On 14-Nov-18 11:36 PM, Stephan Witt wrote: > Am 12.11.2018 um 18:53 schrieb Baris Erkus <bariser...@hotmail.com>: >> On 11/12/2018 4:36 PM, Stephan Witt wrote: >>> Am 12.11.2018 um 14:03 schrieb Stephen Buonopane <sbuon...@bucknell.edu>: >>>>> On Nov 12, 2018, at 7:52 AM, Baris Erkus <bariser...@hotmail.com> wrote: >>>>> >>>>> On 12-Nov-18 3:38 PM, Kornel Benko wrote: >>>>>> Am Montag, 12. November 2018 13:21:58 CET schrieb Daniel >>>>>> <xraco...@gmx.de>: >>>>>>> On 11/11/2018 19:14, Paul A. Rubin wrote: >>>>>>>> On 11/10/18 9:45 PM, Baris Erkus wrote: >>>>>>>>> Hello, >>>>>>>>> >>>>>>>>> PDF graphics appears to be blurred in LyX when scaled from Graphics >>>>>>>>> Options --> LaTeX and LyX options --> Show in LyX --> Scale on Screen. >>>>>>>>> >>>>>>>>> I am not sure if this is a feature to reduce CPU rendering workload or >>>>>>>>> smtg, but it would be really nice to have a clear view of the PDF >>>>>>>>> while working on the document rather than looking at it using a PDF >>>>>>>>> viewer. >>>>>>>>> >>>>>>>>> See MWE and the view from LyX below. >>>>>>>>> >>>>>>>>> Baris >>>>>>>>> >>>>>>>>> >>>>>>>> The image in your PDF file is a bitmap (PNG), so I don't hold out much >>>>>>>> hope for being able to zoom it without loss of fidelity. >>>>>>> Why do you think the graphic in the PDF is a bitmap? I have zoomed in on >>>>>>> it and never got any pixels to see. At least it must be an extremely >>>>>>> high resolution bitmap then. >>>>>>> >>>>>>> Daniel >>>>>>> >>>>>> Because PNG format is bitmap? >>>>>> PNG image data, 652 x 668, 8-bit/color RGB, non-interlaced >>>>>> >>>>>> Kornel >>>>>> >>>>> The external graphics is in PDF, which is attached to the original >>>>> e-mail; it was generated in Tikz, so it is a vector graphics. No >>>>> question about it. When inserted into LyX, maybe LyX creates a >>>>> temporary bitmap or PNG file to show to the user, I am not sure. >>>>> >>>>> It should not be a big thing to show a higher resolution graphics or to >>>>> let the user decide for possible performance issues. One day I will be >>>>> doing all these small modification by myself, but when that I do not >>>>> know... :-) >>>>> >>>>> Baris >>>> Yes LyX creates a PNG file for the on-screen preview within LyX (It also >>>> does this for the math preview) >>>> If you dig into the LyX temp directory you will find all of the PNG files. >>>> >>>> I recall that an older version of LyX (on Mac) did not use PNG for >>>> on-screen previews, in which case it may be possible to revert to the >>>> older behavior even in 2.3.X? >>> There are fundamental differences between the handling of SVG and PDF files >>> in LyX. >>> >>> LyX is using Qt plugins to render the images on screen. >>> >>> For PDF files one has to convert them to temporary bitmap files because >>> there is no plugin to render them directly. (Perhaps this is not true >>> anymore.) For SVG files there is a plugin. But this one is limited in >>> functionality. There was a decision to not use it for on-screen display >>> because of the complaints regarding missing details. >>> >>> The problem with the temporary images is the fixed resolution of the >>> generated images. The used cache is not invalidated in case of higher >>> preview zoom levels. Furthermore you can have different resolutions at >>> runtime too. In case of a machine with multiple monitors with different >>> physical resolutions you get different values for moving the LyX window >>> around. >>> >>> Stephan >> This makes sense. Do you think it is reasonable that I put this as a >> wish to the tracker? > I think it’s already there… but couldn’t find it ATM. > > Stephan
I opened a ticket as a request... https://www.lyx.org/trac/ticket/11379