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add fn

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Justin Lin
2019-10-25 18:24:29 +08:00
parent db239d34cb
commit 367c9e4b9d
1 changed files with 7 additions and 3 deletions
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10
examples/simple_seashell.scad
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@@ -2,7 +2,7 @@ include <circle_path.scad>;
include <rotate_p.scad>; include <rotate_p.scad>;
include <polysections.scad>; include <polysections.scad>;
r1 = 15; r1 = 0.1;
r2 = 50; r2 = 50;
a1 = 1; a1 = 1;
@@ -10,6 +10,8 @@ a2 = 450;
steps = 40; steps = 40;
$fn = 48;
module simple_seashell(r1, r2, a1, a2, steps) { module simple_seashell(r1, r2, a1, a2, steps) {
rd = (r2 - r1) / steps; rd = (r2 - r1) / steps;
ad = (a2 - a1) / steps; ad = (a2 - a1) / steps;
@@ -20,8 +22,10 @@ module simple_seashell(r1, r2, a1, a2, steps) {
r = r1 + rd * i, r = r1 + rd * i,
a = a1 + i * ad a = a1 + i * ad
) )
[for(p = concat(circle_path(r), circle_path(r * 0.9))) [
rotate_p([p[0], p[1], 0] + [r, 0, 0], [0, a, 0])] for(p = concat(circle_path(r), circle_path(r * 0.9)))
rotate_p([p[0], p[1], 0] + [r, 0, 0], [0, a, 0])
]
]; ];