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Fix/skirt flow crash empty plate (#14403)

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* Fix crash when arranging with per-object skirt on empty plate
This commit is contained in:
SoftFever
2026-06-25 18:50:58 +08:00
parent 698e8e297c
commit ae14fda37c
1 changed files with 10 additions and 8 deletions
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18
src/libslic3r/Print.cpp
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@@ -2026,21 +2026,23 @@ Flow Print::brim_flow() const
Flow Print::skirt_flow() const
{
// Orca: fall back to m_config if no objects are present
ConfigOptionFloatOrPercent width = m_config.initial_layer_line_width;
if (width.value <= 0)
width = m_objects.front()->config().line_width;
width = m_objects.empty() ? m_config.initial_layer_line_width : m_objects.front()->config().line_width;
/* We currently use a random object's support material extruder.
While this works for most cases, we should probably consider all of the support material
extruders and take the one with, say, the smallest index;
The same logic should be applied to the code that selects the extruder during G-code
generation as well. */
return Flow::new_from_config_width(
frPerimeter,
// Flow::new_from_config_width takes care of the percent to value substitution
width,
(float)m_config.nozzle_diameter.get_at(m_objects.front()->config().support_filament-1),
(float)this->skirt_first_layer_height());
return Flow::new_from_config_width(frPerimeter,
// Flow::new_from_config_width takes care of the percent to value substitution
width,
(float) m_config.nozzle_diameter.get_at(
m_objects.empty() ? 0 : m_objects.front()->config().support_filament - 1),
(float) this->skirt_first_layer_height());
}
bool Print::has_support_material() const
@@ -3773,7 +3775,7 @@ void Print::export_gcode_from_previous_file(const std::string& file, GCodeProces
std::tuple<float, float> Print::object_skirt_offset(double margin_height) const
{
if (config().skirt_loops == 0 || config().skirt_type != stPerObject)
if (config().skirt_loops == 0 || config().skirt_type != stPerObject || m_objects.empty())
return std::make_tuple(0, 0);
float max_nozzle_diameter = *std::max_element(m_config.nozzle_diameter.values.begin(), m_config.nozzle_diameter.values.end());