Examples
A simple 3D tree on a round base, sized for 3D printing.
Radial branching with smooth tapered cone branches (thick trunk -> thin twigs, no beaded joints). Adjust the parameters below or in the Customizer.
Source: examples/printable_tree.scad
// A simple 3D tree on a round base, sized for 3D printing.
// Radial branching with smooth tapered cone branches (thick trunk -> thin
// twigs, no beaded joints). Adjust the parameters below or in the Customizer.
use <../l_systems.scad>;
/* [Tree] */
// Fork levels: 1 = minimal, 2 = fuller, 3+ = bushier
levels = 2; // [1:4]
// Branch spread angle in degrees: wider = flatter, narrower = taller
spread_angle = 32; // [15:45]
// How fast branches thin along their length (lower = finer twigs)
branch_taper = 0.85; // [0.6:0.01:0.95]
// Trunk diameter at the base
trunk_width = 5; // [1:0.5:10]
/* [Base] */
// Diameter of the round base disc
base_diameter = 12; // [6:40]
// Thickness of the base disc
base_height = 3; // [1:0.5:8]
/* [Quality] */
// Facets per branch cross-section (higher = smoother, slower)
facets = 32; // [8:64]
// --- model ---
$ls_rounded = false; // clean cone-to-cone joints, no sphere beads
$fn = facets;
color("dimgray") translate([ 0, 0, -base_height / 2 ]) cylinder(h = base_height, d = base_diameter, $fn = 64);
L_System3D(printable_tree(), n = levels, angle = spread_angle, w = trunk_width, branch_taper = branch_taper);
examples/printable_tree.scad on GitHub
The 3D grammars, and two 2D curves drawn as 3D tubes.
Pick one from the dropdown. The seed changes the stochastic tree’s branches.
Source: examples/showcase_3d.scad
// The 3D grammars, and two 2D curves drawn as 3D tubes.
// Pick one from the dropdown. The seed changes the stochastic tree's branches.
use <../l_systems.scad>;
// ================================
// Configuration: Select Your Curve
// ================================
selected_curve = "whorl_tree"; // [hilbert_curve_3d, abop_bush, whorl_tree, coral_3d, weeping_tree, leafy_sprig, stochastic_tree, color_tree, reaching_tree, hilbert_curve_tube, dragon_curve_tube]
// Seed for the stochastic tree; each seed grows different branches
seed = 1; // [1:100]
// ================================
// Curve Selection Logic
// ================================
if (selected_curve == "hilbert_curve_3d")
{
L_System3D(hilbert_curve_3d(), n = 3, w = 0.5); // Recommended n <= 4
}
else if (selected_curve == "abop_bush")
{
L_System3D(abop_bush(), n = 6); // Recommended n <= 7
}
else if (selected_curve == "whorl_tree")
{
L_System3D(whorl_tree(), n = 6); // Recommended n <= 7
}
else if (selected_curve == "coral_3d")
{
L_System3D(coral_3d(), n = 5); // Recommended n <= 6
}
else if (selected_curve == "weeping_tree")
{
L_System3D(weeping_tree(), n = 6); // gravity tropism; Recommended n <= 7
}
else if (selected_curve == "leafy_sprig")
{
L_System3D(leafy_sprig(), n = 4); // filled polygon leaves; Recommended n <= 4
}
else if (selected_curve == "stochastic_tree")
{
L_System3D(stochastic_tree(), n = 6, $ls_seed = seed); // random branch patterns
}
else if (selected_curve == "color_tree")
{
L_System3D(color_tree(), n = 6); // per-level color gradient (preview only)
}
else if (selected_curve == "reaching_tree")
{
L_System3D(reaching_tree(), n = 6); // directed growth toward an attractor point
}
// Grammars are dimension-free data: any 2D curve renders as a 3D tube.
else if (selected_curve == "hilbert_curve_tube")
{
L_System3D(hilbert_curve(), n = 5, w = 0.6); // 2D grammar, 3D interpreter
}
else if (selected_curve == "dragon_curve_tube")
{
L_System3D(dragon_curve(), n = 10, w = 0.6); // 2D grammar, 3D interpreter
}
else
{
echo("Selected curve is not defined.");
}
examples/showcase_3d.scad on GitHub
The 2D curves drawn as lines: fractals, space-filling curves and plants.
