1

13693261870

2024-07-24 a8028c5fe78d8e9a05f171407ac129c4fbd65e87

 SimuTools/Tools/Handle.cs

@@ -15,13 +15,19 @@
{
    public class Handle
    {
        #region 成员变量
        public static readonly int MAX = 256 * 256;

        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>
        /// 运行
@@ -38,7 +44,7 @@

            CopeTerrain(terrainFile, outPath, layer);
            CopeWater(waterPath, outPath, layer);
            //CopeFlow(flowPath, outPath, layer);
            CopeFlow(flowPath, outPath, layer);
            CopeLayerJson(outPath, layer);

            if (Directory.Exists(temp)) Directory.Delete(temp, true);
@@ -70,9 +76,16 @@
        /// </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.MaxValue, double.MinValue);
            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);

            Band band = ds.GetRasterBand(1);
            double[] mm = new double[2];
@@ -83,17 +96,17 @@
        /// <summary>
        /// 获取最小值
        /// </summary>
        private static double GetMinVal(double val)
        private static double GetMinVal(double val, double radix = 1000)
        {
            return Convert.ToInt32(Math.Floor(val * 1000)) / 1000.0;
            return Convert.ToInt32(Math.Floor(val * radix)) / radix;
        }

        /// <summary>
        /// 获取最大值
        /// </summary>
        private static double GetMaxVal(double val)
        private static double GetMaxVal(double val, double radix = 1000)
        {
            return Convert.ToInt32(Math.Ceiling(val * 1000)) / 1000.0;
            return Convert.ToInt32(Math.Ceiling(val * radix)) / radix;
        }

        /// <summary>
@@ -110,7 +123,7 @@
            {
                string tif = Path.Combine(tempPath, DateTime.Now.Ticks.ToString() + ".tif");
                //Resample(ds.GetDescription(), tif, sizes[0], sizes[1]);
                Resample(ds, 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");
@@ -121,78 +134,24 @@
        /// <summary>
        /// 重采样
        /// </summary>
        private static void Resample(Dataset ds, string dest, int width, int height)
        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",
                "-ts",
                width.ToString(),
                height.ToString(),
                "-r",
                "bilinear",
                "-of",
                "GTiff"
                "-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>
        /// 重采样 *
        /// </summary>
        private static void Resample(string source, string dest, int width, int height)
        {
            // https://blog.51cto.com/u_16099346/6691820
            string cmd = string.Format("{0}gdalwarp.exe -t_srs {1} -ts {2} {3} -r {4} -of GTiff \"{5}\" \"{6}\"", GdalPath, "EPSG:4326", width, height, "bilinear", source, dest);
            string err = ExecExe(cmd);
        }

        /// <summary>
        /// 执行命令
        /// </summary>
        public static string ExecExe(string cmd)
        {
            string str = null;
            Process p = null;
            try
            {
                p = new Process();
                p.StartInfo.FileName = "cmd.exe";
                p.StartInfo.UseShellExecute = false;
                p.StartInfo.CreateNoWindow = true;
                p.StartInfo.RedirectStandardInput = true;
                p.StartInfo.RedirectStandardOutput = true;
                p.StartInfo.RedirectStandardError = true;
                p.Start();

                StreamWriter si = p.StandardInput;
                StreamReader se = p.StandardError;

                si.AutoFlush = true;
                si.WriteLine(cmd);
                si.WriteLine("exit");

                str = se.ReadToEnd();
                se.Close();
                si.Close();
            }
            catch (Exception ex)
            {
                LogOut.Error(ex.Message + "\r\n" + ex.StackTrace);
                str = ex.Message;
            }
            finally
            {
                if (p != null) p.Close();
            }
            return str;
        }

