Revize 23e9ca21

re #8935 Program that can crop textures and outputs cropped versions + coordinates in original + coordinates of centroid in output image

TextureEditing/.gitignore

@@ +1 @@
+
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+# End of https://www.toptal.com/developers/gitignore/api/visualstudio

TextureEditing/MapEditor.cs

@@ +1 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Text;
+
+namespace TextureEditing
+{
+    /// <summary>
+    /// Edits input pngs
+    /// </summary>
+    class MapEditor
+    {
+        /// <summary> Path to data </summary>
+        string dataPath;
+        /// <summary> Path to output folder </summary>
+        string outPath;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="dataPath">Path to data</param>
+        /// <param name="outPath">Path to output folder</param>
+        public MapEditor(string dataPath, string outPath)
+        {
+            this.dataPath = dataPath;
+            this.outPath = outPath;
+        }
+
+        /// <summary>
+        /// Crop all pngs from input data folder
+        /// </summary>
+        public void EditAllPngs()
+        {
+            // does dataPath folder exist
+            if (!Directory.Exists(dataPath))
+            {
+                Console.WriteLine("Path does not exist");
+                return;
+            }
+
+            List<PngEdited> cropped = new List<PngEdited>();
+
+            // for all files
+            string[] files = Directory.GetFiles(dataPath);
+            foreach (string f in files)
+            {
+                Console.WriteLine("Processing file " + f);
+                Bitmap img = new Bitmap(f);
+                var newpng = Crop(img);
+                newpng.name = Path.GetFileName(f);
+                PositionInOriginal(img, newpng);
+                PositionOfCentroid(newpng);
+                cropped.Add(newpng);
+
+                newpng.Save(outPath + "/" + newpng.name);
+            }
+            SaveTxt(cropped);
+
+            /*
+            int c = 0;
+            foreach (PngEdited p in cropped)
+            {
+                c++;
+                TestImage(p, c);
+            }
+            */
+        }
+
+        /// <summary>
+        /// Testing method
+        /// Prints out cropped image positioned back to original map and image with visible centroid
+        /// </summary>
+        /// <param name="pngEdited">Output image</param>
+        /// <param name="i">Number of image</param>
+        private void TestImage(PngEdited pngEdited, int i)
+        {
+            Bitmap png = new Bitmap("./bory-buildings.png");
+            Bitmap newpng = pngEdited.png;
+
+            Bitmap centroid = new Bitmap(20, 20);
+            for (int h = 0; h < centroid.Height; h++)
+                for (int w = 0; w < centroid.Width; w++)
+                    centroid.SetPixel(w, h, Color.Red);
+
+
+            int xPos = (int)((newpng.Width / 100.0f) * pngEdited.xCentr) - 10;
+            int yPos = (int)((newpng.Height / 100.0f) * (100 - pngEdited.yCentr)) - 10;
+
+            Bitmap centroidTest = new Bitmap(newpng.Width, newpng.Height);
+            using (Graphics g = Graphics.FromImage(centroidTest))
+            {
+                g.DrawImage(newpng, new Rectangle(0, 0, newpng.Width, newpng.Height), new Rectangle(0, 0, newpng.Width, newpng.Height), GraphicsUnit.Pixel);
+                g.DrawImage(centroid, new Rectangle(xPos, yPos, 20, 20), new Rectangle(0, 0, centroidTest.Width, centroidTest.Height), GraphicsUnit.Pixel);
+
+                centroidTest.Save($"testCentroidOut{i}.png", ImageFormat.Png);
+            }
+
+            for (int h = 0; h < newpng.Height; h++)
+                for (int w = 0; w < newpng.Width; w++)
+                {
+                    if (newpng.GetPixel(w, h).A != 0)
+                    {
+                        newpng.SetPixel(w, h, Color.Red);
+                    }
+                }
+
+            xPos = (int) ((png.Width / 100.0f) * pngEdited.xPerc);
+            yPos = (int)((png.Height / 100.0f) * (100-pngEdited.yPerc)) - newpng.Height;
+
+            using (Graphics g = Graphics.FromImage(png))
+            {
+                g.DrawImage(newpng, new Rectangle(xPos, yPos, newpng.Width, newpng.Height), new Rectangle(0, 0, newpng.Width, newpng.Height), GraphicsUnit.Pixel);
+                png.Save($"testOut{i}.png", ImageFormat.Png);
+            }
+        }
+
+        /// <summary>
