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SPE-2441: Fix discontinuity between the processed blocks' exit speed and the new first block's entry speed.

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This discontinuity affected both time estimation and actual speed visualization.

(cherry picked from commit 90073dce70fb05bda80421158175b851855f0a8f)
This commit is contained in:
Lukáš Hejl 2024-08-16 08:04:51 -04:00 • committed by Andrew Sun
parent acd3c94955
commit bec883e667
1 changed files with 12 additions and 2 deletions
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14
src/libslic3r/GCode/GCodeProcessor.cpp
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@ -522,10 +522,20 @@ void GCodeProcessor::TimeMachine::calculate_time(GCodeProcessorResult& result, P
it_stop_time->elapsed_time = time;
}
if (keep_last_n_blocks)
if (keep_last_n_blocks) {
blocks.erase(blocks.begin(), blocks.begin() + n_blocks_process);
else
// Ensure that the new first block's entry speed will be preserved to prevent discontinuity
// between the erased blocks' exit speed and the new first block's entry speed.
// Otherwise, the first block's entry speed could be recalculated on the next pass without
// considering that there are no more blocks before this first block. This could lead
// to discontinuity between the exit speed (of already processed blocks) and the entry
// speed of the first block.
TimeBlock &first_block = blocks.front();
first_block.max_entry_speed = first_block.feedrate_profile.entry;
} else {
blocks.clear();
}
}
void GCodeProcessor::TimeProcessor::reset()