Insert Fiducial Points

Fiducial points are used in SScanSS to determine the position and orientation of a sample after it has been moved to instrument. The fiducial points will be rendered as spheres in the graphics window.

Loading fiducial points from file

To import a Fiducial point file (.fiducial), Go to Insert > Fiducial Points > File…, browse to the location of the file and select it.

Note

Imported points will not replace existing points but will be appended to them. Delete old points from point manager if necessary.

Key-in fiducial points

Click Insert > Fiducial Points > Key-In and type in the X, Y, and Z values of the fiducial points and click Add Fiducial Point button. The fiducial point should be displayed in the graphics window

Key-in Fiducials Window

Manage fiducial points

Fiducial points can be viewed and managed via the point manager. The point manager will be opened when fiducial points are added, if the point manager is closed it can be opened by selecting View > Other Windows > Fiducial Points in the menu. Points can be edited, re-ordered, deleted, enabled or disabled from the manager, and these operation can be undone (Ctrl+Z) if needed. The point manager displays the X, Y, Z coordinate of the point and the enabled status in a table. Selecting a point from the manager will cause the corresponding 3D model to be highlighted in the graphics window, this can be useful when attempting to identify specific points.

Point Manager Window

Edit fiducial points

Double click a table cell, type in the new value and press the Enter key to accept the change.

Re-order measurement points

Select a row and move the row by clicking the up and down buttons.

Delete measurement points

Select one or more rows and click the delete button. Multiple rows can be selected using Shift + Left Mouse Click or Ctrl + Left Mouse Click.

Enable/Disable fiducial points

Click the check box in the fourth column of the desired point to enable or disable it. Click the check box in the fourth column header to enable or disable all points.

Export fiducial points

The fiducial points can be exported from project file to a Fiducial point file (.fiducial). Click File > Export… > Fiducial Points in the main menu, navigate to the desired save location in the file dialog, enter a name for the file and press the Save button.