+        /// Compute the position of centroid. Coordinates are computed in % from bottom left corner of cropped png
+        /// </summary>
+        /// <param name="newpng">Output png in instance PngEdited</param>
+        private void PositionOfCentroid(PngEdited newpng)
+        {
+            // from all non transparent pixels
+            int coordY = 0, coordX = 0;
+            int count = 0;
+            for (int h = 0; h < newpng.png.Height; h++)
+                for (int w = 0; w < newpng.png.Width; w++)
+                {
+                    if (newpng.png.GetPixel(w, h).A != 0 )
+                    {
+                        count++;
+                        coordY += h;
+                        coordX += w;
+                    }
+                }
+
+            // coordinates
+            newpng.xCentr = coordX / count;
+            newpng.yCentr = coordY / count;
+
+            // to %
+            float onePercX = newpng.png.Width / 100.0f;
+            float percX = newpng.xCentr / onePercX;
+            newpng.xCentr = percX;
+
+            float onePercY = newpng.png.Height / 100.0f;
+            float percY = 100 - (newpng.yCentr / onePercY);
+            newpng.yCentr = percY;
+        }
+
+        /// <summary>
+        /// Find the position of cropped image in original. Coordinates of bottom left corner are computed in % from bottom left corner of original
+        /// </summary>
+        /// <param name="img">Original</param>
+        /// <param name="newpng">New image</param>
+        private void PositionInOriginal(Bitmap img, PngEdited newpng)
+        {
+            // left bottom corner
+            int xLeft = newpng.xStart;
+            int yLeft = newpng.yEnd;
+
+            // compute percentages
+            float onePercX = img.Width / 100.0f;
+            float percX = xLeft / onePercX;
+            newpng.xPerc = percX;
+
+            float onePercY = img.Height / 100.0f;
+            float percY = 100 - (yLeft / onePercY);
+            newpng.yPerc = percY;
+        }
+
+        /// <summary>
+        /// Save information about output files as csv
+        /// [name];[x coordinate of bottom left corner];[y coordinate of bottom left corner];[x coordinate of centroid];[y coordinate of centroid]
+        /// Coordinates of bottom left corner are computed in % from bottom left corner of original, coordinates of centroid are computed in % from bottom left corner of output png
+        /// </summary>
+        /// <param name="cropped"></param>
+        private void SaveTxt(List<PngEdited> cropped)
+        {
+            string res = "";
+
+            foreach (PngEdited png in cropped)
+                res += $"{png.name};{png.xPerc};{png.yPerc};{png.xCentr};{png.yCentr}\n";
+
+            File.WriteAllBytes(outPath + "/output.csv", Encoding.ASCII.GetBytes(res));
+        }
+
+        /// <summary>
+        /// Crop image so it does not contain any transparent padding
+        /// </summary>
+        /// <param name="img">Original image</param>
+        /// <returns>Cropped image as PngEdited instance</returns>
+        private PngEdited Crop(Bitmap img)
+        {
+            PngEdited res = new PngEdited();
+
+            int xFrom = img.Width, xTo = 0;
+            int yFrom = img.Height, yTo = 0;
+            
+            // find start + end of x and y
+            for (int h = 0; h < img.Height; h++)
+                for (int w = 0; w < img.Width; w++)
+                {
+                    if (img.GetPixel(w, h).A != 0 && xFrom > w)
+                        xFrom = w;
+
+                    if (img.GetPixel(w, h).A != 0 && xTo < w)
+                        xTo = w;
+
+                    if (img.GetPixel(w, h).A != 0 && yFrom > h)
+                        yFrom = h;
+
+                    if (img.GetPixel(w, h).A != 0 && yTo < h)
+                        yTo = h;
+                }
+
+
+            // crop
+            Bitmap cropped = new Bitmap(xTo - xFrom + 1, yTo - yFrom + 1);
+            using (Graphics g = Graphics.FromImage(cropped))
+            {
+                g.DrawImage(img, new Rectangle(0, 0, cropped.Width, cropped.Height), new Rectangle(xFrom, yFrom, cropped.Width, cropped.Height), GraphicsUnit.Pixel);
+                res.png = cropped;
+            }
+
+            res.xStart = xFrom;
+            res.xEnd = xTo;
+            res.yStart = yFrom;
+            res.yEnd = yTo;
+
+            return res;
+        }
+
+    }
+}

