| | |
| | | import com.se.nsl.helper.StringHelper; |
| | | import com.se.nsl.mapper.SimuMapper; |
| | | import com.se.nsl.utils.CoordinateTransformer; |
| | | import com.se.nsl.utils.SolverTifUtil; |
| | | import com.se.nsl.utils.TimeFormatUtil; |
| | | import lombok.extern.slf4j.Slf4j; |
| | | import org.gdal.gdal.Band; |
| | | import org.gdal.gdal.Dataset; |
| | | import org.gdal.gdal.gdal; |
| | | import org.gdal.gdalconst.gdalconstConstants; |
| | | import org.springframework.stereotype.Service; |
| | | import ucar.ma2.InvalidRangeException; |
| | | |
| | | import javax.annotation.Resource; |
| | | import java.io.File; |
| | | import java.io.IOException; |
| | | import java.time.Instant; |
| | | import java.time.LocalDateTime; |
| | | import java.time.ZoneId; |
| | | import java.time.format.DateTimeFormatter; |
| | | import java.nio.file.Path; |
| | | import java.nio.file.Paths; |
| | | import java.util.ArrayList; |
| | | import java.util.Arrays; |
| | | import java.util.List; |
| | | |
| | |
| | | @SuppressWarnings("ALL") |
| | | public class SimuService { |
| | | public static final String TIF_EXTSION = ".tif"; |
| | | public static final String YYYY_MM_DD_HH_MM_SS = "yyyyMMddHHmmss"; |
| | | @Resource |
| | | SimuMapper simuMapper; |
| | | |
| | |
| | | Page<Simu> page = new Page<>(pageNum, pageSize); |
| | | page.addOrder(OrderItem.desc("id")); |
| | | |
| | | IPage<Simu> paged = simuMapper.selectPage(page, wrapper); |
| | | |
| | | return paged; |
| | | return simuMapper.selectPage(page, wrapper); |
| | | } |
| | | |
| | | private QueryWrapper<Simu> getPageWrapper(SimuVo vo, int pageNum, int pageSize) { |
| | |
| | | |
| | | } |
| | | |
| | | public List<SimuResult> queryByPosition(double lon, double lat, String serviceName) { |
| | | //transform coordiante from 4326 to 4548 |
| | | double[] xy = CoordinateTransformer.transform(4326, config.getEpsg(), lon, lat); |
| | | // System.out.println(String.format("转换前的坐标:x:%s,y:%s", lon, lat)); |
| | | // System.out.println(String.format("转换后的坐标:x:%s,y:%s", xy[0], xy[1])); |
| | | //read from zarr |
| | | // return queryByZarr(xy, time, serviceName); |
| | | |
| | | //read from tif file |
| | | return queryByTif(xy, serviceName); |
| | | |
| | | } |
| | | |
| | | private SimuResult queryByZarr(double[] xy, long time, String serviceName) { |
| | | double x = xy[0]; |
| | | double y = xy[1]; |
| | |
| | | // index++; |
| | | // } |
| | | File dem = new File(inPath, serviceName + File.separator + "DEM.tif"); |
| | | ColumnRow cr = getColumnRow(dem.getAbsoluteFile(), x, y); |
| | | if (cr == null) return null; |
| | | //TODO |
| | | |
| | | File zarr = new File(inPath, serviceName + File.separator + "result.zarr"); |
| | | try { |
| | |
| | | } catch (IOException | InvalidRangeException e) { |
| | | throw new RuntimeException(e); |
| | | } |
| | | |
| | | |
| | | return null; |
| | | } |
| | | |
| | | private SimuResult queryByTif(double[] xy, long time, String serviceName) { |
| | | double x = xy[0]; |
| | | double y = xy[1]; |
| | | File inPath = new File(config.getInPath()); |
| | | String prefix = formatTime(time); |
| | | String child = serviceName + File.separator + "depth" + File.separator + prefix + TIF_EXTSION; |
| | |
| | | if (!tifFile.exists()) { |
| | | return null; |
| | | } |
| | | |
| | | ColumnRow cr = getColumnRow(tifFile, x, y); |
| | | if (cr == null) return null; |
