55     bez->y3 = bez->y3 + t * (bez->y4 - bez->y3);  in split_left()
64     left->y4 = bez->y1 = left->y3 + t * (bez->y2 - left->y3);  in split_left()
83    second_half->y3 = (bez->y3 + bez->y4) * 0.5;  in split()
85    second_half->y4 = bez->y4;  in split()
88    first_half->y4  = second_half->y1 =  in split()
110       double y4y1 = b->y4 - b->y1;  in bezier_add_to_polygon()
124          polygon_vertex_append(poly, b->x4, b->y4);  in bezier_add_to_polygon()
142    len = len + line_length(bez->x3, bez->y3, bez->x4, bez->y4);  in add_if_close()
144    chord = line_length(bez->x1, bez->y1, bez->x4, bez->y4);  in add_if_close()
170                  float x4, float y4)  in bezier_init()  argument
179    bez->y4 = y4;  in bezier_init()
182                 x1, y1, x2, y2, x3, y3, x4, y4);  in bezier_init()
203    bez->y4 = pt4[1];  in bezier_init2v()
214    matrix_map_point(matrix, bez->x4, bez->y4, &bez->x4, &bez->y4);  in bezier_transform()
229    pt[1] = a*bez->y1 + b*bez->y2 + c*bez->y3 + d*bez->y4;  in bezier_point_at()
239    norm[0] =  (bez->y2-bez->y1) * a + (bez->y3-bez->y2) * b + (bez->y4-bez->y3) * c;  in bezier_normal_at()
338    VGboolean p3_p4_equal = (orig->x3 == orig->x4 && orig->y3 == orig->y4);  in shift()
364       points[np][1] = orig->y4;  in shift()
395                 (orig->y3 - orig->y4)*(orig->y3 - orig->y4);  in shift()
397                   (orig->y1 - orig->y2)*(orig->y3 - orig->y4);  in shift()
460    normals[2][0] = b->y4 - b->y3;  in make_circle()
469    normals[1][1] = b->y1 - b->y2 - b->y3 + b->y4;  in make_circle()
496    circle[1][1] = 0.5*(b->y1 + b->y4) + normals[1][1]*offset;  in make_circle()
499    circle[2][1] = b->y4 + normals[2][1]*offset;  in make_circle()
511       o->y4 = circle[i+1][1];  in make_circle()
529        bez->y1 == bez->y2 && bez->y1 == bez->y3 && bez->y1 == bez->y4)  in bezier_translate_by_normal()
609    if (bez->y4 < ymin)  in bezier_bounds()
610       ymin = bez->y4;  in bezier_bounds()
611    else if (bez->y4 > ymax)  in bezier_bounds()
612       ymax = bez->y4;  in bezier_bounds()
638       tangent[3] = bez->y4;  in bezier_start_tangent()