| | |
| | | package com.moon.server.service.data; |
| | | |
| | | import com.moon.server.entity.all.StaticData; |
| | | import com.moon.server.entity.data.AnalysisResultEntity; |
| | | import com.moon.server.entity.data.MetaEntity; |
| | | import com.moon.server.entity.data.PublishEntity; |
| | | import com.moon.server.helper.PathHelper; |
| | | import org.apache.commons.logging.Log; |
| | | import org.apache.commons.logging.LogFactory; |
| | | import org.gdal.gdal.Band; |
| | | import org.gdal.gdal.Dataset; |
| | | import org.gdal.gdal.WarpOptions; |
| | |
| | | import org.gdal.ogr.ogr; |
| | | import org.springframework.stereotype.Service; |
| | | |
| | | import javax.annotation.Resource; |
| | | import java.io.File; |
| | | import java.util.ArrayList; |
| | | import java.util.List; |
| | | import java.util.Vector; |
| | |
| | | */ |
| | | @Service |
| | | public class RasterAnalysisService { |
| | | public List<AnalysisResultEntity> analysisPoint(String wkt, Integer pixel) { |
| | | @Resource |
| | | PathHelper pathHelper; |
| | | |
| | | @Resource |
| | | PublishService publishService; |
| | | |
| | | private final static Log log = LogFactory.getLog(RasterAnalysisService.class); |
| | | |
| | | /** |
| | | * 分析点 |
| | | */ |
| | | public List<AnalysisResultEntity> analysisPoint(Geometry point, int size) { |
| | | List<AnalysisResultEntity> rs = new ArrayList<>(); |
| | | // |
| | | |
| | | return rs; |
| | | } |
| | | |
| | | public List<AnalysisResultEntity> analysisPolyline(String wkt) { |
| | | List<AnalysisResultEntity> rs = new ArrayList<>(); |
| | | // |
| | | |
| | | return rs; |
| | | } |
| | | public List<AnalysisResultEntity> analysisPolygon(String wkt) { |
| | | List<AnalysisResultEntity> rs = new ArrayList<>(); |
| | | // |
| | | |
| | | return rs; |
| | | } |
| | | |
| | | |
| | | public double processPoint(String imagePath, String geometryString, int size) { |
| | | // 打开栅格图像数据集 |
| | | Dataset dataset = gdal.Open(imagePath); |
| | | if (dataset == null) { |
| | | throw new RuntimeException("Failed to open raster dataset."); |
| | | List<PublishEntity> pubs = publishService.selectRaster(); |
| | | if (null == pubs || pubs.isEmpty()) { |
| | | return rs; |
| | | } |
| | | |
| | | Geometry geometry = Geometry.CreateFromWkt(geometryString); |
| | | for (PublishEntity pub : pubs) { |
| | | AnalysisResultEntity entity = new AnalysisResultEntity(); |
| | | entity.setLayerName(pub.getName()); |
| | | |
| | | double[] geoTransform = dataset.GetGeoTransform(); |
| | | double minX = geoTransform[0]; |
| | | double pixelWidth = geoTransform[1]; |
| | | double rotationX = geoTransform[2]; |
| | | double maxY = geoTransform[3]; |
| | | double rotationY = geoTransform[4]; |
| | | double pixelHeight = geoTransform[5]; |
| | | |
| | | double x = geometry.GetX(); |
| | | double y = geometry.GetY(); |
| | | |
| | | int xPixel = (int) Math.floor((x - minX) / pixelWidth); |
| | | int yPixel = (int) Math.floor((maxY - y) / Math.abs(pixelHeight)); |
| | | |
| | | int bandCount = dataset.getRasterCount(); |
| | | |
| | | List<double[]> sum = new ArrayList<>(); |
| | | for (int bandIndex = 1; bandIndex <= bandCount; bandIndex++) { |
| | | double[] pixelValues = new double[size * size]; |
| | | Band band = dataset.GetRasterBand(bandIndex); |
