id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12106	Assertion in envelope() seems to be wrong	karsten	Barend Gehrels	"Hi,

the following code stops with an assertion. It seems that the check for the aequator in algorithms/detail/envelope/segment.hpp:compute_box_corners() is not correct. 

{{{
#include <boost/geometry.hpp>
#include <iostream>

using namespace std;

namespace bg = boost::geometry;

typedef bg::cs::spherical_equatorial< boost::geometry::degree > cs_type;
typedef bg::model::point< double , 2 , cs_type > point_type;
typedef bg::model::box< point_type > box_type;
typedef bg::model::segment< point_type> segment_type;
    
int main( int argc , char *argv[] )
{
    auto segment = segment_type { point_type { 11.488323611111111 , 53.687086666666673 } , { 11.488324166666667 , 53.687086666666673 } };
    auto box = box_type {};
    bg::envelope( segment , box );
    return 0;
}
}}}

The problem does not occur in version 1.58 and earlier.
"	Bugs	closed	Boost 1.61.0	geometry	Boost 1.60.0	Problem	fixed	envelope