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renamed is_region_simple to is_valid_region and fixed bugs and added examples

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fixed bugs in pair and triplet and added degenerate test cases
This commit is contained in:
Adrian Mariano
2021-11-03 22:30:01 -04:00
parent 530f3b3449
commit fe0586180e
8 changed files with 175 additions and 35 deletions
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13
lists.scad
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@@ -955,11 +955,13 @@ function enumerate(l,idx=undef) =
function pair(list, wrap=false) =
assert(is_list(list)||is_string(list), "Invalid input." )
assert(is_bool(wrap))
let(
ll = len(list)
) wrap
? [for (i=[0:1:ll-1]) [list[i], list[(i+1) % ll]]]
: [for (i=[0:1:ll-2]) [list[i], list[i+1]]];
let( L = len(list)-1)
L<1 ? [] :
[
for (i=[0:1:L-1]) [list[i], list[i+1]],
if(wrap) [list[L], list[0]]
];
// Function: triplet()
@@ -993,6 +995,7 @@ function triplet(list, wrap=false) =
assert(is_list(list)||is_string(list), "Invalid input." )
assert(is_bool(wrap))
let(L=len(list))
L<3 ? [] :
[
if(wrap) [list[L-1], list[0], list[1]],
for (i=[0:1:L-3]) [list[i],list[i+1],list[i+2]],