| | | band.ReadRaster(xPixel, yPixel, size, size, pixelValues); |
| | | |
| | | sum.add(pixelValues); |
| | | processPoint(entity, pub, point, size); |
| | | rs.add(entity); |
| | | } |
| | | |
| | | // 释放资源 |
| | | gdal.GDALDestroyDriverManager(); |
| | | |
| | | return average(calculateAverage(sum)); |
| | | return rs; |
| | | } |
| | | |
| | | /** |
| | | * 设置错误 |
| | | */ |
| | | private void setError(AnalysisResultEntity entity, String info) { |
| | | entity.setCode(StaticData.I500); |
| | | entity.setInfo(info); |
| | | } |
| | | |
| | | /** |
| | | * 处理点 |
| | | */ |
| | | private void processPoint(AnalysisResultEntity entity, PublishEntity pub, Geometry point, int size) { |
| | | List<MetaEntity> metas = publishService.selectMetasByPubid(pub.getId()); |
| | | if (null == metas || metas.isEmpty()) { |
| | | setError(entity, "找不到发布数据"); |
| | | return; |
| | | } |
| | | |
| | | String filePath = pathHelper.getConfig().getUploadPath() + File.separator + metas.get(0).getPath(); |
| | | File file = new File(filePath); |
| | | if (!file.exists() || file.isDirectory()) { |
| | | setError(entity, "源数据不存在"); |
| | | return; |
| | | } |
| | | |
| | | processPoint(entity, filePath, point, size); |
| | | } |
| | | |
| | | /** |
| | | * 处理点 |
| | | */ |
| | | public void processPoint(AnalysisResultEntity entity, String filePath, Geometry point, int size) { |
| | | Dataset ds = null; |
| | | try { |
| | | ds = gdal.Open(filePath); |
| | | if (null == ds) { |
| | | throw new Exception("打开栅格数据失败"); |
| | | } |
| | | |
| | | double x = point.GetX(), y = point.GetY(); |
| | | double[] transform = ds.GetGeoTransform(); |
| | | // double rotationX = transform[2]; double rotationY = transform[4] |
| | | double minX = transform[0], pixelWidth = transform[1], maxY = transform[3], pixelHeight = transform[5]; |
| | | |
| | | int xPixel = (int) Math.floor((x - minX) / pixelWidth); |
| | | int yPixel = (int) Math.floor((maxY - y) / Math.abs(pixelHeight)); |
| | | |
| | | int bandCount = ds.getRasterCount(); |
| | | |
| | | List<double[]> sum = new ArrayList<>(); |
| | | for (int bandIndex = 1; bandIndex <= bandCount; bandIndex++) { |
| | | double[] pixelValues = new double[size * size]; |
| | | Band band = ds.GetRasterBand(bandIndex); |
| | | band.ReadRaster(xPixel, yPixel, size, size, pixelValues); |
| | | |
| | | sum.add(pixelValues); |
| | | } |
| | | |
| | | //return average(calculateAverage(sum)); |
| | | } catch (Exception ex) { |
| | | setError(entity, ex.getMessage()); |
| | | log.error(ex.getMessage(), ex); |
| | | } finally { |
| | | // gdal.GDALDestroyDriverManager() |
| | | if (null != ds) { |
| | | ds.delete(); |
| | | } |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 分析线 |
| | | */ |
| | | public List<AnalysisResultEntity> analysisPolyline(Geometry polyline) { |
| | | List<AnalysisResultEntity> rs = new ArrayList<>(); |
| | | // |
| | | |
| | | return rs; |
| | | } |
| | | |
| | | /** |
| | | * 分析面 |
| | | */ |
| | | public List<AnalysisResultEntity> analysisPolygon(Geometry polygon) { |
| | | List<AnalysisResultEntity> rs = new ArrayList<>(); |
| | | // |
| | | |
| | | return rs; |
| | | } |
| | | |
| | | |
| | | public List<Double> processLine(String imagePath, String geometryString) { |
| | | // 打开栅格图像数据集 |
| | | Dataset dataset = gdal.Open(imagePath); |