        /// <summary>
@@ -214,7 +173,8 @@
                Graphics graphic = Graphics.FromImage(image);
                graphic.Clear(Color.Transparent); // 填充透明色

                double perHeight = (layer.terrain.maxHeight - layer.terrain.minHeight) * 100 / 65536;
                //double perHeight = (layer.terrain.maxHeight - layer.terrain.minHeight) * 100 / 65536;
                double differ = layer.terrain.maxHeight - layer.terrain.minHeight;
                for (int x = 0; x < width; x++)
                {
                    for (int y = 0; y < height; y++)
@@ -222,10 +182,10 @@
                        int offset = x + y * width;
                        if (float.IsNaN(buffer[offset]) || buffer[offset] < -999) continue;

                        //int val = Convert.ToInt32(buffer[offset] * 100);
                        int val = Convert.ToInt32((buffer[offset] - layer.terrain.minHeight) * 100 / perHeight);
                        int r = val / 65536;
                        int g = (val - r * 65536) / 256;
                        //int val = Convert.ToInt32((buffer[offset] - layer.terrain.minHeight) * 100 / perHeight);
                        int val = Convert.ToInt32((buffer[offset] - layer.terrain.minHeight) / differ * 65536);
                        int r = 0;
                        int g = val / 256;
                        int b = val % 256;

                        Color color = Color.FromArgb(127, r, g, b);
@@ -237,7 +197,7 @@
            finally
            {
                if (null != ds) ds.Dispose();
                if (File.Exists(tif)) File.Delete(tif);
                //if (File.Exists(tif)) File.Delete(tif);
            }
        }
        #endregion
@@ -355,7 +315,7 @@
            {
                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]);
                Resample(ds, tif, sizes[0], sizes[1], layer);
                if (!File.Exists(tif)) continue;

                string png = Path.Combine(waterPath, sizes[0] + "_" + sizes[1] + ".png");
@@ -374,7 +334,7 @@
                ds = Gdal.Open(tif, Access.GA_ReadOnly);
                if (null == ds || 0 == ds.RasterCount) return;

                OSGeo.GDAL.Band band = ds.GetRasterBand(1);
                Band band = ds.GetRasterBand(1);
                float[] buffer = new float[width * height];
                band.ReadRaster(0, 0, width, height, buffer, width, height, 0, 0);

@@ -405,7 +365,7 @@
            finally
            {
                if (null != ds) ds.Dispose();
                if (File.Exists(tif)) File.Delete(tif);
                //if (File.Exists(tif)) File.Delete(tif);
            }
        }
        #endregion
@@ -420,8 +380,8 @@
            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++)
            Parallel.For(0, vxFiles.Count, i =>
            //for (int i = 0; i < vxFiles.Count; i++)
            {
                Dataset vxDs = null, vyDs = null;
                try
@@ -438,7 +398,7 @@
                    if (null != vxDs) vxDs.Dispose();
                    if (null != vyDs) vyDs.Dispose();
                }
            }//);
            });
        }

        /// <summary>
@@ -455,11 +415,11 @@
            {
                string vxName = Path.GetFileNameWithoutExtension(vxDs.GetDescription()) + "_" + sizes[0] + "_" + sizes[1];
                string vxTif = Path.Combine(tempPath, vxName + ".tif");
                Resample(vxDs.GetDescription(), vxTif, sizes[0], sizes[1]);
                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.GetDescription(), vyTif, sizes[0], sizes[1]);
                Resample(vyDs, vyTif, sizes[0], sizes[1], layer);

                if (!File.Exists(vxTif) || !File.Exists(vyTif)) continue;

@@ -484,29 +444,21 @@
                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);

                double[] vxMm = new double[2];
                vxDs.GetRasterBand(1).ComputeRasterMinMax(vxMm, 0);
                double[] vyMm = new double[2];
                vyDs.GetRasterBand(1).ComputeRasterMinMax(vyMm, 0);
                double min = vxMm[0] < vyMm[0] ? vxMm[0] : vyMm[0];
                double max = vxMm[1] > vyMm[1] ? vxMm[1] : vyMm[1];
                double perHeight = (max - min) / 255;

