Transform Scaling

The Transform feature is a type of feature modifier. This capability modifies a set of functional features of the active body by applying a transformation to them individually. The affected features retain their full functional behavior.

The command allows you to define four types of transformations:

  • Translation - Translates one or more features.
  • Rotation - Rotates one or more features about an axis.
  • Scaling - Resizes one or more features based on a ratio factor.
  • Symmetry - Applies a Symmetry transformation by reflection.
  • Affinity - Transforms the absolute size by multiplying a scale ratio.
  • Axis to Axis - Transposes the geometry from one reference axis system to another.

A scaling transformation changes the absolute size of a geometric body by multiplying a given scale ratio in a given direction to all the geometric coordinates. The scale information may be defined as follows:

  • Ratio: the scaling factor

  • Reference: The reference geometry that the scale ratio is applied about can be either planar, linear, or a point in space.

This scenario illustrates a scaling transform applied to two functional features at the same time (Shellable Prism and Pocket).


Open the Transform.CATPart document.



  1. Click the Transform icon .
    The Transform dialog box is displayed. Set Transform type:  Scale


  2. Select Features to transform:  Pocket.1 and Shellable Prism.1

  3. Set Reference: xy plane

  4. Set Ratio: 2

  5. Click OK.