DESCRIPTION

These notes summarize the modifications made for spec release 2.10, as finalized on October 21, 1988.

CHANGES

Typing scan_on continues a scan that was aborted. Presently, mesh scans cannot be restarted. Also restarted delta scans (lup dscan and d2scan) will not return the scanned motors to the center position after the restarted portion of the scan completes.

Four-circle users may now assign cut points for angles set by the geometry calculation code. The macro cuts does the assignment. Presently, cut points are used with th, phi, chi and omega. The user specifies the lesser cut point in degrees (integers only), and the angles will be set between that point and that point plus 360 degrees. The azimuth has a pseudo-cut point. If its value is less than zero, the calculated azimuth will be between -180 and 0, otherwise the azimuth will be between 0 and +180.

This release supports the old VENIX operating system on PDP 11/73 computers. See the pdp help file.