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