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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 Flow Print::skirt_flow() const
{ {
// Orca: fall back to m_config if no objects are present
ConfigOptionFloatOrPercent width = m_config.initial_layer_line_width; ConfigOptionFloatOrPercent width = m_config.initial_layer_line_width;
if (width.value <= 0) 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. /* 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 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; 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 The same logic should be applied to the code that selects the extruder during G-code
generation as well. */ generation as well. */
return Flow::new_from_config_width( return Flow::new_from_config_width(frPerimeter,
frPerimeter, // Flow::new_from_config_width takes care of the percent to value substitution
// Flow::new_from_config_width takes care of the percent to value substitution width,
width, (float) m_config.nozzle_diameter.get_at(
(float)m_config.nozzle_diameter.get_at(m_objects.front()->config().support_filament-1), m_objects.empty() ? 0 : m_objects.front()->config().support_filament - 1),
(float)this->skirt_first_layer_height()); (float) this->skirt_first_layer_height());
} }
bool Print::has_support_material() const 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 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); 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()); float max_nozzle_diameter = *std::max_element(m_config.nozzle_diameter.values.begin(), m_config.nozzle_diameter.values.end());