openscad/dotSCAD
1
0
Fork 0
mirror of https://github.com/JustinSDK/dotSCAD.git synced 2025-08-21 05:52:16 +02:00
Code Issues Releases Wiki Activity

reduce deps

Browse Source
This commit is contained in:
Justin Lin
2020-01-27 09:24:53 +08:00
parent a1626d88f3
commit d8c4d8f51f
3 changed files with 33 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/__comm__/__shape_arc.scad
View File

@@ -1,29 +0,0 @@
function __shape_arc(radius, angle, width, width_mode = "LINE_CROSS") =
let(
w_offset = width_mode == "LINE_CROSS" ? [width / 2, -width / 2] :
width_mode == "LINE_INWARD" ? [0, -width] : [width, 0],
a_step = 360 / __frags(radius),
half_a_step = a_step / 2,
angles = is_num(angle) ? [0, angle] : angle,
m = floor(angles[0] / a_step) + 1,
n = floor(angles[1] / a_step),
r_outer = radius + w_offset[0],
r_inner = radius + w_offset[1],
points = concat(
// outer arc path
[__ra_to_xy(__edge_r_begin(r_outer, angles[0], a_step, m), angles[0])],
m > n ? [] : [
for(i = m; i <= n; i = i + 1) __ra_to_xy(r_outer, a_step * i)
],
angles[1] == a_step * n ? [] : [__ra_to_xy(__edge_r_end(r_outer, angles[1], a_step, n), angles[1])],
// inner arc path
angles[1] == a_step * n ? [] : [__ra_to_xy(__edge_r_end(r_inner, angles[1], a_step, n), angles[1])],
m > n ? [] : [
for(i = m; i <= n; i = i + 1)
let(idx = (n + (m - i)))
__ra_to_xy(r_inner, a_step * idx)
],
[__ra_to_xy(__edge_r_begin(r_inner, angles[0], a_step, m), angles[0])]
)
) points;

7
src/arc.scad
View File

@@ -8,11 +8,8 @@
* *
**/ **/
include <__comm__/__frags.scad>; use <shape_arc.scad>;
include <__comm__/__ra_to_xy.scad>;
include <__comm__/__edge_r.scad>;
include <__comm__/__shape_arc.scad>;
module arc(radius, angle, width, width_mode = "LINE_CROSS") { module arc(radius, angle, width, width_mode = "LINE_CROSS") {
polygon(__shape_arc(radius, angle, width, width_mode)); polygon(shape_arc(radius, angle, width, width_mode));
} }

36
src/shape_arc.scad
View File

@@ -8,10 +8,36 @@
* *
**/ **/
include <__comm__/__frags.scad>; use <__comm__/__frags.scad>;
include <__comm__/__ra_to_xy.scad>; use <__comm__/__ra_to_xy.scad>;
include <__comm__/__shape_arc.scad>; use <__comm__/__edge_r.scad>
include <__comm__/__edge_r.scad>
function shape_arc(radius, angle, width, width_mode = "LINE_CROSS") = function shape_arc(radius, angle, width, width_mode = "LINE_CROSS") =
__shape_arc(radius, angle, width, width_mode); let(
w_offset = width_mode == "LINE_CROSS" ? [width / 2, -width / 2] :
width_mode == "LINE_INWARD" ? [0, -width] : [width, 0],
a_step = 360 / __frags(radius),
half_a_step = a_step / 2,
angles = is_num(angle) ? [0, angle] : angle,
m = floor(angles[0] / a_step) + 1,
n = floor(angles[1] / a_step),
r_outer = radius + w_offset[0],
r_inner = radius + w_offset[1],
points = concat(
// outer arc path
[__ra_to_xy(__edge_r_begin(r_outer, angles[0], a_step, m), angles[0])],
m > n ? [] : [
for(i = m; i <= n; i = i + 1) __ra_to_xy(r_outer, a_step * i)
],
angles[1] == a_step * n ? [] : [__ra_to_xy(__edge_r_end(r_outer, angles[1], a_step, n), angles[1])],
// inner arc path
angles[1] == a_step * n ? [] : [__ra_to_xy(__edge_r_end(r_inner, angles[1], a_step, n), angles[1])],
m > n ? [] : [
for(i = m; i <= n; i = i + 1)
let(idx = (n + (m - i)))
__ra_to_xy(r_inner, a_step * idx)
],
[__ra_to_xy(__edge_r_begin(r_inner, angles[0], a_step, m), angles[0])]
)
) points;