package commons.gis

import org.locationtech.jts.geom.Point
import org.locationtech.jts.geom.Polygon


/**点面关系判断*/
object PointInPolygonChecker {

    //老点
//    private var oldPointX = 0.0
//    private var oldPointY = 0.0
    private var oldPoint: Point? = null
//    private var oldPointY = 0.0

    //生成的矩形
//    private var pRectangle: Polygon? = null

    /***点是否在多边形内:*/
    fun isPointInPolygon(point: Point, polygon: Polygon): Boolean {
        return polygon.contains(point)
    }

    /***点是否在多边形内:*/
    fun isPointInPolygon(lng: Double, lat: Double, polygon: Polygon): Boolean {
        // 创建点
        val point = MGeoTools.createPoint(lng, lat)
        return polygon.contains(point)
    }


    /**
     * 判断点是否在多边形内
     * @param cLat 当前经纬度
     * @param cLng
     * @param pointX 待判断点经度
     * @param pointY 待判断点纬度
     */
    /* fun isPointInPolygonRectCenter(
         cLng: Double,
         cLat: Double,
         pointX: Double,
         pointY: Double,
         head: Double = 0.0
     ): Boolean {
         val point = MGeoTools.createPoint(cLng, cLat)
 *//*        if (oldPoint != null) {
//            变化的2点距离
            var pdis =
                BasicTools.calculateHaversineDistance(pointX, pointY, oldPoint!!.x, oldPoint!!.y)
            println("-------中心点的变化距离 pdis = ${pdis}")
            if (pdis < 40) {
                return true
            }
        }
        oldPoint = point*//*

        //以自己为中心点生成矩形
        var pRectangle = MGeoTools.createRectangleCenter(cLng, cLat, head, 50.0, 50.0)

        return pRectangle.contains(point)
    }*/

}