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Further improve colinar handling

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This commit is contained in:
be5invis 2021-05-31 01:40:17 -07:00
parent 229d624ebf
commit 9d8fe1c3ed
3 changed files with 27 additions and 24 deletions
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45
font-src/gen/finalize/glyphs.js
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@ -199,29 +199,32 @@ class FairizedShapeSink {
return c;
}
removeColinearKnots(c0) {
const c = c0.slice(0),
shouldRemove = [];
for (let i = 0; i < c.length; i++) {
const zPrev = c[(i - 1 + c.length) % c.length],
zCurr = c[i],
zNext = c[(i + 1) % c.length];
if (
zPrev.type === Point.Type.Corner &&
zCurr.type === Point.Type.Corner &&
zNext.type === Point.Type.Corner
) {
if (aligned(zPrev.x, zCurr.x, zNext.x) && between(zPrev.y, zCurr.y, zNext.y))
shouldRemove[i] = true;
if (aligned(zPrev.y, zCurr.y, zNext.y) && between(zPrev.x, zCurr.x, zNext.x))
shouldRemove[i] = true;
const c = c0.slice(0);
let lengthBefore = c.length,
lengthAfter = c.length;
do {
lengthBefore = c.length;
const shouldRemove = [];
for (let i = 0; i < c.length; i++) {
const zPrev = c[(i - 1 + c.length) % c.length],
zCurr = c[i],
zNext = c[(i + 1) % c.length];
if (zPrev.type === Point.Type.Corner && zNext.type === Point.Type.Corner) {
if (aligned(zPrev.x, zCurr.x, zNext.x) && between(zPrev.y, zCurr.y, zNext.y))
shouldRemove[i] = true;
if (aligned(zPrev.y, zCurr.y, zNext.y) && between(zPrev.x, zCurr.x, zNext.x))
shouldRemove[i] = true;
}
}
}
let n = 0;
for (let i = 0; i < c.length; i++) {
if (!shouldRemove[i]) c[n++] = c[i];
}
c.length = n;
lengthAfter = c.length;
} while (lengthAfter < lengthBefore);
const c2 = [];
for (let i = 0; i < c.length; i++) {
if (!shouldRemove[i]) c2.push(c[i]);
}
return c2;
return c;
}
}
function isOccurrent(zFirst, zLast) {