@@ -307,7 +307,16 @@ public void OnIFCExport(object sender, CommandEventArgs args)
307307 if ( selectedConfig . ExportLinkedFiles == true )
308308 {
309309 exportOptions . AddOption ( "ExportingLinks" , true . ToString ( ) ) ;
310- ExportLinkedDocuments ( document , fullName , linksGUIDsCache , exportOptions ) ;
310+ try
311+ {
312+ // Newer version of export linked documents
313+ ExportLinkedDocuments ( document , fullName , linksGUIDsCache , exportOptions ) ;
314+ }
315+ catch
316+ {
317+ // Older version which uses copy of linked file, doesn't work for cloud documents
318+ ExportLinkedDocumentsOldVersion ( document , fullName , linksGUIDsCache , exportOptions ) ;
319+ }
311320 exportOptions . AddOption ( "ExportingLinks" , false . ToString ( ) ) ;
312321 }
313322 }
@@ -396,6 +405,20 @@ private void AddExpandedElementIdContent(ref string messageString, string format
396405 messageString += string . Format ( formatString , ElementIdListToString ( items ) ) ;
397406 }
398407
408+ private string GetLinkFileName ( Document linkDocument , string linkPathName )
409+ {
410+ int index = linkPathName . LastIndexOf ( "\\ " ) ;
411+ if ( index <= 0 )
412+ return linkDocument . Title ;
413+
414+ string linkFileName = linkPathName . Substring ( index + 1 ) ;
415+ // remove the extension
416+ index = linkFileName . LastIndexOf ( '.' ) ;
417+ if ( index > 0 )
418+ linkFileName = linkFileName . Substring ( 0 , index ) ;
419+ return linkFileName ;
420+ }
421+
399422 public void ExportLinkedDocuments ( Autodesk . Revit . DB . Document document , string fileName , Dictionary < ElementId , string > linksGUIDsCache , IFCExportOptions exportOptions )
400423 {
401424 // get the extension
@@ -440,17 +463,254 @@ public void ExportLinkedDocuments(Autodesk.Revit.DB.Document document, string fi
440463 linkPathName = linkDocument . PathName ;
441464
442465 // get the link file name
443- String linkFileName = "" ;
444- index = linkPathName . LastIndexOf ( "\\ " ) ;
445- if ( index > 0 )
446- linkFileName = linkPathName . Substring ( index + 1 ) ;
466+ string linkFileName = GetLinkFileName ( linkDocument , linkPathName ) ;
467+
468+ // add to names count dictionary
469+ if ( ! rvtLinkNamesDict . Keys . Contains ( linkFileName ) )
470+ rvtLinkNamesDict . Add ( linkFileName , 0 ) ;
471+ rvtLinkNamesDict [ linkFileName ] ++ ;
472+
473+ // add to names instances dictionary
474+ if ( ! rvtLinkNamesToInstancesDict . Keys . Contains ( linkPathName ) )
475+ rvtLinkNamesToInstancesDict . Add ( linkPathName , new List < RevitLinkInstance > ( ) ) ;
476+ rvtLinkNamesToInstancesDict [ linkPathName ] . Add ( rvtLinkInstance ) ;
477+ }
478+ }
479+ catch
480+ {
481+ }
482+
483+ // get the link instances
484+ // We will keep track of the instances we can't export.
485+ // Reasons we can't export:
486+ // 1. The path for the linked instance doesn't exist.
487+ // 2. Couldn't create a temporary document for exporting the linked instance.
488+ // 3. The document for the linked instance can't be found.
489+ // 4. The linked instance is mirrored, non-conformal, or scaled.
490+ IList < string > pathDoesntExist = new List < string > ( ) ;
491+ IList < string > noTempDoc = new List < string > ( ) ;
492+ IList < ElementId > cantFindDoc = new List < ElementId > ( ) ;
493+ IList < ElementId > nonConformalInst = new List < ElementId > ( ) ;
494+ IList < ElementId > scaledInst = new List < ElementId > ( ) ;
495+ IList < ElementId > instHasReflection = new List < ElementId > ( ) ;
496+
497+ foreach ( KeyValuePair < string , List < RevitLinkInstance > > linkPathNames in rvtLinkNamesToInstancesDict )
498+ {
499+ string linkPathName = linkPathNames . Key ;
500+
501+ // get the link instances
502+ List < RevitLinkInstance > currRvtLinkInstances = rvtLinkNamesToInstancesDict [ linkPathName ] ;
503+ IList < string > serTransforms = new List < string > ( ) ;
504+ IList < string > linkFileNames = new List < string > ( ) ;
505+
506+ Document linkDocument = null ;
507+ double lengthScaleFactorLink = 1.0 ;
508+
509+ foreach ( RevitLinkInstance currRvtLinkInstance in currRvtLinkInstances )
510+ {
511+ // Nothing to report if the element itself is null.
