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Bugfix for set_union() when b contains duplicate items.

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Revar Desmera 2020-03-31 03:09:04 -07:00
parent 258e162f98
commit abf1a78290
2 changed files with 16 additions and 7 deletions
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21
arrays.scad
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@ -991,14 +991,23 @@ function permute(l,n=2,_s=0) =
// // set_v now equals [[5,0,1,2,6], [2,3,5,7,11,1,8]]
function set_union(a, b, get_indices=false) =
let(
found = search(b, a, num_returns_per_match=1),
nset = concat(a, [
for (i=idx(found)) if(found[i]==[]) b[i]
])
found1 = search(b, a),
found2 = search(b, b),
c = [
for (i=idx(b))
if (found1[i] == [] && found2[i] == i)
b[i]
],
nset = concat(a, c)
) !get_indices? nset :
let(
nidx = cumsum([len(a), for (i=found) (i==[])? 1 : 0]),
idxs = [for (i=idx(found)) (found[i]==[])? nidx[i] : found[i]]
la = len(a),
found3 = search(b, c),
idxs = [
for (i=idx(b))
(found1[i] != [])? found1[i] :
la + found3[i]
]
) [idxs, nset];

2
version.scad
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@ -8,7 +8,7 @@
//////////////////////////////////////////////////////////////////////
BOSL_VERSION = [2,0,249];
BOSL_VERSION = [2,0,250];
// Section: BOSL Library Version Functions