├── .gitignore ├── LICENSE ├── README.md ├── Vtk2Obj.sln └── Vtk2Obj ├── App.config ├── CompressedObjWriter.cs ├── Program.cs ├── Properties └── AssemblyInfo.cs ├── SignificantDigits.cs ├── Vtk2Obj.csproj └── format.txt /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.suo 8 | *.user 9 | *.userosscache 10 | *.sln.docstates 11 | 12 | # User-specific files (MonoDevelop/Xamarin Studio) 13 | *.userprefs 14 | 15 | # Build results 16 | [Dd]ebug/ 17 | [Dd]ebugPublic/ 18 | [Rr]elease/ 19 | [Rr]eleases/ 20 | x64/ 21 | x86/ 22 | bld/ 23 | [Bb]in/ 24 | [Oo]bj/ 25 | [Ll]og/ 26 | 27 | # Visual Studio 2015 cache/options directory 28 | .vs/ 29 | # Uncomment if you have tasks that create the project's static files in wwwroot 30 | #wwwroot/ 31 | 32 | # MSTest test Results 33 | [Tt]est[Rr]esult*/ 34 | [Bb]uild[Ll]og.* 35 | 36 | # NUNIT 37 | *.VisualState.xml 38 | TestResult.xml 39 | 40 | # Build Results of an ATL Project 41 | [Dd]ebugPS/ 42 | [Rr]eleasePS/ 43 | dlldata.c 44 | 45 | # .NET Core 46 | project.lock.json 47 | project.fragment.lock.json 48 | artifacts/ 49 | **/Properties/launchSettings.json 50 | 51 | *_i.c 52 | *_p.c 53 | *_i.h 54 | *.ilk 55 | *.meta 56 | *.obj 57 | *.pch 58 | *.pdb 59 | *.pgc 60 | *.pgd 61 | *.rsp 62 | *.sbr 63 | *.tlb 64 | *.tli 65 | *.tlh 66 | *.tmp 67 | *.tmp_proj 68 | *.log 69 | *.vspscc 70 | *.vssscc 71 | .builds 72 | *.pidb 73 | *.svclog 74 | *.scc 75 | 76 | # Chutzpah Test files 77 | _Chutzpah* 78 | 79 | # Visual C++ cache files 80 | ipch/ 81 | *.aps 82 | *.ncb 83 | *.opendb 84 | *.opensdf 85 | *.sdf 86 | *.cachefile 87 | *.VC.db 88 | *.VC.VC.opendb 89 | 90 | # Visual Studio profiler 91 | *.psess 92 | *.vsp 93 | *.vspx 94 | *.sap 95 | 96 | # TFS 2012 Local Workspace 97 | $tf/ 98 | 99 | # Guidance Automation Toolkit 100 | *.gpState 101 | 102 | # ReSharper is a .NET coding add-in 103 | _ReSharper*/ 104 | *.[Rr]e[Ss]harper 105 | *.DotSettings.user 106 | 107 | # JustCode is a .NET coding add-in 108 | .JustCode 109 | 110 | # TeamCity is a build add-in 111 | _TeamCity* 112 | 113 | # DotCover is a Code Coverage Tool 114 | *.dotCover 115 | 116 | # Visual Studio code coverage results 117 | *.coverage 118 | *.coveragexml 119 | 120 | # NCrunch 121 | _NCrunch_* 122 | .*crunch*.local.xml 123 | nCrunchTemp_* 124 | 125 | # MightyMoose 126 | *.mm.* 127 | AutoTest.Net/ 128 | 129 | # Web workbench (sass) 130 | .sass-cache/ 131 | 132 | # Installshield output folder 133 | [Ee]xpress/ 134 | 135 | # DocProject is a documentation generator add-in 136 | DocProject/buildhelp/ 137 | DocProject/Help/*.HxT 138 | DocProject/Help/*.HxC 139 | DocProject/Help/*.hhc 140 | DocProject/Help/*.hhk 141 | DocProject/Help/*.hhp 142 | DocProject/Help/Html2 143 | DocProject/Help/html 144 | 145 | # Click-Once directory 146 | publish/ 147 | 148 | # Publish Web Output 149 | *.[Pp]ublish.xml 150 | *.azurePubxml 151 | # TODO: Comment the next line if you want to checkin your web deploy settings 152 | # but database connection strings (with potential passwords) will be unencrypted 153 | *.pubxml 154 | *.publishproj 155 | 156 | # Microsoft Azure Web App publish settings. Comment the next line if you want to 157 | # checkin your Azure Web App publish settings, but sensitive information contained 158 | # in these scripts will be unencrypted 159 | PublishScripts/ 160 | 161 | # NuGet Packages 162 | *.nupkg 163 | # The packages folder can be ignored because of Package Restore 164 | **/packages/* 165 | # except build/, which is used as an MSBuild target. 