Pick a curve from the dropdown.
Source: examples/showcase_lines_2d.scad
// The 2D curves drawn as lines: fractals, space-filling curves and plants.
// Pick a curve from the dropdown.
use <../l_systems.scad>;
// ================================
// Configuration: Select Your Curve
// ================================
selected_curve = "moore_square"; // [dragon_curve, dragon_curve_pentagonal, dragon_curve_hexagonal, twin_dragon, terdragon, hilbert_curve, moore_square, peano_curve, gosper_curve, levy_c_curve, koch_curve, koch_curve_animated, quadratic_type1_koch, quadratic_type2_koch, quadratic_fractal1, quadratic_fractal2, quadratic_fractal3, sierpinski_triangle, sierpinski_arrowhead, island_curve, penrose_tiling, pentadendrite, icy, tree, round_star, fractal_plant, minkowski_curve, vicsek_fractal, koch_island, fractal_vine, spiral_curve, hexagonal_spiral, square_fractal, segment_curve, cesaro_sweep, cesaro_carpet, icy_fractal, heighways_dragon, polya_sweep, hexagonal_dragon, hexagonal_dragon_estrela, inverted_terdragon, mandelbrot_quartet, inner_flip_gosper_curve, gosper_curve_tree, gosper_hex, quadratic_gosper, gosper_variation, koch_snowflake_inverted, reflected_koch, sierpinski_arrowhead_hexagon, sierpinski_arrowhead_star, lace, lace_triangle, peano_round_corners, krishna, carpet3, carpet5, pentaplexity, mcworters_pentigree, x_border_cross_curves, moore_curve, pajarita, four_point_stars, cross2, cross3, mango_leaf, maple_leaf, maple_leaf2, rose_triangles, hexagons, hexagon_star, triangles_var3, triangles_var4, dragon_root, pinched_dragon_root, crazy_dragon, pine_dragon, trefoil_knots, brain_dragon, triangular_grid, triangles_var5, octagons, triangles_var1, triangles_var2, peano_gosper, gosper_tri, dragon_lobes, carpet6, peano_variation1]
// ================================
// Curve Selection Logic
// ================================
if (selected_curve == "dragon_curve")
{
L_System2D(dragon_curve(), n = 12); // Recommended n <= 18
}
else if (selected_curve == "dragon_curve_pentagonal")
{
L_System2D(dragon_curve(), n = 12, angle = 72); // "Pentagonal Dragon"
}
else if (selected_curve == "dragon_curve_hexagonal")
{
L_System2D(dragon_curve(), n = 12, angle = 60); // Hexagonal Dragon
}
else if (selected_curve == "twin_dragon")
{
L_System2D(twin_dragon(), n = 12); // Recommended n <= 17
}
else if (selected_curve == "terdragon")
{
L_System2D(terdragon(), n = 5, w = 0.1); // Recommended n <= 11
}
else if (selected_curve == "hilbert_curve")
{
L_System2D(hilbert_curve(), n = 4, w = 0.5); // Recommended n <= 9
}
else if (selected_curve == "moore_square")
{
L_System2D(moore_square(), n = 3, w = 0.5); // Recommended n <= 8
}
else if (selected_curve == "peano_curve")
{
L_System2D(peano_curve(), n = 3); // Recommended n <= 6
}
else if (selected_curve == "gosper_curve")
{
L_System2D(gosper_curve(), n = 3); // Recommended n <= 6
}
else if (selected_curve == "levy_c_curve")
{
L_System2D(levy_c_curve(), n = 9); // Recommended n <= 17
}
else if (selected_curve == "koch_curve")
{
L_System2D(koch_curve(), n = 6, angle = 80, w = 0.2); // Recommended n <= 6 (try different angles: 60,80,90)
}
else if (selected_curve == "koch_curve_animated")
{
L_System2D(koch_curve(), n = 4, angle = 75 + 15 * sin($t * 360), w = 0.2); // Enable animation!!
