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/helper/ComHelper.java | 37 +++++++++++++++++++++++++++++++++++++
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/se/simu/helper/ComHelper.java b/src/main/java/com/se/simu/helper/ComHelper.java
index e56f848..c625043 100644
--- a/src/main/java/com/se/simu/helper/ComHelper.java
+++ b/src/main/java/com/se/simu/helper/ComHelper.java
@@ -20,6 +20,7 @@
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;
+import java.util.concurrent.CopyOnWriteArrayList;
@Slf4j
@SuppressWarnings("ALL")
@@ -210,4 +211,40 @@
if (null != ds) ds.delete();
}
}
+
+ private List<PointDto> getValues2(Dataset ds, Geometry g, double[] transform, int xSize, int ySize) {
+ double[] env = new double[4];
+ g.GetEnvelope(env);
+
+ int startX = (int) Math.floor((env[0] - transform[0]) / transform[1]);
+ int endX = (int) Math.floor((env[1] - transform[0]) / transform[1]);
+ int startY = (int) Math.floor((transform[3] - env[3]) / Math.abs(transform[5]));
+ int endY = (int) Math.floor((transform[3] - env[2]) / Math.abs(transform[5]));
+ 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;
+
+ 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));
+ }
+ }
+
+ 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];
+
+ 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;
+ }
}
--
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