From aa23fdacb23b6e7e194d3e02760ab47590345205 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期一, 04 十二月 2023 14:10:24 +0800
Subject: [PATCH] 修订分析的有效值

---
 src/main/java/com/moon/server/service/data/RasterAnalysisService.java |   97 ++++++++++++++++++++++++++++++++++++------------
 1 files changed, 73 insertions(+), 24 deletions(-)

diff --git a/src/main/java/com/moon/server/service/data/RasterAnalysisService.java b/src/main/java/com/moon/server/service/data/RasterAnalysisService.java
index 68831ef..631eac8 100644
--- a/src/main/java/com/moon/server/service/data/RasterAnalysisService.java
+++ b/src/main/java/com/moon/server/service/data/RasterAnalysisService.java
@@ -7,6 +7,7 @@
 import com.moon.server.entity.data.PublishEntity;
 import com.moon.server.helper.GeoHelper;
 import com.moon.server.helper.PathHelper;
+import com.moon.server.helper.StringHelper;
 import com.moon.server.helper.WebHelper;
 import com.moon.server.service.all.WebSocketService;
 import org.apache.commons.logging.Log;
@@ -17,11 +18,13 @@
 import org.gdal.gdal.gdal;
 import org.gdal.ogr.Geometry;
 import org.gdal.ogr.ogr;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
 import java.awt.geom.Point2D;
 import java.io.File;
+import java.io.FileWriter;
 import java.io.IOException;
 import java.util.*;
 
@@ -32,6 +35,9 @@
  */
 @Service
 public class RasterAnalysisService {
+    @Value("${sys.gdal_path}")
+    String gdalPath;
+
     @Resource
     PathHelper pathHelper;
 
@@ -42,6 +48,11 @@
 
     /**
      * 娴嬭瘯
+     * <p>
+     * POINT (26.72 -48.58)
+     * LINESTRING(18.44 -46.69,20.14 -45.93)
+     * POLYGON ((5.11 -41.64,7.68 -43.59,4.73 -43.3,5.11 -41.64))
+     * POLYGON ((42.6 -40.3,49.1 -40.4,49.1 -65.7,46.3 -65.6,42.6 -40.3))
      */
     public List<AnalysisResultEntity> test(Geometry geo, Integer size) {
         List<AnalysisResultEntity> rs = new ArrayList<>();
@@ -63,11 +74,12 @@
             return;
         }
 
-        // for (PublishEntity pub : pubs) {
+        //for (PublishEntity pub : pubs) {
         pubs.parallelStream().forEach(pub -> {
             try {
                 AnalysisResultEntity entity = new AnalysisResultEntity(token);
                 entity.setLayerName(pub.getName());
+                entity.setUnit(pub.getUnit());
 
                 List<MetaEntity> metas = publishService.selectMetasByPubid(pub.getId());
                 if (null == metas || metas.isEmpty()) {
@@ -76,7 +88,7 @@
                     return;
                 }
 
-                String filePath = pathHelper.getConfig().getUploadPath() + File.separator + metas.get(0).getPath();
+                String filePath = getFilePath(metas);
                 File file = new File(filePath);
                 if (!file.exists() || file.isDirectory()) {
                     setError(entity, "婧愭暟鎹笉瀛樺湪");
@@ -93,6 +105,31 @@
     }
 
     /**
+     * 鑾峰彇鏂囦欢璺緞
+     */
+    private String getFilePath(List<MetaEntity> metas) throws IOException {
+        String basePath = pathHelper.getConfig().getUploadPath() + File.separator;
+        if (metas.size() == 1) {
+            return basePath + metas.get(0).getPath();
+        }
+
+        String tempPath = pathHelper.getTempPath() + File.separator, guid = StringHelper.getGuid();
+        String fileList = tempPath + guid + ".txt";
+        FileWriter fw = new FileWriter(fileList);
+        for (int i = 0, c = metas.size(); i < c; i++) {
+            String str = (i > 0 ? "\r\n" : "") + basePath + metas.get(i).getPath();
+            fw.write(str.toCharArray());
+        }
+        fw.close();
+
+        String vrt = tempPath + guid + ".vrt";
+        String cmd = String.format("\"%s\\gdalbuildvrt.exe\" -input_file_list \"%s\" \"%s\"", gdalPath, fileList, vrt);
+        WebHelper.exec(cmd);
+
+        return vrt;
+    }
+
+    /**
      * 鎺ㄩ�佹秷鎭�
      */
     private void postInfo(AnalysisResultEntity entity) throws IOException {
@@ -100,7 +137,8 @@
         map.put("analysisForPost", entity);
 