512+ if ( currRvtLinkInstance == null )
513+ continue ;
514+
515+ // get the link document and the unit scale
516+ if ( linkDocument == null )
517+ {
518+ linkDocument = currRvtLinkInstance . GetLinkDocument ( ) ;
519+
520+ lengthScaleFactorLink = UnitUtils . ConvertFromInternalUnits (
521+ 1.0 ,
522+ linkDocument . GetUnits ( ) . GetFormatOptions ( SpecTypeId . Length ) . GetUnitTypeId ( ) ) ;
523+ }
524+
525+ if ( linkDocument == null )
526+ {
527+ cantFindDoc . Add ( currRvtLinkInstance . Id ) ;
528+ continue ;
529+ }
530+
531+ // get the link transform
532+ Transform tr = currRvtLinkInstance . GetTransform ( ) ;
533+
534+ // We can't handle non-conformal, scaled, or mirrored transforms.
535+ if ( ! tr . IsConformal )
536+ {
537+ nonConformalInst . Add ( currRvtLinkInstance . Id ) ;
538+ continue ;
539+ }
540+
541+ if ( tr . HasReflection )
542+ {
543+ instHasReflection . Add ( currRvtLinkInstance . Id ) ;
544+ continue ;
545+ }
546+
547+ if ( ! MathUtil . IsAlmostEqual ( tr . Determinant , 1.0 ) )
548+ {
549+ scaledInst . Add ( currRvtLinkInstance . Id ) ;
550+ continue ;
551+ }
552+
553+ // get the link file path and name
554+ String linkFileName = GetLinkFileName ( linkDocument , linkPathName ) ;
555+
556+ //if link was an IFC file then make a different formating to the file name
557+ if ( ( linkPathName . Length >= 4 && linkPathName . Substring ( linkPathName . Length - 4 ) . ToLower ( ) == ".ifc" ) ||
558+ ( linkPathName . Length >= 7 && linkPathName . Substring ( linkPathName . Length - 7 ) . ToLower ( ) == ".ifcxml" ) ||
559+ ( linkPathName . Length >= 7 && linkPathName . Substring ( linkPathName . Length - 7 ) . ToLower ( ) == ".ifczip" ) )
560+ {
561+ String fName = fileName ;
562+
563+ //get output path and add to the new file name
564+ index = fName . LastIndexOf ( "\\ " ) ;
565+ if ( index > 0 )
566+ fName = fName . Substring ( 0 , index + 1 ) ;
567+ else
568+ fName = "" ;
569+
570+ //construct IFC file name
571+ linkFileName = fName + linkFileName + "-" ;
572+
573+ //add guid
574+ linkFileName += linksGUIDsCache [ currRvtLinkInstance . Id ] ;
575+ }
447576 else
448- linkFileName = linkDocument . Title ;
577+ {
578+ // check if there are multiple instances with the same name
579+ bool bMultiple = ( rvtLinkNamesDict [ linkFileName ] > 1 ) ;
449580
450- // remove the extension
451- index = linkFileName . LastIndexOf ( '.' ) ;
452- if ( index > 0 )
453- linkFileName = linkFileName . Substring ( 0 , index ) ;
581+ // add the path
582+ linkFileName = fileName + "-" + linkFileName ;
583+
584+ // add the guid
585+ if ( bMultiple )
586+ {
587+ linkFileName += "-" ;
588+ linkFileName += linksGUIDsCache [ currRvtLinkInstance . Id ] ;
589+ }
590+ }
591+
592+ // add the extension
593+ linkFileName += sExtension ;
594+
595+ linkFileNames . Add ( linkFileName ) ;
596+
597+ // scale the transform origin
598+ tr . Origin *= lengthScaleFactorLink ;
599+
600+ // serialize transform
601+ serTransforms . Add ( SerializeTransform ( tr ) ) ;
602+ }
603+
604+ // IFC export requires an open transaction, although no changes should be made
605+ if ( linkDocument != null )
606+ {
607+ Transaction transaction = new Transaction ( linkDocument , "Export IFC Link" ) ;
608+ transaction . Start ( ) ;
609+ FailureHandlingOptions failureOptions = transaction . GetFailureHandlingOptions ( ) ;
610+ failureOptions . SetClearAfterRollback ( false ) ;
611+ transaction . SetFailureHandlingOptions ( failureOptions ) ;
612+
613+ // export
614+ try
615+ {
616+ int numLinkInstancesToExport = linkFileNames . Count ;
617+ exportOptions . AddOption ( "NumberOfExportedLinkInstances" , numLinkInstancesToExport . ToString ( ) ) ;
618+
619+ for ( int ind = 0 ; ind < numLinkInstancesToExport ; ind ++ )
620+ {
621+ string optionName = ( ind == 0 ) ? "ExportLinkInstanceTransform" : "ExportLinkInstanceTransform" + ( ind + 1 ) . ToString ( ) ;
622+ exportOptions . AddOption ( optionName , serTransforms [ ind ] ) ;
623+
624+ // Don't pass in file name for the first link instance.
