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/inkscape/src/helper/
H A Dgeom-pathstroke.cpp727 Geom::Point der2 = derivs[2]; // second deriv (tangent's tangent) local
736 l = Geom::L2(der2);
745 rad = -l * (Geom::dot(der2, der2) / Geom::cross(der2, der3));
748 rad = -l * (Geom::dot(der1, der1) / Geom::cross(der1, der2));

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