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More efficient and flexible implementation for roundedBox/roundedCube.

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Hans Loeblich 2019-11-10 18:37:57 -06:00
parent b21ef47a55
commit e08302349e
1 changed files with 29 additions and 26 deletions
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boxes.scad
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@ -4,40 +4,43 @@
// Copyright: 2010
// License: 2-clause BSD License (http://opensource.org/licenses/BSD-2-Clause)
// roundedBox([width, height, depth], float radius, bool sidesonly);
//
// roundedCube([x, y, z], r, sidesonly=true/false, center=true/false);
// roundedCube(x, r, sidesonly=true/false, center=true/false);
// EXAMPLE USAGE:
// roundedBox([20, 30, 40], 5, true);
// roundedCube([20, 30, 40], 5, true, true);
// size is a vector [w, h, d]
// Only for backwards compatibility with existing scripts, (always centered, radius instead of consistent "r" naming.
module roundedBox(size, radius, sidesonly)
{
rot = [ [0,0,0], [90,0,90], [90,90,0] ];
echo("WARNING: roundedBox(size, radius, sidesonly) is deprecated, use roundedCube(size, r, sidesonly, center)");
roundedCube(size, radius, sidesonly, true);
}
// New implementation
module roundedCube(size, r, sidesonly, center) {
s = is_list(size) ? size : [size,size,size];
translate(center ? -s/2 : [0,0,0]) {
if (sidesonly) {
cube(size - [2*radius,0,0], true);
cube(size - [0,2*radius,0], true);
for (x = [radius-size[0]/2, -radius+size[0]/2],
y = [radius-size[1]/2, -radius+size[1]/2]) {
translate([x,y,0]) cylinder(r=radius, h=size[2], center=true);
hull() {
translate([ r, r]) cylinder(r=r, h=s[2]);
translate([ r,s[1]-r]) cylinder(r=r, h=s[2]);
translate([s[0]-r, r]) cylinder(r=r, h=s[2]);
translate([s[0]-r,s[1]-r]) cylinder(r=r, h=s[2]);
}
}
else {
cube([size[0], size[1]-radius*2, size[2]-radius*2], center=true);
cube([size[0]-radius*2, size[1], size[2]-radius*2], center=true);
cube([size[0]-radius*2, size[1]-radius*2, size[2]], center=true);
for (axis = [0:2]) {
for (x = [radius-size[axis]/2, -radius+size[axis]/2],
y = [radius-size[(axis+1)%3]/2, -radius+size[(axis+1)%3]/2]) {
rotate(rot[axis])
translate([x,y,0])
cylinder(h=size[(axis+2)%3]-2*radius, r=radius, center=true);
hull() {
translate([ r, r, r]) sphere(r=r);
translate([ r, r,s[2]-r]) sphere(r=r);
translate([ r,s[1]-r, r]) sphere(r=r);
translate([ r,s[1]-r,s[2]-r]) sphere(r=r);
translate([s[0]-r, r, r]) sphere(r=r);
translate([s[0]-r, r,s[2]-r]) sphere(r=r);
translate([s[0]-r,s[1]-r, r]) sphere(r=r);
translate([s[0]-r,s[1]-r,s[2]-r]) sphere(r=r);
}
}
for (x = [radius-size[0]/2, -radius+size[0]/2],
y = [radius-size[1]/2, -radius+size[1]/2],
z = [radius-size[2]/2, -radius+size[2]/2]) {
translate([x,y,z]) sphere(radius);
}
}
}