1. Select the interpolation degree in the Interpolation Degree dropdown list in the Focus Surface and Support Points section.
  1. You have successfully created a global focus surface.
  2. You can now set up your tile experiment using the sample carrier. Further information on this can be found under: Using Sample Carriers. To ensure the tiles are acquired along the focus surface during the experiment the software automatically selects the most appropriate focus strategy in the Focus Strategy tool. For information on focus strategies read the chapter Working with Focus Strategies.

The minimum number of support points necessary is indicated in the Interpolation Degree dropdown list for each entry. The calculation is more solid if the number of support points exceeds this minimum number. We therefore recommend that you only increase the interpolation degree as far as the surface of the carrier demands, even if you have created more support points. If the number of support points does not correspond to the minimum number for the selected interpolation degree, the interpolation degree will be reduced automatically. Interpolation degree1 – Tilted Plane (at least 4 support points) is typically sufficient to compensate for any tilting of the sample carrier.