Transforming Geometry by Affinity

You can transform geometry by means of an affinity operation.

Before you begin: Create a 3D shape containing a geometric element.

  1. Click Affinity .

    The Affinity Definition dialog box appears as well as the Tools Palette.

    For further information about the Tools Palette, refer to Selecting Using Selection Traps in the Infrastructure User's Guide.

  2. Select the Element to be transformed by affinity.

  3. Specify the characteristics of the Axis system to be used for the affinity operation:


    • the Origin

    • the XY plane

    • the X axis

  4. Specify the affinity Ratios by entering the desired X, Y, Z values.



    Ratios X = 2, Y =1 and Z=1

    Ratios X = 2, Y =1 and Z=2

    Ratios X = 2, Y =2.5 and Z=2

  5. Click OK to create the affinity element.

    The element (identified as Affinity.xxx) is added to the specification tree.