         String json = JSONObject.toJSONString(map);
-        // System.out.println(json)
+        //System.out.println(json)
+
         WebSocketService.broadCastInfo(json);
     }
 
@@ -116,26 +154,30 @@
         }
 
         for (PublishEntity pub : pubs) {
-            AnalysisResultEntity entity = new AnalysisResultEntity();
-            entity.setLayerName(pub.getName());
+            try {
+                AnalysisResultEntity entity = new AnalysisResultEntity();
+                entity.setLayerName(pub.getName());
+                entity.setUnit(pub.getUnit());
 
-            List<MetaEntity> metas = publishService.selectMetasByPubid(pub.getId());
-            if (null == metas || metas.isEmpty()) {
-                setError(entity, "鎵句笉鍒板彂甯冩暟鎹�");
-                continue;
+                List<MetaEntity> metas = publishService.selectMetasByPubid(pub.getId());
+                if (null == metas || metas.isEmpty()) {
+                    setError(entity, "鎵句笉鍒板彂甯冩暟鎹�");
+                    continue;
+                }
+
+                String filePath = getFilePath(metas);
+                File file = new File(filePath);
+                if (!file.exists() || file.isDirectory()) {
+                    setError(entity, "婧愭暟鎹笉瀛樺湪");
+                    continue;
+                }
+
+                openRaster(entity, filePath, geo, size);
+                rs.add(entity);
+            } catch (Exception ex) {
+                log.error(ex.getMessage(), ex);
             }
-
-            String filePath = pathHelper.getConfig().getUploadPath() + File.separator + metas.get(0).getPath();
-            File file = new File(filePath);
-            if (!file.exists() || file.isDirectory()) {
-                setError(entity, "婧愭暟鎹笉瀛樺湪");
-                continue;
-            }
-
-            openRaster(entity, filePath, geo, size);
-            rs.add(entity);
         }
-
         return rs;
     }
 
@@ -144,8 +186,8 @@
      */
     private void openRaster(AnalysisResultEntity entity, String filePath, Geometry geo, int size) {
         Dataset ds = null;
-        filePath = "D:\\Moon\\data\\DOM\\test.tif";
         try {
+            // filePath = "D:\\Moon\\data\\DOM\\test.tif"
             ds = gdal.Open(filePath);
             if (null == ds) {
                 throw new Exception("鎵撳紑鏍呮牸鏁版嵁澶辫触");
@@ -216,7 +258,7 @@
             for (int j = 1; j <= bandCount; j++) {
                 double[] pixelValues = new double[1];
                 ds.GetRasterBand(j).ReadRaster(xPixel, yPixel, 1, 1, pixelValues);
-                if (!Double.isNaN(pixelValues[0])) {
+                if (isValid(pixelValues[0])) {
                     vals.add(WebHelper.round(pixelValues[0], 3));
                 }
             }
@@ -274,7 +316,7 @@
             for (Integer x : xList) {
                 for (Integer y : yList) {
                     ds.GetRasterBand(i).ReadRaster(x, y, 1, 1, pixelValues);
-                    if (!Double.isNaN(pixelValues[0])) {
+                    if (isValid(pixelValues[0])) {
                         list.add(pixelValues[0]);
                     }
                 }
@@ -315,7 +357,7 @@
 
         List<Double> list = new ArrayList<>();
         for (double val : pixelValues) {
-            if (!Double.isNaN(val)) {
+            if (isValid(val)) {
                 list.add(val);
             }
         }
@@ -323,6 +365,13 @@
     }
 
     /**
+     * 鍊兼槸鍚︽湁鏁�
+     */
+    public static boolean isValid(Double val) {
+        return !Double.isNaN(val) && val > Integer.MIN_VALUE;
+    }
+
+    /**
      * 璁剧疆Band鍊�
      */
     private void setBandVals(AnalysisResultEntity entity, List<Double> list) {

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