From 9d25253a85cc4fb3aa0f4adc764626ad0e64d66a Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期四, 25 七月 2024 14:40:01 +0800
Subject: [PATCH] 修改算法-1
---
SimuTools/Tools/Handle.cs | 737 ++++++++++++++++++++++++++++++++++++++++----------------
1 files changed, 523 insertions(+), 214 deletions(-)
diff --git a/SimuTools/Tools/Handle.cs b/SimuTools/Tools/Handle.cs
index 24b36b6..0b3938d 100644
--- a/SimuTools/Tools/Handle.cs
+++ b/SimuTools/Tools/Handle.cs
@@ -9,18 +9,25 @@
using System.Drawing;
using System.IO;
using System.Linq;
-using System.Text;
using System.Threading.Tasks;
namespace SimuTools.Tools
{
public class Handle
{
+ #region 鎴愬憳鍙橀噺
public static readonly int MAX = 256 * 256;
- public static readonly string GdalPath = ConfigurationManager.AppSettings["gdalPath"];
+ public static readonly double MAX_X_OFFSET = 0.002;
+
+ public static readonly double MIN_X_OFFSET = -0.00005;
+
+ public static readonly double WaterHeightOffset = 1.0;
public static readonly string BaseDir = AppDomain.CurrentDomain.BaseDirectory;
+
+ public static readonly string GdalPath = ConfigurationManager.AppSettings["gdalPath"];
+ #endregion
/// <summary>
/// 杩愯
@@ -35,7 +42,7 @@
string temp = Path.Combine(outPath, "temp");
if (!Directory.Exists(temp)) Directory.CreateDirectory(temp);
- CopeTerrain(terrainFile, outPath, layer);
+ CopeTerrain(terrainFile, waterPath, outPath, layer);
CopeWater(waterPath, outPath, layer);
CopeFlow(flowPath, outPath, layer);
CopeLayerJson(outPath, layer);
@@ -43,10 +50,11 @@
if (Directory.Exists(temp)) Directory.Delete(temp, true);
}
+ #region 鍦板舰
/// <summary>
/// 澶勭悊鍦板舰
/// </summary>
- private static void CopeTerrain(string terrainFile, string outPath, Domain.Layer layer)
+ private static void CopeTerrain(string terrainFile, string waterPath, string outPath, Domain.Layer layer)
{
Dataset ds = null;
try
@@ -55,6 +63,7 @@
if (null == ds || 0 == ds.RasterCount || null == ds.GetSpatialRef()) return;
SetTerrainInfo(ds, layer);
+ SetWaterInfo(waterPath, layer);
CreateTerrainPng(ds, layer, outPath);
}
finally
@@ -68,18 +77,41 @@
/// </summary>
private static void SetTerrainInfo(Dataset ds, Domain.Layer layer)
{
+ //String srsName = ds.GetSpatialRef().GetName();
+ //layer.terrain.epsg = !string.IsNullOrEmpty(srsName) && srsName.Contains(GdalHelper.CGCS2000) ? "EPSG:4490" : "EPSG:4326";
+
Geometry minPoint = GdalHelper.GetMinPoint(ds);
Geometry maxPoint = GdalHelper.GetMaxPoint(ds);
- layer.extension = new Extension(minPoint.GetX(0), minPoint.GetY(0), maxPoint.GetX(0), maxPoint.GetY(0));
+ double minx = GetMinVal(minPoint.GetX(0), 10000000);
+ double miny = GetMinVal(minPoint.GetY(0), 10000000);
+ double maxx = GetMaxVal(maxPoint.GetX(0) + MAX_X_OFFSET, 10000000);
+ double maxy = GetMaxVal(maxPoint.GetY(0), 10000000);
+ layer.extension = new Extension(minx, miny, maxx, maxy, double.MaxValue, double.MinValue);
- OSGeo.GDAL.Band band = ds.GetRasterBand(1);
+ Band band = ds.GetRasterBand(1);
double[] mm = new double[2];
band.ComputeRasterMinMax(mm, 0);
- layer.extension.SetHeight(mm[0], mm[1]);
