> 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?
