csv to shp csv2shp from gps

네비게이션의 gps 좌표를 선으로 이은 shp 파일 만들기

gps 좌표를 가지고 있는 csv 파일을 불러와서

좌표를 이용하여 shp 파일과 shx 파일을 생성한다

import com.vividsolutions.jts.geom.Coordinate; import com.vividsolutions.jts.geom.GeometryFactory; import com.vividsolutions.jts.geom.LineString; import com.vividsolutions.jts.geom.MultiLineString; import org.geotools.data.shapefile.shp.ShapeType; import org.geotools.data.shapefile.shp.ShapefileWriter; import org.junit.After; import org.junit.Before; import org.junit.Test; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Scanner; /** * shp & shx file write from gps coordinates. * * @author Haneul, Kim */ public class ShpWriterTest { private ShapefileWriter writer; @Before public void setUp() throws IOException { File shpFile = new File("/Users/hskimsky/Downloads/shp/GPRMC.shp"); File shxFile = new File("/Users/hskimsky/Downloads/shp/GPRMC.shx"); FileOutputStream shpFOS = new FileOutputStream(shpFile); FileOutputStream shxFOS = new FileOutputStream(shxFile); this.writer = new ShapefileWriter(shpFOS.getChannel(), shxFOS.getChannel()); } @After public void close() throws IOException { this.writer.close(); } @Test public void shpWrite() throws IOException { Scanner scanner = new Scanner(new File("/Users/hskimsky/Downloads/my_gps_GPRMC.txt")); List<Coordinate> coords = new ArrayList<>(); while (scanner.hasNextLine()) { String line = scanner.nextLine(); String[] values = line.split(","); double[] xy = {Double.parseDouble(values[1]), Double.parseDouble(values[2])}; coords.add(new Coordinate(xy[0], xy[1])); } GeometryFactory gf = new GeometryFactory(); LineString lineString = gf.createLineString(coords.toArray(new Coordinate[coords.size()])); MultiLineString mls = gf.createMultiLineString(new LineString[]{lineString}); System.out.println("mls = " + mls); this.writer.writeHeaders(mls.getEnvelopeInternal(), ShapeType.ARC, mls.getNumGeometries(), 100); this.writer.writeGeometry(mls); } }