void TO_ROW::add_blob( //constructor
BLOBNBOX *blob, //first blob
float top, //corrected top
float bottom, //of row
float row_size //ideal
) {
float allowed; //allowed expansion
float available; //expansion
BLOBNBOX_IT it = &blobs; //list of blobs
it.add_to_end (blob);
allowed = row_size + y_min - y_max;
if (allowed > 0) {
available = top > y_max ? top - y_max : 0;
if (bottom < y_min)
//total available
available += y_min - bottom;
if (available > 0) {
available += available; //do it gradually
if (available < allowed)
available = allowed;
if (bottom < y_min)
y_min -= (y_min - bottom) * allowed / available;
if (top > y_max)
y_max += (top - y_max) * allowed / available;
}
}
}
TO_ROW::TO_ROW ( //constructor
BLOBNBOX * blob, //first blob
float top, //corrected top
float bottom, //of row
float row_size //ideal
) {
clear();
y_min = bottom;
y_max = top;
initial_y_min = bottom;
float diff; //in size
BLOBNBOX_IT it = &blobs; //list of blobs
it.add_to_end (blob);
diff = top - bottom - row_size;
if (diff > 0) {
y_max -= diff / 2;
y_min += diff / 2;
}
//very small object
else if ((top - bottom) * 3 < row_size) {
diff = row_size / 3 + bottom - top;
y_max += diff / 2;
y_min -= diff / 2;
}
}
void TO_ROW::insert_blob( //constructor
BLOBNBOX *blob //first blob
) {
BLOBNBOX_IT it = &blobs; //list of blobs
if (it.empty ())
it.add_before_then_move (blob);
else {
it.mark_cycle_pt ();
while (!it.cycled_list ()
&& it.data ()->bounding_box ().left () <=
blob->bounding_box ().left ())
it.forward ();
if (it.cycled_list ())
it.add_to_end (blob);
else
it.add_before_stay_put (blob);
}
}
