[pgpointcloud] Get points using pqxx

[David Serret Mayer]

Hey, I am using pqxx for C++.
However when I try to get the points of a patch(I am currently using the
same tables as the examples on the Readme) I get always a string. Is there
a smarter way to get it done without parsing?

This is my code:

>
> #include <iostream>
> #include <pqxx/pqxx>
>
>
> int main(int, char *argv[])
> {
>   pqxx::connection c;
>   pqxx::work txn(c);
>
>   pqxx::result r = txn.exec("select (pc_get(pc_explode(pa))) from patches
> ;");
>
>   std::cout << r.size() << std::endl;
>
>   for(const auto &q : r){
>     for( const auto &m : q){
>       std::cout << m << std::endl;
>     }
>   }
> }
>

I have tried using the binary functions, but I can't really decode the
data. Is there an example of that somewhere?.

Thank you very much,
-- 
*David Serret *- R&D Engineer at Eigen Dynamics SL
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