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Justin Lin
2017-03-15 15:38:59 +08:00
parent fcf17de18c
commit b420a9bae3
3 changed files with 43 additions and 43 deletions
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12
src/arc.scad
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@@ -19,11 +19,11 @@ LINE_INWARD = 2;
module arc(radius, angles, width, width_mode = LINE_CROSS, fn = 24) { module arc(radius, angles, width, width_mode = LINE_CROSS, fn = 24) {
w_offset = width_mode == LINE_CROSS ? [width / 2, -width / 2] : ( w_offset = width_mode == LINE_CROSS ? [width / 2, -width / 2] : (
width_mode == LINE_INWARD ? [0, -width] : [width, 0] width_mode == LINE_INWARD ? [0, -width] : [width, 0]
); );
difference() { difference() {
sector(radius + w_offset[0], angles, fn); sector(radius + w_offset[0], angles, fn);
sector(radius + w_offset[1], angles, fn); sector(radius + w_offset[1], angles, fn);
} }
} }

50
src/line2d.scad
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@@ -17,14 +17,14 @@ CAP_ROUND = 2;
module line2d(p1, p2, width, p1Style = CAP_SQUARE, p2Style = CAP_SQUARE, round_fn = 24) { module line2d(p1, p2, width, p1Style = CAP_SQUARE, p2Style = CAP_SQUARE, round_fn = 24) {
$fn = round_fn; $fn = round_fn;
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;
offset_x = half_width * cos(angle); offset_x = half_width * cos(angle);
offset_y = half_width * sin(angle); offset_y = half_width * sin(angle);
offset1 = [-offset_x, offset_y]; offset1 = [-offset_x, offset_y];
offset2 = [offset_x, -offset_y]; offset2 = [offset_x, -offset_y];
@@ -32,27 +32,27 @@ module line2d(p1, p2, width, p1Style = CAP_SQUARE, p2Style = CAP_SQUARE, round_
p1 + offset1, p2 + offset1, p1 + offset1, p2 + offset1,
p2 + offset2, p1 + offset2 p2 + offset2, p1 + offset2
]); ]);
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); circle(half_width, center = true);
} }
if(p1Style == CAP_SQUARE) { if(p1Style == CAP_SQUARE) {
square_end(p1); square_end(p1);
} else if(p1Style == CAP_ROUND) { } else if(p1Style == CAP_ROUND) {
round_end(p1); round_end(p1);
} }
if(p2Style == CAP_SQUARE) { if(p2Style == CAP_SQUARE) {
square_end(p2); square_end(p2);
} else if(p2Style == CAP_ROUND) { } else if(p2Style == CAP_ROUND) {
round_end(p2); round_end(p2);
} }
} }

24
src/polyline2d.scad
View File

@@ -12,21 +12,21 @@
module polyline2d(points, width, startingStyle = CAP_SQUARE, endingStyle = CAP_SQUARE, round_fn = 24) { module polyline2d(points, width, startingStyle = CAP_SQUARE, endingStyle = CAP_SQUARE, round_fn = 24) {
module line_segment(index) { module line_segment(index) {
styles = index == 1 ? [startingStyle, CAP_ROUND] : ( styles = index == 1 ? [startingStyle, CAP_ROUND] : (
index == len(points) - 1 ? [CAP_ROUND, endingStyle] : [ index == len(points) - 1 ? [CAP_ROUND, endingStyle] : [
CAP_ROUND, CAP_ROUND CAP_ROUND, CAP_ROUND
] ]
); );
line2d(points[index - 1], points[index], width, line2d(points[index - 1], points[index], width,
p1Style = styles[0], p2Style = styles[1], p1Style = styles[0], p2Style = styles[1],
round_fn = round_fn); round_fn = round_fn);
} }
module polyline2d_inner(points, index) { module polyline2d_inner(points, index) {
if(index < len(points)) { if(index < len(points)) {
line_segment(index); line_segment(index);
polyline2d_inner(points, index + 1); polyline2d_inner(points, index + 1);
} }
} }