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fix rotation for initial placement

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This commit is contained in:
tamasmeszaros 2020-11-30 20:48:45 +01:00
parent 8027f6608a
commit 3e73473334
1 changed files with 71 additions and 55 deletions
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126
src/libnest2d/include/libnest2d/placers/nfpplacer.hpp
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@ -663,62 +663,79 @@ private:
remlist.insert(remlist.end(), remaining.from, remaining.to);
}
double global_score = std::numeric_limits<double>::max();
auto initial_tr = item.translation();
auto initial_rot = item.rotation();
Vertex final_tr = {0, 0};
Radians final_rot = initial_rot;
Shapes nfps;
auto& bin = bin_;
double norm = norm_;
auto pbb = sl::boundingBox(merged_pile_);
auto binbb = sl::boundingBox(bin);
// This is the kernel part of the object function that is
// customizable by the library client
std::function<double(const Item&)> _objfunc;
if(config_.object_function) _objfunc = config_.object_function;
else {
// Inside check has to be strict if no alignment was enabled
std::function<double(const Box&)> ins_check;
if(config_.alignment == Config::Alignment::DONT_ALIGN)
ins_check = [&binbb, norm](const Box& fullbb) {
double ret = 0;
if(!sl::isInside(fullbb, binbb))
ret += norm;
return ret;
};
else
ins_check = [&bin](const Box& fullbb) {
double miss = overfit(fullbb, bin);
miss = miss > 0? miss : 0;
return std::pow(miss, 2);
};
_objfunc = [norm, binbb, pbb, ins_check](const Item& item)
{
auto ibb = item.boundingBox();
auto fullbb = sl::boundingBox(pbb, ibb);
double score = pl::distance(ibb.center(),
binbb.center());
score /= norm;
score += ins_check(fullbb);
return score;
};
}
if(items_.empty()) {
setInitialPosition(item);
auto best_tr = item.translation();
auto best_rot = item.rotation();
best_overfit = overfit(item.transformedShape(), bin_);
can_pack = best_overfit <= 0;
} else {
double global_score = std::numeric_limits<double>::max();
auto initial_tr = item.translation();
auto initial_rot = item.rotation();
Vertex final_tr = {0, 0};
Radians final_rot = initial_rot;
Shapes nfps;
auto& bin = bin_;
double norm = norm_;
auto pbb = sl::boundingBox(merged_pile_);
auto binbb = sl::boundingBox(bin);
// This is the kernel part of the object function that is
// customizable by the library client
std::function<double(const Item&)> _objfunc;
if(config_.object_function) _objfunc = config_.object_function;
else {
// Inside check has to be strict if no alignment was enabled
std::function<double(const Box&)> ins_check;
if(config_.alignment == Config::Alignment::DONT_ALIGN)
ins_check = [&binbb, norm](const Box& fullbb) {
double ret = 0;
if(!sl::isInside(fullbb, binbb))
ret += norm;
return ret;
};
else
ins_check = [&bin](const Box& fullbb) {
double miss = overfit(fullbb, bin);
miss = miss > 0? miss : 0;
return std::pow(miss, 2);
};
_objfunc = [norm, binbb, pbb, ins_check](const Item& item)
{
auto ibb = item.boundingBox();
auto fullbb = sl::boundingBox(pbb, ibb);
double score = pl::distance(ibb.center(),
binbb.center());
score /= norm;
score += ins_check(fullbb);
return score;
};
for(auto rot : config_.rotations) {
item.translation(initial_tr);
item.rotation(initial_rot + rot);
setInitialPosition(item);
double of = 0.;
if ((of = overfit(item.transformedShape(), bin_)) < best_overfit) {
best_overfit = of;
best_tr = item.translation();
best_rot = item.rotation();
}
}
can_pack = best_overfit <= 0;
item.rotation(best_rot);
item.translation(best_tr);
} else {
Pile merged_pile = merged_pile_;
for(auto rot : config_.rotations) {
@ -948,10 +965,9 @@ private:
if(items_.empty() ||
config_.alignment == Config::Alignment::DONT_ALIGN) return;
nfp::Shapes<RawShape> m;
m.reserve(items_.size());
for(Item& item : items_) m.emplace_back(item.transformedShape());
auto&& bb = sl::boundingBox(m);
Box bb = items_.front().get().boundingBox();
for(Item& item : items_)
bb = sl::boundingBox(item.boundingBox(), bb);
Vertex ci, cb;
@ -988,7 +1004,7 @@ private:
for(Item& item : items_) item.translate(d);
}
void setInitialPosition(Item& item) {
void setInitialPosition(Item& item) {
Box bb = item.boundingBox();
Vertex ci, cb;