areaSign          299 modules/imgproc/src/geometry.cpp     if( areaSign(a, b, c) != 0 )
areaSign          419 modules/imgproc/src/geometry.cpp         int cross = areaSign( Origin, A, B );    // sign of z-component of A x B
areaSign          420 modules/imgproc/src/geometry.cpp         int aHB = areaSign( Q[b1], Q[b], P[a] ); // a in H(b).
areaSign          421 modules/imgproc/src/geometry.cpp         int bHA = areaSign( P[a1], P[a], Q[b] ); // b in H(A);
areaSign          581 modules/videostab/src/motion_stabilizing.cpp     return areaSign(a,b,c) * areaSign(a,b,d) < 0 &&
areaSign          582 modules/videostab/src/motion_stabilizing.cpp            areaSign(c,d,a) * areaSign(c,d,b) < 0;