597 lines
18 KiB
JavaScript
597 lines
18 KiB
JavaScript
import chai from "chai"
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import {
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Pattern,
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Point,
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isCoord,
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capitalize,
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beamsIntersect,
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linesIntersect,
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pointOnBeam,
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pointOnLine,
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pointOnCurve,
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splitCurve,
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beamIntersectsX,
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beamIntersectsY,
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units,
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lineIntersectsCurve,
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curveIntersectsX,
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curveIntersectsY,
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curvesIntersect,
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circlesIntersect,
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beamIntersectsCircle,
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lineIntersectsCircle,
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curveEdge,
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stretchToScale,
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round,
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sampleStyle,
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deg2rad,
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rad2deg,
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pctBasedOn,
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Bezier,
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generatePartTransform,
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macroName,
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} from "./dist/index.mjs"
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const { expect } = chai
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describe('Utils', () => {
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it("Should return the correct macro name", () => {
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expect(macroName("test")).to.equal("_macro_test");
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});
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it("Should find the intersection of two endless line segments", () => {
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let a = new Point(10, 20);
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let b = new Point(20, 24);
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let c = new Point(90, 19);
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let d = new Point(19, 70);
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let X = beamsIntersect(a, b, c, d);
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expect(round(X.x)).to.equal(60.49);
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expect(round(X.y)).to.equal(40.2);
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});
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it("Should detect parallel lines", () => {
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let a = new Point(10, 20);
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let b = new Point(20, 20);
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let c = new Point(90, 40);
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let d = new Point(19, 40);
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expect(beamsIntersect(a, b, c, d)).to.equal(false);
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expect(linesIntersect(a, b, c, d)).to.equal(false);
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});
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it("Should detect vertical lines", () => {
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let a = new Point(10, 20);
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let b = new Point(10, 90);
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let c = new Point(90, 40);
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let d = new Point(19, 40);
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let X = beamsIntersect(a, b, c, d);
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expect(X.x).to.equal(10);
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expect(X.y).to.equal(40);
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X = beamsIntersect(c, d, a, b);
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expect(X.x).to.equal(10);
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});
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it("Should swap direction prior to finding beam intersection", () => {
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let a = new Point(10, 20);
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let b = new Point(0, 90);
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let c = new Point(90, 40);
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let d = new Point(19, 40);
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let X = beamsIntersect(a, b, c, d);
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expect(round(X.x)).to.equal(7.14);
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expect(round(X.y)).to.equal(40);
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});
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it("Should return false when two lines don't intersect", () => {
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let a = new Point(10, 20);
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let b = new Point(20, 24);
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let c = new Point(90, 19);
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let d = new Point(19, 70);
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expect(linesIntersect(a, b, c, d)).to.equal(false);
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});
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it("Should find the intersection of two line segments", () => {
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let a = new Point(10, 10);
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let b = new Point(90, 74);
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let c = new Point(90, 19);
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let d = new Point(11, 70);
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let X = linesIntersect(a, b, c, d);
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expect(round(X.x)).to.equal(51.95);
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expect(round(X.y)).to.equal(43.56);
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});
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it("Should find the intersection of an endles line and a give X-value", () => {
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let a = new Point(10, 10);
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let b = new Point(90, 74);
