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Syntax fix for group_data() asserts.

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Garth Minette 2021-06-30 17:20:37 -07:00
parent 8ef32210c4
commit d57e27f268
1 changed files with 12 additions and 6 deletions
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18
arrays.scad
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@ -1816,16 +1816,22 @@ function array_group(v, cnt=2, dflt=0) =
// Example:
// groups = group_data([1,3,1], ["A","B","C"]); // Returns [[],["A","C"],[],["B"]]
function group_data(groups, values) =
assert(all_integer(groups) && all_nonnegative(groups));
assert(is_list(values));
assert(all_integer(groups) && all_nonnegative(groups))
assert(is_list(values))
assert(len(groups)==len(values),
"The groups and values arguments should be lists of matching length.")
let( sorted = _group_sort_by_index(zip(groups,values),0) )
// retrieve values and insert []
[for(i=idx(sorted))
let( a = i==0? 0 : sorted[i-1][0][0]+1,
g0 = sorted[i] )
each [ for(j=[a:1:g0[0][0]-1]) [], [for(g1=g0) g1[1]] ]
[
for (i = idx(sorted))
let(
a = i==0? 0 : sorted[i-1][0][0]+1,
g0 = sorted[i]
)
each [
for (j = [a:1:g0[0][0]-1]) [],
[for (g1 = g0) g1[1]]
]
];