/// <summary>
///
/// </summary>
/// <param name="commandData"></param>
/// <param name="message"></param>
/// <param name="elements"></param>
/// <returns></returns>
Result IExternalCommand.Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
if (!TryGetActiveDocument(commandData, out Autodesk.Revit.DB.Document docToExport))
{
return(Result.Failed);
}
if (!TryGetDefaultView(docToExport, out View viewToExport))
{
return(Result.Failed);
}
// Grab doc name
string docName = Path.GetFileNameWithoutExtension(docToExport.Title);
// Prep FBX export
var vs = new ViewSet();
vs.Insert(viewToExport);
// Grab configuration
var configuration = ConfigurationManager.ActiveConfiguration;
// Create a new folder for the export
configuration.ExportFilePathRoot = $"C:/Cityzenith/{docName}";
if (!Directory.Exists(configuration.ExportFilePathRoot))
{
Directory.CreateDirectory(configuration.ExportFilePathRoot);
}
// Export FBX file
docToExport.Export(
configuration.ExportFilePathRoot,
docName,
vs,
new FBXExportOptions()
{
LevelsOfDetailValue = 15,
UseLevelsOfDetail = true,
WithoutBoundaryEdges = true
}
);
// Check that file was created successfully
var fbxFileName = configuration.ExportFilePathRoot + "/" + docName + ".fbx";
if (!System.IO.File.Exists(fbxFileName))
{
return(Result.Failed);
}
var fbxModel = AssimpUtilities.LoadFbx(fbxFileName);
// Get conversions between local ids
var localToUniqueIdMap = docToExport.ExportableElements()
.ToDictionary(e => e.Id.ToString(), e => e.UniqueId.ToString());
// Replace auto-generated element names in Fbx with unqiue ids from revit doc
AssimpUtilities.ReplaceNamesWithUniqueIds(fbxModel, localToUniqueIdMap);
// Create textures subfolder
string textureDirPath = configuration.ExportFilePathRoot + '/' + "Textures";
if (!Directory.Exists(textureDirPath))
{
Directory.CreateDirectory(textureDirPath);
}
var bundles = MaterialUtilities.GetTextureBundles(docToExport, out var paths);
foreach (var b in bundles)
{
// Create material
var assimpMaterial = AssimpUtilities.ConvertToAssimpMaterial(b, docToExport);
// Add material to model and assign
AssimpUtilities.AddAndAssignMaterial(
fbxModel,
assimpMaterial,
docToExport.ExportableElements().Where(e =>
{
var id = e.GetMaterialIds(false).FirstOrDefault();
if (id != null && id == b.Material.Id)
{
return(true);
}
return(false);
})
.Select(e => e.UniqueId.ToString())
.ToHashSet()
, out bool utilized);
if (!utilized)
{
continue;
}
// Copy textures into textures folder
foreach (var path in b.TexturePaths.Values)
{
string destination = $"{textureDirPath}/{path.SafeFileName}";
try
{
File.Copy(path.FileLocation, destination, true);
}
catch (Exception e)
{
// This is likely due to duplicate materials copied in.
// This could also be an access issue, but less commonly.
//Logger.LogException("Error in copying textures: ", e);
}
}
}
// Grab all element data
var paramData = docToExport.SiphonElementParamValues(out var legend);
var combined = paramData.Values.Combine();
JsonConvert.SerializeObject(combined).WriteToFile($"{configuration.ExportFilePathRoot}/Params.json");
JsonConvert.SerializeObject(legend).WriteToFile($"{configuration.ExportFilePathRoot}/Legend.json");
// Write out gltf
AssimpUtilities.SaveToGltf(fbxModel, $"{configuration.ExportFilePathRoot}", docName);
// Delete .FBX
File.Delete(fbxFileName);
// Let em know!
TaskDialog dlg = new TaskDialog("Export Successful");
dlg.MainInstruction = $"Gltf file exported successfully: \n\n {configuration.ExportFilePathRoot}";
dlg.Show();
Process.Start(configuration.ExportFilePathRoot);
return(Result.Succeeded);
}