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rewrote to use polygon

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Justin Lin
2017-05-07 15:05:22 +08:00
parent dcc05778e2
commit a442ef68e0
1 changed files with 12 additions and 11 deletions
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23
src/circular_sector.scad
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@@ -15,18 +15,19 @@ include <__private__/__frags.scad>;
module circular_sector(radius, angles) {
frags = __frags(radius);
r = radius / cos(180 / frags);
step = -360 / frags;
points = concat([[0, 0]],
[for(a = [angles[0] : step : angles[1] - 360])
[r * cos(a), r * sin(a)]
a_step = 360 / frags;
m = floor(angles[0] / a_step) + 1;
n = floor(angles[1] / a_step);
points = concat(
[[0, 0], radius * [cos(angles[0]), sin(angles[0])]],
[
for(i = [m:n])
radius * [cos(a_step * i), sin(a_step * i)]
],
[[r * cos(angles[1]), r * sin(angles[1])]]
[radius * [cos(angles[1]), sin(angles[1])]]
);
difference() {
circle(radius);
polygon(points);
}
polygon(points);
}