TextureEditing/PngEdited.cs

@@ +1 @@
+using System.Drawing;
+using System.Drawing.Imaging;
+
+namespace TextureEditing
+{
+    /// <summary>
+    /// Output png carrier
+    /// </summary>
+    class PngEdited
+    {
+        /// <summary> Name of png </summary>
+        public string name;
+
+        /// <summary> Image </summary>
+        public Bitmap png;
+
+        /// <summary> Coordinates of max and min x in original image </summary>
+        public int xStart, xEnd;
+        /// <summary> Coordinates of max and min y in original image </summary>
+        public int yStart, yEnd;
+
+        /// <summary> Coordinates of bottom left corner in % from bottom left corner of original </summary>
+        public float xPerc, yPerc;
+        /// <summary> Coordinates of centroid in % from bottom left corner of cropped image </summary>
+        public float xCentr, yCentr;
+
+        /// <summary>
+        /// Save as png file
+        /// </summary>
+        /// <param name="outPath">Path to output file</param>
+        internal void Save(string outPath)
+        {
+            png.Save(outPath, ImageFormat.Png);
+        }
+    }
+}

TextureEditing/Program.cs

@@ +1 @@
+using System;
+using System.Globalization;
+
+namespace TextureEditing
+{
+    /// <summary>
+    /// Main class
+    /// </summary>
+    class Program
+    {
+        /// <summary>
+        /// Main method
+        /// - needs one argument - path to folder with input files
+        /// </summary>
+        /// <param name="args">args</param>
+        static void Main(string[] args)
+        {
+            CultureInfo.CurrentCulture = new CultureInfo("en-US", false);
+
+            if (args.Length < 1)
+            {
+                Console.WriteLine("Insufficient arguments, input path to folder with data");
+                return;
+            }
+
+            string dataPath = args[0];
+
+            MapEditor me = new MapEditor(dataPath, "./output");
+            me.EditAllPngs();
+
+            Console.WriteLine("Done.");
+        }
+    }
+}

TextureEditing/Properties/launchSettings.json

@@ +1 @@
+{
+  "profiles": {
+    "TextureEditing": {
+      "commandName": "Project",
+      "commandLineArgs": "./data"
+    }
+  }
+}

TextureEditing/TextureEditing.csproj

@@ +1 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.Drawing.Common" Version="5.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="data\CIV.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\FAV.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\FDU.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\FEL.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\FST+FEK.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\LIB.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\MENZA.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="data\REK.png">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

TextureEditing/TextureEditing.sln

@@ +1 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31105.61
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TextureEditing", "TextureEditing.csproj", "{5DD75463-80DC-42AC-871C-2C5DF4F347CD}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5DD75463-80DC-42AC-871C-2C5DF4F347CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5DD75463-80DC-42AC-871C-2C5DF4F347CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5DD75463-80DC-42AC-871C-2C5DF4F347CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5DD75463-80DC-42AC-871C-2C5DF4F347CD}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {34D2AE75-489A-43B1-9FB3-6649846B7046}
+	EndGlobalSection
+EndGlobal