| | | System.out.println("col:" + cr.col + " ,row:" + cr.row); |
| | | float depth = readPixelValue(cr.dataset, cr.col, cr.row, 1); |
| | | float velocity = calcVelocity(cr.dataset, cr.col, cr.row); |
| | | SimuResult result = new SimuResult(); |
| | | result.setDepth(depth); |
| | | result.setVelocity(velocity); |
| | | return result; |
| | | return SolverTifUtil.getSimuResult(tifFile, xy); |
| | | } |
| | | |
| | | private static ColumnRow getColumnRow(File tifFile, double x, double y) { |
| | | Dataset dataset = gdal.Open(tifFile.getAbsolutePath(), gdalconstConstants.GA_ReadOnly); |
| | | // 获取地理变换参数(6元素数组) |
| | | // [0]: 左上角X坐标, [1]: 像元宽度, [2]: X方向旋转, |
| | | // [3]: 左上角Y坐标, [4]: Y方向旋转, [5]: 像元高度(负值表示Y轴向下) |
| | | double[] geoTransform = dataset.GetGeoTransform(); |
| | | //计算栅格行列号 |
| | | int col = (int) ((x - geoTransform[0]) / geoTransform[1]); |
| | | int row = (int) ((geoTransform[3] - y) / Math.abs(geoTransform[5])); |
| | | int width = dataset.getRasterXSize(); |
| | | int height = dataset.getRasterYSize(); |
| | | if (col < 0 || col > width || row < 0 || row > height) { |
| | | log.warn("行列号不在tif范围内"); |
| | | return null; |
| | | private List<SimuResult> queryByTif(double[] xy, String serviceName) { |
| | | List<SimuResult> res = new ArrayList<>(); |
| | | File inPath = new File(config.getInPath()); |
| | | Path depthPath = Paths.get(inPath.getAbsolutePath(), serviceName, "depth"); |
| | | File depthDir = depthPath.toFile(); |
| | | File[] files = depthDir.listFiles(); |
| | | for (File tifFile : files) { |
| | | String name = tifFile.getName(); |
| | | if (!name.endsWith(TIF_EXTSION)) continue; |
| | | SimuResult result = SolverTifUtil.getSimuResult(tifFile, xy); |
| | | if (result == null) continue; |
| | | res.add(result); |
| | | } |
| | | return new ColumnRow(dataset, col, row); |
| | | } |
| | | |
| | | private static class ColumnRow { |
| | | public final Dataset dataset; |
| | | public final int col; |
| | | public final int row; |
| | | |
| | | public ColumnRow(Dataset dataset, int col, int row) { |
| | | this.dataset = dataset; |
| | | this.col = col; |
| | | this.row = row; |
| | | } |
| | | } |
| | | |
| | | private float calcVelocity(Dataset dataset, int col, int row) { |
| | | float x = readPixelValue(dataset, col, row, 2); |
| | | float y = readPixelValue(dataset, col, row, 3); |
| | | float velocity = 0f; |
| | | if (Float.isNaN(x) && Float.isNaN(y)) { |
| | | velocity = 0f; |
| | | } else if (Float.isNaN(x)) { |
| | | velocity = y; |
| | | } else if (Float.isNaN(y)) { |
| | | velocity = x; |
| | | } else { |
| | | velocity = (float) Math.sqrt(x * x + y * y); |
| | | } |
| | | return velocity; |
| | | } |
| | | |
| | | private float readPixelValue(Dataset dataset, int col, int row, int bandNum) { |
| | | Band band = dataset.GetRasterBand(bandNum); |
| | | float[] values = new float[1]; |
| | | band.ReadRaster(col, row, 1, 1, values); |
| | | return values[0]; |
| | | return res; |
| | | } |
| | | |
| | | private String formatTime(long time) { |
| | | Instant instant = Instant.ofEpochMilli(time); |
| | | LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, ZoneId.systemDefault()); |
| | | DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMddHHmmss"); |
| | | return localDateTime.format(formatter); |
| | | return TimeFormatUtil.formatTime(time, YYYY_MM_DD_HH_MM_SS); |
| | | } |
| | | |
| | | } |