+ layer.terrain.SetHeight(GetMinVal(mm[0]), GetMaxVal(mm[1]));
}
/// <summary>
- /// 鍒涘缓鍦板舰鍥惧眰
+ /// 鑾峰彇鏈�灏忓��
+ /// </summary>
+ private static double GetMinVal(double val, double radix = 1000)
+ {
+ return Convert.ToInt32(Math.Floor(val * radix)) / radix;
+ }
+
+ /// <summary>
+ /// 鑾峰彇鏈�澶у��
+ /// </summary>
+ private static double GetMaxVal(double val, double radix = 1000)
+ {
+ return Convert.ToInt32(Math.Ceiling(val * radix)) / radix;
+ }
+
+ /// <summary>
+ /// 鍒涘缓鍦板舰PNG
/// </summary>
private static void CreateTerrainPng(Dataset ds, Domain.Layer layer, string outPath)
{
@@ -91,15 +123,493 @@
foreach (int[] sizes in layer.terrain.size)
{
string tif = Path.Combine(tempPath, DateTime.Now.Ticks.ToString() + ".tif");
- Resample(ds.GetDescription(), tif, sizes[0], sizes[1]);
- if (!File.Exists(tif))
- {
- continue;
- }
+ //Resample(ds.GetDescription(), tif, sizes[0], sizes[1]);
+ Resample(ds, tif, sizes[0], sizes[1], layer);
+ if (!File.Exists(tif)) continue;
string png = Path.Combine(terrainPath, sizes[0] + "_" + sizes[1] + ".png");
Terrain2Png(layer, tif, png, sizes[0], sizes[1]);
}
+ }
+
+ /// <summary>
+ /// 閲嶉噰鏍�
+ /// </summary>
+ private static void Resample(Dataset ds, string dest, int width, int height, Domain.Layer layer)
+ {
+ // https://blog.51cto.com/u_16099346/6691820
+ //string args = string.Format("-t_srs {0} -ts {1} {2} -r {3} -of {4}", "EPSG:4326", width, height, "bilinear", "GTiff");
+ //string[] options = Gdal.ParseCommandLine(args);
+ string[] options = new string[]
+ {
+ "-t_srs", "EPSG:4326", // layer.terrain.epsg,
+ "-ts", width.ToString(), height.ToString(),
+ "-te", layer.extension.minx.ToString(), layer.extension.miny.ToString(), layer.extension.maxx.ToString(), layer.extension.maxy.ToString(),
+ "-te_srs", "EPSG:4326", // layer.terrain.epsg,
+ "-r", "bilinear",
+ "-of", "GTiff"
+ };
+ GDALWarpAppOptions warpAppOptions = new GDALWarpAppOptions(options);
+
+ Dataset destDs = Gdal.Warp(dest, new Dataset[] { ds }, warpAppOptions, null, null);
+ destDs.Dispose();
+ }
+
+ /// <summary>
+ /// 鍦板舰杞琍NG
+ /// </summary>
+ private static void Terrain2Png(Domain.Layer layer, string tif, string png, int width, int height)
+ {
+ Dataset ds = null;
+ try
+ {
+ ds = Gdal.Open(tif, Access.GA_ReadOnly);
+ if (null == ds || 0 == ds.RasterCount) return;
+
+ OSGeo.GDAL.Band band = ds.GetRasterBand(1);
+ float[] buffer = new float[width * height];
+ band.ReadRaster(0, 0, width, height, buffer, width, height, 0, 0);
+
+ Bitmap image = new Bitmap(width, height);
+ Graphics graphic = Graphics.FromImage(image);
+ graphic.Clear(Color.Transparent); // 濉厖閫忔槑鑹�
+
+ //double perHeight = (layer.terrain.maxHeight - layer.terrain.minHeight) * 100 / 65536;
+ //double differ = layer.terrain.maxHeight - layer.terrain.minHeight;
+ double differ = layer.extension.maxHeight - layer.extension.minHeight, minHeight = layer.extension.minHeight;
+ for (int x = 0; x < width; x++)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = x + y * width;
+ if (float.IsNaN(buffer[offset]) || buffer[offset] < -999 || buffer[offset] < minHeight) continue;
