LAScriterionKeepNDVIintensityIsNIR(F32 below_NDVI, F32 above_NDVI) { if (above_NDVI < below_NDVI) { this->below_NDVI = above_NDVI; this->above_NDVI = below_NDVI; } else { this->below_NDVI = below_NDVI; this->above_NDVI = above_NDVI; }; };
private:
  F32 below_NDVI, above_NDVI;