625+ if ( ind == 0 )
626+ continue ;
627+ optionName = "ExportLinkInstanceFileName" + ( ind + 1 ) . ToString ( ) ;
628+ exportOptions . AddOption ( optionName , linkFileNames [ ind ] ) ;
629+ }
630+ // Pass in the first value; the rest will be in the options.
631+ String path_ = Path . GetDirectoryName ( linkFileNames [ 0 ] ) ;
632+ String fileName_ = Path . GetFileName ( linkFileNames [ 0 ] ) ;
633+ bool result = linkDocument . Export ( path_ , fileName_ , exportOptions ) ; // pass in the options here
634+ }
635+ catch
636+ {
637+ }
638+
639+ // rollback the transaction
640+ transaction . RollBack ( ) ;
641+ }
642+
643+ // Show user errors, if any.
644+ int numBadInstances = pathDoesntExist . Count + noTempDoc . Count + cantFindDoc . Count + nonConformalInst . Count
645+ + scaledInst . Count + instHasReflection . Count ;
646+ if ( numBadInstances > 0 )
647+ {
648+ using ( TaskDialog taskDialog = new TaskDialog ( Properties . Resources . IFCExport ) )
649+ {
650+ taskDialog . MainInstruction = string . Format ( Properties . Resources . LinkInstanceExportErrorMain , numBadInstances ) ;
651+ taskDialog . MainIcon = TaskDialogIcon . TaskDialogIconWarning ;
652+ taskDialog . TitleAutoPrefix = false ;
653+
654+ string expandedContent = "" ;
655+ AddExpandedStringContent ( ref expandedContent , Properties . Resources . LinkInstanceExportErrorPath , pathDoesntExist ) ;
656+ AddExpandedStringContent ( ref expandedContent , Properties . Resources . LinkInstanceExportCantCreateDoc , noTempDoc ) ;
657+ AddExpandedElementIdContent ( ref expandedContent , Properties . Resources . LinkInstanceExportCantFindDoc , cantFindDoc ) ;
658+ AddExpandedElementIdContent ( ref expandedContent , Properties . Resources . LinkInstanceExportNonConformal , nonConformalInst ) ;
659+ AddExpandedElementIdContent ( ref expandedContent , Properties . Resources . LinkInstanceExportScaled , scaledInst ) ;
660+ AddExpandedElementIdContent ( ref expandedContent , Properties . Resources . LinkInstanceExportHasReflection , instHasReflection ) ;
661+
662+ taskDialog . ExpandedContent = expandedContent ;
663+ TaskDialogResult result = taskDialog . Show ( ) ;
664+ }
665+ }
666+ }
667+ }
668+
669+ public void ExportLinkedDocumentsOldVersion ( Autodesk . Revit . DB . Document document , string fileName , Dictionary < ElementId , string > linksGUIDsCache , IFCExportOptions exportOptions )
670+ {
671+ // get the extension
672+ int index = fileName . LastIndexOf ( '.' ) ;
673+ if ( index <= 0 )
674+ return ;
675+ string sExtension = fileName . Substring ( index ) ;
676+ fileName = fileName . Substring ( 0 , index ) ;
677+
678+ // get all the revit link instances
679+ FilteredElementCollector collector = new FilteredElementCollector ( document ) ;
680+ ElementFilter elementFilter = new ElementClassFilter ( typeof ( RevitLinkInstance ) ) ;
681+ List < RevitLinkInstance > rvtLinkInstances = collector . WherePasses ( elementFilter ) . Cast < RevitLinkInstance > ( ) . ToList ( ) ;
682+
683+ IDictionary < String , int > rvtLinkNamesDict = new Dictionary < String , int > ( ) ;
684+ IDictionary < String , List < RevitLinkInstance > > rvtLinkNamesToInstancesDict = new Dictionary < String , List < RevitLinkInstance > > ( ) ;
685+
686+ try
687+ {
688+ // get the link types
689+ foreach ( RevitLinkInstance rvtLinkInstance in rvtLinkInstances )
690+ {
691+ // get the instance
692+ if ( rvtLinkInstance == null )
693+ continue ;
694+
695+ // check the cache
696+ if ( linksGUIDsCache . Keys . Contains ( rvtLinkInstance . Id ) == false )
697+ continue ;
698+
699+ // get the link document
700+ Document linkDocument = rvtLinkInstance . GetLinkDocument ( ) ;
701+ if ( linkDocument == null )
702+ continue ;
703+
704+ // get the link file path and name
705+ String linkPathName = "" ;
706+ Parameter originalFileNameParam = linkDocument . ProjectInformation . LookupParameter ( "Original IFC File Name" ) ;
707+ if ( originalFileNameParam != null && originalFileNameParam . StorageType == StorageType . String )
708+ linkPathName = originalFileNameParam . AsString ( ) ;
709+ else
710+ linkPathName = linkDocument . PathName ;
711+
712+ // get the link file name
713+ string linkFileName = GetLinkFileName ( linkDocument , linkPathName ) ;
454714
455715 // add to names count dictionary
456716 if ( ! rvtLinkNamesDict . Keys . Contains ( linkFileName ) )
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