                CreateFlowPng(vxBuffer, vyBuffer, perHeight, png, width, height);
                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);
                //if (File.Exists(vxTif)) File.Delete(vxTif);
                //if (File.Exists(vyTif)) File.Delete(vyTif);
            }
        }

        /// <summary>
        /// 创建流速流向PNG
        /// </summary>
        private static void CreateFlowPng(float[] vxBuffer, float[] vyBuffer, double perHeight, string png, int width, int height)
        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);
@@ -520,20 +472,17 @@
                    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;

                    double dv = GetXyValue(fx, fy);
                    double dx = float.IsNaN(fx) ? 0 : fx * 0.5 + 0.5;
                    double dy = float.IsNaN(fy) ? 0 : fy * 0.5 + 0.5;
                    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(dv * 255);
                    if (r > 255)
                    {
                        r = 255;
                    }
                    int g = Convert.ToInt32(dx * 255);
                    int b = Convert.ToInt32(dy * 255);
                    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, r, g, b);
                    Color color = Color.FromArgb(127, GetSafeValue(r), GetSafeValue(g), GetSafeValue(b));
                    image.SetPixel(x, y, color);
                }
            }
@@ -545,33 +494,18 @@
        /// </summary>
        private static float GetFloatValue(float val)
        {
            //return (float.IsNaN(val) || val < -999) ? float.NaN : val;
            if (float.IsNaN(val) || val < -999) return float.NaN;
            //if (val > 1) return 1;
            //if (val < -1) return -1;

            return val;
            return (float.IsNaN(val) || val < -999) ? float.NaN : val;
        }

        /// <summary>
        /// 获取XY值
        /// 获取安全值
        /// </summary>
        private static double GetXyValue(float fx, float fy)
        private static int GetSafeValue(int val)
        {
            if (float.IsNaN(fx) && float.IsNaN(fy))
            {
                return 0;
            }
            if (float.IsNaN(fx))
            {
                return Math.Abs(fy);
            }
            if (float.IsNaN(fy))
            {
                return Math.Abs(fx);
            }
            if (val < 0) return 0;
            if (val > 255) return 255;

            return Math.Sqrt(Math.Pow(fx, 2) + Math.Pow(fy, 2));
            return val;
        }
        #endregion

@@ -592,5 +526,108 @@
            }
        }
        #endregion

        #region 暂时不用
        /// <summary>
        /// 设置地形信息
        /// </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("高程文件重投影失败！");

            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>
        /// 重采样
        /// </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>
        /// 重采样
        /// </summary>
        private static void Resample(string source, string dest, int width, int height)
        {
            // https://blog.51cto.com/u_16099346/6691820
            string cmd = string.Format("{0}gdalwarp.exe -t_srs {1} -ts {2} {3} -r {4} -of GTiff \"{5}\" \"{6}\"", GdalPath, "EPSG:4326", width, height, "bilinear", source, dest);
            string err = ExecExe(cmd);
        }

        /// <summary>
        /// 执行命令
        /// </summary>
        public static string ExecExe(string cmd)
        {
            string str = null;
            Process p = null;
            try
            {
                p = new Process();
                p.StartInfo.FileName = "cmd.exe";
                p.StartInfo.UseShellExecute = false;
                p.StartInfo.CreateNoWindow = true;
                p.StartInfo.RedirectStandardInput = true;
                p.StartInfo.RedirectStandardOutput = true;
                p.StartInfo.RedirectStandardError = true;
                p.Start();

                StreamWriter si = p.StandardInput;
                StreamReader se = p.StandardError;

                si.AutoFlush = true;
                si.WriteLine(cmd);
                si.WriteLine("exit");

                str = se.ReadToEnd();
                se.Close();
                si.Close();
            }
            catch (Exception ex)
            {
                LogOut.Error(ex.Message + "\r\n" + ex.StackTrace);
                str = ex.Message;
            }
            finally
            {
                if (p != null) p.Close();
            }
            return str;
        }
        #endregion
    }
}