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let X = beamIntersectsX(a, b, 69);
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expect(X.x).to.equal(69);
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expect(X.y).to.equal(57.2);
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});
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it("Should find the intersection of an endles line and a give Y-value", () => {
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let a = new Point(10, 10);
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let b = new Point(90, 74);
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let X = beamIntersectsY(a, b, 69);
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expect(X.x).to.equal(83.75);
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expect(X.y).to.equal(69);
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});
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it("Should detect vertical lines never pass a give X-value", () => {
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let a = new Point(10, 10);
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let b = new Point(10, 90);
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expect(beamIntersectsX(a, b, 69)).to.equal(false);
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});
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it("Should detect horizontal lines never pass a give Y-value", () => {
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let a = new Point(10, 10);
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let b = new Point(90, 10);
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expect(beamIntersectsY(a, b, 69)).to.equal(false);
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});
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it("Should find no intersections between a curve and a line", () => {
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let A = new Point(10, 10);
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let Acp = new Point(310, 40);
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let B = new Point(110, 70);
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let Bcp = new Point(-210, 40);
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let E = new Point(-20, -20);
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let D = new Point(30, -85);
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let hit = lineIntersectsCurve(E, D, A, Acp, Bcp, B);
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expect(hit).to.equal(false);
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});
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it("Should find 1 intersection between a curve and a line", () => {
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let A = new Point(10, 10);
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let Acp = new Point(310, 40);
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let B = new Point(110, 70);
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let Bcp = new Point(-210, 40);
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let E = new Point(20, 20);
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let D = new Point(30, -85);
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let hit = lineIntersectsCurve(E, D, A, Acp, Bcp, B);
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expect(round(hit.x)).to.equal(20.85);
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expect(round(hit.y)).to.equal(11.11);
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});
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it("Should find 3 intersections between a curve and a line", () => {
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let A = new Point(10, 10);
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let Acp = new Point(310, 40);
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let B = new Point(110, 70);
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let Bcp = new Point(-210, 40);
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let E = new Point(20, -5);
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let D = new Point(100, 85);
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let hits = lineIntersectsCurve(E, D, A, Acp, Bcp, B);
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expect(hits.length).to.equal(3);
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});
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it("Should find 9 intersections between two curves", () => {
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let A = new Point(10, 10);
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let Acp = new Point(310, 40);
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let B = new Point(110, 70);
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let Bcp = new Point(-210, 40);
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let C = new Point(20, -5);
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let Ccp = new Point(60, 300);
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let D = new Point(100, 85);
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let Dcp = new Point(70, -220);
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let hits = curvesIntersect(A, Acp, Bcp, B, C, Ccp, Dcp, D);
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expect(hits.length).to.equal(9);
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});
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it("Should find 1 intersection between two curves", () => {
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let A = new Point(10, 10);
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let Acp = new Point(310, 40);
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let B = new Point(110, 70);
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let Bcp = new Point(-210, 40);
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let C = new Point(20, -5);
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let Ccp = new Point(-60, 300);
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let D = new Point(-200, 85);
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let Dcp = new Point(-270, -220);
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let hit = curvesIntersect(A, Acp, Bcp, B, C, Ccp, Dcp, D);
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expect(round(hit.x)).to.equal(15.58);
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expect(round(hit.y)).to.equal(10.56);
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});
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it("Should find no intersection between two curves", () => {
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let A = new Point(10, 10);
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let Acp = new Point(310, 40);
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let B = new Point(110, 70);
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let Bcp = new Point(-210, 40);
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let C = new Point(20, -5);
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let Ccp = new Point(-60, -300);
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let D = new Point(-200, 85);
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let Dcp = new Point(-270, -220);
