Scaling a Curve

This task shows you how to scale a curve along one, two or all axes.

Open the ModifyCurve3.CATPart document.

  1. Click Modification .

  2. Select the curve.

  3. Click Transformations .

  4. Click Affinity .

    A 3D box appears around the selection.

  5. Click the curve to position the manipulators depending on the mouse cursor position.

  6. Move the mouse cursor to highlight the desired rotation axis.
 

Along one axis
 

  1. Hold the left-mouse button and drag one of the axis to affine the elements.

  2. Release the left-mouse button when you are satisfied with the new position of the surface.
 

Along two axes
 

  1. Select the arc of circle.

  2. Hold the left-mouse button and move the mouse to affine the elements.

  3. Release the left-mouse button when you are satisfied with the new position of the surface.
 

Along three axes
 

  1. Press the Ctrl key.

  2. Hold the left-mouse button and move the mouse to affine the elements.

    You can select any axis or handle: the scaling will still be performed along the three axes.

  3. Release the left-mouse button when you are satisfied with the new position of the surface.