hi

i have some case need to just delete the inside surface and keep the outside surface, as the JPG bellow, and this object is a individual geometry without grouping inside or outside, but i don't know how to do it.

can anyone help me please?


thanks

Use connectivitySOP+partitionSOP to create groups and than use delete.

my friend help me with this, and i got what i want , but still thanks for reply, actually i don't know what is the expression to write in partition SOP, if you know , pls tell me.

the expression in the partition SOP is very simple.
Say if you create a primitive attribute “class” in the connectivity SOP,
you have to write the following in the partition SOP's Rule field:

groupname_$CLASS

in your case you get now 2 groups named
groupname_0 and groupname_1

if you're interested in this topic, i did a tutorial on the foreach, connectivity and partition SOPs, just visit my vimeo page!

regards,

Manuel