int dataset UNUSED, double x, double y)
{
double x_pos = (x - geom->x_min) * geom->abscissa_scale + geom->data_left;
double y_pos = (y - geom->y_min) * geom->ordinate_scale + geom->data_bottom;
int dataset UNUSED, double x, double y)
{
double x_pos = (x - geom->x_min) * geom->abscissa_scale + geom->data_left;
double y_pos = (y - geom->y_min) * geom->ordinate_scale + geom->data_bottom;