From 2264d9de37892022293424a818fa7ee5ac9c50a6 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期六, 16 九月 2023 08:55:05 +0800
Subject: [PATCH] 1
---
DataLoader/CS/GdalHelper.cs | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/DataLoader/CS/GdalHelper.cs b/DataLoader/CS/GdalHelper.cs
index 9e5e701..95153a8 100644
--- a/DataLoader/CS/GdalHelper.cs
+++ b/DataLoader/CS/GdalHelper.cs
@@ -129,6 +129,7 @@
ColorTable ct = ds.GetRasterBand(1).GetRasterColorTable();
vd.Meta.ct = null == ct ? null : ct.ToString(); // 鏁版嵁棰滆壊琛�
vd.Meta.h_datum = null; // 楂樼▼鍩哄噯
+ setMinAndMax(ds, vd.Meta); // 璁剧疆鏈�鍊�
double[] tr = new double[6];
ds.GetGeoTransform(tr);
@@ -235,6 +236,30 @@
return geo;
}
+
+ /// <summary>
+ /// 璁剧疆鏈�鍊�
+ /// GDALRasterBand::GetHistogram聽鈥嬧�嬬粺璁＄洿鏂瑰浘
+ /// </summary>
+ private void setMinAndMax(Dataset ds, SysMeta meta)
+ {
+ List<double> minList = new List<double>();
+ List<double> maxList = new List<double>();
+
+ for (int i = 1; i <= ds.RasterCount; i++)
+ {
+ int hasval;
+ double min, max;
+ ds.GetRasterBand(i).GetMinimum(out min, out hasval);
+ ds.GetRasterBand(i).GetMaximum(out max, out hasval);
+
+ minList.Add(min);
+ maxList.Add(max);
+ }
+
+ meta.min = string.Join(",", minList.ToArray());
+ meta.max = string.Join(",", maxList.ToArray());
+ }
#endregion
}
}
--
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