+
+ //int val = Convert.ToInt32((buffer[offset] - layer.terrain.minHeight) * 100 / perHeight);
+ //int val = Convert.ToInt32((buffer[offset] - layer.terrain.minHeight) / differ * 255); // 65535
+
+ int r = 0, g, b;
+ if (buffer[offset] - layer.extension.maxHeight > 0)
+ {
+ g = b = 255;
+ }
+ else
+ {
+ int val = Convert.ToInt32((buffer[offset] - minHeight) / differ * 65535);
+ g = val / 256;
+ b = val % 256;
+ }
+
+ Color color = Color.FromArgb(127, r, g, b);
+ image.SetPixel(x, y, color);
+ }
+ }
+ image.Save(png, System.Drawing.Imaging.ImageFormat.Png);
+ }
+ finally
+ {
+ if (null != ds) ds.Dispose();
+ //if (File.Exists(tif)) File.Delete(tif);
+ }
+ }
+ #endregion
+
+ #region 姘撮潰
+ /// <summary>
+ /// 璁剧疆姘撮潰淇℃伅
+ /// </summary>
+ private static void SetWaterInfo(string waterPath, Domain.Layer layer)
+ {
+ List<string> files = layer.waters.files = GetFiles(waterPath);
+ if (null == files || files.Count == 0) return;
+
+ SetWaterData(layer, files);
+ SetWaterHeight(layer, files);
+ }
+
+ /// <summary>
+ /// 澶勭悊姘撮潰
+ /// </summary>
+ private static void CopeWater(string waterPath, string outPath, Domain.Layer layer)
+ {
+ List<String> files = layer.waters.files;
+ if (files.Count == 0 || files.Count != layer.waters.data.Count) return;
+
+ ProcessWaters(files, outPath, layer);
+ }
+
+ /// <summary>
+ /// 鑾峰彇鏂囦欢
+ /// </summary>
+ private static List<String> GetFiles(string path, string prefix = "")
+ {
+ string[] files = Directory.GetFiles(path, prefix + "*.tif?", SearchOption.TopDirectoryOnly);
+ if (null == files || files.Length == 0) return new List<string>();
+
+ List<string> list = files.ToList();
+ list.Sort();
+
+ return list;
+ }
+
+ /// <summary>
+ /// 璁剧疆姘撮潰鏁版嵁
+ /// </summary>
+ private static void SetWaterData(Domain.Layer layer, List<string> files)
+ {
+ DateTime now = DateTime.Now;
+ long startTicks = new DateTime(1970, 1, 1, 8, 0, 0).Ticks;
+
+ foreach (string file in files)
+ {
+ string fileName = Path.GetFileNameWithoutExtension(file);
+ int hour = Convert.ToInt32(fileName.Substring(0, 2));
+ int minute = Convert.ToInt32(fileName.Substring(2, 2));
+ int second = Convert.ToInt32(fileName.Substring(4, 2));
+
+ DateTime d = new DateTime(now.Year, now.Month, now.Day, hour, minute, second);
+ layer.waters.data.Add((d.Ticks - startTicks) / 10000);
+ }
+ layer.duration.start = layer.waters.data[0];
+ layer.duration.end = layer.waters.data[layer.waters.data.Count - 1];
+ }
+
+ /// <summary>
+ /// 璁剧疆姘撮潰楂樺害
+ /// </summary>
+ private static void SetWaterHeight(Domain.Layer layer, List<string> files)
+ {
+ Parallel.For(0, files.Count, i =>
+ {
+ Dataset ds = null;
+ try
+ {
+ ds = Gdal.Open(files[i], Access.GA_ReadOnly);
+ if (null == ds || 0 == ds.RasterCount || null == ds.GetSpatialRef()) return;
+
+ double[] mm = new double[2];
+ ds.GetRasterBand(1).ComputeRasterMinMax(mm, 0);
+ layer.extension.SetHeight(mm[0], mm[1]);
+ }
+ finally
+ {
+ if (null != ds) ds.Dispose();
+ }
+ });
+ layer.extension.minHeight = GetMinVal(layer.extension.minHeight - 1);