166 | !**/packages/build/ 167 | # Uncomment if necessary however generally it will be regenerated when needed 168 | #!**/packages/repositories.config 169 | # NuGet v3's project.json files produces more ignorable files 170 | *.nuget.props 171 | *.nuget.targets 172 | 173 | # Microsoft Azure Build Output 174 | csx/ 175 | *.build.csdef 176 | 177 | # Microsoft Azure Emulator 178 | ecf/ 179 | rcf/ 180 | 181 | # Windows Store app package directories and files 182 | AppPackages/ 183 | BundleArtifacts/ 184 | Package.StoreAssociation.xml 185 | _pkginfo.txt 186 | 187 | # Visual Studio cache files 188 | # files ending in .cache can be ignored 189 | *.[Cc]ache 190 | # but keep track of directories ending in .cache 191 | !*.[Cc]ache/ 192 | 193 | # Others 194 | ClientBin/ 195 | ~$* 196 | *~ 197 | *.dbmdl 198 | *.dbproj.schemaview 199 | *.jfm 200 | *.pfx 201 | *.publishsettings 202 | orleans.codegen.cs 203 | 204 | # Since there are multiple workflows, uncomment next line to ignore bower_components 205 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622) 206 | #bower_components/ 207 | 208 | # RIA/Silverlight projects 209 | Generated_Code/ 210 | 211 | # Backup & report files from converting an old project file 212 | # to a newer Visual Studio version. Backup files are not needed, 213 | # because we have git ;-) 214 | _UpgradeReport_Files/ 215 | Backup*/ 216 | UpgradeLog*.XML 217 | UpgradeLog*.htm 218 | 219 | # SQL Server files 220 | *.mdf 221 | *.ldf 222 | *.ndf 223 | 224 | # Business Intelligence projects 225 | *.rdl.data 226 | *.bim.layout 227 | *.bim_*.settings 228 | 229 | # Microsoft Fakes 230 | FakesAssemblies/ 231 | 232 | # GhostDoc plugin setting file 233 | *.GhostDoc.xml 234 | 235 | # Node.js Tools for Visual Studio 236 | .ntvs_analysis.dat 237 | node_modules/ 238 | 239 | # Typescript v1 declaration files 240 | typings/ 241 | 242 | # Visual Studio 6 build log 243 | *.plg 244 | 245 | # Visual Studio 6 workspace options file 246 | *.opt 247 | 248 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 249 | *.vbw 250 | 251 | # Visual Studio LightSwitch build output 252 | **/*.HTMLClient/GeneratedArtifacts 253 | **/*.DesktopClient/GeneratedArtifacts 254 | **/*.DesktopClient/ModelManifest.xml 255 | **/*.Server/GeneratedArtifacts 256 | **/*.Server/ModelManifest.xml 257 | _Pvt_Extensions 258 | 259 | # Paket dependency manager 260 | .paket/paket.exe 261 | paket-files/ 262 | 263 | # FAKE - F# Make 264 | .fake/ 265 | 266 | # JetBrains Rider 267 | .idea/ 268 | *.sln.iml 269 | 270 | # CodeRush 271 | .cr/ 272 | 273 | # Python Tools for Visual Studio (PTVS) 274 | __pycache__/ 275 | *.pyc 276 | 277 | # Cake - Uncomment if you are using it 278 | # tools/** 279 | # !tools/packages.config 280 | 281 | # Telerik's JustMock configuration file 282 | *.jmconfig 283 | 284 | # BizTalk build output 285 | *.btp.cs 286 | *.btm.cs 287 | *.odx.cs 288 | *.xsd.cs 289 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2017 davidbirchwork 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Vtk2Obj 2 | Convert Paraview .Vtk files to Wavefront .Obj files for 3d visualisation in game engines. 3 | 4 | Currently supports only conversion of triangulated meshes which must be only a shell (i.e. not a volumetric mesh). 