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Fix issue that pressure equalizer moves pass the original end of the line when processing very short movements (#12575)

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Noisyfox
2026-03-04 15:44:37 +08:00
committed by GitHub
parent 0a84934639
commit d390524db0
1 changed files with 9 additions and 2 deletions
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11
src/libslic3r/GCode/PressureEqualizer.cpp
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@@ -541,10 +541,17 @@ void PressureEqualizer::output_gcode_line(const size_t line_idx)
// We don't have enough time to accel to max possible extrusion rate
// now we calculate the actual possible value
target_max_extrusion_rate = std::sqrt((2 * max_sloped_extrusion * sp * sn + sn * e0_2 + sp * e1_2) / (sp + sn));
// Worst case: we don't have enough time to do an accl-steady-decel movement at all, fallback to the old fashion
// single slope mode
if (target_max_extrusion_rate <= line.volumetric_extrusion_rate_start ||
target_max_extrusion_rate <= line.volumetric_extrusion_rate_end) {
goto single_slope_fallback; // TODO: FIXIT: better way than a goto?
}
}
assert(target_max_extrusion_rate > line.volumetric_extrusion_rate_start);
assert(target_max_extrusion_rate > line.volumetric_extrusion_rate_end);
assert(target_max_extrusion_rate >= line.volumetric_extrusion_rate);
assert(target_max_extrusion_rate <= line.volumetric_extrusion_rate);
// if the extrusion rate change is trivial, then ignore this algorithm and use the single sloped version instead
delta_volumetric_rate = std::round(std::min({ // important! it's MIN here not max!
@@ -626,7 +633,7 @@ void PressureEqualizer::output_gcode_line(const size_t line_idx)
return;
}
}
single_slope_fallback:
bool accelerating = line.volumetric_extrusion_rate_start < line.volumetric_extrusion_rate_end;
float feed_avg = 0.5f * (line.pos_start[4] + line.pos_end[4]);
// Limiting volumetric extrusion rate slope for this segment.