public-fuse/src/view/case/draw/board/editCAD/Geometry/Arrow.js

import VectorType from '../enum/VectorType.js'
import Geometry from './Geometry.js'
import SelectState from '../enum/SelectState.js'
import { mathUtil } from '../MathUtil.js'
import Constant from '../Constant.js'

export default class Arrow extends Geometry {
    constructor(startPoint, endPoint, vectorId, floor) {
        super()
        this.startPoint = startPoint
        this.endPoint = endPoint
        this.floor = floor?floor:0
        this.color = 'rgba(	0,0,0,1)';
        this.geoType = VectorType.Arrow
        this.setId(vectorId)
    }

    isContain(position){

        const dis1 = mathUtil.getDistance(position, this.startPoint)
        const dis2 = mathUtil.getDistance(position, this.endPoint)

        if(dis1 < Constant.minAdsorb){
            return SelectState.Start
        }

        if(dis2 < Constant.minAdsorb){
            return SelectState.End
        }

        let flag = mathUtil.isContainForSegment(position, this.startPoint, this.endPoint)
        if(flag){
            return SelectState.All
        }
        return null;
    }

    updatePoint(newPosition,dir){
        if(dir == SelectState.Start && mathUtil.getDistance(newPosition, this.endPoint)>Constant.minAdsorb){
            mathUtil.clonePoint(this.startPoint,newPosition)
        }
        else if(dir == SelectState.End && mathUtil.getDistance(newPosition, this.startPoint)>Constant.minAdsorb){
            mathUtil.clonePoint(this.endPoint,newPosition)
        }
    }

    setColor(color) {
        this.color = color
    }
}