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104 lines
2.7 KiB
Markdown
104 lines
2.7 KiB
Markdown
# along_with
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If you want to place objects precisely, their points and angles are required. When you have only points or you don't care their precise angles, `along_with` puts children along the given path. If there's only one child, it will put the child for each point.
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## Parameters
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- `points` : The points along the path.
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- `angles` : Rotate before translate each child. If not given, rotate children automatically according to `points` and `method`.
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- `twist` : If given, each child will be twisted before applying each element of `points` and `angles`.
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- `scale` : If given, each child will be scaled before applying each element of `points` and `angles`. It accepts a single value, `[sx, sy]` or `[sx, sy, sz]`.
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- `method` : Which method does `along_with` take to **guess** how to rotate children if `angles` is not specified? It accepts two value, `"AXIS_ANGLE"` (default) and `"EULER_ANGLE"`. See `path_extrude` for more information. **Since:** 1.3
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## Examples
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use <along_with.scad>;
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use <shape_circle.scad>;
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$fn = 24;
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points = shape_circle(radius = 50);
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along_with(points)
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sphere(5);
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use <along_with.scad>;
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use <shape_circle.scad>;
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$fn = 24;
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points = shape_circle(radius = 50);
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along_with(points) {
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linear_extrude(10, center = true) text("A", valign = "center", halign = "center");
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linear_extrude(5, center = true) circle(2);
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sphere(1);
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cube(5);
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linear_extrude(10, center = true) text("A", valign = "center", halign = "center");
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linear_extrude(5, center = true) circle(2);
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sphere(1);
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cube(5);
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}
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use <along_with.scad>;
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use <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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points = [for(p_a = pts_angles) p_a[0]];
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angles = [for(p_a = pts_angles) p_a[1]];
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along_with(points, angles)
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rotate([90, 0, 0])
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linear_extrude(1, center = true)
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text("A", valign = "center", halign = "center");
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use <bezier_curve.scad>;
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use <along_with.scad>;
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module scales() {
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module one_scale() {
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rotate([0, 60, 0])
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linear_extrude(1, center = true)
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scale([2, 1])
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circle(1.25, $fn = 24);
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}
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for(a = [0:30:330]) {
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rotate(a)
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translate([5, 0, 0])
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one_scale();
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rotate(a + 15)
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translate([5, 0, 1.75])
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one_scale();
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}
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}
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t_step = 0.01;
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p0 = [0, 0, 0];
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p1 = [0, 50, 35];
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p2 = [-100, 70, 0];
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p3 = [30, 120, -35];
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p4 = [30, 150, -40];
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p5 = [0, 200, -3];
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path_pts = bezier_curve(t_step,
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[p0, p1, p2, p3, p4, p5]
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);
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along_with(path_pts, scale = 0.5)
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scales();
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