From cad4729d3e6b7a3ff7fcad45c8f592a7813f9c27 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期四, 28 十一月 2024 09:44:02 +0800
Subject: [PATCH] 1

---
 src/main/java/com/se/simu/service/ResultService.java |   35 +++++++++++++----------------------
 1 files changed, 13 insertions(+), 22 deletions(-)

diff --git a/src/main/java/com/se/simu/service/ResultService.java b/src/main/java/com/se/simu/service/ResultService.java
index d7f6840..a2d5efe 100644
--- a/src/main/java/com/se/simu/service/ResultService.java
+++ b/src/main/java/com/se/simu/service/ResultService.java
@@ -457,17 +457,20 @@
 
         List<PondingPo> list = new ArrayList<>();
         for (Geometry geometry : geometries) {
-            List<PointDto> points = getValues(ds, geometry, transform, xSize, ySize);
-            if (CollectionUtils.isEmpty(points)) continue;
+            //List<PointDto> points = getValues(ds, geometry, transform, xSize, ySize);
+            //if (CollectionUtils.isEmpty(points)) continue;
 
-            PointDto point = Collections.max(points);
+            //PointDto point = Collections.max(points);
+            PointDto point = getValues(ds, geometry, transform, xSize, ySize);
+            if (null == point) continue;
+
             list.add(new PondingPo(geometry, point));
         }
 
         return list;
     }
 
-    private List<PointDto> getValues(Dataset ds, Geometry g, double[] transform, int xSize, int ySize) {
+    private PointDto getValues(Dataset ds, Geometry g, double[] transform, int xSize, int ySize) {
         double[] env = new double[4];
         g.GetEnvelope(env);
 
@@ -481,26 +484,14 @@
         if (endY > ds.getRasterYSize()) endY = ds.getRasterYSize();
         if (endX - startX < 1 || endY - startY < 1) return null;
 
-        List<XYDto> xyList = new ArrayList<>();
-        for (int x = startX; x <= endX; x++) {
-            for (int y = startY; y <= endY; y++) {
-                xyList.add(new XYDto(x, y));
-            }
-        }
+        int width = endX - startX;
+        int height = endY - startY;
+        double[] pixelValues = new double[width * height];
+        ds.GetRasterBand(1).ReadRaster(startX, startY, width, height, pixelValues);
 
-        List<PointDto> points = new CopyOnWriteArrayList<>();
-        xyList.stream().forEach(xy -> {
-            double X = transform[0] + xy.getX() * transform[1] + xy.getY() * transform[2];
-            double Y = transform[3] + xy.getX() * transform[4] + xy.getY() * transform[5];
+        Double val = Arrays.stream(pixelValues).max().getAsDouble();
 
-            float[] values = new float[1];
-            ds.GetRasterBand(1).ReadRaster(xy.getX(), xy.getY(), 1, 1, values);
-            if (Float.isNaN(values[0]) || values[0] < -999 || !ComHelper.isContains(g, X, Y)) return;
-
-            points.add(new PointDto(X, Y, values[0]));
-        });
-
-        return points;
+        return new PointDto(g.Centroid().GetX(), g.Centroid().GetY(), ComHelper.isValid(val) ? val : 0.0);
     }
 
     private void copeFlow(ResultDto dto, LayerDto layer) {

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