+ layer.extension.maxHeight = GetMaxVal(layer.extension.maxHeight + 1);
+ }
+
+ /// <summary>
+ /// 澶勭悊姘撮潰鏁版嵁
+ /// </summary>
+ private static void ProcessWaters(List<string> files, string outPath, Domain.Layer layer)
+ {
+ Parallel.For(0, files.Count, i =>
+ //for (int i = 0; i < files.Count; i++)
+ {
+ Dataset ds = null;
+ try
+ {
+ ds = Gdal.Open(files[i], Access.GA_ReadOnly);
+ if (null == ds || 0 == ds.RasterCount || null == ds.GetSpatialRef()) return;
+
+ CreateWaterPng(ds, layer, outPath, layer.waters.data[i]);
+ }
+ finally
+ {
+ if (null != ds) ds.Dispose();
+ }
+ });
+ }
+
+ /// <summary>
+ /// 鍒涘缓姘撮潰PNG
+ /// </summary>
+ private static void CreateWaterPng(Dataset ds, Domain.Layer layer, string outPath, long ticks)
+ {
+ string tempPath = Path.Combine(outPath, "temp");
+ if (!Directory.Exists(tempPath)) Directory.CreateDirectory(tempPath);
+ string waterPath = Path.Combine(outPath, "waters", ticks.ToString());
+ if (!Directory.Exists(waterPath)) Directory.CreateDirectory(waterPath);
+
+ foreach (int[] sizes in layer.terrain.size)
+ {
+ string fileName = Path.GetFileNameWithoutExtension(ds.GetDescription()) + "_" + sizes[0] + "_" + sizes[1];
+ string tif = Path.Combine(tempPath, fileName + ".tif");
+ Resample(ds, tif, sizes[0], sizes[1], layer);
+ if (!File.Exists(tif)) continue;
+
+ string png = Path.Combine(waterPath, sizes[0] + "_" + sizes[1] + ".png");
+ Water2Png(layer, tif, png, sizes[0], sizes[1]);
+ }
+ }
+
+ /// <summary>
+ /// 姘撮潰杞琍NG
+ /// </summary>
+ private static void Water2Png(Domain.Layer layer, string tif, string png, int width, int height)
+ {
+ Dataset ds = null;
+ try
+ {
+ ds = Gdal.Open(tif, Access.GA_ReadOnly);
+ if (null == ds || 0 == ds.RasterCount) return;
+
+ Band band = ds.GetRasterBand(1);
+ float[] buffer = new float[width * height];
+ band.ReadRaster(0, 0, width, height, buffer, width, height, 0, 0);
+
+ Bitmap image = new Bitmap(width, height);
+ Graphics graphic = Graphics.FromImage(image);
+ graphic.Clear(Color.Transparent); // 濉厖閫忔槑鑹�
+
+ //double perHeight = (layer.extension.maxHeight - layer.extension.minHeight) * 100 / 65536;
+ double differ = layer.extension.maxHeight - layer.extension.minHeight, minHeight = layer.extension.minHeight;
+ for (int x = 0; x < width; x++)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = x + y * width;
+ if (float.IsNaN(buffer[offset]) || buffer[offset] < -999 || buffer[offset] < minHeight) continue;
+
+ //int val = Convert.ToInt32(buffer[offset] * 100);
+ //int val = Convert.ToInt32((buffer[offset] - layer.extension.minHeight + WaterHeightOffset) * 100 / perHeight);
+ //int r = val / 65536;
+ //int g = (val - r * 65536) / 256;
+ //int b = val % 256;
+
+ int r = 0, g, b;
+ if (buffer[offset] - layer.extension.maxHeight > 0)
+ {
+ g = b = 255;
+ }
+ else
+ {
+ int val = Convert.ToInt32((buffer[offset] - minHeight) / differ * 65535);
+ g = val / 256;
+ b = val % 256;
+ }
+
+ Color color = Color.FromArgb(127, r, g, b);
+ image.SetPixel(x, y, color);
+ }
+ }
+ image.Save(png, System.Drawing.Imaging.ImageFormat.Png);
+ }
+ finally
+ {
