What's New in V2026.1 ?

Table Of Contents:

• Utils
• Readers
• Writers
• Tesselation

Utils

• Third parties : New Version Lzma librairies updated to 25.01
• Third parties : New Version LibTiff librairies updated to 4.7.1
• Added new possibilities in enum Dtk_View::ViewType :

  // Dtk_View containing the title block area of a sheet.
  TitleBlockView = 8,
  // Dtk_View containing entities on sheet that are not related to any view of a 3D model.
  SheetView = 16

Readers

• Catia V5
  • Assembly processing time optimisation
  • Fixed wireframe edge orientation
• Catia V6 / 3DExperience
  • New Version Added 3DExperience/CATIA V6 2026x support
  • Improvement of the processing performance of 3dxml files produced by SOLIDWORKS software
• Creo Parametric / ProEngineer
  • Geometrical tolerance under datum tag position fixed
  • Physical Material fixed
  • Designate property for cabling assembly
  • Cable thickness fixed
  • Cosmetic sketch now processed
  • Decal now processed in materials
  • Connectors between geometrical tolerances fixed
  • Connectors between some dimension and surface fixed
  • Connectors between cable body and components
  • Geometric tolerance that miss references are now flagged
  • ModelDisplay flag "activated" now fixed
  • Symbol colors fixed
  • ConfigurationName now fixed on Prototype
  • Hole features values tolerances now fixed
  • Wireframe visibility improved
  • Dimension Curve extension line
  • 2D :
    • Missing datum tag fixed
    • Snap lines now processed
    • Detail View curves now processed
    • OLE Object in view now processed
• Creo View
  • Preset Explode now process in a catalog component
• FBX
  • Support TGA texture.
  • Fixed placement issue
• Fusion 360
  • New Version Support versions up to 2605.1.39
• IFC
  • Fixed positionning of IfcProduct with geometry and children with their own geometry for some problematic cases.
• JT
  • Improved semantic PMIs
• Inventor
  • Added wire body from unfolded state if present in case of sheet metal part, this body is flagged as construction (to retrieve it, use Dtk_Info::GetBlankedStatus() == 2 ) and the node containing this wire body has a metadata with the type "TypeSheetMetal" and title "DTK_UNFOLD" (to retrieve it, use Dtk_DocElement::GetMetaData( inPos ) method)
  • Added information concerning the presence of cosmetic centerline on wire element for sheet metal part (to retrieve it, use Dtk_Info::FindAttribute(L"CENTER_LINE",outVal) method)
  • Improved management of moved folder for sub components
  • Improved reading of components with a very huge number of bodies
  • Improved component unvisibility in a view
• NX/Unigraphics
  • New Version Added support for last version NX 2512 Series (until 2512.1700)
  • 3D/FDT:
    • Add missing link between PMI and geometry
    • Add missing symbol PMI_CircleIdSymbol and other specification
    • Fixed width of symbol
    • Fixed width/style of extension line
    • Remove wrong link between PMI and geometry
    • Set construction statut for reference line an point
    • Fixed bold font on text
  • 2D:
    • Fixed missing of view frame
    • Fixed width of symbol
    • Fixed width/style of extension line
    • Fixed bold font on text
    • Fixed text parameter with file properties
• Qif
  • Added UUID read for every components, nodes, and entities
• Revit
  • Added handling of more unit symbols (euro).
  • Improved handling of Geolocation point, that would sometimes be incorrect.
• Solid Edge
  • New Version Added support for Solidedge 2026
  • 3D:
    • Fixed instances that have assembly features being wrongly overriden again by upper assemblies in some cases.
• SolidWorks
  • New Version Added SolidWorks 2026 support
  • 3D:
    • The names of the catalogs' children now correspond to the file names for files prior to 2006
    • Fixed bad reading of derived configurations in assembly files
    • Improved construction tree (using Cross Break entities)
      
    • Improved visibility of some surface bodies
    • 3D FDT:
      • Removed extra angular dimension extension lines made of only one point
  • 2D
    • Added types on Dtk_View. See bool Dtk_View::IsView( ViewType )
    • Graphic:
      • Fixed case of drawings with extra or missing views
      • Fixed case of missing geometry curves
      • Fixed cases of wrong line type
      • Fixed case of missing arrow heads
• STEP
  • Added handling of geometrical tolerance modifier "UF" (united feature) and "OZ" (offset_zone)
  • Improved geometry visibility in view description (AP242).
  • Improved connectors from view to annotation, that would sometimes be invalid in cases of file with several roots.

Writers

• ACIS
  • Fixed bad writing of ACIS files if a face has a name but no color.
• IFC
  • Improved representation of periodic surfaces.
  • Improved properties assignment to building elements, that would sometimes be duplicated between an element and its type.
  • Improved color application consistency between IFC4 and IFC2x3, that would sometimes be different in case of rendering information being present on the entity.
• JT
  • Time optimisation for version 9.x and 10.x
  • Compression optimisation
  • Fix PMI autorotation under Jt2Go
  • Can now write modelViews with explosion
• NX
  • default line style and color customizable.
  • fix wire NURBS with weight issue.
• STEP
  • Added handling of geometrical tolerance modifier "UF" (united feature) and "OZ" (offset_zone)
  • Improved handling of geometry and assembly visibility by view, that would sometimes cause duplication when importing back into CAD software.
  • Improved assembly tree representation that would sometimes add non-existing levels.
  • Improved light map color representation, now prioritizing diffuse color over ambient color.
• 3dxml
  • Managing Unicode file paths, folders, and names

Tesselation

• Deprecate outdated functions (more info in tess.h)

  int tess_InitLocalTess();
  Dtk_ErrorStatus tess_AddFace(Dtk_FacePtr &inFace);
  Dtk_ErrorStatus tess_AddFace(Dtk_OrientedFaceStr &inFace);
  int tess_TesselateMemo(Dtk_MeshPtr &outMesh, int *outIsSolid);
  void set_TesselateSurfaceMethod(int ival);
  int get_TesselateSurfaceMethod();
  void tess_getBoundariesFromMeshFace(const Dtk_MeshPtr &mesh, const Dtk_mesh_face  *inFace, Dtk_tab<Dtk_tab<Dtk_MeshPolylinePtr> > &outBoundaries);