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change order of points

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Justin Lin
2019-08-22 07:50:12 +08:00
parent 2db1b5fedc
commit bbf6f7d5ca
1 changed files with 6 additions and 7 deletions
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13
src/pixel/bitmap.scad
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@@ -6,21 +6,20 @@ function _bitmap_row(r_count, row_bits, dimension, range, center, invert) =
) )
[for(i = range) if(row_bits[i] == bit) [i - half_d + offset_p, r_count + offset_p]]; [for(i = range) if(row_bits[i] == bit) [i - half_d + offset_p, r_count + offset_p]];
function bitmap(raw_data, center = false, invert = false) =
function bitmap(raw_data, center = true, invert = false) =
let( let(
dimension = sqrt(len(raw_data)), dimension = sqrt(len(raw_data)),
range = [0:dimension - 1], to = dimension - 1,
range = [0:to],
rows = [ rows = [
for(row = range) for(row = to; row > 0; row = row - 1)
[for(column = range) [for(column = range)
raw_data[row * dimension + column]] raw_data[row * dimension + column]]
], ],
offset_i = dimension / 2 - 1 offset_i = dimension / 2
) )
[ [
for(i = range) for(i = range)
let(row = _bitmap_row(-i + offset_i, rows[i], dimension, range, center, invert)) let(row = _bitmap_row(i - offset_i, rows[i], dimension, range, center, invert))
if(row != []) each row if(row != []) each row
]; ];