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✨ Added Path.split() and the utility methods that support it

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Joost De Cock 2018-08-22 15:55:15 +02:00
parent 753c1e913f
commit a4647dfebb
4 changed files with 191 additions and 1 deletions
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56
tests/path.test.js
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@ -562,6 +562,62 @@ it("Should divide a path", () => {
expect(divided[3].ops[1].to.y).to.equal(60);
});
it("Should split a path on a curve", () => {
let pattern = new freesewing.Pattern();
pattern.parts.a = new pattern.Part();
let a = pattern.parts.a;
a.points.A = new a.Point(45, 60);
a.points.B = new a.Point(10, 30);
a.points.BCp2 = new a.Point(40, 20);
a.points.C = new a.Point(90, 30);
a.points.CCp1 = new a.Point(50, -30);
a.points.D = new a.Point(50, 130);
a.points.DCp1 = new a.Point(150, 30);
a.paths.test = new a.Path()
.move(a.points.A)
.line(a.points.B)
.curve(a.points.BCp2, a.points.CCp1, a.points.C)
.curve(a.points.DCp1, a.points.DCp1, a.points.D);
a.points.split = a.paths.test.shiftAlong(120);
let halves = a.paths.test.split(a.points.split);
let curve = halves[0].ops.pop();
expect(curve.type).to.equal("curve");
expect(curve.cp1.x).to.equal(35.2);
expect(curve.cp1.y).to.equal(21.6);
expect(curve.cp2.x).to.equal(46.29);
expect(curve.cp2.y).to.equal(-15.02);
expect(curve.to.x).to.equal(72.9);
expect(curve.to.y).to.equal(9.03);
});
it("Should split a path on a line", () => {
let pattern = new freesewing.Pattern();
pattern.parts.a = new pattern.Part();
let a = pattern.parts.a;
a.points.A = new a.Point(45, 60);
a.points.B = new a.Point(10, 30);
a.points.BCp2 = new a.Point(40, 20);
a.points.C = new a.Point(90, 30);
a.points.CCp1 = new a.Point(50, -30);
a.points.D = new a.Point(50, 130);
a.points.DCp1 = new a.Point(150, 30);
a.paths.test = new a.Path()
.move(a.points.A)
.line(a.points.B)
.curve(a.points.BCp2, a.points.CCp1, a.points.C)
.curve(a.points.DCp1, a.points.DCp1, a.points.D);
a.points.split = a.paths.test.shiftAlong(20);
let halves = a.paths.test.split(a.points.split);
let line = halves[0].ops.pop();
expect(line.type).to.equal("line");
expect(line.to.x).to.equal(29.81);
expect(line.to.y).to.equal(46.98);
});
function round(value) {
return Math.round(value * 1e2) / 1e2;
}