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#include "Layer.hpp"
#include "ClipperUtils.hpp"
#include "PerimeterGenerator.hpp"
#include "Print.hpp"
#include "Surface.hpp"
namespace Slic3r {
LayerRegion::LayerRegion(Layer *layer, PrintRegion *region)
: _layer(layer),
_region(region)
{
}
LayerRegion::~LayerRegion()
{
}
Layer*
LayerRegion::layer()
{
return this->_layer;
}
PrintRegion*
LayerRegion::region()
{
return this->_region;
}
Flow
LayerRegion::flow(FlowRole role, bool bridge, double width) const
{
return this->_region->flow(
role,
this->_layer->height,
bridge,
this->_layer->id() == 0,
width,
*this->_layer->object()
);
}
void
LayerRegion::merge_slices()
{
ExPolygons expp;
// without safety offset, artifacts are generated (GH #2494)
union_(this->slices, &expp, true);
this->slices.surfaces.clear();
this->slices.surfaces.reserve(expp.size());
for (ExPolygons::const_iterator expoly = expp.begin(); expoly != expp.end(); ++expoly)
this->slices.surfaces.push_back(Surface(stInternal, *expoly));
}
void
LayerRegion::make_perimeters(const SurfaceCollection &slices, SurfaceCollection* fill_surfaces)
{
this->perimeters.clear();
this->thin_fills.clear();
PerimeterGenerator g(
// input:
&slices,
this->layer()->height,
this->flow(frPerimeter),
&this->region()->config,
&this->layer()->object()->config,
&this->layer()->object()->print()->config,
// output:
&this->perimeters,
&this->thin_fills,
fill_surfaces
);
if (this->layer()->lower_layer != NULL)
g.lower_slices = &this->layer()->lower_layer->slices;
g.layer_id = this->layer()->id();
g.ext_perimeter_flow = this->flow(frExternalPerimeter);
g.overhang_flow = this->region()->flow(frPerimeter, -1, true, false, -1, *this->layer()->object());
g.solid_infill_flow = this->flow(frSolidInfill);
g.process();
}
void
LayerRegion::prepare_fill_surfaces()
{
/* Note: in order to make the psPrepareInfill step idempotent, we should never
alter fill_surfaces boundaries on which our idempotency relies since that's
the only meaningful information returned by psPerimeters. */
// if no solid layers are requested, turn top/bottom surfaces to internal
if (this->region()->config.top_solid_layers == 0) {
for (Surfaces::iterator surface = this->fill_surfaces.surfaces.begin(); surface != this->fill_surfaces.surfaces.end(); ++surface) {
if (surface->surface_type == stTop) {
if (this->layer()->object()->config.infill_only_where_needed) {
surface->surface_type = stInternalVoid;
} else {
surface->surface_type = stInternal;
}
}
}
}
if (this->region()->config.bottom_solid_layers == 0) {
for (Surfaces::iterator surface = this->fill_surfaces.surfaces.begin(); surface != this->fill_surfaces.surfaces.end(); ++surface) {
if (surface->surface_type == stBottom || surface->surface_type == stBottomBridge)
surface->surface_type = stInternal;
}
}
// turn too small internal regions into solid regions according to the user setting
if (this->region()->config.fill_density.value > 0) {
// scaling an area requires two calls!
double min_area = scale_(scale_(this->region()->config.solid_infill_below_area.value));
for (Surfaces::iterator surface = this->fill_surfaces.surfaces.begin(); surface != this->fill_surfaces.surfaces.end(); ++surface) {
if (surface->surface_type == stInternal && surface->area() <= min_area)
surface->surface_type = stInternalSolid;
}
}
}
#ifdef SLIC3RXS
REGISTER_CLASS(LayerRegion, "Layer::Region");
#endif
}
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