}
else if (selected_curve == "quadratic_type1_koch")
{
L_System2D(quadratic_type1_koch(), n = 4); // Recommended n <= 8
}
else if (selected_curve == "quadratic_type2_koch")
{
L_System2D(quadratic_type2_koch(), n = 3); // Recommended n <= 6
}
else if (selected_curve == "quadratic_fractal1")
{
L_System2D(quadratic_fractal1(), n = 2); // Recommended n <= 5
}
else if (selected_curve == "quadratic_fractal2")
{
L_System2D(quadratic_fractal2(), n = 2); // Recommended n <= 5
}
else if (selected_curve == "quadratic_fractal3")
{
L_System2D(quadratic_fractal3(), n = 2); // Recommended n <= 5
}
else if (selected_curve == "sierpinski_triangle")
{
L_System2D(sierpinski_triangle(), n = 6, angle = 120, w = 0.2); // Recommended n <= 11
}
else if (selected_curve == "sierpinski_arrowhead")
{
L_System2D(sierpinski_arrowhead(), n = 6, angle = 60, w = 0.4); // Recommended n <= 11
}
else if (selected_curve == "island_curve")
{
L_System2D(island_curve(), n = 2, angle = 90, w = 0.4); // Recommended n <= 4
}
else if (selected_curve == "penrose_tiling")
{
L_System2D(penrose_tiling(), n = 4, angle = 36, w = 0.2); // Recommended n <= 6
}
else if (selected_curve == "pentadendrite")
{
L_System2D(pentadendrite(), n = 4, angle = 72, w = 0.2); // Recommended n <= 5
}
else if (selected_curve == "icy")
{
L_System2D(icy(), n = 4, angle = 90, w = 0.5); // Recommended n <= 6
}
else if (selected_curve == "tree") // Recommended n <= 5
{
L_System2D(tree(), n = 4, angle = 36, w = 0.1); // Recommended n <= 6
}
else if (selected_curve == "round_star")
{
scale([ 100, 100, 1 ]) L_System2D(round_star(), n = 8, angle = 77, w = 0.001);
}
else if (selected_curve == "fractal_plant")
{
L_System2D(fractal_plant(), n = 6, angle = 35, w = 0.1); // Recommended n <= 8
}
if (selected_curve == "minkowski_curve")
{
L_System2D(minkowski_curve(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "vicsek_fractal")
{
L_System2D(vicsek_fractal(), n = 3, angle = 90, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "koch_island")
{
L_System2D(koch_island(), n = 4, angle = 60, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "fractal_vine")
{
L_System2D(fractal_vine(), n = 5, angle = 25, w = 0.2); // Recommended n <= 7
}
else if (selected_curve == "spiral_curve")
{
L_System2D(spiral_curve(), n = 5, angle = 30, w = 0.3); // Recommended n <= 8
}
else if (selected_curve == "hexagonal_spiral")
{
L_System2D(hexagonal_spiral(), n = 6, angle = 60, w = 0.3); // Recommended n <= 6
}
else if (selected_curve == "square_fractal")
{
L_System2D(square_fractal(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "segment_curve")
{
L_System2D(segment_curve(), n = 2, angle = 90, w = 0.4); // Recommended n <= 2, max 3
}
else if (selected_curve == "cesaro_sweep")
{
L_System2D(cesaro_sweep(), n = 4, angle = 85, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "cesaro_carpet")
{
L_System2D(cesaro_carpet(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "icy_fractal")
{
L_System2D(icy(), n = 3, angle = 90, w = 0.5); // Recommended n <= 6
}
else if (selected_curve == "heighways_dragon")
{
L_System2D(heighways_dragon(), n = 8, angle = 90, w = 0.4); // Recommended n <= 18
}
else if (selected_curve == "polya_sweep")
{
L_System2D(polya_sweep(), n = 8, angle = 90, w = 0.4); // Recommended n <= 18
}
else if (selected_curve == "hexagonal_dragon")
{
L_System2D(hexagonal_dragon(), n = 5, angle = 60, w = 0.4); // Recommended n <= 10
}
else if (selected_curve == "hexagonal_dragon_estrela")
{
L_System2D(hexagonal_dragon_estrela(), n = 7, angle = 60, w = 0.4); // Recommended n <= 12
