Searched defs:_focus1 (Results 1 - 2 of 2) sorted by relevance

/inkscape/src/2geom/
H A Dconicsec.h176 * _focus1: section conic focus
179 xAx (const Point& _vertex, const Point& _focus1, const Point& _focus2) argument
181 set(_vertex, _focus1, _focus2);
231 void set (const Point& _vertex, const Point& _focus1, const Point& _focus2);
H A Dconicsec.cpp828 * _focus1: section conic focus
831 void xAx::set (const Point& _vertex, const Point& _focus1, const Point& _focus2) argument
839 if (at_infinity(_focus1))
843 Point VF = _focus1 - _vertex;
849 else if (at_infinity(_focus1))
857 assert (are_collinear (_vertex, _focus1, _focus2));
858 if (!are_near(_vertex, _focus1))
860 Point VF = _focus1 - _vertex;
861 Line axis(_vertex, _focus1);

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