92     float angle;  in bowl_view_image_to_world()  local
106         angle = degree2radian (config.angle_start + img_pos.x * angle_step);  in bowl_view_image_to_world()
109         if(XCAM_DOUBLE_EQUAL_AROUND (angle, PI / 2)) {  in bowl_view_image_to_world()
112         } else if (XCAM_DOUBLE_EQUAL_AROUND (angle, PI * 3 / 2)) {  in bowl_view_image_to_world()
115         } else if((angle < PI / 2) || (angle > PI * 3 / 2)) {  in bowl_view_image_to_world()
116             world.x = sqrt(r2 * a * a * b * b / (b * b + a * a * tan(angle) * tan(angle)));  in bowl_view_image_to_world()
117             world.y = -world.x * tan(angle);  in bowl_view_image_to_world()
119             world.x = -sqrt(r2 * a * a * b * b / (b * b + a * a * tan(angle) * tan(angle)));  in bowl_view_image_to_world()
120             world.y = -world.x * tan(angle);  in bowl_view_image_to_world()
133         angle = degree2radian (config.angle_start + img_pos.x * angle_step);  in bowl_view_image_to_world()
135         if(XCAM_DOUBLE_EQUAL_AROUND (angle, PI / 2)) {  in bowl_view_image_to_world()
138         } else if (XCAM_DOUBLE_EQUAL_AROUND (angle, PI * 3 / 2)) {  in bowl_view_image_to_world()
141         } else if((angle < PI / 2) || (angle > PI * 3 / 2)) {  in bowl_view_image_to_world()
142             world.x = a * b / sqrt(b * b + a * a * tan(angle) * tan(angle));  in bowl_view_image_to_world()
143             world.y = -world.x * tan(angle);  in bowl_view_image_to_world()
145             world.x = -a * b / sqrt(b * b + a * a * tan(angle) * tan(angle));  in bowl_view_image_to_world()
146             world.y = -world.x * tan(angle);  in bowl_view_image_to_world()