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Selecting instances only if one edge is visible 

This is supposed to avoid that you select guard ring
cells for example and move them while working
on small details.
This commit is contained in:
Matthias Koefferlein 2024-11-30 21:35:06 +01:00
parent e35aa97191
commit 692967921a
1 changed files with 11 additions and 3 deletions
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14
src/laybasic/laybasic/layFinder.cc
View File

@ -783,8 +783,11 @@ InstFinder::checkpoint ()
}
void
InstFinder::visit_cell (const db::Cell &cell, const db::Box &search_box, const db::Box & /*scan_box*/, const db::DCplxTrans & /*vp*/, const db::ICplxTrans &t, int level)
InstFinder::visit_cell (const db::Cell &cell, const db::Box &search_box, const db::Box & /*scan_box*/, const db::DCplxTrans &vp, const db::ICplxTrans &t, int level)
{
// Viewport in current cell coordinate space (DBU)
db::Box viewport_box = (vp * db::CplxTrans (layout ().dbu ()) * t).inverted () * db::DBox (0, 0, view ()->viewport ().width (), view ()->viewport ().height ());
if (! point_mode ()) {
++*mp_progress;
@ -909,11 +912,16 @@ InstFinder::visit_cell (const db::Cell &cell, const db::Box &search_box, const d
// convert to polygon and test those edges
db::Polygon poly (cell_inst.complex_trans (*p) * db::Polygon (ibox));
bool any_valid_edge = false;
for (db::Polygon::polygon_edge_iterator e = poly.begin_edge (); ! e.at_end (); ++e) {
test_edge (t, *e, d, match);
// only consider edges that cut through the viewport
if ((*e).clipped (viewport_box).first) {
any_valid_edge = true;
test_edge (t, *e, d, match);
}
}
if (! match && db::inside_poly (poly.begin_edge (), search_box.center ())) {
if (! match && any_valid_edge && db::inside_poly (poly.begin_edge (), search_box.center ())) {
d = t.ctrans (poly_dist (poly.begin_edge (), search_box.center ()));
match = true;
}