}
else if (selected_curve == "twin_dragon")
{
L_System2D(twin_dragon(), n = 8, angle = 90, w = 0.4); // Recommended n <= 14
}
else if (selected_curve == "terdragon")
{
L_System2D(terdragon(), n = 5, angle = 120, w = 0.4); // Recommended n <= 10
}
else if (selected_curve == "inverted_terdragon")
{
L_System2D(inverted_terdragon(), n = 2, angle = 120, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "mandelbrot_quartet")
{
L_System2D(mandelbrot_quartet(), n = 3, angle = 90, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "hilbert_curve")
{
L_System2D(hilbert_curve(), n = 5, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "peano_curve")
{
L_System2D(peano_curve(), n = 3, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "gosper_curve")
{
L_System2D(gosper_curve(), n = 4, angle = 60, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "inner_flip_gosper_curve")
{
L_System2D(inner_flip_gosper_curve(), n = 3, angle = 60, w = 0.4); // Recommended n <= 3
}
else if (selected_curve == "gosper_curve_tree")
{
L_System2D(gosper_curve_tree(), n = 3, angle = 60, w = 0.4); // Recommended n <= 4
}
else if (selected_curve == "gosper_curve_tree")
{
L_System2D(gosper_curve_tree(), n = 3, angle = 60, w = 0.4); // Recommended n <= 4
}
// Add more curves here
else if (selected_curve == "gosper_hex")
{
L_System2D(gosper_hex(), n = 4, angle = 30, w = 0.4); // Recommended n <= 4
}
else if (selected_curve == "quadratic_gosper")
{
L_System2D(quadratic_gosper(), n = 2, angle = 90, w = 0.4); // Recommended n <= 3
}
else if (selected_curve == "gosper_variation")
{
L_System2D(gosper_variation(), n = 4, angle = 60, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "koch_snowflake_inverted")
{
L_System2D(koch_snowflake_inverted(), n = 2, angle = 60, w = 0.4); // Recommended n <= 8
}
else if (selected_curve == "reflected_koch")
{
L_System2D(reflected_koch(), n = 3, angle = 60, w = 0.4); // Recommended n <= 14
}
else if (selected_curve == "sierpinski_arrowhead_hexagon")
{
L_System2D(sierpinski_arrowhead_hexagon(n = 5), angle = 60, w = 0.4); // Recommended n <= 8
}
else if (selected_curve == "sierpinski_arrowhead_star")
{
L_System2D(sierpinski_arrowhead_star(n = 4), angle = 60, w = 0.4); // Recommended n <= 8
}
else if (selected_curve == "lace")
{
L_System2D(lace(), n = 6, angle = 30, w = 0.4); // Recommended n <= 11
}
else if (selected_curve == "lace_triangle")
{
L_System2D(lace_triangle(), n = 5, angle = 30, w = 0.4); // Recommended n <= 7
}
else if (selected_curve == "peano_curve")
{
L_System2D(peano_curve(), n = 2, angle = 90, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "peano_round_corners")
{
L_System2D(peano_round_corners(), n = 3, angle = 45, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "krishna")
{
L_System2D(krishna(), n = 4, angle = 45, w = 0.4); // Recommended n <= 8
}
else if (selected_curve == "carpet3")
{
L_System2D(carpet3(), n = 3, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "carpet5")
{
L_System2D(carpet5(), n = 3, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "pentaplexity")
{
L_System2D(pentaplexity(), n = 4, angle = 36, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "mcworters_pentigree")
{
L_System2D(mcworters_pentigree(), n = 4, angle = 36, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "x_border_cross_curves")
{
L_System2D(x_border_cross_curves(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "moore_curve")
{
L_System2D(moore_curve(), n = 3, angle = 90, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "pajarita")
{
