Hi Herbert,
Yes, of course you can do this. Some examples:
zoom -z=4 *
This will apply a 4:1 zoom factor to all open images.
zoom -f *_B*
Apply the 'zoom to fit' action to all images including '_B' in their identifiers.
If you enter 'help zoom' you'll get detailed information on the zoom command. Here is the result for your convenience:
help zoom
The zoom command sets the current zoom ratio for a set of views.
Usage: zoom [<arg_list>] [<image_id_list>]
-z=<n> | --zoom-factor=<n>
<n> is the new zoom factor in the range [-32,+100]. Positive values are
zoom-in (magnifying) factors. Negative values indicate zoom-out
(demagnifying) factors. The zero and -1 values are reserved and must
not be used. +1 corresponds to the 1:1 (actual size) zoom ratio.
-i | --zoom-in
Selects the zoom-in mode. Current zoom factors are incremented.
-o | --zoom-out
Selects the zoom-out mode. Current zoom factors are decremented.
-f | --fit
Selects the zoom-to-fit mode. Zoom factors are automatically calculated
such that target views fit in the workspace completely.
--fit-no-zoom
Same as --fit, but no magnification is allowed.
--fit-view
This option does not change current zoom rations. It resizes target
windows so that they fit their current views completely, if this is
possible without exceeding workspace limits; otherwise windows are
resized to occupy the whole workspace, in one or both axes.
--help
Displays this help and exits.
The information given is slightly outdated. The minimum zoom factor is now -100, that is, the allowed range of zoom factors is [–100,+100]. This command should provide arguments to apply an optimal fit action, as well as more control on the target images. I'll implement them in the next version.
