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ENH: popup different warning message for unsupported sharp tails

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1. unsupported sharp tails and large overhang have different messages
2. do not popup warning for total area (only warning for one single
   large overhang)

Change-Id: I153e559915a92c6676468539cf619dafe915f997
(cherry picked from commit 67b593150f8de847d9b1999bf0d7a549eb1ef154)
This commit is contained in:
Arthur 2022-08-15 17:44:49 +08:00 committed by Lane.Wei
parent 54012ba11b
commit 4ef43af2dd
2 changed files with 28 additions and 15 deletions
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8
src/libslic3r/Print.hpp
View file

@ -49,6 +49,12 @@ struct groupedVolumeSlices
ExPolygons slices;
};
enum SupportNecessaryType {
NoNeedSupp=0,
SharpTail,
LargeOverhang,
};
namespace FillAdaptive {
struct Octree;
struct OctreeDeleter;
@ -457,7 +463,7 @@ private:
std::pair<FillAdaptive::OctreePtr, FillAdaptive::OctreePtr> prepare_adaptive_infill_data();
// BBS
bool is_support_necessary();
SupportNecessaryType is_support_necessary();
// XYZ in scaled coordinates
Vec3crd m_size;

35
src/libslic3r/PrintObject.cpp
View file

@ -419,11 +419,17 @@ void PrintObject::generate_support_material()
m_print->throw_if_canceled();
} else {
// BBS: pop a warning if objects have significant amount of overhangs but support material is not enabled
if (this->is_support_necessary()) {
SupportNecessaryType sntype = this->is_support_necessary();
if (sntype != NoNeedSupp) {
m_print->set_status(50, L("Checking support necessity"));
std::string warning_message = format(L("It seems object %s needs support to print. Please enable support generation."), this->model_object()->name);
this->active_step_add_warning(PrintStateBase::WarningLevel::CRITICAL, warning_message, PrintStateBase::SlicingNeedSupportOn);
if (sntype == SharpTail) {
std::string warning_message = format(L("It seems object %s has completely floating regions. Please re-orient the object or enable support generation."),
this->model_object()->name);
this->active_step_add_warning(PrintStateBase::WarningLevel::CRITICAL, warning_message, PrintStateBase::SlicingNeedSupportOn);
} else {
std::string warning_message = format(L("It seems object %s has large overhangs. Please enable support generation."), this->model_object()->name);
this->active_step_add_warning(PrintStateBase::WarningLevel::CRITICAL, warning_message, PrintStateBase::SlicingNeedSupportOn);
}
}
#if 0
@ -2447,7 +2453,7 @@ template void PrintObject::remove_bridges_from_contacts<Polygons>(
float max_bridge_length, bool break_bridge);
bool PrintObject::is_support_necessary()
SupportNecessaryType PrintObject::is_support_necessary()
{
static const double super_overhang_area_threshold = SQ(scale_(5.0));
@ -2470,7 +2476,7 @@ bool PrintObject::is_support_necessary()
for (const ExPolygon& expoly : layerm->raw_slices) {
// detect sharp tail
if (intersection_ex({ expoly }, lower_layer_offseted).empty())
return true;
return SharpTail;
}
}
@ -2502,18 +2508,19 @@ bool PrintObject::is_support_necessary()
double super_overhang_area = 0.0;
for (Polygon& poly : super_overhang_polys) {
bool is_ccw = poly.is_counter_clockwise();
double area_ = poly.area();
if (is_ccw) {
if (super_overhang_area > super_overhang_area_threshold)
return true;
super_overhang_area = poly.area();
if (area_ > super_overhang_area_threshold)
return LargeOverhang;
super_overhang_area += area_;
}
else {
super_overhang_area -= poly.area();
super_overhang_area -= area_;
}
}
if (super_overhang_area > super_overhang_area_threshold)
return true;
//if (super_overhang_area > super_overhang_area_threshold)
// return LargeOverhang;
// 3. check overhang distance
const double distance_threshold_scaled = extrusion_width_scaled * 2;
@ -2528,10 +2535,10 @@ bool PrintObject::is_support_necessary()
}),
exceed_overhang.end());
if (!exceed_overhang.empty())
return true;
return LargeOverhang;
}
return false;
return NoNeedSupp;
}
static void project_triangles_to_slabs(ConstLayerPtrsAdaptor layers, const indexed_triangle_set &custom_facets, const Transform3f &tr, bool seam, std::vector<Polygons> &out)