clickable page numbers? about maposmatic HOT 10 CLOSED

That's a very good idea ...

... unfortunately the current version of Cairo Graphics does not have support for adding hyperlinks yet.

Support for that has been added to the upcoming Cairo 1.15 release series, but so far there are only snapshot releases of that and no official stable releases.

from maposmatic.

No worries! Thanks for the consideration.

from maposmatic.

Ubuntu now comes with a Cario Graphics version that has support for PDF links, but the pycairo version is still to old for it as of yet (has pycairo 1.16.2, needs 1.18)

from maposmatic.

I tried to create page number links with self built PyCairo 1.18.1, and it somewhat works, but only if the page number linked to is smaller than the current page aka. the page is already created, links to page numbers larger than the current page, so to pages that will only get rendered in the future, don't work yet.

This turned out to be a known Cairo bug: https://gitlab.freedesktop.org/cairo/cairo/issues/336

from maposmatic.

Found a workaround, page edge arrows are linked to their target pages now.

Still missing:

• links from the overview pages grid to detail pages
• links from index entries to actual map pages

from maposmatic.

See e.g. https://print.get-map.org/results//040800_2018-12-01_23-41_sylt-pdf-link-test.pdf for a map with working links

from maposmatic.

New showstopper: index lines are rendered with Pango, not with CairoGraphics directly, and on that layer PDF Hyperlink support is still missing:

https://gitlab.gnome.org/GNOME/pango/issues/290

from maposmatic.

"links from the overview pages grid to detail pages" now added by putting a transparent rectangle over the page number and having that being linked

from maposmatic.

I saw that Cairo 1.16 was just released. I looked at your test PDF and it looks encouraging. Thank you for carrying on this request.

from maposmatic.

I created a new issue for the missing clickable index entries, so I'm closing this one as the original request has long been fulfilled.

from maposmatic.