L_System2D(pajarita(), n = 5, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "four_point_stars")
{
L_System2D(four_point_stars(), n = 4, angle = 45, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "cross2")
{
L_System2D(cross2(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "cross3")
{
L_System2D(cross3(), n = 3, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "mango_leaf")
{
L_System2D(mango_leaf(), n = 64, angle = 60, w = 0.4); // Recommended n <= 64
}
else if (selected_curve == "maple_leaf")
{
L_System2D(maple_leaf(), n = 4, angle = 60, w = 0.2); // Recommended n <= 5
}
else if (selected_curve == "maple_leaf2")
{
L_System2D(maple_leaf2(), n = 3, angle = 60, w = 0.2); // Recommended n <= 4
}
else if (selected_curve == "rose_triangles")
{
L_System2D(rose_triangles(), n = 4, angle = 60, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "hexagons")
{
L_System2D(hexagons(), n = 4, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "hexagon_star")
{
L_System2D(hexagon_star(), n = 4, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "triangles_var3")
{
L_System2D(triangles_var3(), n = 4, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "triangles_var4")
{
L_System2D(triangles_var4(), n = 4, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "dragon_root")
{
L_System2D(dragon_root(), n = 4, angle = 90, w = 0.4); // Recommended n <= 10
}
else if (selected_curve == "pinched_dragon_root")
{
L_System2D(pinched_dragon_root(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "crazy_dragon")
{
L_System2D(crazy_dragon(), n = 4, angle = 90, w = 0.4); // Recommended n <= 7
}
else if (selected_curve == "pinched_dragon_root")
{
L_System2D(pinched_dragon_root(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "crazy_dragon")
{
L_System2D(crazy_dragon(), n = 4, angle = 90, w = 0.4); // Recommended n <= 7
}
else if (selected_curve == "pine_dragon")
{
L_System2D(pine_dragon(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "trefoil_knots")
{
L_System2D(trefoil_knots(), n = 5, angle = 60, w = 0.4); // Recommended n <= 9
}
else if (selected_curve == "brain_dragon")
{
L_System2D(brain_dragon(), n = 4, angle = 90, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "triangular_grid")
{
L_System2D(triangular_grid(), n = 4, angle = 60, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "triangles_var5")
{
L_System2D(triangles_var5(), n = 3, angle = 60, w = 0.2); // Recommended n <= 5
}
else if (selected_curve == "octagons")
{
L_System2D(octagons(), n = 5, angle = 45, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "triangles_var1")
{
L_System2D(triangles_var1(), n = 3, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "triangles_var2")
{
L_System2D(triangles_var2(), n = 3, angle = 60, w = 0.4); // Recommended n <= 6
}
else if (selected_curve == "peano_gosper")
{
L_System2D(peano_gosper(), n = 2, angle = 90, w = 0.4); // Recommended n <= 5
}
else if (selected_curve == "gosper_tri")
{
L_System2D(gosper_tri(), n = 3, angle = 60, w = 0.4); // Recommended n <= 4
}
else if (selected_curve == "dragon_lobes")
{
L_System2D(dragon_lobes(), n = 9, angle = 45, w = 0.4); // Recommended n <= 12
}
else if (selected_curve == "carpet6")
{
L_System2D(carpet6(), n = 3, angle = 90, w = 0.4); // Recommended n <= 4
}
else if (selected_curve == "peano_variation1")
{
L_System2D(peano_variation1(), n = 3, angle = 90, w = 0.4); // Recommended n <= 5
}
else
{
echo("Selected curve is not defined.");
}
examples/showcase_lines_2d.scad on GitHub
The 2D curves that close into a shape, drawn as filled polygons.
