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add moai

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Justin Lin 2021-08-27 19:50:18 +08:00
parent 9cbac21f17
commit 950c7a5937
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use <polyhedron_hull.scad>;
use <sweep.scad>;
use <util/reverse.scad>;
use <util/slice.scad>;
use <ptf/ptf_rotate.scad>;
h = 50;
face = 12;
face_step = 3;
nose = 5;
nose_step = 1;
smoothing = false; // warning: previewing is slow if it's true.
smoothing_r = 2;
$fn = 12;
if(smoothing) {
minkowski() {
translate([0, h / 2, 0])
moai(h, face, face_step, nose, nose_step);
sphere(smoothing_r);
}
}
else {
translate([0, h / 2, 0])
moai(h, face, face_step, nose, nose_step);
}
/*
translate([70, h / 2, 0])
moai(h = 50, face = 18, face_step = 3, nose = 4, nose_step = 1);
translate([-60, h / 2, 0])
moai(h = 40, face = 10, face_step = 2.5, nose = 3, nose_step = 1);*/
module moai(h, face, face_step, nose, nose_step) {
profile = [
for(p = [
// back
[0, 0, 0],
[0, 0, h * 0.25],
[0, -h / 25, h * 0.45],
[0, -h / 20, h / 2],
[0, -h / 40, h / 4 * 3],
[0, h / 20, h],
// head : 6
[0, -h / 10, h * 1.05],
[0, -h / 5, h * 1.075],
[0, -h / 3.2, h * 0.975],
[0, -h / 3.5, h * 0.925],
// nose : 10
[0, -h / 2.4, h * 0.75],
[0, -h / 2, h * 0.7],
[0, -h / 2, h * 0.65],
// mouth : 13
[0, -h / 2.15, h * 0.6],
[0, -h / 1.8, h * 0.475],
[0, -h / 2, h * 0.425],
[0, -h / 2.5, h * 0.375],
[0, -h / 2, h * 0.25],
[0, -h / 1.75, 0],
]) p + [0, -h / 2.5, 0]
];
no_nose_profile = concat(slice(profile, 0, 10), slice(profile, 13));
no_nose_sections = concat(
[
[
for(i = [0:len(no_nose_profile) - 1])
let(
p = no_nose_profile[i],
rp = ptf_rotate([p[0] * 0.8, p[1] * 0.4, p[2] * 0.85] + [1, -13, 0], face + face_step)
)
[rp[0], rp[1], rp[2] == 0 ? rp[2] : rp[2] + 3] + [1, 0, 0]
],
[
for(i = [0:len(no_nose_profile) - 1])
let(
p = no_nose_profile[i],
rp = ptf_rotate([p[0] * 0.85, p[1] * 0.8, p[2] * 0.96] + [0, -6, 0], face + face_step * 1.1)
)
[rp[0], rp[1], rp[2] == 0 ? rp[2] : rp[2] + 1]
]
],
[
for(a = face; a >= 0; a = a - face_step)
[for(i = [0:len(no_nose_profile) - 1])
ptf_rotate(no_nose_profile[i], a)]
]
);
back = [
for(section = no_nose_sections)
each slice(section, 0, 6)
];
nose_profile = slice(profile, 9, 14);
nose_sections = [
for(a = nose; a >= 0; a = a - nose_step)
[for(i = [0:len(nose_profile) - 1])
ptf_rotate(nose_profile[i], a)]
];
polyhedron_hull(
concat(back, [for(p = back) [-p[0], p[1], p[2]]]),
polyhedron_abuse = true
);
sweep(no_nose_sections);
mirror([1, 0, 0])
sweep(no_nose_sections);
translate([0, .01, 0]) {
sweep(nose_sections);
mirror([1, 0, 0])
sweep(nose_sections);
}
hull() {
translate([0, h / 7.5, 0])
scale([2, 1.2, 1])
intersection() {
union() {
sweep(no_nose_sections);
mirror([1, 0, 0])
sweep(no_nose_sections);
}
translate([0, -h / 2, 0])
cube([h / 2 * 2, h / 2 * 2, h * 0.8 / 2], center = true);
}
scale([1, 1, 1])
intersection() {
union() {
sweep(no_nose_sections);
mirror([1, 0, 0])
sweep(no_nose_sections);
}
translate([0, -h / 2, 0])
cube([h / 2 * 2, h / 2 * 2, h * 1.25 / 2], center = true);
}
}
}