public void ExportFile(Document docWrapper, View3D view3d, string rfaFilePath)
{
if (docWrapper is null)
{
throw new ArgumentNullException(nameof(docWrapper));
}
if (docWrapper.IsFamilyDocument)
{
throw new InvalidOperationException("Only project-type documents could be exported.");
}
var familyName = Path.GetFileNameWithoutExtension(rfaFilePath);
var familyExportArgs = new FamilyExportEventArgs {
FamilyFilePath = rfaFilePath
};
this?.OnExportStarted(familyExportArgs);
Family family;
using (var collector = new FilteredElementCollector(docWrapper))
using (var filter = new ElementClassFilter(typeof(Family), false))
{
family = collector
.WherePasses(filter)
.Cast <Family>()
.FirstOrDefault(f => f.Name.Equals(familyName, StringComparison.OrdinalIgnoreCase));
}
if (family is null)
{
using var t = new Transaction(docWrapper, $"Load the family '{familyName}'");
t.Start();
if (!docWrapper.LoadFamily(rfaFilePath, out family))
{
throw new InvalidOperationException();
}
t.Commit();
}
foreach (var typElementId in family.GetFamilySymbolIds())
{
FamilyInstance familyInstance;
if (!(docWrapper.GetElement(typElementId) is FamilySymbol familySymbol))
{
throw new InvalidOperationException();
}
var outputFilePath = familySymbol.Name.Equals(familyName, StringComparison.OrdinalIgnoreCase)
? Path.ChangeExtension(rfaFilePath, ".json")
: Path.ChangeExtension(rfaFilePath, $";{familySymbol.Name}.json");
var familyTypeExportArgs = new FamilySymbolExportEventArgs {
FamilyFilePath = rfaFilePath, Symbol = familySymbol?.Name, OutputFilePath = outputFilePath
};
this?.OnSymbolExportStarted(familyTypeExportArgs);
if (string.IsNullOrWhiteSpace(outputFilePath) || File.Exists(outputFilePath))
{
continue;
}
using (var t = new Transaction(docWrapper, $"Placing family instance '{familySymbol.Name}'"))
{
t.Start();
if (!familySymbol.IsActive)
{
familySymbol.Activate();
}
familyInstance = docWrapper.Create.NewFamilyInstance(
XYZ.Zero,
familySymbol,
StructuralType.NonStructural);
t.Commit();
}
var context = new ObjectSceneExportContext(docWrapper, view3d);
using (var exporter = new ObjectSceneExporter(docWrapper, context)
{
ShouldStopOnError = false,
})
{
var objectScene = exporter.Export(view3d as View);
var objectSceneJson = objectScene.ToString();
File.WriteAllText(outputFilePath, objectSceneJson);
}
this?.OnSymbolExportEnded(familyTypeExportArgs);
using (var t = new Transaction(docWrapper, $"Remove family symbol '{familyInstance.Name}'"))
{
t.Start();
docWrapper.Delete(familySymbol.Id);
t.Commit();
}
familyInstance.Dispose();
}
this?.OnExportEnded(familyExportArgs);
using (var t = new Transaction(docWrapper, $"Remove family '{family.Name}'"))
{
t.Start();
docWrapper.Delete(family.Id);
t.Commit();
}
family.Dispose();
}
protected virtual void OnSymbolExportEnded(FamilySymbolExportEventArgs args)
{
var handler = symbolExportEnded;
handler?.Invoke(this, args);
}