+ if (null != ds) ds.Dispose();
+ //if (File.Exists(tif)) File.Delete(tif);
+ }
+ }
+ #endregion
+
+ #region 娴侀�熸祦鍚�
+ /// <summary>
+ /// 澶勭悊娴侀�熸祦鍚�
+ /// </summary>
+ private static void CopeFlow(string flowPath, string outPath, Domain.Layer layer)
+ {
+ List<string> vxFiles = GetFiles(flowPath, "vx");
+ List<string> vyFiles = GetFiles(flowPath, "vy");
+ if (null == vxFiles || null == vyFiles || vxFiles.Count != vyFiles.Count || vxFiles.Count != layer.waters.data.Count) return;
+
+ Parallel.For(0, vxFiles.Count, i =>
+ //for (int i = 0; i < vxFiles.Count; i++)
+ {
+ Dataset vxDs = null, vyDs = null;
+ try
+ {
+ vxDs = Gdal.Open(vxFiles[i], Access.GA_ReadOnly);
+ vyDs = Gdal.Open(vyFiles[i], Access.GA_ReadOnly);
+ if (null == vxDs || 0 == vxDs.RasterCount || null == vxDs.GetSpatialRef() ||
+ null == vyDs || 0 == vyDs.RasterCount || null == vyDs.GetSpatialRef()) return;
+
+ CreateFlowPng(vxDs, vyDs, layer, outPath, layer.waters.data[i]);
+ }
+ finally
+ {
+ if (null != vxDs) vxDs.Dispose();
+ if (null != vyDs) vyDs.Dispose();
+ }
+ });
+ }
+
+ /// <summary>
+ /// 鍒涘缓娴侀�熸祦鍚慞NG
+ /// </summary>
+ private static void CreateFlowPng(Dataset vxDs, Dataset vyDs, Domain.Layer layer, string outPath, long ticks)
+ {
+ string tempPath = Path.Combine(outPath, "temp");
+ if (!Directory.Exists(tempPath)) Directory.CreateDirectory(tempPath);
+ string flowPath = Path.Combine(outPath, "flows", ticks.ToString());
+ if (!Directory.Exists(flowPath)) Directory.CreateDirectory(flowPath);
+
+ foreach (int[] sizes in layer.terrain.size)
+ {
+ string vxName = Path.GetFileNameWithoutExtension(vxDs.GetDescription()) + "_" + sizes[0] + "_" + sizes[1];
+ string vxTif = Path.Combine(tempPath, vxName + ".tif");
+ Resample(vxDs, vxTif, sizes[0], sizes[1], layer);
+
+ string vyName = Path.GetFileNameWithoutExtension(vyDs.GetDescription()) + "_" + sizes[0] + "_" + sizes[1];
+ string vyTif = Path.Combine(tempPath, vyName + ".tif");
+ Resample(vyDs, vyTif, sizes[0], sizes[1], layer);
+
+ if (!File.Exists(vxTif) || !File.Exists(vyTif)) continue;
+
+ string png = Path.Combine(flowPath, sizes[0] + "_" + sizes[1] + ".png");
+ VxyTif2Png(layer, vxTif, vyTif, png, sizes[0], sizes[1]);
+ }
+ }
+
+ /// <summary>
+ /// 娴侀�熸祦鍚慣if鍊艰浆瀛樿嚦Png
+ /// </summary>
+ private static void VxyTif2Png(Domain.Layer layer, string vxTif, string vyTif, string png, int width, int height)
+ {
+ Dataset vxDs = null, vyDs = null;
+ try
+ {
+ vxDs = Gdal.Open(vxTif, Access.GA_ReadOnly);
+ vyDs = Gdal.Open(vyTif, Access.GA_ReadOnly);
+ if (null == vxDs || 0 == vxDs.RasterCount || null == vyDs || 0 == vyDs.RasterCount) return;
+
+ float[] vxBuffer = new float[width * height], vyBuffer = new float[width * height];
+ vxDs.GetRasterBand(1).ReadRaster(0, 0, width, height, vxBuffer, width, height, 0, 0);
+ vyDs.GetRasterBand(1).ReadRaster(0, 0, width, height, vyBuffer, width, height, 0, 0);
+
+ CreateFlowPng(vxBuffer, vyBuffer, png, width, height);
+ }
+ finally
+ {
+ if (null != vxDs) vxDs.Dispose();
+ if (null != vyDs) vyDs.Dispose();
+ //if (File.Exists(vxTif)) File.Delete(vxTif);
