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Added rounding= option to various 2D Ngons.

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Revar Desmera 2020-01-14 16:23:35 -08:00
parent 5a9d15c1a5
commit ab66cb5788
2 changed files with 31 additions and 16 deletions
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45
shapes2d.scad
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@ -582,6 +582,7 @@ function _turtle_command(command, parm, parm2, state, index) =
// ir = Inside radius, at center of sides.
// id = Inside diameter, at center of sides.
// side = Length of each side.
// rounding = Radius of rounding for the tips of the polygon. Default: 0 (no rounding)
// realign = If false, a tip is aligned with the Y+ axis. If true, the midpoint of a side is aligned with the Y+ axis. Default: false
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#anchor). Default: `CENTER`
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#spin). Default: `0`
@ -597,15 +598,26 @@ function _turtle_command(command, parm, parm2, state, index) =
// regular_ngon(n=8, side=20, realign=true);
// Example(2D): Called as Function
// stroke(closed=true, regular_ngon(n=6, or=30));
function regular_ngon(n=6, r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0) =
function regular_ngon(n=6, r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0) =
let(
sc = 1/cos(180/n),
r = get_radius(r1=ir*sc, r2=or, r=r, d1=id*sc, d2=od, d=d, dflt=side/2/sin(180/n)),
path = circle(r=r, realign=realign, spin=90, $fn=n)
path = rounding==0? circle(r=r, realign=realign, spin=90, $fn=n) :
let(
steps = floor(segs(r)/n),
step = 360/n/steps
) [
for (i=[0:1:n-1], j=[0:1:steps]) let(
a = 90 - (realign? 180/n : 0) - i*360/n,
b = a + 180/n - j*step
)
(r-rounding*sc)*[cos(a),sin(a)] +
rounding*[cos(b),sin(b)]
]
) rot(spin, p=move(-r*normalize(anchor), p=path));
module regular_ngon(n=6, r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0) {
module regular_ngon(n=6, r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0) {
sc = 1/cos(180/n);
r = get_radius(r1=ir*sc, r2=or, r=r, d1=id*sc, d2=od, d=d, dflt=side/2/sin(180/n));
orient_and_anchor([2*r,2*r,0], UP, anchor, spin=spin, geometry="cylinder", two_d=true, chain=true) {
@ -631,6 +643,7 @@ module regular_ngon(n=6, r, d, or, od, ir, id, side, realign=false, anchor=CENTE
// ir = Inside radius, at center of sides.
// id = Inside diameter, at center of sides.
// side = Length of each side.
// rounding = Radius of rounding for the tips of the polygon. Default: 0 (no rounding)
// realign = If false, a tip is aligned with the Y+ axis. If true, the midpoint of a side is aligned with the Y+ axis. Default: false
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#anchor). Default: `CENTER`
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#spin). Default: `0`
@ -646,12 +659,12 @@ module regular_ngon(n=6, r, d, or, od, ir, id, side, realign=false, anchor=CENTE
// pentagon(side=20, realign=true);
// Example(2D): Called as Function
// stroke(closed=true, pentagon(or=30));
function pentagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0) =
regular_ngon(n=5, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, realign=realign, anchor=anchor, spin=spin);
function pentagon(r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0) =
regular_ngon(n=5, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, rounding=rounding, realign=realign, anchor=anchor, spin=spin);
module pentagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0)
regular_ngon(n=5, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, realign=realign, anchor=anchor, spin=spin) children();
module pentagon(r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0)
regular_ngon(n=5, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, rounding=rounding, realign=realign, anchor=anchor, spin=spin) children();
// Function&Module: hexagon()
@ -668,6 +681,7 @@ module pentagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0
// ir = Inside radius, at center of sides.
// id = Inside diameter, at center of sides.
// side = Length of each side.
// rounding = Radius of rounding for the tips of the polygon. Default: 0 (no rounding)
// realign = If false, a tip is aligned with the Y+ axis. If true, the midpoint of a side is aligned with the Y+ axis. Default: false
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#anchor). Default: `CENTER`
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#spin). Default: `0`
@ -683,12 +697,12 @@ module pentagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0
// hexagon(side=20, realign=true);
// Example(2D): Called as Function
// stroke(closed=true, hexagon(or=30));
function hexagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0) =
regular_ngon(n=6, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, realign=realign, anchor=anchor, spin=spin);
function hexagon(r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0) =
regular_ngon(n=6, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, rounding=rounding, realign=realign, anchor=anchor, spin=spin);
module hexagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0)
regular_ngon(n=6, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, realign=realign, anchor=anchor, spin=spin) children();
module hexagon(r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0)
regular_ngon(n=6, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, rounding=rounding, realign=realign, anchor=anchor, spin=spin) children();
// Function&Module: octagon()
@ -705,6 +719,7 @@ module hexagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0)
// ir = Inside radius, at center of sides.
// id = Inside diameter, at center of sides.
// side = Length of each side.
// rounding = Radius of rounding for the tips of the polygon. Default: 0 (no rounding)
// realign = If false, a tip is aligned with the Y+ axis. If true, the midpoint of a side is aligned with the Y+ axis. Default: false
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#anchor). Default: `CENTER`
// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#spin). Default: `0`
@ -720,12 +735,12 @@ module hexagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0)
// octagon(side=20, realign=true);
// Example(2D): Called as Function
// stroke(closed=true, octagon(or=30));
function octagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0) =
regular_ngon(n=8, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, realign=realign, anchor=anchor, spin=spin);
function octagon(r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0) =
regular_ngon(n=8, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, rounding=rounding, realign=realign, anchor=anchor, spin=spin);
module octagon(r, d, or, od, ir, id, side, realign=false, anchor=CENTER, spin=0)
regular_ngon(n=8, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, realign=realign, anchor=anchor, spin=spin) children();
module octagon(r, d, or, od, ir, id, side, rounding=0, realign=false, anchor=CENTER, spin=0)
regular_ngon(n=8, r=r, d=d, or=or, od=od, ir=ir, id=id, side=side, rounding=rounding, realign=realign, anchor=anchor, spin=spin) children();

2
version.scad
View file

@ -8,7 +8,7 @@
//////////////////////////////////////////////////////////////////////
BOSL_VERSION = [2,0,84];
BOSL_VERSION = [2,0,85];
// Section: BOSL Library Version Functions