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52 lines
1.4 KiB
Markdown
52 lines
1.4 KiB
Markdown
# golden_spiral
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Gets all points and angles on the path of a golden spiral based on Fibonacci numbers. The distance between two points is almost constant.
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It returns a vector of `[[x, y], angle]`.
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Because of depending on `circle_path` and `rotate_p`, remember to include "circle_path.scad" and "rotate_p.scad".
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## Parameters
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- `from` : The nth Fibonacci number you wanna start from.
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- `to` : The nth Fibonacci number you wanna go to.
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- `point_distance` : Distance between two points on the path.
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- `rt_dir` : `"CT_CLK"` for counterclockwise. `"CLK"` for clockwise. The default value is `"CT_CLK"`.
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## Examples
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include <circle_path.scad>;
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include <rotate_p.scad>;
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include <golden_spiral.scad>;
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pts_angles = golden_spiral(
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from = 3,
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to = 10,
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point_distance = 1
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);
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for(pt_angle = pts_angles) {
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translate(pt_angle[0])
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sphere(0.5);
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}
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include <circle_path.scad>;
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include <rotate_p.scad>;
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include <golden_spiral.scad>;
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pts_angles = golden_spiral(
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from = 5,
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to = 11,
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point_distance = 4
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);
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for(pt_angle = pts_angles) {
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translate(pt_angle[0])
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rotate([90, 0, pt_angle[1]])
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linear_extrude(1, center = true)
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text("A", valign = "center", halign = "center");
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}
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