| | |
| | | package com.se.simu.helper; |
| | | |
| | | import lombok.extern.slf4j.Slf4j; |
| | | import org.gdal.gdal.Band; |
| | | import org.gdal.gdal.Dataset; |
| | | import org.gdal.gdal.gdal; |
| | | import org.gdal.gdalconst.gdalconst; |
| | | import org.gdal.ogr.DataSource; |
| | | import org.gdal.ogr.Driver; |
| | | import org.gdal.ogr.Layer; |
| | | import org.gdal.ogr.ogr; |
| | | import org.gdal.osr.SpatialReference; |
| | | import org.gdal.osr.osr; |
| | | |
| | | import java.io.File; |
| | | |
| | |
| | | * GDAL帮助类 |
| | | * |
| | | * @author WWW |
| | | * @date 2024-07-16 |
| | | * @date 2024-09-12 |
| | | */ |
| | | @Slf4j |
| | | @SuppressWarnings("ALL") |
| | | public class GdalHelper { |
| | | public final static int I4326 = 4326; |
| | | |
| | | public final static int I4490 = 4490; |
| | | |
| | | public static SpatialReference SR4326; |
| | | |
| | | public static SpatialReference SR4490; |
| | | |
| | | public final static String CGCS2000 = "CGCS2000"; |
| | | |
| | | /** |
| | | * 初始化 |
| | | */ |
| | | public static void init(String gdalPath) { |
| | | // 配置环境变量 |
| | | if (!StringHelper.isEmpty(gdalPath)) { |
| | | if (WebHelper.isWin()) { |
| | | gdal.SetConfigOption("GDAL_DATA", gdalPath + "/gdal-data"); |
| | | gdal.SetConfigOption("PROJ_LIB", gdalPath + "/proj7/share"); |
| | | //System.setProperty("PROJ_LIB", gdalPath + "/proj7/share") |
| | | gdal.SetConfigOption("GDAL_DRIVER_PATH", gdalPath + "/gdalplugins"); |
| | | |
| | | String path = System.getenv("PATH"); |
| | | if (!path.contains(gdalPath)) { |
| | | System.setProperty("PATH", path + ";" + gdalPath); |
| | | } |
| | | } else { |
| | | //System.setProperty("java.library.path", gdalPath); |
| | | } |
| | | } |
| | | |
| | | // 支持中文路径 |
| | | gdal.SetConfigOption("GDAL_FILENAME_IS_UTF8", "YES"); |
| | | // 属性表支持中文:CP936 |
| | |
| | | gdal.SetConfigOption("PGEO_DRIVER_TEMPLATE", "DRIVER=Microsoft Access Driver (*.mdb, *.accdb);DBQ=%s"); |
| | | gdal.SetConfigOption("MDB_DRIVER_TEMPLATE", "DRIVER=Microsoft Access Driver (*.mdb, *.accdb);DBQ=%s"); |
| | | |
| | | // 配置环境变量 |
| | | if (!StringHelper.isEmpty(gdalPath)) { |
| | | gdal.SetConfigOption("GDAL_DATA", gdalPath + File.separator + "gdal-data"); |
| | | gdal.SetConfigOption("PROJ_LIB", gdalPath + File.separator + "proj7" + File.separator + "share"); |
| | | //System.setProperty("PROJ_LIB", gdalPath + File.separator + "proj7" + File.separator + "share") |
| | | gdal.SetConfigOption("GDAL_DRIVER_PATH", gdalPath + File.separator + "gdalplugins"); |
| | | |
| | | String path = System.getenv("PATH"); |
| | | if (!path.contains(gdalPath)) { |
| | | System.setProperty("PATH", path + ";" + gdalPath); |
| | | } |
| | | } |
| | | |
| | | // 注册所有的驱动 |
| | | gdal.AllRegister(); |
| | | ogr.RegisterAll(); |
| | | initSr(); |
| | | } |
| | | |
| | | /** |
| | | * 初始化坐标系 |
| | | * <p> |
| | | * https://blog.csdn.net/CallmeAdo/article/details/127558139 |
| | | */ |
| | | public static void initSr() { |
| | | try { |
| | | SR4326 = new SpatialReference(); |
| | | SR4326.ImportFromEPSG(I4326); |
| | | // 对于lat/long顺序的地理CRS,数据仍然是long/lat顺序的 |
| | | SR4326.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER); |
| | | |
| | | SR4490 = new SpatialReference(); |
| | | SR4490.ImportFromEPSG(I4490); |
| | | SR4490.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER); |
| | | } catch (Exception ex) { |
| | | log.error(ex.getMessage(), ex); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 创建金字塔 |
| | | */ |
| | | public static void createPyramid(String file) { |
| | | Dataset ds = null; |
| | | try { |
| | | File f = new File(file); |
| | | if (!f.exists() || f.isDirectory()) { |
| | | return; |
| | | } |
| | | |
| | | ds = gdal.Open(file, gdalconst.GA_ReadOnly); |
| | | if (null == ds || ds.getRasterCount() < 1 || null == ds.GetSpatialRef()) { |
| | | return; |
| | | } |
| | | |
| | | // 创建金字塔 |
| | | Band band = ds.GetRasterBand(1); |
| | | if (0 == band.GetOverviewCount()) { |
| | | ds.BuildOverviews("nearest", new int[]{2, 4, 6, 8, 16}, null); |
| | | } |
| | | } catch (Exception ex) { |
| | | log.error(ex.getMessage(), ex); |
| | | } finally { |
| | | if (null != ds) { |
| | | ds.delete(); |
| | | } |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 销毁资源 |
| | | */ |
| | | public static void delete(Layer layer, DataSource dataSource, Driver driver) { |
| | | try { |
| | | if (null != layer) { |
| | | layer.delete(); |
| | | } |
| | | } catch (Exception ex) { |
| | | log.error(ex.getMessage(), ex); |
| | | } |
| | | try { |
| | | if (null != dataSource) { |
| | | dataSource.delete(); |
| | | } |
| | | } catch (Exception ex) { |
| | | log.error(ex.getMessage(), ex); |
| | | } |
| | | try { |
| | | if (null != driver) { |
| | | driver.delete(); |
| | | } |
| | | } catch (Exception ex) { |
| | | log.error(ex.getMessage(), ex); |
| | | } |
| | | } |
| | | } |