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thin fill checkpoint

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This commit is contained in:
Stewart Allen 2018-01-16 06:44:29 -05:00
commit 1a73b9670d
1 changed files with 19 additions and 9 deletions
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28
js/kiri-slice.js
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@ -405,6 +405,9 @@ var gs_kiri_slice = exports;
top.traces = last;
} else {
if (opt.thin) {
var sq2 = Math.sqrt(2),
ons2 = offset1 * sq2,
on2s2 = offsetN * sq2;
POLY.expand2(
[top.poly],
-offset1,
@ -425,15 +428,22 @@ var gs_kiri_slice = exports;
},
// thin wall probe
function(p1, p2, diff, dist) {
var pall = POLY.nest(POLY.flatten([].appendAll(p1).appendAll(p2)).clone()),
pnew1 = POLY.expand(pall, -dist, z, null, 1),
r1 = fillArea(pnew1, 45, offsetN, [], 0, offset1),
r2 = fillArea(pnew1, 135, offsetN, [], 0, offset1),
rall = top.thin_fill.appendAll(cullIntersections(r1, r2)),
pnew2 = POLY.expand(pnew1, -dist, z, null, 1),
r1 = fillArea(pnew2, 45, offsetN, [], 0, offset1),
r2 = fillArea(pnew2, 135, offsetN, [], 0, offset1),
rall = top.thin_fill.appendAll(cullIntersections(r1, r2));
var ds2 = dist * sq2;
if (p2) {
// nth offset
var pall = POLY.nest(POLY.flatten([].appendAll(p1).appendAll(p2)).clone()),
pnew1 = POLY.expand(pall, -dist, z, null, 1),
r1 = fillArea(pnew1, 45, offsetN, [], ds2, on2s2),
r2 = fillArea(pnew1, 135, offsetN, [], dist, on2s2),
rall = top.thin_fill.appendAll(cullIntersections(r1, r2));
} else {
// first offset
var pall = POLY.nest(POLY.flatten([].appendAll(p1).appendAll(p2)).clone()),
pnew1 = POLY.expand(pall, -dist, z, null, 1),
r1 = fillArea(pnew1, 45, offsetN, [], 0, ons2),
r2 = fillArea(pnew1, 135, offsetN, [], 0, ons2),
rall = top.thin_fill.appendAll(cullIntersections(r1, r2));
}
// top.thinner.appendAll(pnew1).appendAll(pnew2);
},
z);