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finished molding

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Pomax
2020-09-01 15:54:50 -07:00
parent fbec463127
commit fc13f64451
84 changed files with 789 additions and 795 deletions
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39
docs/js/custom-element/lib/bezierjs/bezier.js
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@@ -16,25 +16,6 @@ const pi = Math.PI;
// a zero coordinate, which is surprisingly useful
const ZERO = { x: 0, y: 0, z: 0 };
// TODO: figure out where this function goes, it has no reason to exist on its lonesome.
function getABC(n, S, B, E, t) {
if (typeof t === "undefined") {
t = 0.5;
}
const u = utils.projectionratio(t, n),
um = 1 - u,
C = {
x: u * S.x + um * E.x,
y: u * S.y + um * E.y,
},
s = utils.abcratio(t, n),
A = {
x: B.x + (B.x - C.x) / s,
y: B.y + (B.y - C.y) / s,
};
return { A, B, C };
}
/**
* Bezier curve constructor.
*
@@ -128,7 +109,7 @@ class Bezier {
return new Bezier(p1, p2, p2);
}
// real fitting.
const abc = getABC(2, p1, p2, p3, t);
const abc = Bezier.getABC(2, p1, p2, p3, t);
return new Bezier(p1, abc.A, p3);
}
@@ -136,7 +117,7 @@ class Bezier {
if (typeof t === "undefined") {
t = 0.5;
}
const abc = getABC(3, S, B, E, t);
const abc = Bezier.getABC(3, S, B, E, t);
if (typeof d1 === "undefined") {
d1 = utils.dist(B, abc.C);
}
@@ -239,10 +220,18 @@ class Bezier {
}
static getABC(order = 2, S, B, E, t = 0.5) {
let ret = getABC(order, S, B, E, t);
ret.S = S;
ret.E = E;
return ret;
const u = utils.projectionratio(t, order),
um = 1 - u,
C = {
x: u * S.x + um * E.x,
y: u * S.y + um * E.y,
},
s = utils.abcratio(t, order),
A = {
x: B.x + (B.x - C.x) / s,
y: B.y + (B.y - C.y) / s,
};
return { A, B, C, S, E };
}
getABC(t, B) {