+ //if (File.Exists(vyTif)) File.Delete(vyTif);
+ }
+ }
+
+ /// <summary>
+ /// 鍒涘缓娴侀�熸祦鍚慞NG
+ /// </summary>
+ private static void CreateFlowPng(float[] vxBuffer, float[] vyBuffer, string png, int width, int height)
+ {
+ Bitmap image = new Bitmap(width, height);
+ Graphics graphic = Graphics.FromImage(image);
+ graphic.Clear(Color.Transparent); // 濉厖閫忔槑鑹�
+
+ // 鐢� R閫氶亾琛ㄧず锛屾祦鍚戜负褰掍竴鍖栫殑浜岀淮鍚戦噺锛坸,y锛夛紝G閫氶亾琛ㄧず涓� x *255 , B閫氶亾琛ㄧず涓� y * 255
+ for (int x = 0; x < width; x++)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = x + y * width;
+ float fx = GetFloatValue(vxBuffer[offset]);
+ float fy = GetFloatValue(vyBuffer[offset]);
+ if (float.IsNaN(fx) && float.IsNaN(fy) || (fx == 0 && fy == 0)) continue;
+
+ fx = float.IsNaN(fx) ? 0 : fx;
+ fy = float.IsNaN(fy) ? 0 : fy;
+ double dr = Math.Sqrt(Math.Pow(fx, 2) + Math.Pow(fy, 2));
+
+ int r = Convert.ToInt32(dr / 4 * 255);
+ int g = Convert.ToInt32((fx / dr * 0.5 + 0.5) * 255);
+ int b = Convert.ToInt32((fy / dr * 0.5 + 0.5) * 255);
+
+ Color color = Color.FromArgb(127, GetSafeValue(r), GetSafeValue(g), GetSafeValue(b));
+ image.SetPixel(x, y, color);
+ }
+ }
+ image.Save(png, System.Drawing.Imaging.ImageFormat.Png);
+ }
+
+ /// <summary>
+ /// 鑾峰彇Float鍊�
+ /// </summary>
+ private static float GetFloatValue(float val)
+ {
+ return (float.IsNaN(val) || val < -999) ? float.NaN : val;
+ }
+
+ /// <summary>
+ /// 鑾峰彇瀹夊叏鍊�
+ /// </summary>
+ private static int GetSafeValue(int val)
+ {
+ if (val < 0) return 0;
+ if (val > 255) return 255;
+
+ return val;
+ }
+ #endregion
+
+ #region 鍏冩暟鎹�
+ /// <summary>
+ /// 澶勭悊鍏冩暟鎹�
+ /// </summary>
+ private static void CopeLayerJson(string outPath, Domain.Layer layer)
+ {
+ if (null == layer) return;
+
+ String json = JsonConvert.SerializeObject(layer);
+
+ string filePath = Path.Combine(outPath, "layer.json");
+ using (StreamWriter sw = new StreamWriter(filePath))
+ {
+ sw.Write(json);
+ }
+ }
+ #endregion
+
+ #region 鏆傛椂涓嶇敤
+ /// <summary>
+ /// 璁剧疆鍦板舰淇℃伅
+ /// </summary>
+ private static void SetTerrainInfo(Dataset ds, string outPath, Domain.Layer layer)
+ {
+ string tempPath = Path.Combine(outPath, "temp");
+ if (!Directory.Exists(tempPath)) Directory.CreateDirectory(tempPath);
+
+ string tif = Path.Combine(tempPath, Path.GetFileNameWithoutExtension(ds.GetDescription()) + ".tif");
+ Resample(ds, tif);
+ if (!File.Exists(tif)) throw new Exception("楂樼▼鏂囦欢閲嶆姇褰卞け璐ワ紒");
+
+ Dataset tifDS = null;
+ try
+ {
+ tifDS = Gdal.Open(tif, Access.GA_ReadOnly);
+ if (null == tifDS || 0 == tifDS.RasterCount || null == tifDS.GetSpatialRef()) return;
+
+ double[] transform = new double[6];
+ tifDS.GetGeoTransform(transform);
+ double minx = transform[0];
+ double miny = transform[3] - tifDS.RasterYSize * transform[1];
+ double maxx = transform[0] + (tifDS.RasterYSize * transform[1]);
+ double maxy = transform[3];
+
+ layer.extension = new Extension(minx, miny, maxx, maxy, double.MaxValue, double.MinValue);
+
+ Band band = tifDS.GetRasterBand(1);
+ double[] mm = new double[2];
+ band.ComputeRasterMinMax(mm, 0);