Pick a curve from the dropdown.
Source: examples/showcase_poly_2d.scad
// The 2D curves that close into a shape, drawn as filled polygons.
// Pick a curve from the dropdown.
use <../l_systems.scad>;
// ================================
// Configuration: Select Your Curve
// ================================
selected_curve = "fractal_var1"; // [koch_snowflake, segment_x, gosper_variation_tree, koch_snowflake_variant, square_sierpinski, x_border_joined_cross_curves, jaggy_cross, triangles_var6, fractal_var1]
// ================================
// Curve Selection Logic
// ================================
if (selected_curve == "koch_snowflake")
{
L_System2D(koch_snowflake(), n = 5); // Recommended n <= 8
}
else if (selected_curve == "segment_x")
{
L_System2D(segment_x(), n = 2); // Recommended n <= 3
}
else if (selected_curve == "gosper_variation_tree")
{
L_System2D(gosper_variation_tree(), n = 3); // Recommended n <= 4
}
else if (selected_curve == "koch_snowflake_variant")
{
L_System2D(koch_snowflake_variant(), n = 3); // Recommended n <= 8
}
else if (selected_curve == "square_sierpinski")
{
L_System2D(square_sierpinski(), n = 3); // Recommended n <= 8
}
else if (selected_curve == "x_border_joined_cross_curves")
{
L_System2D(x_border_joined_cross_curves(), n = 3); // Recommended n <= 6
}
else if (selected_curve == "jaggy_cross")
{
L_System2D(jaggy_cross(), n = 4); // Recommended n <= 6
}
else if (selected_curve == "triangles_var6")
{
L_System2D(triangles_var6(), n = 2); // Recommended n <= 6
}
else if (selected_curve == "fractal_var1")
{
L_System2D(fractal_var1(), n = 5); // Recommended n <= 10
}
else
{
echo("Selected curve is not defined.");
}
examples/showcase_poly_2d.scad on GitHub
User script showing how to override the library settings.
Settings are $-special variables (dynamically scoped), so they work with use as well as include, and can also be overridden per call.
Source: examples/usage_override.scad
// User script showing how to override the library settings.
// Settings are $-special variables (dynamically scoped), so they work with
// `use` as well as `include`, and can also be overridden per call.
use <../l_systems.scad>;
$ls_rounded = false; // Disable rounded corners (faster preview)
$ls_debug = false; // true echoes the rule tables, instructions and coordinates
$fn = 8; // Reduce fragment resolution for rounded corners
// Lévy Dragon
module levy_dragon(n = 10, angle = 45, w = 0.4)
{
L_System2D("F", ["F=+F--F+"], n, angle, w);
}
levy_dragon();
// Per-call override: this one gets rounded corners despite the global setting
translate([ 30, 0 ]) levy_dragon($ls_rounded = true);
examples/usage_override.scad on GitHub
User script showing how to render a predefined curve from the catalog.
Source: examples/usage_predefined.scad
// User script showing how to render a predefined curve from the catalog.
use <../l_systems.scad>;
// A grammar tuple carries its own curated defaults (angle, n, ...):
L_System2D(moore_square());
// Explicit arguments override the tuple's params:
translate([ 40, 0 ]) L_System2D(moore_square(), n = 4, angle = 80, w = 1);
// The tuple is plain data: [0] is the axiom, [1] the rules
echo("moore_square axiom:", moore_square()[0]);
examples/usage_predefined.scad on GitHub
A custom grammar in one call: the Lévy dragon, extruded 1 mm.
Source: examples/usage_simple.scad
// A custom grammar in one call: the Lévy dragon, extruded 1 mm.
use <../l_systems.scad>;
// Lévy Dragon
module levy_dragon(n = 10, angle = 45, w = 0.4)
{
L_System2D("F", ["F=+F--F+"], n, angle, w);
}
linear_extrude(1) levy_dragon(n = 11, angle = 45, w = 0.6);