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ENH: improve is_support_necessary

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Use tree support to detect if there are sharp tails and so on.

Jira: STUDIO-1898

Change-Id: I148e14ca4024849875133a646a8fdd36c265b2fb
(cherry picked from commit bc74015d45e96e409d34d611876e3a24e289e029)
This commit is contained in:
Arthur 2023-01-04 17:58:18 +08:00 • committed by Lane.Wei
parent 43ba4b0712
commit 81ee7bb99b
3 changed files with 29 additions and 11 deletions
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12
src/libslic3r/PrintObject.cpp
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@ -2388,7 +2388,7 @@ void PrintObject::_generate_support_material()
support_material.generate(*this);
TreeSupport tree_support(*this, m_slicing_params);
tree_support.generate_support_areas();
tree_support.generate();
}
// BBS
@ -2544,6 +2544,7 @@ template void PrintObject::remove_bridges_from_contacts<Polygons>(
SupportNecessaryType PrintObject::is_support_necessary()
{
#if 0
static const double super_overhang_area_threshold = SQ(scale_(5.0));
double threshold_rad = (m_config.support_threshold_angle.value < EPSILON ? 30 : m_config.support_threshold_angle.value + 1) * M_PI / 180.;
@ -2626,7 +2627,14 @@ SupportNecessaryType PrintObject::is_support_necessary()
if (!exceed_overhang.empty())
return LargeOverhang;
}
#else
TreeSupport tree_support(*this, m_slicing_params);
tree_support.detect_overhangs();
if (tree_support.has_sharp_tails)
return SharpTail;
else if (tree_support.has_cantilever)
return LargeOverhang;
#endif
return NoNeedSupp;
}