From c738483367653c6485ddc9a6dcdea019ad08cc63 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期四, 31 十月 2024 17:44:02 +0800
Subject: [PATCH] 根据坐标查询积水深度
---
src/main/java/com/se/simu/service/WaterService.java | 100 ++++++++++++++++++++++++++++---------------------
1 files changed, 57 insertions(+), 43 deletions(-)
diff --git a/src/main/java/com/se/simu/service/WaterService.java b/src/main/java/com/se/simu/service/WaterService.java
index 1c05a40..19a4736 100644
--- a/src/main/java/com/se/simu/service/WaterService.java
+++ b/src/main/java/com/se/simu/service/WaterService.java
@@ -1,13 +1,17 @@
package com.se.simu.service;
+import cn.hutool.json.JSONUtil;
import com.se.simu.config.PropertiesConfig;
+import com.se.simu.domain.po.DataPo;
+import com.se.simu.domain.po.SimuPo;
import com.se.simu.domain.vo.*;
+import com.se.simu.helper.GdalHelper;
import lombok.extern.slf4j.Slf4j;
-import org.gdal.gdal.Band;
import org.gdal.gdal.Dataset;
import org.gdal.gdal.gdal;
-import org.gdal.gdalconst.gdalconstConstants;
+import org.gdal.gdalconst.gdalconst;
import org.gdal.osr.SpatialReference;
+import org.gdal.osr.osr;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
@@ -25,6 +29,7 @@
*/
@Slf4j
@Service
+@SuppressWarnings("ALL")
public class WaterService {
@Resource
PropertiesConfig config;
@@ -123,64 +128,73 @@
}
/**
- * 鏍规嵁鍧愭爣鏌ヨ绉按娣卞害
+ * 鏍规嵁鍧愭爣鏌ヨ绉按娣卞害:gdalconst.GA_Update
*/
- public Double getWaterHeight(String serviceName, Double x, Double y, Long timestamp) {
- String filePath = config.getOutPath() + File.separator + serviceName + File.separator + "waters"
+ public Double getWaterHeight(SimuPo simu, double x, double y, Long timestamp) {
+ String filePath = config.getOutPath() + File.separator + simu.getServiceName() + File.separator + "waters"
+ File.separator + timestamp + File.separator + "water.tif";
- // 棣栧厛鏄墍鏈塯dal绋嬪簭閮介渶瑕佺殑娉ㄥ唽璇彞
- gdal.AllRegister();
- // 璇诲彇褰卞儚
- Dataset hDataset = gdal.Open(filePath, gdalconstConstants.GA_Update);
+ Dataset ds = null;
+ try {
+ ds = gdal.Open(filePath, gdalconst.GA_ReadOnly);
+ if (null == ds || ds.getRasterCount() < 1) {
+ return null;
+ }
+ if (null == ds.GetSpatialRef()) {
+ ds.SetSpatialRef(getSpatialRef(simu));
+ }
- // 璁剧疆鏁版嵁闆嗙殑鎶曞奖
- SpatialReference srs = new SpatialReference();
- srs.ImportFromEPSG(4548);
- hDataset.SetProjection(srs.ExportToWkt());
+ double[] gt = ds.GetGeoTransform();
+ double[] xy = GdalHelper.fromWgs84(ds.GetSpatialRef(), x, y);
+ int[] XY = coordinates2ColRow(gt, xy[0], xy[1]);
- //鑾峰彇鏍呮牸鏁伴噺
- int numBands=hDataset.GetRasterCount();