5 | 6 | Will process either single or folders of .vtk files. 7 | 8 | Suggested usage - create an isosurface across the mesh and export this as a triangulated mesh in .vtk. 9 | 10 | # Instruction for ParaView Version 5.0.1 11 | 12 | Creation of the geoemtry *.vtk file: 13 | - Open one paraview file 14 | - Unselect all fields in Properties 15 | - Filter - Search - Extract Surface - Enter 16 | - Be sure that the Extract Surface is selected in the Pipeline Browser 17 | - Filter - Search - Generate Surface Normals - Enter 18 | - In Properties: Select "Compute Cell Normals" - Apply 19 | - Be sure that the Generate Surface Normals is selected in the Pipeline Browser 20 | - File - Save Data - Files of type : Legacy VTK Files (*.vtk) - Save 21 | - File type: ASCII - OK 22 | 23 | # Creation of the *.vtk isosurface files : 24 | - Open paraview files 25 | - Select only the field of interest in Properties 26 | - Filter - Contour 27 | - In Properties: Select "Compute Scalars" and choose the desired value of the isosurface - Apply 28 | - Be sure that Contour is selected in the Pipeline Browser 29 | - Filter - Search - Extract Surface - Enter 30 | - Be sure that the Extract Surface is selected in the Pipeline Browser 31 | - Filter - Search - Generate Surface Normals - Enter 32 | - In Properties: Select "Compute Cell Normals" - Apply 33 | - Be sure that the Generate Surface Normals is selected in the Pipeline Browser 34 | - File - Save Data - Files of type : Legacy VTK Files (*.vtk) - Save 35 | -Select "Write all timesteps as file-series" - File type: ASCII - OK 36 | -------------------------------------------------------------------------------- /Vtk2Obj.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 14 4 | VisualStudioVersion = 14.0.25420.1 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Vtk2Obj", "Vtk2Obj\Vtk2Obj.csproj", "{D1700F98-BA51-4F0D-820E-FF21FD40C137}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {D1700F98-BA51-4F0D-820E-FF21FD40C137}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {D1700F98-BA51-4F0D-820E-FF21FD40C137}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {D1700F98-BA51-4F0D-820E-FF21FD40C137}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {D1700F98-BA51-4F0D-820E-FF21FD40C137}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | EndGlobal 23 | -------------------------------------------------------------------------------- /Vtk2Obj/App.config: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /Vtk2Obj/CompressedObjWriter.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Text; 5 | using System.Threading.Tasks; 6 | 7 | namespace IsoSurfaceToObj { 8 | /// 9 | /// TODO this is an optimised .obj writer using LINQ, it will compress the .obj be recycling normals between faces 10 | /// 11 | class CompressedObjWriter { 12 | /* public static Tuple, List, List> WriteObjFile(IEnumerable triangles, bool includeNormals, string groupname, string material, 13 | List vertexes, List normals, List textures) { 14 | StringBuilder file = new StringBuilder(); 15 | 16 | int vertCount = vertexes.Count; 17 | int normalCount = normals.Count; 18 | int texCount = textures.Count; 19 | 20 | // header 21 | file.AppendLine("# object generated from shape file"); 22 | file.AppendLine(); 23 | file.AppendLine("g " + groupname);// todo should we set each building as a separate grouping? 