Commit Graph

16 Commits

Author SHA1 Message Date
Kris Austin
d500ba4e9e test: fix flaky k-medoids goldens added with H2C/A2L support (#14773)
The filament-group golden harness landed with H2C/A2L support (#14685). Its
"FilamentGroup golden regression" / stress_66 case fails intermittently on
Windows x64, on main and on unrelated PRs alike. The test depends on how fast the
runner is.

The k-medoids clustering these goldens exercise is an anytime search bounded by a
3 second wall clock. Every restart is seeded from its own index, so nothing about
it is random. What varies is how many restarts fit in the budget, and the best
cost is a minimum over completed restarts, so a slower runner is never better.
Grading a score produced that way measures the machine as much as the code.

Add a ClusteringBudget struct and let the tests set it. The defaults are the
current 3 seconds and 30 restarts, so slicing behavior is unchanged. A
non-positive timeout removes the wall clock and bounds the search by restart
count alone.

The goldens are then graded under a fixed budget of four restarts, where every
one of them reaches the BambuStudio reference within 3%, so the score becomes a
property of the code. This retires the machine-specific 125103 lock on stress_66.

The default wall-clock path keeps its own test, asserting the grouping is valid
and the search does not run away. It makes no score assertion, because under a
wall clock that number is not a property of the code.

The golden test also checks the run fits in ten times the default wall clock.
Slicing quality depends on how many restarts fit in the budget, so a search an
order of magnitude slower would degrade real groupings while a fixed-budget score
gate stayed green.

The 3% tolerance stays as the parity allowance against the goldens. It also
covers a small spread across standard libraries: the k-medoids search seeds each
restart with std::shuffle, whose algorithm the C++ standard leaves unspecified,
so libstdc++, libc++ and the MSVC STL permute the same seed differently, start
from different medoids, and settle on slightly different groupings, about 3e-4
apart and only on the goldens heavy enough to reach the k-medoids search.
2026-07-15 16:59:55 +08:00
SoftFever
237ef41b06 feat(libslic3r): multi-nozzle slicing engine for H2C/A2L
Port BambuStudio's dual-nozzle slicing core: H2C-era config keys, filament-to-nozzle grouping with per-layer dynamic regrouping, filament/nozzle/hotend gcode placeholder vocabulary, multi-nozzle wipe tower pre-heat/pre-cool, the two-pass pre-cooling injector, and corexy farthest-point timelapse.
2026-07-09 01:16:25 +08:00
xun.zhang
229ef8884f ENH: enhance filament group alogrithm
1. Try to merge filaments before grouping
2. Set max match num for machine filamnet in match mode

jira:STUDIO-10392

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I2451d838e07ee02f493fda4dc702f3d13b2ad37b
(cherry picked from commit d15fc37ff2fa048e38a0b132bb3ae525ff666fab)
2025-09-17 09:46:04 +08:00
xun.zhang
58c877976d FIX: some filament group issues
1. Add filament_is_support field. Format the filament type
2. Optimize machine filament info logic

jira:STUDIO-10326

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: Ia8bfc37095339e73c98209b4e3f1e0804e511e88
(cherry picked from commit 001144400b841629439a890d46fa40a7296689ba)
2025-09-16 23:27:32 +08:00
xun.zhang
ae4842c262 FIX: wrong group result in some cases
1.Caused by too big tolerance

jira:STUDIO-10236

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I0ba182991bc70ca2d3a34a85b87fa7539c5e50d9
(cherry picked from commit d2ae5ea32c55c0023b27fac73a7479c2bd9a7e1c)
2025-09-16 21:21:39 +08:00
xun.zhang
270c52b2c7 ENH: consider type when select best map for ams
1.Add filament type into consideration when selecting best map for
ams in filament saving mode

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I7d4a4ff66da479ab560eaeea614e5bbf0f930d3f
(cherry picked from commit 4b6f82d042cadbd65e66edbb1c8287791da5caa3)
2025-09-10 07:32:41 +08:00
xun.zhang
5b03339b70 FIX: some filament group related bugs
1. Ignore machine filaments without enougn info

