Hi all...

I'm having some difficulty with what seems like a simple operation.  I
have a list of 25 surfaces that undergo an intersection test with 3
lines.  I want to separate the surfaces that get intersected from the
ones that don't.  So far, I've got the intersected surfaces with no
problems. 3 of these 25 surfaces are further subdivided and I want to
cull them OUT of the original.  I have the index numbers of the
surfaces in question.  But the Booleans are driving me crazy, and I
can't get a proper cull to work.  So a few questions.

1) How do you generate a list of booleans dynamically?  Let's say you
know you want all trues except False at index position 7, 13, and 24.
(These indices can change in value or number dynamically.)  How do you
generate that list?

2) Is there any way to "replace by index"?  I have a list of 25
values, I want to replace the data at index 7.  How?

3) Delete by index number.  I have a list of 25 numbers.  I want to
delete the item at index 7.  How?

Any one of these last two options would solve all of my problems and
relieve my heartache.  Any ideas appreciated.

Thanks,
Marc

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