24 | file.AppendLine("usemtl " + material); 25 | List faces = new List(); 26 | 27 | foreach (Triangle triangle in triangles) { 28 | string face = "f "; 29 | 30 | face += vertexes.IndexOfOrInsertFrom1(triangle.Pt1) + "/" + textures.IndexOfOrInsertFrom1(triangle.Pt1T) + 31 | (includeNormals ? "/" + normals.IndexOfOrInsertFrom1(triangle.Pt1N) + " " : " "); 32 | face += vertexes.IndexOfOrInsertFrom1(triangle.Pt2) + "/" + textures.IndexOfOrInsertFrom1(triangle.Pt2T) + 33 | (includeNormals ? "/" + normals.IndexOfOrInsertFrom1(triangle.Pt2N) + " " : " "); 34 | face += vertexes.IndexOfOrInsertFrom1(triangle.Pt3) + "/" + textures.IndexOfOrInsertFrom1(triangle.Pt3T) + 35 | (includeNormals ? "/" + normals.IndexOfOrInsertFrom1(triangle.Pt3N) + " " : " "); 36 | faces.Add(face); 37 | } 38 | 39 | file.AppendLine(); 40 | foreach (Vertex vertex in vertexes.Skip(vertCount)) { 41 | file.AppendLine("v " + vertex.X + " " + vertex.Y + " " + vertex.Z); 42 | } 43 | 44 | if (includeNormals) { 45 | file.AppendLine(); 46 | foreach (Vertex vertex in normals.Skip(normalCount)) { 47 | file.AppendLine("vn " + vertex.X + " " + vertex.Y + " " + vertex.Z); 48 | } 49 | } 50 | 51 | file.AppendLine(); 52 | foreach (Vertex vertex in textures.Skip(texCount)) { 53 | file.AppendLine("vt " + vertex.X + " " + vertex.Y + " " + vertex.Z); 54 | } 55 | 56 | file.AppendLine(); 57 | foreach (string face in faces) { 58 | file.AppendLine(face); 59 | } 60 | 61 | return new Tuple, List, List>(file.ToString(), vertexes, normals, textures); 62 | }*/ 63 | 64 | } 65 | 66 | public static class ListExtentions { 67 | 68 | public static int IndexOfOrInsertFrom1(this List list, T obj2Find) { 69 | int index = list.IndexOf(obj2Find); 70 | if (index != -1) { 71 | return index + 1; 72 | } 73 | list.Add(obj2Find); 74 | return list.IndexOf(obj2Find) + 1; 75 | 76 | } 77 | } 78 | } 79 | -------------------------------------------------------------------------------- /Vtk2Obj/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.IO; 4 | using System.Linq; 5 | using System.Text; 6 | using System.Threading.Tasks; 7 | 8 | namespace IsoSurfaceToObj { 9 | class Program { 10 | private static bool swapYZ = true; 11 | static void Main(string[] args) { 12 | //settings - precision - set in significatn figutres Digits 13 | // Swap YZ 14 | 15 | if (args.Length != 1) { 16 | Console.WriteLine("requires a .vtk file or a directory as an argument"); 17 | return; 18 | } 19 | 20 | string vtkfile = args[0]; 21 | if (File.Exists(vtkfile)) { 22 | ConvertVtkFile(vtkfile); 23 | } 24 | else { 25 | if (Directory.Exists(vtkfile)) { 26 | Parallel.ForEach(Directory.GetFiles(vtkfile), ConvertVtkFile); 27 | //foreach (var file in ) { 28 | // ConvertVtkFile(file); 29 | //} 30 | } 31 | } 32 | 33 | Console.ReadLine(); 34 | 35 | } 36 | 37 | private static void ConvertVtkFile(string vtkfile) { 38 | using (var file = File.ReadLines(vtkfile).GetEnumerator()) { 39 | Console.WriteLine("Starting " + vtkfile); 40 | 41 | if (!ReadUntilLine(file, "# vtk DataFile Version 4.2")) return; 42 | if (!ReadUntilLine(file, "ASCII")) return; 43 | if (!ReadUntilLine(file, "DATASET POLYDATA")) return; 44 | 45 | if (!ReadUntilLineStartsWith(file, "POINTS")) return; 46 | 47 | double[,] points = ReadPoints(file); 48 | 49 | if (!ReadUntilLineStartsWith(file, "POLYGONS")) return; 50 | 51 | int[,] triangles = ReadTriangles(file); 52 | 53 | if (!ReadUntilLineStartsWith(file, "NORMALS")) return; 54 | file.MoveNext(); 55 | double[,] normals = ReadDoublePoints(file, triangles.GetLength(0)); 56 | 57 | Console.WriteLine("Generating Obj"); 58 | var objfile = WriteAnObjFile(points, normals, null, triangles); 59 | 60 | string objFilePath = Path.ChangeExtension(vtkfile, ".obj"); 61 | Console.WriteLine("Writing Obj File"); 62 | File.WriteAllText(objFilePath, objfile.ToString()); 63 | Console.WriteLine("Finished " + objFilePath); 64 | } 65 | } 66 | 67 | private static StringBuilder WriteAnObjFile(double[,] points, double[,] normals, double[,] textures, int[,] triangles, 68 | string groupname = "mesh", string material = "mesh") { 69 | 70 | // todo note that we are not checking uniqueness of the normals or the texture points, we assume this wont make a difference... see the CompressedObjWriter for something that will 71 | 72 | StringBuilder file = new StringBuilder(); 73 | 74 | // header 75 | file.AppendLine("# object generated from DAvid Birch vtk to obj"); 76 | file.AppendLine("mtllib materials.mtl");//todo set this to your library. 77 | 78 | file.AppendLine(); 79 | for (int v = 0; v < points.GetLength(0); v++) { 80 | file.AppendLine("v " + points[v, 0].ToPreciseString() + " " + points[v, swapYZ? 2 : 1].ToPreciseString() + " " + points[v, swapYZ ? 1 : 2].ToPreciseString()); 81 | } 82 | 83 | 84 | if (normals != null) { 85 | file.AppendLine(); 86 | for (int v = 0; v < normals.GetLength(0); v++) { 87 | file.AppendLine("vn " + normals[v, 0].ToPreciseString() + " " + normals[v, swapYZ ? 2 : 1].ToPreciseString() + " " + normals[v, swapYZ ? 1 : 2].ToPreciseString()); 88 | } 89 | } 90 | 91 | if (textures != null) { 92 | file.AppendLine(); 93 | for (int v = 0; v < textures.GetLength(0); v++) { 94 | file.AppendLine("vt " + textures[v, 0].ToPreciseString() + " " + textures[v, swapYZ ? 2 : 1].ToPreciseString() + " " + textures[v, swapYZ ? 1 : 2].ToPreciseString()); 95 | } 96 | } 97 | 98 | 99 | file.AppendLine(); 100 | file.AppendLine("g " + groupname); 101 | file.AppendLine("usemtl " + material); 102 | 103 | 104 | for (int t = 0; t < triangles.GetLength(0); t++) { 105 | // note indexes are 1 based 106 | file.AppendLine("f " 107 | + (triangles[t, 0]+1) + "/" + (textures == null ? "" : (t+1).ToString()) + (normals == null ? "" : "/" + (t+1)) + " " 108 | + (triangles[t, 1]+1) + "/" + (textures == null ? "" : (t+1).ToString()) + (normals == null ? "" : "/" + (t+1)) + " " 109 | + (triangles[t, 2]+1) + "/" + (textures == null ? "" : (t+1).ToString()) + (normals == null ? "" : "/" + (t+1)) ); 110 | } 111 | 112 | return file; 113 | } 114 | 115 | 116 | private static int[,] ReadTriangles(IEnumerator file) { 117 | Console.WriteLine("Parsing Triangles"); 118 | var header = file.Current; 119 | int numberofTriangles = int.Parse(header.Split(new[] { " " }, StringSplitOptions.None)[1]);// todo error handling 120 | // POLYGONS 1504 6016 121 | int[,] points = new int[numberofTriangles, 3]; 122 | 123 | file.MoveNext(); 124 | 125 | int curr = 0; 126 | 127 | while (file.Current != string.Empty && curr file) { 153 | Console.WriteLine("Parsing Points"); 154 | var header = file.Current; 155 | int numberofPoints = int.Parse(header.Split(new[] {" "}, StringSplitOptions.None)[1]);// todo error handling 156 | // POINTS 1629 double 157 | 158 | 159 | file.MoveNext(); 160 | 161 | return