Refer to prusa and enable arachne for wall.
Arachne also has corner case and cause strange
slicing result and bad quality when print, while
class engine is much better for these cases.
Provide option for user to choose.
Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: Ieb3a1c6a457ca610561f8734de4a122d74165afd
Sync some code change and fix from Prusa.
Thanks Prusa.
This also can fix github issue #317
Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: If6993e0149733ccf85ed85f82553caa03df7ac60
ConcentricGapFill pattern was used for internal narrow
solid infill. Use arachne engine instead to remove
gap fill inside the pattern and improve the extrusion path
Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I758d7c72eb71cc37026b7cebf746cc345014c3f5
(cherry picked from commit 0b6bacd21a091afc13d7b36a69e5b10f155bc6f8)
