Hi Martin, I'm interested in retrieving and setting all the eight bits at once. I need to copy all the classification information and doing it in four steps (class, withheld, synthetic, and key_point) would be ineffective.
And yes, presently there is *no* way (that I can see) to set the higher three bits, as there is no way to get a non-const reference to Classification: >> there is no "Classification & GetClassification();" -- it is commented out >> -- I can't do GetClassification().SetSynthetic( true ); Regards, Peder On 24 okt 2011, at 15:44, Martin Isenburg wrote: > hi, > > LAS only defines the lower 5 bits as classification bits. so is your > question how to set the "withheld" or "synthetic" bit? Or are you > saying the "setSynthetic()" function is not existing or working > properly? > > cheers, > > martin @lastools > > 2011/10/24 Peder Axensten <[email protected]>: >> I posted the text below some time ago, but got no answer. >> How can I report a bug? >> I went to the tracker but I found no information on how to do it? >> >> Best regards, >> >> Peder Axensten >> Research engineer >> >> Swedish University of Agricultural Sciences >> Dept. of Forest Resource Management >> Forest Remote Sensing >> >> >> >> ********************** >> >> I have a problem to write classification data into a point class instance. >> liblas gives the following ways to access the point's classification data >> (from point.hpp): >> >> //Classification& GetClassification(); >> Classification GetClassification() const; >> void SetClassification(Classification const& cls); >> void SetClassification(Classification::bitset_type const& flags); >> void SetClassification(boost::uint8_t const& flags); >> >> My problem is that all SetClassification member functions filter away the >> high-end bits (the Synthetic, KeyPoint, and Withheld bits). So if I do >> >> SetClassification( liblas::Classification( 0x22 ) ), >> SetClassification( static_cast< liblas::Classification::bitset_type >( 0x22 >> ) ), or >> SetClassification( 0x22 ) >> >> GetClassification() will always return 0x02. >> >> Also, since there is no "Classification & GetClassification();" -- it is >> commented out -- I can't do GetClassification().SetSynthetic( true ); >> (I'd prefer not to set the higher bits in this roundabout way, though.) >> >> >> >> So to me it seems that there is no way to setting the higher bits? >> And what is the rationale behind the SetClassification filtering away the >> high-end bits? >> What am I not understanding? >> >> Best regards, >> >> Peder Axensten >> Research engineer >> >> Swedish University of Agricultural Sciences >> Dept. of Forest Resource Management >> Forest Remote Sensing >> _______________________________________________ >> Liblas-devel mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/liblas-devel >> _______________________________________________ Liblas-devel mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/liblas-devel
