Hi Yeping -
I had replied to your first email (on 11/30) with a similar suggestion to
Paul's of using the `cartoon_transparency` setting, but now after looking at
the original figure you're trying to replicate more closely, I realize that
there isn't actually any transparency in that figure a
Hi Paul,
Now I get closer to the final anwer!
After following your steps, I get the effect I want. However, afer I "ray" the
structure, a small part of the structure which I don't mean to set transparent
become blur. Please see the image in the red circle in fig-3
(https://drive.google.com/file
