On Wed, Apr 17, 2019 at 09:50:42PM +0100, Joseph Wright wrote: >Working on some low-level support for hyperlinks, I've come across the >hypdivps package (https://ctan.org/pkg/hypdvips). It's largely about >doing stuff in DVI mode that pdfTeX/LuaTeX in PDF mode can do anyway. >However, there is one PDF feature that hypdvips can use that doesn't >seem to show up in pdfTeX or LuaTeX: QuadPoints. > >Briefly, QuadPoints allow an annotation to an area defined by multiple >rectangles contained within the outer /Rect boundary. The usefulness >appears when breaking a link across lines: using QuadPoints, this is a >single object rather than multiple ones. pdfTeX and LuaTeX handle >breaking links and creation of the necessary annotations, but don't do >that using QuadPoints. I wonder if this was > >- Never considered >- Considered but not at the time feasible (viewer support?)
Only Acrobat (Reader) seems to support QuadPoints. They were used to produce rotated and sheared links: https://tex.stackexchange.com/a/417546 Alexander >- Considered but too complex to implement >- Tried but buggy or otherwise defective > >Does anyone have any insight? I can see only one mention of QuadPoints >on the pdfTeX list >(https://tug.org/pipermail/pdftex/2007-February/007028.html). > >Joseph >
