Thank you Martin, for clarification!
> Am 30.11.2021 um 20:49 schrieb Martin Budaj <[email protected]>: > > On Tue, Nov 23, 2021 at 4:42 PM Andrew Atkinson <[email protected]> wrote: >>> On 23/11/2021 15:08, Benedikt Hallinger wrote: >>> >>> I don't know PDF specifics, but it would be very handy to have "nested" >>> layers, i.e. submaps as separate layers in the main layer. >> >> That would be very useful, don't know if it is possible > > There is some support for a tree-like hierarchy of the optional > content layers in the PDF specification, but you can't select/unselect > a group of sublayers at once. See the attached picture for an > illustration: you can change the visibility of the lowest-level maps > (the "leafs") only, not the higher-level maps or groups (the > "branches"). So it's not very helpful in this case except for having > some labels indicating the hierarchical structure of maps. > If all the tree was interactive, we could simply expand it to all > sub-maps to have complete and easy control of the displayed content. > > Martin
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