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#include "FillBedJob.hpp"
#include "libslic3r/Model.hpp"
#include "libslic3r/ClipperUtils.hpp"
#include "slic3r/GUI/Plater.hpp"
#include "slic3r/GUI/GLCanvas3D.hpp"
#include "slic3r/GUI/GUI_ObjectList.hpp"
#include <numeric>
namespace Slic3r {
namespace GUI {
void FillBedJob::prepare()
{
m_selected.clear();
m_unselected.clear();
m_bedpts.clear();
m_object_idx = m_plater->get_selected_object_idx();
if (m_object_idx == -1)
return;
ModelObject *model_object = m_plater->model().objects[m_object_idx];
if (model_object->instances.empty()) return;
m_selected.reserve(model_object->instances.size());
for (ModelInstance *inst : model_object->instances)
if (inst->printable) {
ArrangePolygon ap = get_arrange_poly(PtrWrapper{inst}, m_plater);
// Existing objects need to be included in the result. Only
// the needed amount of object will be added, no more.
++ap.priority;
m_selected.emplace_back(ap);
}
if (m_selected.empty()) return;
m_bedpts = get_bed_shape(*m_plater->config());
auto &objects = m_plater->model().objects;
BoundingBox bedbb = get_extents(m_bedpts);
for (size_t idx = 0; idx < objects.size(); ++idx)
if (int(idx) != m_object_idx)
for (ModelInstance *mi : objects[idx]->instances) {
ArrangePolygon ap = get_arrange_poly(PtrWrapper{mi}, m_plater);
auto ap_bb = ap.transformed_poly().contour.bounding_box();
if (ap.bed_idx == 0 && !bedbb.contains(ap_bb))
ap.bed_idx = arrangement::UNARRANGED;
m_unselected.emplace_back(ap);
}
if (auto wt = get_wipe_tower_arrangepoly(*m_plater))
m_unselected.emplace_back(std::move(*wt));
double sc = scaled<double>(1.) * scaled(1.);
ExPolygon poly = m_selected.front().poly;
double poly_area = poly.area() / sc;
double unsel_area = std::accumulate(m_unselected.begin(),
m_unselected.end(), 0.,
[](double s, const auto &ap) {
return s + (ap.bed_idx == 0) * ap.poly.area();
}) / sc;
double fixed_area = unsel_area + m_selected.size() * poly_area;
double bed_area = Polygon{m_bedpts}.area() / sc;
// This is the maximum number of items, the real number will always be close but less.
int needed_items = (bed_area - fixed_area) / poly_area;
int sel_id = m_plater->get_selection().get_instance_idx();
// if the selection is not a single instance, choose the first as template
sel_id = std::max(sel_id, 0);
ModelInstance *mi = model_object->instances[sel_id];
ArrangePolygon template_ap = get_arrange_poly(PtrWrapper{mi}, m_plater);
for (int i = 0; i < needed_items; ++i) {
ArrangePolygon ap = template_ap;
ap.poly = m_selected.front().poly;
ap.bed_idx = arrangement::UNARRANGED;
ap.setter = [this, mi](const ArrangePolygon &p) {
ModelObject *mo = m_plater->model().objects[m_object_idx];
ModelInstance *inst = mo->add_instance(*mi);
inst->apply_arrange_result(p.translation.cast<double>(), p.rotation);
};
m_selected.emplace_back(ap);
}
m_status_range = m_selected.size();
// The strides have to be removed from the fixed items. For the
// arrangeable (selected) items bed_idx is ignored and the
// translation is irrelevant.
double stride = bed_stride(m_plater);
for (auto &p : m_unselected)
if (p.bed_idx > 0)
p.translation(X) -= p.bed_idx * stride;
}
void FillBedJob::process()
{
if (m_object_idx == -1 || m_selected.empty()) return;
const GLCanvas3D::ArrangeSettings &settings =
static_cast<const GLCanvas3D*>(m_plater->canvas3D())->get_arrange_settings();
arrangement::ArrangeParams params;
params.allow_rotations = settings.enable_rotation;
params.min_obj_distance = scaled(settings.distance);
bool do_stop = false;
params.stopcondition = [this, &do_stop]() {
return was_canceled() || do_stop;
};
params.progressind = [this](unsigned st) {
if (st > 0)
update_status(int(m_status_range - st), _(L("Filling bed")));
};
params.on_packed = [&do_stop] (const ArrangePolygon &ap) {
do_stop = ap.bed_idx > 0 && ap.priority == 0;
};
arrangement::arrange(m_selected, m_unselected, m_bedpts, params);
// finalize just here.
update_status(m_status_range, was_canceled() ?
_(L("Bed filling canceled.")) :
_(L("Bed filling done.")));
}
void FillBedJob::finalize()
{
// Ignore the arrange result if aborted.
if (was_canceled()) return;
if (m_object_idx == -1) return;
ModelObject *model_object = m_plater->model().objects[m_object_idx];
if (model_object->instances.empty()) return;
size_t inst_cnt = model_object->instances.size();
for (ArrangePolygon &ap : m_selected) {
if (ap.bed_idx != arrangement::UNARRANGED && (ap.priority != 0 || ap.bed_idx == 0))
ap.apply();
}
model_object->ensure_on_bed();
m_plater->update();
int added_cnt = std::accumulate(m_selected.begin(), m_selected.end(), 0,
[](int s, auto &ap) {
return s + int(ap.priority == 0 && ap.bed_idx == 0);
});
// FIXME: somebody explain why this is needed for increase_object_instances
if (inst_cnt == 1) added_cnt++;
if (added_cnt > 0)
m_plater->sidebar()
.obj_list()->increase_object_instances(m_object_idx, size_t(added_cnt));
}
}} // namespace Slic3r::GUI
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