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let hit = curvesIntersect(A, Acp, Bcp, B, C, Ccp, Dcp, D);
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expect(hit).to.equal(false);
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});
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it("Should correctly format units", () => {
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expect(units(123.456)).to.equal("12.35cm");
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expect(units(123.456, "imperial")).to.equal('4.86"');
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});
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it("Should find a start or end point on beam", () => {
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let A = new Point(12, 34);
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let B = new Point(56, 78);
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let checkA = new Point(12, 34);
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let checkB = new Point(56, 78);
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expect(pointOnBeam(A, B, checkA)).to.equal(true);
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expect(pointOnBeam(A, B, checkB)).to.equal(true);
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});
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it("Should find whether a point lies on a line segment", () => {
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let A = new Point(12, 34);
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let B = new Point(56, 78);
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let check1 = A.shiftTowards(B, 10);
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let check2 = A.shiftTowards(B, 210);
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expect(pointOnLine(A, B, check1)).to.equal(true);
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expect(pointOnLine(A, B, check2)).to.equal(false);
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});
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it("Should find a start or end point on curve", () => {
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let A = new Point(12, 34);
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let Acp = new Point(123, 4);
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let B = new Point(56, 78);
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let Bcp = new Point(5, 678);
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let checkA = new Point(12, 34);
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let checkB = new Point(56, 78);
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expect(pointOnCurve(A, Acp, Bcp, B, checkA)).to.equal(true);
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expect(pointOnCurve(A, Acp, Bcp, B, checkB)).to.equal(true);
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});
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it("Should find the intersections of a beam and circle", () => {
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let A = new Point(45, 45).attr("data-circle", 35);
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let B = new Point(5, 50);
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let C = new Point(25, 30);
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let intersections = beamIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C,
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"y"
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);
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expect(intersections.length).to.equal(2);
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expect(round(intersections[0].x)).to.equal(45);
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expect(round(intersections[0].y)).to.equal(10);
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expect(round(intersections[1].x)).to.equal(10);
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expect(round(intersections[1].y)).to.equal(45);
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});
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it("Should not find the intersections of this beam and circle", () => {
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let A = new Point(75, 75).attr("data-circle", 35);
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let B = new Point(5, 5);
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let C = new Point(10, 5);
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let intersections = beamIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections).to.equal(false);
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});
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it("Should find one intersections between this beam and circle", () => {
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let A = new Point(5, 5).attr("data-circle", 5);
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let B = new Point(0, 0);
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let C = new Point(-10, 0);
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let intersections = beamIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections.length).to.equal(1);
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expect(intersections[0].x).to.equal(5);
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expect(intersections[0].y).to.equal(0);
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});
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it("Should find one intersections between this tangent and circle", () => {
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let A = new Point(5, 5).attr("data-circle", 5);
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let B = new Point(0, 0);
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let C = new Point(10, 0);
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let intersections = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections.length).to.equal(1);
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expect(intersections[0].x).to.equal(5);
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expect(intersections[0].y).to.equal(0);
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});
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it("Should find one intersection between this line and circle", () => {
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let A = new Point(5, 5).attr("data-circle", 5);
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let B = new Point(5, 5);
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let C = new Point(26, 25);
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let intersections = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections.length).to.equal(1);
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expect(round(intersections[0].x)).to.equal(8.62);
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expect(round(intersections[0].y)).to.equal(8.45);
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});
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it("Should not find an intersections between this line and circle", () => {
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let A = new Point(5, 5).attr("data-circle", 5);
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let B = new Point(0, 0);
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let C = new Point(-10, 0);
