CGAL users discussion list

[Simon Giraudot <>]

Hello,

Sorry you encountered trouble with CGAL Classification.

What version of CGAL are you using? Also, can you share a source code + the full error messages?

Best regards,

-- 
Simon Giraudot, PhD
R&D Engineer
GeometryFactory - http://geometryfactory.com/

Le 18/02/2020 à 19:12, Zhang Jinwei a écrit :

Dear Ms./Mr.,

Thank you for providing us this CGAL open source library. I am a research engineer working in the field of urban reconstruction.

I faced a problem, when I used the package Classification for point cloud and mesh classification. I want to train the classifier, and then classify the point cloud data by the trained classifier. 

So, firstly I used the example training dataset training_b9.ply, for training step by using ETHZ random forest, and save the configuration by function save_configuration as .gz file. And secondly, I load the produced configuration from last step using load_configuration, and classify the data by this trained classifier. 

However,  when I saved and loaded the configuration of classifier, it came out an unhandeled exception: boost::archive::archive_exception. I just used the example data file training_b9.ply for the whole procedure. 

So could you explain me what the reason is? And could you please help me and give me suggestions on how to solve it? What do I need to notice when I doing training and classification using configuration file? It would be better if you could provide me more examples in detail. 

Thank you very much for your support! Looking forward to your kindly reply!

Best regards,

Jinwei Zhang