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Fix of #1978

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This commit is contained in:
Enrico Turri 2019-03-18 09:42:34 +01:00
parent 5fc37238e0
commit 902bcf7f71
1 changed files with 4 additions and 4 deletions
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8
src/libslic3r/GCode/Analyzer.cpp
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@ -726,7 +726,7 @@ void GCodeAnalyzer::_calc_gcode_preview_extrusion_layers(GCodePreviewData& previ
GCodePreviewData::Range volumetric_rate_range;
// to avoid to call the callback too often
unsigned int cancel_callback_threshold = (unsigned int)extrude_moves->second.size() / 25;
unsigned int cancel_callback_threshold = (unsigned int)std::max((int)extrude_moves->second.size() / 25, 1);
unsigned int cancel_callback_curr = 0;
// constructs the polylines while traversing the moves
@ -807,7 +807,7 @@ void GCodeAnalyzer::_calc_gcode_preview_travel(GCodePreviewData& preview_data, s
GCodePreviewData::Range feedrate_range;
// to avoid to call the callback too often
unsigned int cancel_callback_threshold = (unsigned int)travel_moves->second.size() / 25;
unsigned int cancel_callback_threshold = (unsigned int)std::max((int)travel_moves->second.size() / 25, 1);
unsigned int cancel_callback_curr = 0;
// constructs the polylines while traversing the moves
@ -864,7 +864,7 @@ void GCodeAnalyzer::_calc_gcode_preview_retractions(GCodePreviewData& preview_da
return;
// to avoid to call the callback too often
unsigned int cancel_callback_threshold = (unsigned int)retraction_moves->second.size() / 25;
unsigned int cancel_callback_threshold = (unsigned int)std::max((int)retraction_moves->second.size() / 25, 1);
unsigned int cancel_callback_curr = 0;
for (const GCodeMove& move : retraction_moves->second)
@ -886,7 +886,7 @@ void GCodeAnalyzer::_calc_gcode_preview_unretractions(GCodePreviewData& preview_
return;
// to avoid to call the callback too often
unsigned int cancel_callback_threshold = (unsigned int)unretraction_moves->second.size() / 25;
unsigned int cancel_callback_threshold = (unsigned int)std::max((int)unretraction_moves->second.size() / 25, 1);
unsigned int cancel_callback_curr = 0;
for (const GCodeMove& move : unretraction_moves->second)