[NTG-context] Re: How to improve appearance of bars in frac, sqrt, etc. on screens?

[Hans Hagen via ntg-context <ntg-context@ntg.nl>]

On 6/14/2024 9:35 AM, Henning Hraban Ramm wrote:
> Am 13.06.24 um 23:13 schrieb Hans Hagen via ntg-context:
>> On 6/13/2024 10:04 PM, Otared Kavian wrote:
>>> Hi Ralph,
>>>
>>> I don’t see any pixels in the PDF file when I typeset your code 
>>> snipet (on MacOS 11.7.10). Here is what I get.
>> No problems on windows on chrome-os either. Mikael S and I checked it 
>> on his linux box and one can indeed see anti aliasing when taking a 
>> screen dump (depends on resolution).
>>
>> So it's a linux rendering issue when taking dumps. 
> 
> Not only. It also happens with all(?) PDF viewers on MacOS – at least 
> 10.14 and 10.15, can anyone confirm with current versions?
> 
> So it’s dependend on the screen rendering, anti aliasing settings (that 
> you usually can’t influence).

hm, so i have to stick to windows for viewing (and an ancient hardware 
laptop in order to avoid copilot and recall) but i'll check ubuntu anyway

> It doesn’t affect printing – or does it for anyone? I can imagine 
> printing from Firefox, i.e. pdf.js, is affected, since it prints only in 
> screen resolution.
it's not related to math then, as there are also ligatures built this 
way, although often they often are less sensitive to thsi due to 
generous overlaps (unless they use a sequence of connecting strokes in 
the same direction)

also keep in mind that looking at a blown up character is not that 
realistic (for instance a traditional bitmap font might look great at 
600 or 1200 dpi at intended size so zooming in showing raggedness is not 
the normal way to see it)

btw, if one wants to observe inaccuracy, just zoom in in graphics made 
by drawing programs (even of famous companies)

Hans


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