list llList2ListStrided(list src, integer start, integer end, integer stride)
Copies the
strided slice of the
list from
start to
end.
llList2ListStrided returns a list consisting of every stride'th element from
src that is between element
start and element
end.
list src = ["a", 1, 2, "b", 3, 4, "c", 5, 6, "d", 7, 8];
llList2ListStrided(src, 1, 7, 3);
The result is:
[ "b", "c" ]
Probably the most useful application would be:
Which gives the result:
[ "a", "b", "c", "d" ]
Q & A:
Q: What's a "stride"?
A: See stride.
Q: How do you get a list of the anything but the first items in the stride? I've tried various combinations of parameters and never got quite what I expected. If I want the whole sub-list I'd expect passing 0 as start would give me a list of the first elements, 1 would give the second elements and so forth, but that's not what happens like an offset into the stride.
A: That is not possible with this function - it can only access the first element in a stride. Perhaps it isn't working as it was originally intended, as the more reasonable way for it to work would indeed be to select elements from the stride based on start.
However, there is actually a workaround for this. To produce a list of all the second elements, just chop the first element off the list with llList2List or llDeleteSubList. This effectively causes llList2ListStrided to offset where it counts the start of the stride from.
So, to get every second element...
and to get every third element...
Compare with
llList2Float,
llList2Integer,
llList2Key,
llList2List,
llList2Rot,
llList2String and
llList2Vector.
This article wasn't helpful for you? Maybe the
related article at the LSL Portal is able to bring enlightenment.
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