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FIX: avoid wipe tower conflict with objects

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Use a more accurate way to estimate wipe tower:
1. read wipe configure from front-end (the positions may be different at
different plates).
2. when depth is unavailable, use all materials to estimate depth (the
estimated wipe tower may be larger than the actual generated one).

Change-Id: I42ffd03d9817b57f5023a6820cda0032509c6fe5
(cherry picked from commit 77ba9757023afb9160c996eeea6ead8a27b50ce4)
This commit is contained in:
manch1n 2023-04-07 21:52:59 +08:00 • committed by Lane.Wei
parent 67d95d3fc8
commit dd473bdc3f
6 changed files with 71 additions and 35 deletions
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32
src/libnest2d/include/libnest2d/placers/nfpplacer.hpp
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@ -1064,27 +1064,9 @@ private:
if (!item.is_virt_object)
bb = sl::boundingBox(item.boundingBox(), bb);
// if move to center is infeasible, move to topright corner instead
auto alignment = config_.alignment;
if (!config_.m_excluded_regions.empty() && alignment== Config::Alignment::CENTER) {
Box bb2 = bb;
auto d = bbin.center() - bb2.center();
d.x() = std::max(d.x(), 0);
d.y() = std::max(d.y(), 0);
bb2.minCorner() += d;
bb2.maxCorner() += d;
for (auto& region : config_.m_excluded_regions) {
auto region_bb = region.boundingBox();
if (bb2.intersection(region_bb).area()>0) {
alignment = Config::Alignment::TOP_RIGHT;
break;
}
}
}
Vertex ci, cb;
switch(alignment) {
switch(config_.alignment) {
case Config::Alignment::CENTER: {
ci = bb.center();
cb = bbin.center();
@ -1118,6 +1100,13 @@ private:
// BBS make sure the item won't clash with excluded regions
if(1)
{
// do we have wipe tower after arranging?
std::set<int> extruders;
for (const Item& item : items_) {
if (!item.is_virt_object) { extruders.insert(item.extrude_ids.begin(), item.extrude_ids.end()); }
}
bool need_wipe_tower = extruders.size() > 1;
std::vector<RawShape> objs,excludes;
for (const Item &item : items_) {
if (item.isFixed()) continue;
@ -1127,7 +1116,10 @@ private:
if (objs.size() != 0) {
for (const Item &item : config_.m_excluded_regions) { excludes.push_back(item.transformedShape()); }
for (const Item &item : items_) {
if (item.isFixed()) { excludes.push_back(item.transformedShape()); }
if (item.isFixed()) {
if (!(item.is_wipe_tower && !need_wipe_tower))
excludes.push_back(item.transformedShape());
}
}
Box binbb = sl::boundingBox(bin_);
auto allowShifts = calcnfp(objs_convex_hull, excludes, binbb, Lvl<MaxNfpLevel::value>());