Creating a Section/Auxiliary View  

This task shows you how to create a section view, a section cut or an auxiliary view in an existing layout.

Open the viewprojection.CATPart document. Select Start > Mechanical Design > 2D Layout for 3D Design to open the layout in the 2D window, alongside the 3D window.
  1. Click Line in the Geometry Creation toolbar.

  2. Use the vertical axis to define the cutting profile as shown below, and double-click to end the line creation.

    You could also draw a profile consisting in multiple segments to create an aligned section view/cut or an offset section view/cut. For more information, refer to Creating a Multi-Plane Section View.
  3. Click New Section/Auxiliary View in the Layout toolbar (Views sub-toolbar).

     
  4. Select the line you have just created as the cutting profile.

    You cannot select geometry which does not belong to the active view.

    The Tools Palette toolbar is automatically displayed with the following options:

    • Auxiliary View: Creates an auxiliary view.

    • Section View: Creates a section view.

    • Section Cut: Creates a section cut.

    • Create Datum: activate this option to create a non-associative view. By default this option is not activated.
      This option is available only when selecting the New View From command.

       

    These options are also available from the contextual menu.
    Furthermore, the contextual menu display the Invert Normal option, that is also available directly in the view, via green manipulators.
  5. Click Section View .

  6. Click on the sheet at the location where you want the section view to be positioned.

    • Positioning the view defines the section view direction, in accordance with the projection method.
      The projection method (First angle standard or Third angle standard) is defined by the sheet style, as specified in the standard used by the layout. For more information, refer to Sheet Styles in the Administration Tasks chapter. You can change the projection method by editing the layout sheet properties (using Edit > Properties).
    • Section/auxiliary views are always created using the scale of the current view.
    • If you change the sheet scale (defined in the sheet properties), the scale of all existing views (defined in the view properties) is multiplied by that of the sheet (for example, if existing views already have a scale of 1/10, and if you change the sheet scale to 1/10, then existing views will now have a scale of 1/100).

    Note how the view is previewed in the part window. You need to zoom out, as the view box defined in the ISO_3D standard used by the current layout has sides of 1000mm. For more information on the standards, see Administration Tasks.

    The section view is created, with its plane perpendicular to the active view. Additionally, the Section view item is added to the specification tree.

  7. Double-click the section view to activate it. You can now create 2D geometry in this view.