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I deleted wrong file XD

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Justin Lin
2019-04-29 15:28:06 +08:00
parent 87052bb172
commit fe66e2effa
2 changed files with 73 additions and 46 deletions
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73
src/rounded_extrude.scad Normal file
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/**
* rounded_extrude.scad
*
* Extrudes a 2D object roundly from 0 to 180 degrees.
*
* @copyright Justin Lin, 2017
* @license https://opensource.org/licenses/lgpl-3.0.html
*
* @see https://openhome.cc/eGossip/OpenSCAD/lib-rounded_extrude.html
*
**/
include <__private__/__frags.scad>;
include <__private__/__is_vector.scad>;
module rounded_extrude(size, round_r, angle = 90, twist = 0, convexity = 10) {
is_vt = __is_vector(size);
x = is_vt ? size[0] : size;
y = is_vt ? size[1] : size;
q_corner_frags = __frags(round_r) / 4;
step_a = angle / q_corner_frags;
twist_step = twist / q_corner_frags;
module layers(pre_x, pre_y, pre_h = 0, i = 1) {
module one_layer(current_a) {
wx = pre_x;
wy = pre_y;
h = (round_r - pre_h) - round_r * cos(current_a);
d_leng =
round_r * (sin(current_a) - sin(step_a * (i - 1)));
sx = (d_leng * 2 + wx) / wx;
sy = (d_leng * 2 + wy) / wy;
translate([0, 0, pre_h])
rotate(-twist_step * (i - 1))
linear_extrude(
h,
slices = 1,
scale = [sx, sy],
convexity = convexity,
twist = twist_step
) scale([wx / x, wy / y])
children();
test_rounded_extrude_data(i, wx, wy, pre_h, sx, sy);
layers(wx * sx, wy * sy, h + pre_h, i + 1)
children();
}
if(i <= q_corner_frags) {
one_layer(i * step_a)
children();
} else if(i - q_corner_frags < 1) {
one_layer(q_corner_frags * step_a)
children();
}
}
layers(x, y)
children();
}
module test_rounded_extrude_data(i, wx, wy, pre_h, sx, sy) {
}

46
test/test_rounded_extrude.scad
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include <unittest.scad>;
module test_rounded_extrude() {
echo("==== test_rounded_extrude ====");
include <rounded_extrude.scad>;
expected_data =
[
[],
[20, 20, 0, 1.06526, 1.06526],
[21.3053, 21.3053, 0.0427757, 1.06022, 1.06022],
[22.5882, 22.5882, 0.170371, 1.05484, 1.05484],
[23.8268, 23.8268, 0.380602, 1.04924, 1.04924],
[25, 25, 0.669873, 1.0435, 1.0435],
[26.0876, 26.0876, 1.03323, 1.0377, 1.0377],
[27.0711, 27.0711, 1.46447, 1.03186, 1.03186],
[27.9335, 27.9335, 1.95619, 1.02602, 1.02602],
[28.6603, 28.6603, 2.5, 1.02019, 1.02019],
[29.2388, 29.2388, 3.08658, 1.01438, 1.01438],
[29.6593, 29.6593, 3.7059, 1.0086, 1.0086],
[29.9144, 29.9144, 4.34737, 1.00286, 1.00286]
];
module test_rounded_extrude_data(i, wx, wy, pre_h, sx, sy) {
data = [wx, wy, pre_h, sx, sy];
for(j = [0:4]) {
expected = round_n(expected_data[i][j]);
actual = round_n(data[j]);
assertEqual(expected, actual);
}
}
$fn = 48;
circle_r = 10;
round_r = 5;
rounded_extrude(circle_r * 2, round_r)
circle(circle_r);
}
test_rounded_extrude();