+ layer.terrain.SetHeight(GetMinVal(mm[0]), GetMaxVal(mm[1]));
+ }
+ finally
+ {
+ if (null != tifDS) tifDS.Dispose();
+ }
+ }
+
+ /// <summary>
+ /// 閲嶉噰鏍�
+ /// </summary>
+ private static void Resample(Dataset ds, string dest)
+ {
+ string[] options = new string[] { "-t_srs", "EPSG:4326", "-r", "bilinear", "-of", "GTiff" };
+ GDALWarpAppOptions warpAppOptions = new GDALWarpAppOptions(options);
+
+ Dataset destDs = Gdal.Warp(dest, new Dataset[] { ds }, warpAppOptions, null, null);
+ destDs.Dispose();
}
/// <summary>
@@ -151,207 +661,6 @@
if (p != null) p.Close();
}
return str;
- }
-
- /// <summary>
- /// Tif鍊艰浆瀛樿嚦Png
- /// </summary>
- private static void Terrain2Png(Domain.Layer layer, string tif, string png, int width, int height)
- {
- Dataset ds = null;
- try
- {
- ds = Gdal.Open(tif, Access.GA_ReadOnly);
- if (null == ds || 0 == ds.RasterCount) return;
-
- OSGeo.GDAL.Band band = ds.GetRasterBand(1);
- float[] buffer = new float[width * height];
- band.ReadRaster(0, 0, width, height, buffer, width, height, 0, 0);
-
- Bitmap image = new Bitmap(width, height);
- Graphics graphic = Graphics.FromImage(image);
- graphic.Clear(Color.Transparent); // 濉厖閫忔槑鑹�
-
- //double perHeight = (layer.extension.maxHeight - layer.extension.minHeight) * 100 / 65536;
- //int val = Convert.ToInt32(buffer[x * y]* 100); //Convert.ToInt32((buffer[x * y] - layer.extension.minHeight) * 100);
- //int val = Convert.ToInt32((buffer[x * y] - layer.extension.minHeight) * 100 / perHeight);
-
- for (int x = 0; x < width; x++)
- {
- for (int y = 0; y < height; y++)
- {
- int offset = x + y * height;
- if (float.IsNaN(buffer[offset]) || buffer[offset] == -9999)
- {
- //image.SetPixel(x, y, Color.Transparent);
- continue;
- }
-
- int val = Convert.ToInt32(buffer[offset] * 100);
- int r = val / 65536;
- int g = (val - r * 65536) / 256;
- int b = val % 256;
-
- Color color = Color.FromArgb(127, r, g, b);
- image.SetPixel(x, y, color);
- }
- }
-
- image.Save(png, System.Drawing.Imaging.ImageFormat.Png);
- }
- finally
- {
- if (null != ds) ds.Dispose();
- if (File.Exists(tif)) File.Delete(tif);
- }
- }
-
- /// <summary>
- /// 澶勭悊姘撮潰
- /// </summary>
- private static void CopeWater(string waterPath, string outPath, Domain.Layer layer)
- {
- List<string> files = GetFiles(waterPath);
- if (null == files || files.Count == 0) return;
-
- SetWaterData(layer, files);
-
- /*for (int i = 0, c = files.Count; i < c; i++)
- {
- Dataset ds = null;
- try
- {
- ds = Gdal.Open(files[i], Access.GA_ReadOnly);
- if (null == ds || 0 == ds.RasterCount || null == ds.GetSpatialRef()) continue;
-
- CreateWaterPng(ds, layer, outPath, layer.waters.data[i]);
- }
- finally
- {
- if (null != ds) ds.Dispose();
- }
- }*/
- Parallel.For(0, files.Count, i =>
- {
- Dataset ds = null;
- try
- {
- ds = Gdal.Open(files[i], Access.GA_ReadOnly);
- if (null == ds || 0 == ds.RasterCount || null == ds.GetSpatialRef()) return;
-
- CreateWaterPng(ds, layer, outPath, layer.waters.data[i]);
- }
- finally
- {
- if (null != ds) ds.Dispose();
- }
- });
- }
-
- /// <summary>
- /// 鍒涘缓鍦板舰鍥惧眰
