package com.ard.work.service.impl;
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import com.ard.work.config.GeoserverConfig;
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import com.ard.work.domain.dto.wayline.ArdPositionDTO;
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import com.ard.work.service.IGeoToolsService;
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import com.ard.work.util.GeoTools;
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import com.ard.work.util.Vertex;
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import lombok.extern.slf4j.Slf4j;
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import org.locationtech.jts.geom.*;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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@Service
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@Slf4j
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public class GeoToolsServiceImpl implements IGeoToolsService {
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@Autowired
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private GeoserverConfig geoserverConfig;
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private static Double distance = 1500 * 180 / Math.PI / 6371000;
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private static GeometryFactory geoFactory = new GeometryFactory();
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//坐标类型转换
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public Vertex gcj02ToTargetCoordinate(Vertex gcjVertex){
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Vertex newVertex = new Vertex(0,0);
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if(geoserverConfig.getDeviceCoordinateType().equals("WGS84")){
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newVertex = GeoTools.GCJ02toWGS84(new Vertex(gcjVertex.x, gcjVertex.y));
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}else {
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newVertex = new Vertex(gcjVertex.x, gcjVertex.y);
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}
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return newVertex;
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}
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public Vertex targetCoordinateToGcj02(Vertex targetVertex){
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Vertex newVertex = new Vertex(0,0);
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if(geoserverConfig.getDeviceCoordinateType().equals("WGS84")){
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newVertex = GeoTools.WGS84toGCJ02(new Vertex(targetVertex.x, targetVertex.y));
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}else {
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newVertex = new Vertex(targetVertex.x, targetVertex.y);
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}
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return newVertex;
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}
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public List<ArdPositionDTO> calConvexHull(List<ArdPositionDTO> polygonPoints){
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//缓冲距离
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List<ArdPositionDTO> convexHullPoints = new ArrayList<>();
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try{
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//用户定义区域
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Integer pCount = polygonPoints.size();
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//首位最后一个点
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Coordinate[] uPoints = new Coordinate[pCount+1];
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int i = 0;
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for(i=0;i<pCount;i++){
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uPoints[i] = new Coordinate(polygonPoints.get(i).getLongitude(),polygonPoints.get(i).getLatitude());
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}
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//将第一个点重新加入到最后，形成闭环
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uPoints[i] = new Coordinate(polygonPoints.get(0).getLongitude(),polygonPoints.get(0).getLatitude());
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//多边形点的个数必须大于等于3
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if(uPoints.length >= 3){
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//生成集合要素
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Geometry oneGeometry = geoFactory.createPolygon(uPoints);
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//做凸包
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Geometry geoConvexHull = oneGeometry.convexHull();
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Coordinate[] points = geoConvexHull.getCoordinates();
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for (Coordinate coordinate : points) {
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convexHullPoints.add(ArdPositionDTO.builder().longitude(coordinate.getX())
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.latitude(coordinate.getY()).build());
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}
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}
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}catch (Exception e){
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e.printStackTrace();
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}
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return convexHullPoints;
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}
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private double meterToDegree(double threshold){
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return threshold * 180 / Math.PI / 6371000;
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}
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public void deleteFile(File filePath) {
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//判断路径是否存在
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if(filePath.exists()) {
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//判断是否是目录
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if (filePath.isDirectory()) {
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//将目录逐层拆分成数组元素
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File[] files = filePath.listFiles();
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for (File f : files) {
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//递归调用,由最底层往上逐层删除
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deleteFile(f);
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}
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}
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//如果是文件，直接删除
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filePath.delete();
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}
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}
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public void zipShapeFile(String shpPath){
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try{
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File shpFile = new File(shpPath);
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String shpRoot = shpFile.getParentFile().getPath(),
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_shpName = shpFile.getName(),
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shpName = _shpName.substring(0, _shpName.lastIndexOf("."));
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String zipPath = shpRoot+File.separator+shpName+".zip";
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File zipFile = new File(zipPath);
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InputStream input = null;
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ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
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// zip的名称为
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zipOut.setComment(shpName);
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String[] shpFiles = new String[]{
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shpRoot+File.separator+shpName+".dbf",
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shpRoot+File.separator+shpName+".prj",
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shpRoot+File.separator+shpName+".shp",
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shpRoot+File.separator+shpName+".shx",
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};
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for(int i=0;i<shpFiles.length;i++){
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File _file = new File(shpFiles[i]);
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input = new FileInputStream(_file);
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zipOut.putNextEntry(new ZipEntry(_file.getName()));
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int temp = 0;
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while ((temp = input.read()) != -1) {
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zipOut.write(temp);
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}
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input.close();
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}
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zipOut.close();
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}catch (Exception e){
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e.printStackTrace();
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}
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}
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}
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