From 243582acd958f94790e92c3825a0b93249486300 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期六, 02 十一月 2024 19:09:22 +0800
Subject: [PATCH] 修改切片tif数据功能
---
src/main/java/com/se/simu/service/ResultService.java | 25 +++++++++++++------------
1 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/src/main/java/com/se/simu/service/ResultService.java b/src/main/java/com/se/simu/service/ResultService.java
index 8cb6be8..7f7371b 100644
--- a/src/main/java/com/se/simu/service/ResultService.java
+++ b/src/main/java/com/se/simu/service/ResultService.java
@@ -32,7 +32,6 @@
import java.util.*;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
-import java.util.stream.DoubleStream;
/**
* 澶勭悊缁撴灉鏈嶅姟绫�
@@ -272,7 +271,7 @@
if (files.size() == 0 || files.size() != layer.getWaters().getData().size()) return null;
processWaters(dto, files, layer);
-
+
return processBuilding(dto, files, layer);
}
@@ -479,18 +478,20 @@
double[] env = new double[4];
building.getGeom().GetEnvelope(env);
- int xMinPixel = Math.max((int) Math.floor((env[0] - minX) / pixelWidth), 1);
- int yMinPixel = Math.max((int) Math.floor((maxY - env[3]) / pixelHeight), 1);
- int xMaxPixel = Math.min((int) Math.floor((env[1] - minX) / pixelWidth), xSize);
- int yMaxPixel = Math.min((int) Math.floor((maxY - env[2]) / pixelHeight), ySize);
- if (xMaxPixel < 1 || yMaxPixel < 1 || xMaxPixel - xMinPixel < 0 || yMaxPixel - yMinPixel < 0) {
- return null;
- }
+ int startX = (int) Math.floor((env[0] - minX) / pixelWidth);
+ int endX = (int) Math.floor((env[1] - minX) / pixelWidth);
+ int startY = (int) Math.floor((maxY - env[3]) / Math.abs(pixelHeight));
+ int endY = (int) Math.floor((maxY - env[2]) / Math.abs(pixelHeight));
+ if (startX < 0) startX = 0;
+ if (startY < 0) startY = 0;
+ if (endX > ds.getRasterXSize()) endX = ds.getRasterXSize();
+ if (endY > ds.getRasterYSize()) endY = ds.getRasterYSize();
+ if (endX - startX < 1 || endY - startY < 1) return null;
- int width = xMaxPixel - xMinPixel;
- int height = yMaxPixel - yMinPixel;
+ int width = endX - startX;
+ int height = endY - startY;
double[] pixelValues = new double[width * height];
- ds.GetRasterBand(1).ReadRaster(xMinPixel, yMinPixel, width, height, pixelValues);
+ ds.GetRasterBand(1).ReadRaster(startX, startY, width, height, pixelValues);
Double val = Arrays.stream(pixelValues).max().getAsDouble();
--
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