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let intersections = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections).to.equal(false);
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});
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it("Should find two intersections between this line and circle", () => {
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let A = new Point(6, 7).attr("data-circle", 5);
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let B = new Point(0, 10);
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let C = new Point(10, 0);
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let intersections1 = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C,
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"foo"
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);
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let intersections2 = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C,
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"x"
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);
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let intersections3 = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C,
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"y"
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);
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expect(intersections1.length).to.equal(2);
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expect(intersections2.length).to.equal(2);
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expect(intersections3.length).to.equal(2);
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expect(intersections1[0].sitsOn(intersections2[1])).to.equal(true);
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expect(intersections1[1].sitsOn(intersections2[0])).to.equal(true);
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expect(intersections1[0].sitsOn(intersections3[0])).to.equal(true);
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expect(intersections1[1].sitsOn(intersections3[1])).to.equal(true);
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expect(round(intersections1[0].x)).to.equal(7.7);
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expect(round(intersections1[0].y)).to.equal(2.3);
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expect(round(intersections1[1].x)).to.equal(1.3);
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expect(round(intersections1[1].y)).to.equal(8.7);
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});
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it("Should find the intersections of a line and circle", () => {
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let A = new Point(45, 45).attr("data-circle", 35);
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let B = new Point(5, 50);
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let C = new Point(25, 30);
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let intersections = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections.length).to.equal(1);
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expect(round(intersections[0].x)).to.equal(10);
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expect(round(intersections[0].y)).to.equal(45);
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});
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it("Should not find intersections of this line and circle", () => {
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let A = new Point(75, 75).attr("data-circle", 35);
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let B = new Point(5, 5);
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let C = new Point(10, 5);
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let intersections = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections).to.equal(false);
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});
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it("Should not find intersections of this line and circle", () => {
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let A = new Point(45, 45).attr("data-circle", 35);
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let B = new Point(40, 40);
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let C = new Point(52, 50);
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let intersections = lineIntersectsCircle(
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A,
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A.attributes.get("data-circle"),
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B,
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C
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);
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expect(intersections).to.equal(false);
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});
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it("Should find intersections between circles", () => {
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let A = new Point(10, 10).attr("data-circle", 15);
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let B = new Point(30, 30).attr("data-circle", 35);
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let intersections1 = circlesIntersect(
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A,
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A.attributes.get("data-circle"),
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B,
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B.attributes.get("data-circle")
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);
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let intersections2 = circlesIntersect(
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A,
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A.attributes.get("data-circle"),
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B,
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B.attributes.get("data-circle"),
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"y"
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);
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expect(intersections1.length).to.equal(2);
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expect(intersections2.length).to.equal(2);
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expect(round(intersections1[0].x)).to.equal(-2.81);
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expect(round(intersections1[0].y)).to.equal(17.81);
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expect(round(intersections1[1].x)).to.equal(17.81);
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expect(round(intersections1[1].y)).to.equal(-2.81);
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expect(round(intersections2[0].x)).to.equal(17.81);
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expect(round(intersections2[0].y)).to.equal(-2.81);
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expect(round(intersections2[1].x)).to.equal(-2.81);
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expect(round(intersections2[1].y)).to.equal(17.81);
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});
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it("Should not find intersections between non-overlapping circles", () => {
