Using Bounds

You can use a bound to define a region in the scatter plot. A bound can either be an extrapolated line or closed to a polygon depending on how you set the endpoints of the bound.

Extrapolated bound:

Closed bound:

You can perform the following actions:

To add a bound

To add a bound, you must have assigned signals to the scatter plot first.

  1. Click .

  2. Select Add Bound from the drop-down menu.

    A hand symbol with a cross-hair appears.

  3. Move the cross-hair to the first endpoint of the bound and click.

    The endpoint is fixed.

  4. Move the cross-hair to the next endpoint.

    As a preview, a connection line between the fixed and the current endpoint is shown.

  5. If the position is correct, click.

    The endpoint and the connection line are fixed.

  6. Repeat the steps 4 and 5 until you have defined all endpoints.

    Note that you cannot create a bound with intersected lines.

  7. To correct the last fixed endpoint, press Backspace and move the cross-hair to a new endpoint.
  8. To delete the complete preview with all fixed endpoints, press Esc.
  9. To complete the bound, do one of the following:

    • Press Return.

      The ends of the bound are extrapolated to infinity. If these extrapolated lines are intersected, the bound is automatically closed to a polygon.

    • Add the last endpoint onto the coordinate of the first endpoint.

      The bound is closed to a polygon.

To close or extrapolate a bound

  1. To change a closed bound into a extrapolated bound or vice versa, right-click the connection line of the bound.
  2. Do one of the following:
    • For a closed bound, select Extrapolate Bound.
    • For an extrapolated bound, select Close Bound.

To delete a single bound

  1. Click the connection line of the bound.
  2. Click .

  3. Select Delete Bound from the drop-down menu.

    Alternatively, press Del.

To delete all bounds

  1. Click .
  2. Select Delete All Bounds from the drop-down menu.