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FIX: Slicing process crashes when enable timelapse 

Change-Id: Idc3068b73809ee28fe685266fcd2355555e9f02a
This commit is contained in:
zhimin.zeng 2022-08-25 10:48:34 +08:00 committed by Lane.Wei
parent df6fb3eeb4
commit 5aaa785655
1 changed files with 7 additions and 8 deletions
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15
src/libslic3r/GCode.cpp
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@ -554,6 +554,9 @@ bool GCode::gcode_label_objects = false;
{ {
std::string gcode; std::string gcode;
assert(m_layer_idx >= 0);
if (m_layer_idx >= (int) m_tool_changes.size()) return gcode;
// Calculate where the wipe tower layer will be printed. -1 means that print z will not change, // Calculate where the wipe tower layer will be printed. -1 means that print z will not change,
// resulting in a wipe tower with sparse layers. // resulting in a wipe tower with sparse layers.
double wipe_tower_z = -1; double wipe_tower_z = -1;
@ -571,16 +574,12 @@ bool GCode::gcode_label_objects = false;
m_is_first_print = false; m_is_first_print = false;
} }
assert(m_layer_idx >= 0);
if (gcodegen.writer().need_toolchange(extruder_id) || finish_layer) { if (gcodegen.writer().need_toolchange(extruder_id) || finish_layer) {
if (m_layer_idx < (int)m_tool_changes.size()) { if (!(size_t(m_tool_change_idx) < m_tool_changes[m_layer_idx].size())) throw Slic3r::RuntimeError("Wipe tower generation failed, possibly due to empty first layer.");
if (!(size_t(m_tool_change_idx) < m_tool_changes[m_layer_idx].size()))
throw Slic3r::RuntimeError("Wipe tower generation failed, possibly due to empty first layer.");
if (!ignore_sparse) { if (!ignore_sparse) {
gcode += append_tcr(gcodegen, m_tool_changes[m_layer_idx][m_tool_change_idx++], extruder_id, wipe_tower_z); gcode += append_tcr(gcodegen, m_tool_changes[m_layer_idx][m_tool_change_idx++], extruder_id, wipe_tower_z);
m_last_wipe_tower_print_z = wipe_tower_z; m_last_wipe_tower_print_z = wipe_tower_z;
}
} }
} }