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let A = new Point(10, 10).attr("data-circle", 15);
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let B = new Point(90, 90).attr("data-circle", 35);
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let intersections = circlesIntersect(
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A,
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A.attributes.get("data-circle"),
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B,
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B.attributes.get("data-circle")
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);
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expect(intersections).to.equal(false);
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});
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it("Should not find intersections between contained circles", () => {
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let A = new Point(10, 10).attr("data-circle", 15);
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let B = new Point(10, 10).attr("data-circle", 35);
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let intersections = circlesIntersect(
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A,
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A.attributes.get("data-circle"),
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B,
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B.attributes.get("data-circle")
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);
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expect(intersections).to.equal(false);
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});
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it("Should not find intersections between identical circles", () => {
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let A = new Point(10, 10).attr("data-circle", 35);
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let B = new Point(10, 10).attr("data-circle", 35);
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let intersections = circlesIntersect(
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A,
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A.attributes.get("data-circle"),
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B,
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B.attributes.get("data-circle")
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);
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expect(intersections).to.equal(false);
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});
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it("Should return scale for a given amount of stretch", () => {
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expect(stretchToScale(0)).to.equal(1);
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expect(stretchToScale(0.25)).to.equal(0.8);
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});
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it("Should capitalize a string", () => {
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expect(capitalize("test")).to.equal("Test");
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expect(capitalize("Freesewing")).to.equal("Freesewing");
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});
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it("Should split a curve", () => {
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let a = new Point(0, 0);
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let b = new Point(50, 0);
|
|
let c = new Point(50, 100);
|
|
let d = new Point(100, 100);
|
|
let X = new Point(50, 50);
|
|
let [c1, c2] = splitCurve(a, b, c, d, X);
|
|
expect(round(c1.cp1.x)).to.equal(25);
|
|
expect(round(c1.cp1.y)).to.equal(0);
|
|
expect(round(c1.cp2.x)).to.equal(37.5);
|
|
expect(round(c1.cp2.y)).to.equal(25);
|
|
expect(round(c2.cp1.x)).to.equal(62.5);
|
|
expect(round(c2.cp1.y)).to.equal(75);
|
|
expect(round(c2.cp2.x)).to.equal(75);
|
|
expect(round(c2.cp2.y)).to.equal(100);
|
|
});
|
|
|
|
it("Should find where a curve intersects a given X-value", () => {
|
|
let a = new Point(0, 0);
|
|
let b = new Point(50, 0);
|
|
let c = new Point(50, 100);
|
|
let d = new Point(100, 100);
|
|
let i = curveIntersectsX(a, b, c, d, 30);
|
|
expect(round(i.x)).to.equal(30);
|
|
expect(round(i.y)).to.equal(16);
|
|
});
|
|
|
|
it("Should find where a curve intersects a given Y-value", () => {
|
|
let a = new Point(0, 0);
|
|
let b = new Point(50, 0);
|
|
let c = new Point(50, 100);
|
|
let d = new Point(100, 100);
|
|
let i = curveIntersectsY(a, b, c, d, 30);
|
|
expect(round(i.x)).to.equal(39.49);
|
|
expect(round(i.y)).to.equal(30);
|
|
});
|
|
|
|
// Recreate issue #1206
|
|
it("Should find intersecting beams when a line is almost vertical", () => {
|
|
let a = new Point(225.72, 241);
|
|
let b = new Point(225.71999999999997, 600);
|
|
let i = beamIntersectsY(a, b, 400);
|
|
expect(round(i.y)).to.equal(400);
|
|
});
|
|
|
|
it("Should check for valid coordinate", () => {
|
|
expect(isCoord(23423.23)).to.equal(true);
|
|
expect(isCoord(0)).to.equal(true);
|
|
expect(isCoord()).to.equal(false);
|
|
expect(isCoord(null)).to.equal(false);
|
|
expect(isCoord('hi')).to.equal(false);
|
|
expect(isCoord(NaN)).to.equal(false);
|
|
});
|
|
|
|
it("Should return the correct sample style", () => {
|
|
expect(sampleStyle(0, 5)).to.equal("stroke: hsl(-66, 100%, 35%);")
|
|
expect(sampleStyle(1, 5)).to.equal("stroke: hsl(0, 100%, 35%);")
|
|
expect(sampleStyle(2, 5)).to.equal("stroke: hsl(66, 100%, 35%);")
|
|
expect(sampleStyle(3, 5)).to.equal("stroke: hsl(132, 100%, 35%);")
|
|
expect(sampleStyle(4, 5)).to.equal("stroke: hsl(198, 100%, 35%);")
|
|
});
|
|
|
|
it("Should return the correct sample styles", () => {
|
|
const styles = [
|
|
"stroke: red;",
|
|
"stroke: blue;",
|
|
"stroke: green;",
|
|
"stroke: pink;",
|
|
"stroke: orange;",
|
|
]
|
|
for (let i=0;i<5;i++) expect(sampleStyle(i, 5, styles)).to.equal(styles[i])
|
|
});
|
|
|
|
it("Should convert degrees to radians", () => {
|
|
expect(deg2rad(0)).to.equal(0);
|
|
expect(round(deg2rad(69))).to.equal(1.2);
|
|
});
|
|
|
|
it("Should convert radians to degrees", () => {
|
|
expect(rad2deg(0)).to.equal(0);
|
|
expect(round(rad2deg(69))).to.equal(3953.41);
|
|
});
|
|
|
|
it("Should shoulder return two methods for pctBasedOn", () => {
|
|
const result = pctBasedOn('chest')
|
|
expect(typeof result.toAbs).to.equal("function");
|
|
expect(typeof result.fromAbs).to.equal("function");
|
|
const measurements = { chest: 1000 }
|
|
expect(result.toAbs(0.0123, { measurements })).to.equal(12.3)
|
|
expect(result.fromAbs(12.3, { measurements })).to.equal(0.0123)
|
|
});
|
|
|
|
it("Should generate a part transform", () => {
|
|
let pattern = new Pattern();
|
|
pattern.settings.mode = "draft";
|
|
let part = new pattern.Part();
|
|
let short = part.shorthand();
|
|
part.points.from = new short.Point(2, 2);
|
|
part.points.to = new short.Point(19, 76);
|
|
part.paths.test = new short.Path()
|
|
.move(part.points.from)
|
|
.line(part.points.to);
|
|
part.stack();
|
|
const transform = generatePartTransform(30,60,90,true,true,part)
|
|
expect(transform.transform).to.equal(`translate(${30 + part.topLeft.x + part.bottomRight.x} ${60 + part.topLeft.y + part.bottomRight.y}) scale(-1 -1) rotate(90 ${part.topLeft.x + part.width/2} ${part.topLeft.y + part.height/2})`);
|
|
});
|
|
});
|
|
|
|
|