WebCAD/__test__/Polyline/PointInPolyline.test.ts

import { Vector2, Vector3 } from 'three';

import { IsPointInPolyLine } from '../../src/DatabaseServices/PointInPolyline';
import { Polyline } from '../../src/DatabaseServices/Polyline';


test('点在多段线内', () =>
{

    let pl = new Polyline([
        {
            pt: new Vector2(0, 0),
            bul: 0
        },
        {
            pt: new Vector2(10, 0),
            bul: 0
        },
        {
            pt: new Vector2(10, 10),
            bul: 0
        },
        {
            pt: new Vector2(8, 10),
            bul: 0
        },
        {
            pt: new Vector2(8, 5),
            bul: 0
        },
        {
            pt: new Vector2(4, 5),
            bul: 0
        },
        {
            pt: new Vector2(4, 10),
            bul: 0
        },
        {
            pt: new Vector2(0, 10),
            bul: 0
        },
    ]);

    pl.CloseMark = true;

    let bIn = IsPointInPolyLine(pl, new Vector3(8, 3));//?

    expect(bIn).toBeTruthy();
});

describe("", () =>
{
    test('退化', () =>
    {
        let pl = new Polyline(
            [
                {
                    pt: new Vector2(0, 0),
                    bul: 0
                },
                {
                    pt: new Vector2(10, 0),
                    bul: 0
                },
                {
                    pt: new Vector2(5, 5),
                    bul: 0
                },
            ])

        pl.CloseMark = true;

        expect(IsPointInPolyLine(pl, new Vector3(5, 2))).toBeTruthy();
    });

    test('退化2', () =>
    {
        //右边中间 <
        let pl = new Polyline(
            [
                {
                    pt: new Vector2(0, 0),
                    bul: 0
                },
                {
                    pt: new Vector2(10, 0),
                    bul: 0
                },
                {
                    pt: new Vector2(5, 5),
                    bul: 0
                },
                {
                    pt: new Vector2(10, 10),
                    bul: 0
                },
                {
                    pt: new Vector2(0, 10),
                    bul: 0
                },
            ])

        pl.CloseMark = true;

        expect(IsPointInPolyLine(pl, new Vector3(5, 2))).toBeTruthy();
    });


    test('左边中间', () =>
    {
        //左边中间
        let pl = new Polyline([
            {
                pt: new Vector2(0, 0),
                bul: 0
            },
            {
                pt: new Vector2(10, 0),
                bul: 0
            },
            {
                pt: new Vector2(10, 10),
                bul: 0
            },
            {
                pt: new Vector2(0, 10),
                bul: 0
            },
            {
                pt: new Vector2(0, 8),
                bul: 0
            },

            {
                pt: new Vector2(5, 5),
                bul: 0
            }]
        )
        pl.CloseMark = true;

        expect(IsPointInPolyLine(pl, new Vector3(5, 2))).toBeTruthy();
    });
})