double translated_x = (*ai)->when;
double translated_y = (*ai)->value;
model_to_view_coord (translated_x, translated_y);
add_model_point (tmp_points, (*ai)->when, translated_y);
}
double translated_x = (*ai)->when;
double translated_y = (*ai)->value;
model_to_view_coord (translated_x, translated_y);
add_model_point (tmp_points, (*ai)->when, translated_y);
}