WebCAD/__test__/Polyline/split.test.ts

import { Polyline } from "../../src/DatabaseServices/Entity/Polyline";
import { Vector2 } from "three";


//构造测试的多段线
function createTestPolyline(): Polyline
{
    return new Polyline([
        {
            pt: new Vector2(0, 0),
            bul: 0
        },
        {
            pt: new Vector2(5, 0),
            bul: 1
        },
        {
            pt: new Vector2(5, 5),
            bul: -1
        },
        {
            pt: new Vector2(5, 10),
            bul: 0
        },
        {
            pt: new Vector2(0, 10),
            bul: 0
        },
        {
            pt: new Vector2(0, 0),
            bul: 0
        }
    ]);
}

//切割测试
{
    let pl = createTestPolyline();

    test('多切刀', () =>
    {
        //不闭合标志
        pl.CloseMark = false;

        //不包括0
        let cus = pl.GetSplitCurves([1.5, 2.5, 2.8, 2.8, 1.2, 2, 1.8, 1, 2.2]);//

        for (let cu of cus)
        {
            expect(cu.LineData).toMatchSnapshot();
        }

        //包括0
        let cus2 = pl.GetSplitCurves([1.5, 2.5, 2.8, 2.8, 1.2, 2, 1.8, 1, 2.2, 0]);//

        for (let cu of cus)
        {
            expect(cu.LineData).toMatchSnapshot();
        }
    });

    test('多切刀闭合', () =>
    {

        //闭合标志
        pl.CloseMark = true;

        //不包括0
        let cus = pl.GetSplitCurves([1.5, 2.5, 2.8, 2.8, 1.2, 2, 1.8, 1, 2.2]);//

        for (let cu of cus)
        {
            expect(cu.LineData).toMatchSnapshot();
        }

        //包括0
        let cus2 = pl.GetSplitCurves([1.5, 2.5, 2.8, 2.8, 1.2, 2, 1.8, 1, 2.2, 0]);//

        for (let cu of cus)
        {
            expect(cu.LineData).toMatchSnapshot();
        }
    });

    /*
    test('单刀', () =>
    {
        for (let p of [0, 1.5, 2, 2.5, 3])
        {
            let cus = pl.GetSplitCurves(p);
            for (let cu of cus)
            {
                //该测试用于数值精度的问题经常造成测试失败.请刷新测试.
                expect(cu.LineData).toMatchSnapshot();
            }
        }
    });
    */
    test('单刀闭合', () =>
    {
        pl.CloseMark = true;
        for (let p of [0, 1.5, 2, 2.5, 3])
        {
            let cus = pl.GetSplitCurves(p);
            for (let cu of cus)
            {
                expect(cu.LineData).toMatchSnapshot();
            }
        }
    });
}

test('切割点在尾部', () =>
{
    let pl = new Polyline();
    pl.Rectangle(100, 100);
    let cus = pl.GetSplitCurves([1, 4]);
    expect(cus.length).toBe(2);

    cus = pl.GetSplitCurves([2, 3]);
    expect(cus.length).toBe(2);
});