package com.dji.sample.patches.utils;
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import com.dji.sample.patches.model.entity.LotInfo;
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import org.geotools.geometry.jts.JTSFactoryFinder;
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import org.locationtech.jts.geom.Coordinate;
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import org.locationtech.jts.geom.Envelope;
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import org.locationtech.jts.geom.Geometry;
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import org.locationtech.jts.io.ParseException;
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import org.locationtech.jts.io.WKTReader;
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import java.util.*;
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/**
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* @PROJECT_NAME: drone
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* @DESCRIPTION:
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* @USER: aix
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* @DATE: 2024/3/25 10:35
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*/
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public class GeoToolsUtil {
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/**
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* 获取中心点位置
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*
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* @param geometry Geometry
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* @return
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*/
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public static Coordinate getCentro(Geometry geometry) {
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return geometry.getCentroid().getCoordinate();
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}
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/**
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* 获取4个点的经纬度
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*
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* @param geometry Geometry
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* @return
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*/
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public static List<Coordinate> getExtremePoints(Geometry geometry) {
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List<Coordinate> extremePoints = new ArrayList<>();
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Envelope envelope = geometry.getEnvelopeInternal();
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// 获取4个点经纬度
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extremePoints.add(new Coordinate(envelope.getMinX(), envelope.getMaxY()));
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extremePoints.add(new Coordinate(envelope.getMinX(), envelope.getMinY()));
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extremePoints.add(new Coordinate(envelope.getMaxX(), envelope.getMinY()));
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extremePoints.add(new Coordinate(envelope.getMaxX(), envelope.getMaxY()));
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return extremePoints;
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}
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/**
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* 航线点排序
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*
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* @return
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*/
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public static Coordinate[] getRoutePointOrder(List<LotInfo> list, double airportLat, double airportLon) {
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List<Coordinate> centros = new ArrayList<>();
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List<List<Coordinate>> extremePoints = new ArrayList<>();
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Map<Coordinate, List<Coordinate>> points = new HashMap<>();
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list.forEach(patche -> {
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String wkt = patche.getDkfw();
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// 解析WKT字符串为多边形
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WKTReader wktReader = new WKTReader(JTSFactoryFinder.getGeometryFactory());
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Geometry polygon = null;
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try {
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polygon = wktReader.read(wkt);
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} catch (ParseException e) {
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throw new RuntimeException(e);
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}
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// 开始封装中心点坐标
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Coordinate coordinateCentro = getCentro(polygon);
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centros.add(coordinateCentro);
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// 开始封装图斑4个航线
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List<Coordinate> coordinatePointList = getExtremePoints(polygon);
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extremePoints.add(coordinatePointList);
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points.put(coordinateCentro, coordinatePointList);
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});
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// 开始排序
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Coordinate[] coordinates = new Coordinate[centros.size() + 1];
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List<Coordinate> coordinateList = new ArrayList<>();
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coordinates[0] = new Coordinate(airportLon, airportLat); //第一个为机场经纬度
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coordinateList.add(new Coordinate(airportLon, airportLat)); //第一个为机场经纬度)
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for (int i = 1; i < centros.size() + 1; i++) {
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coordinates[i] = centros.get(i - 1);
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coordinateList.add(centros.get(i - 1));
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}
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// 对中心坐标数组进行排序
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Coordinate[] retCoordinate = new Coordinate[coordinateList.size()];
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Coordinate[] sortedCoordinates = DistanceCalculator.sortByDistance(coordinateList, airportLat, airportLon, 0, retCoordinate);
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// 开始拼接图斑点位--按中心坐标数组排序顺序
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// 长度-3第一个起点只有一个点位
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Coordinate[] retc = new Coordinate[sortedCoordinates.length * 4 - 3];
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// 赋值起点
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retc[0] = sortedCoordinates[0];
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int i = 0;
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for (Coordinate num : sortedCoordinates) {
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List<Coordinate> coordinatePoints = points.get(num);
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if (null != coordinatePoints) {
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for (int j = 0; j < coordinatePoints.size(); j++) {
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// 开始拼接
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retc[i * coordinatePoints.size() + j - 3] = coordinatePoints.get(j);
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}
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}
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i++;
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}
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return retc;
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}
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}
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