- /// </summary>
- private static void CreateWaterPng(Dataset ds, Domain.Layer layer, string outPath, long ticks)
- {
- string tempPath = Path.Combine(outPath, "temp");
- if (!Directory.Exists(tempPath)) Directory.CreateDirectory(tempPath);
- string waterPath = Path.Combine(outPath, "waters", ticks.ToString());
- if (!Directory.Exists(waterPath)) Directory.CreateDirectory(waterPath);
-
- foreach (int[] sizes in layer.terrain.size)
- {
- string fileName = Path.GetFileNameWithoutExtension(ds.GetDescription()) + "_" + sizes[0] + "_" + sizes[1];
- string tif = Path.Combine(tempPath, fileName + ".tif");
- Resample(ds.GetDescription(), tif, sizes[0], sizes[1]);
- if (!File.Exists(tif))
- {
- continue;
- }
-
- string png = Path.Combine(waterPath, sizes[0] + "_" + sizes[1] + ".png");
- Terrain2Png(layer, tif, png, sizes[0], sizes[1]);
- }
- }
-
- /// <summary>
- /// 鑾峰彇鏂囦欢
- /// </summary>
- private static List<String> GetFiles(string path)
- {
- string[] files = Directory.GetFiles(path, "*.tif?", SearchOption.TopDirectoryOnly);
- if (null == files || files.Length == 0) return null;
-
- List<string> list = files.ToList();
- list.Sort();
-
- return list;
- }
-
- /// <summary>
- /// 璁剧疆姘撮潰鏁版嵁
- /// </summary>
- private static void SetWaterData(Domain.Layer layer, List<string> files)
- {
- DateTime now = DateTime.Now;
- long startTicks = new DateTime(1970, 1, 1, 8, 0, 0).Ticks;
-
- foreach (string file in files)
- {
- string fileName = Path.GetFileNameWithoutExtension(file);
- int hour = Convert.ToInt32(fileName.Substring(0, 2));
- int minute = Convert.ToInt32(fileName.Substring(2, 2));
- int second = Convert.ToInt32(fileName.Substring(4, 2));
-
- DateTime d = new DateTime(now.Year, now.Month, now.Day, hour, minute, second);
- layer.waters.data.Add((d.Ticks - startTicks) / 10000);
- }
- }
-
- /// <summary>
- /// 澶勭悊娴侀�熸祦鍚�
- /// </summary>
- private static void CopeFlow(string flowPath, string outPath, Domain.Layer layer)
- {
-
- }
-
- /// <summary>
- /// 澶勭悊鍏冩暟鎹�
- /// </summary>
- private static void CopeLayerJson(string outPath, Domain.Layer layer)
- {
- if (null == layer) return;
-
- String json = JsonConvert.SerializeObject(layer);
-
- string filePath = Path.Combine(outPath, "layer.json");
- using (StreamWriter sw = new StreamWriter(filePath))
- {
- sw.Write(json);
- }
- }
-
- #region 鏆傛椂涓嶇敤
- /// <summary>
- /// 閲嶉噰鏍� *
- /// </summary>
- private static void Resample(Dataset ds, string dest, int width, int height)
- {
- // 璁剧疆Warp鐨勯�夐」锛歨ttps://blog.csdn.net/qq_43210879/article/details/121350561
- string[] options = new string[] {
- "format=GTiff",
- "width=" + width,
- "height=" + height,
- "dstSRS=EPSG:4326"
- };
-
- OSGeo.GDAL.Driver driver = Gdal.GetDriverByName("GTiff");
- Dataset destDs = driver.Create(dest, width, height, ds.RasterCount, ds.GetRasterBand(1).DataType, null);
-
- GDALWarpAppOptions warpAppOptions = new GDALWarpAppOptions(options);
- Gdal.Warp(destDs, new Dataset[] { ds }, warpAppOptions, null, null);
-
- destDs.Dispose();
}
#endregion
}
--
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