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fixed variable problem and refactored

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This commit is contained in:
Justin Lin 2017-05-19 11:24:43 +08:00
parent c9ce69712b
commit 34b03780d1
2 changed files with 51 additions and 12 deletions
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44
docs/lib-along_with.md
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@ -5,7 +5,7 @@ Puts children along the given path. If there's only one child, it will put the c
## Parameters
- `points` : The points along the path.
- `angles` : If it's given, rotate before translate each child.
- `angles` : Rotate before translate each child. If not given, `angles` will be calculated automatically according to `points`.
## Examples
@ -60,4 +60,44 @@ Puts children along the given path. If there's only one child, it will put the c
linear_extrude(1, center = true)
text("A", valign = "center", halign = "center");
![along_with](images/lib-along_with-3.JPG)
![along_with](images/lib-along_with-3.JPG)
include <bezier_curve.scad>;
include <along_with.scad>;
module scales() {
module one_scale() {
rotate([0, 60, 0])
linear_extrude(1, center = true)
scale([2, 1])
circle(1.25, $fn = 24);
}
for(a = [0:30:360 - 15]) {
rotate(a)
translate([5, 0, 0])
one_scale();
rotate(a + 15)
translate([5, 0, 1.75])
one_scale();
}
}
t_step = 0.01;
p0 = [0, 0, 0];
p1 = [0, 50, 35];
p2 = [-100, 70, 0];
p3 = [30, 120, -35];
p4 = [30, 150, -40];
p5 = [0, 200, -3];
path_pts = bezier_curve(t_step,
[p0, p1, p2, p3, p4, p5]
);
along_with(path_pts)
scales();
![along_with](images/lib-along_with-4.JPG)

19
src/along_with.scad
View File

@ -14,26 +14,25 @@
include <__private__/__angy_angz.scad>;
module along_with(points, angles) {
function _path_angles(path_pts, leng_path_pts, i = 0) =
i == leng_path_pts - 1 ?
leng_points = len(points);
function _path_angles(i = 0) =
i == leng_points - 1 ?
[] :
concat(
[__angy_angz(path_pts[i], path_pts[i + 1])],
_path_angles(path_pts, leng_path_pts, i + 1)
[__angy_angz(points[i], points[i + 1])],
_path_angles(i + 1)
);
function path_angles(path_pts) =
let(
leng_path_pts = len(path_pts),
angs = _path_angles(path_pts, leng_path_pts)
)
function path_angles(points) =
let(angs = _path_angles())
concat(
[[0, -angs[0][0], angs[0][1]]],
[for(a = angs) [0, -a[0], a[1]]]
);
angles_defined = angles != undef;
angs = angles_defined ? angles : path_angles(path_pts);
angs = angles_defined ? angles : path_angles(points);
module align(i) {
translate(points[i])