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add hilbert_dragon_low_poly

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Justin Lin
2020-07-14 08:03:07 +08:00
parent f3db814318
commit c3ddd691c2
1 changed files with 256 additions and 0 deletions
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examples/turtle/hilbert_dragon_low_poly.scad Normal file
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use <bezier_smooth.scad>;
use <bezier_curve.scad>;
use <ellipse_extrude.scad>;
use <path_extrude.scad>;
use <shape_circle.scad>;
use <util/reverse.scad>;
use <util/dedup.scad>;
use <turtle/lsystem3.scad>;
hilbert_dragon_low_poly();
module hilbert_dragon_low_poly() {
lines = hilbert_curve();
hilbert_path = dedup(
concat(
[for(line = lines) line[0]],
[lines[len(lines) - 1][1]])
);
smoothed_hilbert_path = bezier_smooth(hilbert_path, 0.48, t_step = 0.2);
dragon_body_path = reverse([for(i = [1:len(smoothed_hilbert_path) - 2]) smoothed_hilbert_path[i]]);
body_shape = concat(
bezier_curve(0.25,
[
[30, -35], [16, 0], [4, 13],
[3, -5], [0, 26], [-3, -5],
[-4, 13], [-16, 0], [-30, -35]
]
),
bezier_curve(0.25,
[[-22, -35], [-15, -45], [0, -55], [15, -45], [22, -35]]
)
);
pts = [for(p = body_shape) p * 0.007];
p = dragon_body_path[0];
path_extrude(pts, concat([p + [0, 0, -0.2]], dragon_body_path), scale = 0.9);
translate([0.45, 0, -2.9])
scale(0.009)
rotate([-90, 0, 90])
dragon_head();
translate([0, 0, -0.5])
rotate([0, -8, 0])
rotate(90)
ellipse_extrude(0.5, slices = 4, twist = 15)
scale(0.9 * 0.007)
polygon(body_shape);
}
module dragon_head() {
module palate() {
t_step = 0.15;
palate_shape = concat(
bezier_curve(0.25,
[
[31, -35], [19, 0], [8, 15], [-8, 12], [-19, 0], [-31, -35]
]
),
bezier_curve(0.25,
[[-20, -35], [-8, -20], [8, -20], [20, -35]]
)
);
palate_path = bezier_curve(t_step,
[[0, -110, 30], [0, -100, 25], [0, -80, 50], [0, -55, 130], [0, -20, -95], [0, 5, 105], [0, 10, 30], [0, 10, 25]]
);
path_extrude(palate_shape, palate_path, scale = 0);
}
module jaw() {
t_step = 0.2;
jaw_shape = concat(
bezier_curve(t_step,
[
[-20, 16], [-16, -5], [-8, -25],
[8, -25], [16, -5], [20, 16]
]
),
bezier_curve(t_step,
[[15, 14], [8, 0], [-8, 0], [-15, 14]]
)
);
jaw_path = bezier_curve(t_step,
[[0, -60, -5], [0, 5, 0], [0, 10, 0], [0, 35, 39], [0, 25, 40]]
);
path_extrude(jaw_shape, jaw_path, scale = 0);
}
module horns() {
path1 = bezier_curve(0.15,
[
[12, -40, 15],
[40, -38, 0],
[30, -60, -10],
[50, -90, -30]
]
);
shape1 = shape_circle(7, $fn = 6);
path_extrude(shape1, path1, scale = 0);
mirror([1, 0, 0])
path_extrude(shape1, path1, scale = 0);
path2 = bezier_curve(0.15,
[
[12, -42, 15],
[30, -17, 16],
[35, -20, 0],
[40, -40, -10]
]
);
shape2 = shape_circle(7, $fn = 5);
path_extrude(shape2, path2, scale = 0);
mirror([1, 0, 0])
path_extrude(shape2, path2, scale = 0);
path3 = bezier_curve(0.15,
[
[10, -40, 4],
[20, -60, 10],
[15, -70, -5],
[15, -125, 0]
]
);
shape3 = shape_circle(12, $fn = 6);
path_extrude(shape3, path3, twist = 60, scale = 0);
mirror([1, 0, 0])
path_extrude(shape3, path3, twist = 60, scale = 0);
path4 = bezier_curve(0.15,
[
[0, 10, 65],
[0, 5, 70],
[0, 10, 75],
[0, 5, 85],
]
);
path_extrude(shape_circle(5, $fn = 5), path4, scale = 0);
path5 = bezier_curve(0.15,
[
[0, 0, 65],
[0, -5, 70],
[0, 0, 70],
[0, -5, 75],
]
);
path_extrude(shape_circle(3, $fn = 5), path5, scale = 0);
path6 = bezier_curve(0.15,
[
[0, -18, 45],
[0, -20, 55],
[0, -15, 65],
[0, -20, 75],
]
);
path_extrude(shape_circle(6, $fn = 6), path6, scale = 0);
}
module tone() {
path1 = bezier_curve(0.15,
[
[0, -40, -5],
[5, 0, 15],
[-5, 5, 20],
[0, 10, 30],
]
);
shape1 = shape_circle(6, $fn = 6);
path_extrude(shape1, path1, scale = 0);
}
module eyes() {
path5 = bezier_curve(0.2,
[
[0, 0, 0],
[0, -5, 5],
[0, 0, 8],
[1, -5, 12],
]
);
module eye() {
eye_shape = shape_circle(5, $fn = 6);
translate([12, -40, 30.5])
rotate([-40, 0, 8])
scale([0.7, 1, 0.7])
union() {
rotate([-40.25, 0, 0])
path_extrude(eye_shape, path5, scale = 0);
rotate(180)
mirror([0, 0, 1])
rotate([-40.25, 0, 0])
path_extrude(eye_shape, path5, scale = 0);
}
translate([10.5, -36, 28.5])
sphere(5, $fn = 18);
}
eye();
mirror([1, 0, 0])
eye();
}
rotate([-45, 0, 0])
union() {
rotate([45, 0, 0])
translate([0, 50, 9.5])
palate();
jaw();
horns();
tone();
eyes();
}
}
function hilbert_curve() =
let(
axiom = "A",
rules = [
["A", "B-F+CFC+F-D&F^D-F+&&CFC+F+B//"],
["B", "A&F^CFB^F^D^^-F-D^|F^B|FC^F^A//"],
["C", "|D^|F^B-F+C^F^A&&FA&F^C+F+B^F^D//"],
["D", "|CFB-F+B|FA&F^A&&FB-F+B|FC//"]
]
)
lsystem3(axiom, rules, 2, 90, 1, 0, [0, 0, 0]);