CATIA V5R21 delivers top quality surfaces achievement for body work in the automotive industry, with superior user experience from CATIA Imagine & Shape CATIA Imagine & Shape, the virtual clay modeler based on subdivision surface technology, delivers world-class surface tools to address body shape details such as cutting face plus superior usability tools for designers. Designers take also advantage of real-time rendering visual feedback during the creation phase. This makes CATIA Imagine & Shape fully suitable for body design in automotive industry. CATIA V5R21 reach functional completeness and V5-V6 feature equivalence for CATIA Icem products CATIA V5R21 extends its advanced and powerful freeform surface modeling, modification and analysis capabilities within the Class A modeling domain. V5R21 improves the Quality of the produced surfaces with more efficient tools to validate shape quality. User efficiency & Workflow are also improved thanks to a dedicated modeling environment embedding an adapted user interface. This completes the feature set alignment of V5R19, V5R21, and V6R2012. CATIA V5R21 keeps improving mechanical surfacing design technologies with Loft command enhancements. The Loft command has been enhanced to define continuity in curvature (G2) with section supports or guide supports where previously only tangent continuity was supported. This new capability increases the quality of the Loft because you can define precisely which continuity you want to apply on sections and guides. Another improvement lets you create a surface with a punctual extremity in one shot. In the Loft command, one section and two guide curves intersecting each other at one extremity are sufficient to create such shapes, resulting in increased productivity. Mechanical CATIA V5R21 improves CATIA Sketcher for a better accuracy of design in context CATIA Part Design brings time saving in Conceptual Design phase thanks to new associativity that exists now between reflect lines or internal profiles and the product shape. You can then refine accurately a design with 2D geometric details from the associative silhouette of its 3D faces/features. The area included in this outline can also be used to show a specific treatment area. Projection and intersection curves provides user with the same ability. CATIA V5R21 enhances exchanges of conceptual study data through external 2D formats. Conceptual study may starts from 2D legacy data, with the direct import of DXF and DWG files, dealing the content of each 2D layer into a specific sheet. The concept can then be studied taking advantage of the overlaid sheets, as well as of any relevant 3D data. Generating all this data into a single drawing sheet ensures sharing it using 2D external formats whenever needed. CATIA V5R21 delivers more flexibility for design pattern annotations CATIA V5R21 brings more flexibility to the user in the definition of tolerances and annotations of pattern of holes. Each pattern instance can get its own semantic annotation. Distance and position annotations are automatically proposed to the user during the pattern creation step, thus providing a significant productivity gain.