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fixed end precision

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Justin Lin
2017-04-22 16:29:49 +08:00
parent e0371aa4b7
commit 0e7af027aa
1 changed files with 11 additions and 3 deletions
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14
src/line2d.scad
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@@ -11,7 +11,7 @@
**/ **/
module line2d(p1, p2, width, p1Style = "CAP_SQUARE", p2Style = "CAP_SQUARE") { module line2d(p1, p2, width, p1Style = "CAP_SQUARE", p2Style = "CAP_SQUARE") {
half_width = 0.5 * width; half_width = 0.5 * width;
atan_angle = atan2(p2[1] - p1[1], p2[0] - p1[0]); atan_angle = atan2(p2[1] - p1[1], p2[0] - p1[0]);
angle = 90 - atan_angle; angle = 90 - atan_angle;
@@ -27,15 +27,23 @@ module line2d(p1, p2, width, p1Style = "CAP_SQUARE", p2Style = "CAP_SQUARE") {
p2 + offset2, p1 + offset2 p2 + offset2, p1 + offset2
]); ]);
frags = $fn > 0 ?
($fn >= 3 ? $fn : 3) :
max(min(360 / $fa, half_width * 2 * 3.14159 / $fs), 5);
remain = frags % 4;
end_frags = (remain / 4) > 0.5 ? frags - remain + 4 : frags - remain;
module square_end(point) { module square_end(point) {
translate(point) translate(point)
rotate(atan_angle) rotate(atan_angle)
square(width, center = true); square(width, center = true);
} }
module round_end(point) { module round_end(point) {
translate(point) translate(point)
circle(half_width, center = true); rotate(atan_angle)
circle(half_width, center = true, $fn = end_frags);
} }
if(p1Style == "CAP_SQUARE") { if(p1Style == "CAP_SQUARE") {