# Vertical

[Vertical] command will update CPlane by the steps:

- Determine the CPlane origin.
- Determine the CPlane X-axis.

Y axis of the updated CPlane will be so determined that Y axis is vertical to pre-updated CPlane.

## Step 1

While "Specify the origin of CPlane" prompt is displayed, specify the new origin of the CPlane.

## Step 2

While "Specify X axis" prompt is displayed, specify the new X axis direciton of the CPlane. The straight line from the origin specified in Step 1 to the point specified in this step will be X axis of the after-updated CPlane.

After-updted X axis will be shown dynamically following to the mouse movement in the screen preview.