ReadDoublePoints(file, numberofPoints); 162 | } 163 | 164 | private static double[,] ReadDoublePoints(IEnumerator file, int numberofPoints) { 165 | Console.WriteLine("Parsing "+numberofPoints+" 3d points as doubles"); 166 | double[,] points = new double[numberofPoints, 3]; 167 | int curr = 0; 168 | 169 | while (file.Current != string.Empty && curr file, string line) { 199 | Console.WriteLine("Searching for line starting with "+line); 200 | while (!file.Current.StartsWith(line)) { 201 | if (!file.MoveNext()) { 202 | Console.WriteLine("could not find line starting with " + line); 203 | return false; 204 | } 205 | 206 | } 207 | 208 | return true; 209 | } 210 | 211 | private static bool ReadUntilLine(IEnumerator file, string line) { 212 | Console.WriteLine("Searching for line " + line); 213 | 214 | while (file.Current != line) { 215 | if (!file.MoveNext()) { 216 | Console.WriteLine("could not find line "+line); 217 | return false; 218 | } 219 | 220 | } 221 | 222 | return true; 223 | } 224 | } 225 | } 226 | -------------------------------------------------------------------------------- /Vtk2Obj/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("IsoSurfaceToObj")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("Hewlett-Packard")] 12 | [assembly: AssemblyProduct("IsoSurfaceToObj")] 13 | [assembly: AssemblyCopyright("Copyright © Hewlett-Packard 2017")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("d1700f98-ba51-4f0d-820e-ff21fd40c137")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /Vtk2Obj/SignificantDigits.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Text; 3 | 4 | namespace IsoSurfaceToObj { 5 | /// 6 | /// https://stackoverflow.com/questions/374316/round-a-double-to-x-significant-figures 7 | /// 8 | public static class SignificantDigits { 9 | private static readonly string DecimalSeparator; 10 | 11 | static SignificantDigits() { 12 | System.Globalization.CultureInfo ci = System.Threading.Thread.CurrentThread.CurrentCulture; 13 | DecimalSeparator = ci.NumberFormat.NumberDecimalSeparator; 14 | } 15 | 16 | /// 17 | /// Format a double to a given number of significant digits. 18 | /// 19 | /// 20 | /// 0.086 -> "0.09" (digits = 1) 21 | /// 0.00030908 -> "0.00031" (digits = 2) 22 | /// 1239451.0 -> "1240000" (digits = 3) 23 | /// 5084611353.0 -> "5085000000" (digits = 4) 24 | /// 0.00000000000000000846113537656557 -> "0.00000000000000000846114" (digits = 6) 25 | /// 50.8437 -> "50.84" (digits = 4) 26 | /// 50.846 -> "50.85" (digits = 4) 27 | /// 990.0 -> "1000" (digits = 1) 28 | /// -5488.0 -> "-5000" (digits = 1) 29 | /// -990.0 -> "-1000" (digits = 1) 30 | /// 0.0000789 -> "0.000079" (digits = 2) 31 | /// 32 | public static string ToPreciseString(this double number, int digits = 8, bool showTrailingZeros = false, bool alwaysShowDecimalSeparator = false) { 33 | if (Double.IsNaN(number) || 34 | Double.IsInfinity(number)) { 35 | return number.ToString(); 36 | } 37 | 38 | string sSign = ""; 39 | string sBefore = "0"; // Before the decimal separator 40 | string sAfter = ""; // After the decimal separator 41 | 42 | if (number != 0d) { 43 | if (digits < 1) { 44 | throw new ArgumentException("The digits parameter must be greater than zero."); 45 | } 46 | 47 | if (number < 0d) { 48 | sSign = "-"; 49 | number = Math.Abs(number); 50 | } 51 | 52 | // Use scientific formatting as an intermediate step 53 | string