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Code Issues Releases Wiki Activity

support joinStyle: "JOIN_ROUND", "JOIN_BEVEL"

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Justin Lin
2020-05-21 10:26:03 +08:00
parent 99c5972351
commit 6a5aac7fd8
1 changed files with 19 additions and 12 deletions
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19
src/polyline2d.scad
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@@ -11,7 +11,7 @@
use <line2d.scad>; use <line2d.scad>;
use <pie.scad>; use <pie.scad>;
module polyline2d(points, width, startingStyle = "CAP_SQUARE", endingStyle = "CAP_SQUARE") { module polyline2d(points, width, startingStyle = "CAP_SQUARE", endingStyle = "CAP_SQUARE", joinStyle = "JOIN_ROUND") {
leng_pts = len(points); leng_pts = len(points);
s_styles = [startingStyle, "CAP_BUTT"]; s_styles = [startingStyle, "CAP_BUTT"];
@@ -49,7 +49,7 @@ module polyline2d(points, width, startingStyle = "CAP_SQUARE", endingStyle = "CA
) )
acos((v1 * v2) / (norm(v1) * norm(v2))); acos((v1 * v2) / (norm(v1) * norm(v2)));
module pies(line, radius, i_end, i) { module joins(line, radius, i_end, i) {
if(i < i_end) { if(i < i_end) {
p1 = line[i]; p1 = line[i];
p2 = line[i + 1]; p2 = line[i + 1];
@@ -61,20 +61,27 @@ module polyline2d(points, width, startingStyle = "CAP_SQUARE", endingStyle = "CA
a = angle(p1, p2, p3); a = angle(p1, p2, p3);
v1a = atan2(v1[1], v1[0]); v1a = atan2(v1[1], v1[0]);
translate(p2) ra = c > 0 ? (-90 + v1a) : (90 + v1a - a);
rotate(c > 0 ? (-90 + v1a) : (90 + v1a - a)) if(joinStyle == "JOIN_ROUND") {
#translate(p2)
rotate(ra)
pie( pie(
radius = radius, radius = radius,
angle = [0, a], angle = [0, a],
$fn = $fn * 360 / a $fn = $fn * 360 / a
); );
} else { // "JOIN_BEVEL"
#translate(p2)
rotate(ra)
polygon([[0, 0], [radius, 0], [radius * cos(a), radius * sin(a)]]);
}
pies(line, radius, i_end, i + 1); joins(line, radius, i_end, i + 1);
} }
} }
lines(1); lines(1);
pies(points, width / 2, leng_pts - 2, 0); joins(points, width / 2, leng_pts - 2, 0);
} }
// override it to test // override it to test