WebCAD/__test__/Polyline/offset.test.ts

import { Factory } from "../../src/DatabaseServices/CADFactory";
import { CADFile } from "../../src/DatabaseServices/CADFile";
import { Polyline } from "../../src/DatabaseServices/Polyline";
import { Curve } from "../../src/DatabaseServices/Curve";
import { Entity } from "../../src/DatabaseServices/Entity";
Factory(Polyline);

function loadFile(data)
{
    let file = new CADFile();
    file.Data = data;
    let cus: Curve[] = [];
    for (let i = 0; i < file.Data.length; i++)
    {
        cus.push(file.ReadObject(undefined) as Curve);
    }
    return cus;
}
// file.only
function EntityToMatchSnapshot(ens: Entity[])
{
    let f = new CADFile();
    f.Write(ens.length);

    for (let e of ens)
        f.WriteObject(e);

    expect(f.Data).toMatchSnapshot();
}

test('IKKGK圆与直线补圆弧', () =>
{
    let f = new CADFile();
    f.Data =
        [1, ["Polyline", 1, 1, 5, false, 7, -1, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, -47.808747539346534, 10.92028558763661, 0, 1], 2, 3, [-0.906131771640112, 6.969061295372345], 3.7897716494829594, [4.660056657223795, 6.487252124645892], 0, [18.466397865202012, 17.128892766521286], 0, false]]
    f.Read();
    let pl = f.ReadObject() as Polyline;

    //负1 左边. 禁止补圆弧
    let cus = pl.GetOffsetCurves(-1);

    EntityToMatchSnapshot(cus);

    pl.GetOffsetCurves(-5.654208780429431);
    //

    //翻转曲线后测试
    pl.Reverse();
    cus = pl.GetOffsetCurves(1);

    EntityToMatchSnapshot(cus);

    //圆丢失的问题
    cus = pl.GetOffsetCurves(-1.926388985025112);
    EntityToMatchSnapshot(cus);
});

test('多段线偏移测试1', () =>
{
    let data = [["Polyline", 1, 1, 3, false, 7, -1, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], 2, 4, [6.059716713881022, 3.983456090651555], 1.1217395195062214, [6.383002832861191, 4.064022662889515], 0, [4.929178470254959, 8.399433427762037], 1.2642365052895204, [5.750708215297452, 4.050991501416427], 0.7171789779484218, true]];

    let cus = loadFile(data);
    for (let i = 0; i < 10; i += 0.01)
    {
        expect(cus[0].GetOffsetCurves(i).length).toBe(1);
    }
    for (let i = -1.5; i < 0; i += 0.01)
    {
        expect(cus[0].GetOffsetCurves(i).length).toBe(1);
    }
    for (let i = 2; i < 10; i += 0.01)
    {
        expect(cus[0].GetOffsetCurves(-i).length).toBe(0);
    }
})
test('多段线偏移测试2', () =>
{
    let data = [["Polyline", 1, 1, 734, false, 7, -1, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], 2, 4, [8.176442643449754, 4.003694129881114], 0.6482011490054378, [8.554554536583165, 4.090460859042256], 0, [7.7292787370841225, 8.733182129315965], 0, [7.8227800907745895, 4.037582052934876], 1.223388515290821, true]];

    let cus = loadFile(data);
    expect(cus[0].GetOffsetCurves(-0.1799).length).toBe(2);

    for (let i = 0; i < 10; i += 1)
    {
        expect(cus[0].GetOffsetCurves(i).length).toBe(1);
    }
    for (let i = -0.17; i < 0; i += 0.01)
    {
        expect(cus[0].GetOffsetCurves(i).length).toBe(1);
    }
    for (let i = -0.18; i < -0.34; i -= 0.01)
    {
        expect(cus[0].GetOffsetCurves(i).length).toBe(1);
    }
    for (let i = 0.35; i < 3; i += 0.01)
    {
        expect(cus[0].GetOffsetCurves(-i).length).toBe(0);
    }
})
test('多段线偏移测试3', () =>
{
    let data = [["Polyline", 1, 1, 1172, false, 7, -1, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1], 2, 5, [12.52535684411379, 4.512623511896158], 0.39558516940595195, [13.121416971132648, 4.487590129452889], 0, [12.414545456418505, 8.796498405316765], 0, [12.015990240675425, 8.743859037199755], 0, [12.015990240675425, 4.4951100391838885], 0.8508932598252141, true]];

    let cus = loadFile(data);
    for (let i = 0; i < 10; i += 1)
    {
        expect(cus[0].GetOffsetCurves(i).length).toBe(1);
    }

})