Scroll enabled display

For cubes of large size the option to have part of the cube scrolled out of view is provided. When set this option usually enables the usable upper cube size limit to be increased. The upper cube size limit for standard cubes with unmarked centres is different to that for cubes with marked centres. For many computers an upper cube size limit of 99 (the program limit) is achievable when scrolling is enabled for unmarked cubes with a facelet width (excluding border) of 2 pixel. For many computers an upper cube size limit of about 32 is achievable when scrolling is allowed for numerically marked cubes with a facelet width (excluding border) of 8 pixel. It was found that at least 8 pixels were required for displaying a facelet with numerical marking. When scrolling is disallowed the upper limits are usually lower and dependent mainly on the monitor's resolution.

Because scrolling part of the cube out of view is a compromise, an option needs to be set to allow it, and even when that option is set, cube size must exceed a lower limit to enable it to occur.

When scrolling is enabled it is assumed that part or all of the lower face is what most users would wish to be the default section of the cube that is hidden from view. If Auto mode is selected only the lower (D face) can be partially obscured. Applying a WR move will, of course, bring it fully into view. In Manual mode the user can select the scroll position but that position will remain fixed after the "Command Sequence for . ." dialog opens. To change the scroll position the "Command Sequence for . ." dialog must be closed.

Since elapsed time should not be hidden it is placed at the top when scrolling is enabled.