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Code Issues Releases Wiki Activity

optimization

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This commit is contained in:
Justin Lin 2022-04-29 20:39:39 +08:00
parent 2f9afc38c4
commit bff5b022a7
1 changed files with 28 additions and 43 deletions
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71
src/sweep.scad
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@ -23,18 +23,20 @@ module sweep(sections, triangles = "SOLID") {
concat(
[
for(j = range_j, i = range_i)
let(i2 = j + (i + 1) % leng_pts_sect)
[
j + i,
j + (i + 1) % leng_pts_sect,
j + (i + 1) % leng_pts_sect + leng_pts_sect
i2,
i2 + leng_pts_sect
]
],
[
for(j = range_j, i = range_i)
let(ji = j + i)
[
j + i,
ji,
j + (i + 1) % leng_pts_sect + leng_pts_sect ,
j + i + leng_pts_sect
ji + leng_pts_sect
]
]
);
@ -59,10 +61,7 @@ module sweep(sections, triangles = "SOLID") {
if(begin_end_the_same) {
f_idxes = side_indexes(sects);
polyhedron(
v_pts,
f_idxes
);
polyhedron(v_pts, f_idxes);
// hook for testing
test_sweep_solid(v_pts, f_idxes, triangles);
@ -70,15 +69,11 @@ module sweep(sections, triangles = "SOLID") {
first_idxes = [each [leng_pts_sect - 1:-1:0]];
from = leng_pts_sect * (leng_sects - 1);
to = from + leng_pts_sect - 1;
last_idxes = [each [from:to]];
last_idxes = [each [from:from + leng_pts_sect - 1]];
f_idxes = [first_idxes, each side_indexes(sects), last_idxes];
polyhedron(
v_pts,
f_idxes
);
polyhedron(v_pts, f_idxes);
// hook for testing
test_sweep_solid(v_pts, f_idxes, triangles);
@ -99,22 +94,24 @@ module sweep(sections, triangles = "SOLID") {
function first_idxes() =
[
for(i = range)
let(i3 = (i + 1) % half_leng_sect)
[
i,
i + half_leng_v_pts,
(i + 1) % half_leng_sect + half_leng_v_pts,
(i + 1) % half_leng_sect
i3 + half_leng_v_pts,
i3
]
];
function last_idxes(begin_idx) =
[
for(i = range)
let(bi = begin_idx + i, i2 = begin_idx + (i + 1) % half_leng_sect)
[
begin_idx + i,
begin_idx + (i + 1) % half_leng_sect,
begin_idx + (i + 1) % half_leng_sect + half_leng_v_pts,
begin_idx + i + half_leng_v_pts
bi,
i2,
i2 + half_leng_v_pts,
bi + half_leng_v_pts
]
];
@ -167,31 +164,19 @@ module sweep(sections, triangles = "SOLID") {
}
module triangles_defined_sections() {
module tri_sections(tri1, tri2) {
polyhedron(
points = concat(tri1, tri2),
faces = [
[0, 1, 2],
[3, 5, 4],
[1, 3, 4], [2, 1, 4], [2, 3, 0],
[0, 3, 1], [2, 4, 5], [2, 5, 3]
]
);
}
faces = [
[0, 1, 2], [3, 5, 4],
[1, 3, 4], [2, 1, 4], [2, 3, 0],
[0, 3, 1], [2, 4, 5], [2, 5, 3]
];
module two_sections(section1, section2) {
for(idx = triangles) {
tri_sections(
[
section1[idx[0]],
section1[idx[1]],
section1[idx[2]]
],
[
section2[idx[0]],
section2[idx[1]],
section2[idx[2]]
]
polyhedron(
concat(
[for(i = idx) section1[i]],
[for(i = idx) section2[i]]
),
faces
);
}
}