创建金字塔

13693261870

2024-07-16 a7766f8c1619fde0ea8233fd078205031bab54ef

 src/main/java/com/se/simu/helper/GdalHelper.java

@@ -1,7 +1,11 @@
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.gdalconst.gdalconstConstants;
import org.gdal.ogr.ogr;

import java.io.File;
@@ -15,6 +19,9 @@
@Slf4j
@SuppressWarnings("ALL")
public class GdalHelper {
    /**
     * 初始化
     */
    public static void init(String gdalPath) {
        // 支持中文路径
        gdal.SetConfigOption("GDAL_FILENAME_IS_UTF8", "YES");
@@ -25,10 +32,10 @@

        // 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");
            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)) {
@@ -40,4 +47,31 @@
        gdal.AllRegister();
        ogr.RegisterAll();
    }

    /**
     * 创建金字塔
     */
    public static void createPyramid(String file) {
        try {
            File f = new File(file);
            if (!f.exists() || f.isDirectory()) {
                return;
            }

            Dataset ds = gdal.Open(file, gdalconst.GA_ReadOnly);
            if (null == ds) {
                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);
            }

            ds.delete();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        }
    }
}