- System.out.println("RasterCount: " + numBands);
- //鏋勯�犱豢灏勫彉鎹㈠弬鏁版暟缁勶紝骞惰幏鍙栨暟鎹�
- double[] gt = new double[6];
- hDataset.GetGeoTransform(gt);
- System.out.println("浠垮皠鍙樻崲鍙傛暟"+ Arrays.toString(gt));
+ if (XY[0] < 0 || XY[1] < 0 || XY[0] > ds.getRasterXSize() || XY[1] > ds.getRasterYSize()) {
+ return null;
+ }
- //缁忕含搴﹁浆鎹负鏍呮牸鍍忕礌鍧愭爣
- int[] ColRow=Coordinates2ColRow(gt,x,y);
+ double[] values = new double[1];
+ ds.GetRasterBand(1).ReadRaster(XY[0], XY[1], 1, 1, values);
+ double val = values[0];
- //鍒ゆ柇鏄惁鍧愭爣瓒呭嚭鑼冨洿
- if(ColRow[0]<0||ColRow[1]<0||ColRow[0]>hDataset.getRasterXSize()||ColRow[1]>hDataset.getRasterYSize()){
- System.out.println(Arrays.toString(ColRow)+"鍧愭爣鍊艰秴鍑烘爡鏍艰寖鍥达紒");
+ return isValid(val) ? val : null;
+ } catch (Exception ex) {
+ log.error(ex.getMessage(), ex);
return null;
+ } finally {
+ if (null != ds) ds.delete();
}
+ }
- //鑾峰彇璇ョ偣瀵瑰簲鐨勬尝娈电殑鍊�
- Band band = hDataset.GetRasterBand(1);
- double[] values = new double[1];
- band.ReadRaster(ColRow[0], ColRow[1], 1, 1, values);
- double value = values[0];
+ private SpatialReference getSpatialRef(SimuPo simu) {
+ DataPo data = JSONUtil.toBean(simu.getData(), DataPo.class);
- //閲婃斁璧勬簮
- hDataset.delete();
- return value;
+ SpatialReference sr = new SpatialReference();
+ sr.ImportFromEPSG(data.getEpsg());
+ sr.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER);
+
+ return sr;
}
/**
* 灏嗗湴鍥惧潗鏍囪浆鎹负鏍呮牸鍍忕礌鍧愭爣
+ *
* @param gt 浠垮皠鍙樻崲鍙傛暟
- * @param X 妯潗鏍�
- * @param Y 绾靛潗鏍�
- * @return
+ * @param x 妯潗鏍�
+ * @param y 绾靛潗鏍�
+ * @return 鍍忕礌鍧愭爣
*/
- public int[] Coordinates2ColRow(double[] gt, double X, double Y){
+ public int[] coordinates2ColRow(double[] gt, double x, double y) {
int[] ints = new int[2];
- //鍚戜笅鍙栨暣,濡傛灉鍚戜笂鍙栨暣浼氬鑷磋绠楃粨鏋滃亸澶э紝浠庤�屽湪鍚庨潰璇诲彇鍒伴偦杩戝儚鍏冪殑鏁版嵁
- double Yline = Math.floor(((Y - gt[3])*gt[1] - (X-gt[0])*gt[4]) / (gt[5]*gt[1]-gt[2]*gt[4]));
- double Xpixel = Math.floor((X-gt[0] - Yline*gt[2])/gt[1]);
- ints[0] = new Double(Xpixel).intValue();
- ints[1] = new Double(Yline).intValue();
- return ints;
+
+ // 鍚戜笅鍙栨暣,濡傛灉鍚戜笂鍙栨暣浼氬鑷磋绠楃粨鏋滃亸澶э紝浠庤�屽湪鍚庨潰璇诲彇鍒伴偦杩戝儚鍏冪殑鏁版嵁
+ //Double col = Math.floor(((y - gt[3]) * gt[1] - (x - gt[0]) * gt[4]) / (gt[5] * gt[1] - gt[2] * gt[4]));
+ Double col = Math.floor((y * gt[1] - x * gt[4] + gt[0] * gt[4] - gt[3] * gt[1]) / (gt[5] * gt[1] - gt[2] * gt[4]));
+ Double row = Math.floor((x - gt[0] - col * gt[2]) / gt[1]);
+
+ return new int[]{row.intValue(), col.intValue()};
+ }
+
+ public static boolean isValid(double val) {
+ return !Double.isNaN(val) && val > Integer.MIN_VALUE;
}
}
--
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