Cannot expand the size of nonlocal model in "excav_bucket.py"

[youeryuan1]

Hi @haeriamin ,
Thanks for publishing this code.
I try to expand the size of nonlocal model named "cube_smooth" in excav_bucket.py.For example,I change "scale" from 1 to 5.
But the Ubuntu terminal will give an error of ''particle out of box or near boundary. Ignored.".
I tried to modify "mpm.cpp" and recompile it, but it has no effect.
Can you tell me how to solve this problem? I look forward to your reply.