Anchors, links, and strokes all can refer to values entered in the ‘cvt’ table. If Visual TrueType doesn’t assign a default ‘cvt’ entry, you can do it yourself. You also can re-assign an anchor, link, or stroke to a different ‘cvt’ value.
You can assign or change the ‘cvt’ entries to visual hints by right clicking the highway sign on the hint and selecting te appropriate ‘cvt’ entry. To display the highway signs, go to the Display Options dialog on the Display menu, and enable the CVT and CVT numbers options.
· Because more than one hint can refer to the same ‘cvt’ value, the large highway signs are handy for reviewing the ‘cvt’ values for all hinting at the same time. However, if the glyph has extensive hinting, the highway signs might obscure some of what you may want to see.
· The small highway signs leave the hinting more visible on the screen. To see the ‘cvt’ number, use a hinting tool to check highway signs one at a time.
To display or hide the signs, you use commands from the Visual TrueType menu (these same commands appear as check boxes in the dialog box for the Options command on the Display menu).
Right-clicking on a highway sign with a hinting tool displays a list of entries from the ‘cvt’ table:
The selected entry is the one already associated with the hint or, if none exists yet, Visual TrueType’s best guess, plus a dozen neighboring entries from the ‘cvt’ table. You can scroll this list to select another entry.
To change the cvt assignments via keyboard, edit the values directly in the VTT Talk window and recompile the program by pressing Ctrl + R.
For details about assigning ‘cvt’ values to hints, see “Working with Anchors” as well as “Controlling Distances,” and “Controlling Diagonals and Italics.”
To display the small unnumbered highway signs
1. Click Options on the Display menu
2. Select the CVT option.
To display the large numbered highway signs
1. Click Options on the Display menu.
2. Verify that the CVT option is enabled.
3. Select the CVT Numbers option.
To hide all highway signs
1. Click Options on the Display menu
2. Disable the CVT option.