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I8973645555ae1d0986f90838797652258c4b57ac
(cherry picked from commit c75285002aa216ac903d5bf11cc2abc82dff1f63)
2025-09-07 18:25:45 +08:00
xun.zhang
973c2f9cf3 ENH: refactor filament group
1.Seperate min flush max flow solver
2.Add "best match" mode for filament map
3.Refine code strucuture

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: If4ba09a0320366b862cec59f8ed1f22c392c53b9
(cherry picked from commit 414a2105c9d77bbf7771bdf3fdec40d96dc949c2)
2025-09-06 23:49:26 +08:00
xun.zhang
2c75d2f1b9 ENH: Select group that best fit filaments in AMS
1.Only consider groups with a distance within the threshold

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I91526a796a0f7f1ed3e77c41076c1f85620dd944
(cherry picked from commit 1379b838466f9b0a188fc916c31916626b933dc4)
2025-08-24 23:18:19 +08:00
xun.zhang
e1ebe832dd ENH: refine filament group algorithm
1.Use max flow network to handle limit
2.Support setting master extruder id
3.Fix the issue in the KMedoids algorithm where data is overwritten
after each retry.

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: Idd2bedf39f61e7a65eb4199852f60b8fbebe0a7d
(cherry picked from commit 3cfb49a1b9dc2c76066ec441f1028f99a4bf99c4)
2025-08-24 23:18:19 +08:00
xun.zhang
dcfa224cf2 ENH: do another map for ams filaments
1.If the group result differs little in flush,we will choose the one
that best fits the ams filaments

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: Icd147b406e3494c841ef13564ad1b1231ad798fd
(cherry picked from commit 0b95bdd9d950918ea6979da6b4d62b2d2cd25b99)
2025-08-24 23:18:18 +08:00
xun.zhang
7bd16a3ca7 ENH: add filament cluster algorithm
1.Add new KMediods algorithm
2.Consider physical and geometric printables
3.Refine code structure

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I1412835c3c6380f9cedb44ff6914004365bba889
(cherry picked from commit c53a35856d8d1cbd3a632a8510f1ddfdf9117106)
2025-08-24 23:18:13 +08:00
xun.zhang
5d4cb375b0 ENH: add tool order function
1.Use min cost max flow to solve the tool order

jira:NEW

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I909845039b67c7fe3ddd42580ad3f1d71d52262d
(cherry picked from commit 0716b8518ef62e0eac7c45de8bafb1458d8f9a8e)
2025-08-24 23:18:10 +08:00
xun.zhang
ec98375192 ENH: optmize code structure of tool order
1.Put reorder functions in ToolOrderUtils

jira:NONE

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I49c7b447ba1f41f3747ba3127d842c4e3957b5ff
(cherry picked from commit 0f70c81a7d5686d8e80396f8f865f25b72618907)
2025-08-24 23:18:10 +08:00
xun.zhang
5a6b215ef0 ENH: add filament group strategy
1.When capacity is greater than the num of filaments, always choose the
map result that can be accommodated
2.In BestFit strategy,always try to fill up the existing capacity
3.In BestCost strategy, just try the group with fewest flush

jira:NEW

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: Ifd6d64b77774039e57ffff26cf2243a4d3f89054
(cherry picked from commit cddf8cae27f4320f830b463e92703d3a6cf344e7)
2025-08-24 23:18:06 +08:00
xun.zhang
0ad75a223b ENH: new filament group algorithm
1.When n<10, calc all case cost
2.When n>10, first k-medoids algorithm first
3.Enable setting group size

jira:NEW

Signed-off-by: xun.zhang <xun.zhang@bambulab.com>
Change-Id: I625f47e0235c70e440c6d489b052a156fbffca3f
(cherry picked from commit 9ec276d3d7114fff7a33213c3b47ce88df85f2ee)
2025-08-24 23:18:05 +08:00