sFormatString = "{0:" + new String('#', digits) + "E0}"; 54 | string sScientific = String.Format(sFormatString, number); 55 | 56 | string sSignificand = sScientific.Substring(0, digits); 57 | int exponent = Int32.Parse(sScientific.Substring(digits + 1)); 58 | // (the significand now already contains the requested number of digits with no decimal separator in it) 59 | 60 | StringBuilder sFractionalBreakup = new StringBuilder(sSignificand); 61 | 62 | if (!showTrailingZeros) { 63 | while (sFractionalBreakup[sFractionalBreakup.Length - 1] == '0') { 64 | sFractionalBreakup.Length--; 65 | exponent++; 66 | } 67 | } 68 | 69 | // Place decimal separator (insert zeros if necessary) 70 | 71 | int separatorPosition = 0; 72 | 73 | if ((sFractionalBreakup.Length + exponent) < 1) { 74 | sFractionalBreakup.Insert(0, "0", 1 - sFractionalBreakup.Length - exponent); 75 | separatorPosition = 1; 76 | } else if (exponent > 0) { 77 | sFractionalBreakup.Append('0', exponent); 78 | separatorPosition = sFractionalBreakup.Length; 79 | } else { 80 | separatorPosition = sFractionalBreakup.Length + exponent; 81 | } 82 | 83 | sBefore = sFractionalBreakup.ToString(); 84 | 85 | if (separatorPosition < sBefore.Length) { 86 | sAfter = sBefore.Substring(separatorPosition); 87 | sBefore = sBefore.Remove(separatorPosition); 88 | } 89 | } 90 | 91 | string sReturnValue = sSign + sBefore; 92 | 93 | if (sAfter == "") { 94 | if (alwaysShowDecimalSeparator) { 95 | sReturnValue += DecimalSeparator + "0"; 96 | } 97 | } else { 98 | sReturnValue += DecimalSeparator + sAfter; 99 | } 100 | 101 | return sReturnValue.Substring(0, Math.Min(sReturnValue.Length, digits)); 102 | } 103 | } 104 | } -------------------------------------------------------------------------------- /Vtk2Obj/Vtk2Obj.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {D1700F98-BA51-4F0D-820E-FF21FD40C137} 8 | Exe 9 | Properties 10 | Vtk2Obj 11 | Vtk2Obj 12 | v4.5.2 13 | 512 14 | true 15 | false 16 | publish\ 17 | true 18 | Disk 19 | false 20 | Foreground 21 | 7 22 | Days 23 | false 24 | false 25 | true 26 | 0 27 | 1.0.0.%2a 28 | false 29 | true 30 | 31 | 32 | AnyCPU 33 | true 34 | full 35 | false 36 | bin\Debug\ 37 | DEBUG;TRACE 38 | prompt 39 | 4 40 | 41 | 42 | AnyCPU 43 | pdbonly 44 | true 45 | bin\Release\ 46 | TRACE 47 | prompt 48 | 4 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | False 72 | Microsoft .NET Framework 4.5.2 %28x86 and x64%29 73 | true 74 | 75 | 76 | False 77 | .NET Framework 3.5 SP1 78 | false 79 | 80 | 81 | 82 | 89 | -------------------------------------------------------------------------------- /Vtk2Obj/format.txt: -------------------------------------------------------------------------------- 1 | POINTS 1629 double 2 | 12.505969516 -0.36315498129 0.20074518087 12.50631976 -0.36408118607 0.20000000298 12.506072403 -0.36333316825 0.20000000298 3 | 4 | POLYGONS 1504 6016 5 | 3 0 1 2 6 | 7 | CELL_DATA 1504 8 | NORMALS Normals float 9 | 0.94795 0.313471 0.0559264 0.472715 0.86959 -0.142669 0.472715 0.86959 -0.142669 10 | 11 | POINT_DATA 1629 12 | SCALARS TracerObelisk double 13 | LOOKUP_TABLE default 14 | 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 15 | 16 | NORMALS Normals float 17 | 0.900985 0.425802 -0.083183 0.934314 0.356431 -0.00387905 0.94795 0.313471 0.0559264 --------------------------------------------------------------------------------