Extend the stroke following an approximated circluar/helical curve. This can be used as an effect for lineart or on its own as helix generator. Reviewed By: Sebastian Parborg (zeddb), Hans Goudey (HooglyBoogly), YimingWu (NicksBest), Antonio Vazquez (antoniov), Henrik Dick (weasel) Differential Revision: https://developer.blender.org/D11668 # 请为您的变更输入提交说明。以 '#' 开始的行将被忽略,而一个空的提交 # 说明将会终止提交。 # # 位于分支 master # 您的分支与上游分支 'origin/master' 一致。 # # 要提交的变更: # 修改: source/blender/blenkernel/BKE_gpencil_geom.h # 修改: source/blender/blenkernel/intern/gpencil_geom.cc # 修改: source/blender/gpencil_modifiers/intern/MOD_gpencillength.c # 修改: source/blender/makesdna/DNA_gpencil_modifier_defaults.h # 修改: source/blender/makesdna/DNA_gpencil_modifier_types.h # 修改: source/blender/makesrna/intern/rna_gpencil_modifier.c #