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refactor

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This commit is contained in:
Justin Lin 2022-04-13 08:26:10 +08:00
parent 06f144d38b
commit 9b3eee5993
1 changed files with 27 additions and 23 deletions
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50
src/_impl/_contours_impl.scad
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@ -116,17 +116,21 @@ function _isolines_of(cell_pts, threshold) =
function _marching_squares_isolines(points, threshold) =
let(labeled_pts = _isolines_pn_label(points, threshold))
[
for(y = [0:len(labeled_pts) - 2], x = [0:len(labeled_pts[0]) - 2])
for(y = [0:len(labeled_pts) - 2])
let(
p0 = labeled_pts[y][x],
p1 = labeled_pts[y + 1][x],
p2 = labeled_pts[y + 1][x + 1],
p3 = labeled_pts[y][x + 1],
cell_pts = [p0, p1, p2, p3],
isolines_lt = _isolines_of(cell_pts, threshold)
labeled_pts_y = labeled_pts[y],
labeled_pts_y_1 = labeled_pts[y + 1]
)
for(x = [0:len(labeled_pts[0]) - 2])
each _isolines_of(
[
labeled_pts_y[x],
labeled_pts_y_1[x],
labeled_pts_y_1[x + 1],
labeled_pts_y[x + 1]
],
threshold
)
if(isolines_lt != [])
each isolines_lt
];
/*
@ -143,9 +147,8 @@ function _isobands_tri_label(pts, lower, upper) =
[
for(p = row)
let(
z = p.z,
label = z < lower ? "0" :
z >= lower && z <= upper ? "1" : "2"
label = p.z < lower ? 0 :
p.z > upper ? 2 : 1
)
[each p, label]
]
@ -1391,17 +1394,18 @@ function _isobands_of(cell_pts, lower, upper) =
function _marching_squares_isobands(points, lower, upper) =
let(labeled_pts = _isobands_tri_label(points, lower, upper))
[
for(y = [0:len(labeled_pts) - 2], x = [0:len(labeled_pts[0]) - 2])
let(
p0 = labeled_pts[y][x],
p1 = labeled_pts[y + 1][x],
p2 = labeled_pts[y + 1][x + 1],
p3 = labeled_pts[y][x + 1],
cell_pts = [p0, p1, p2, p3],
isobands_lt = _isobands_of(cell_pts, lower, upper)
)
if(isobands_lt != [])
each isobands_lt
for(y = [0:len(labeled_pts) - 2])
let(labeled_pts_y = labeled_pts[y], labeled_pts_y_1 = labeled_pts[y + 1])
for(x = [0:len(labeled_pts[0]) - 2])
each _isobands_of(
[
labeled_pts_y[x],
labeled_pts_y_1[x],
labeled_pts_y_1[x + 1],
labeled_pts_y[x + 1]
],
lower, upper
)
];
/*