Re: invisible grid in current CVS

[Allin C. <cot...@wf...>]

On Fri, 25 Jul 2014, Ethan A Merritt wrote:

> On Friday, 25 July, 2014 20:18:33 Allin Cottrell wrote:
>> I'm comparing the grid lines shown by gnuplot 4.6.5 and gnuplot 5.0 rc1
>> (CVS as of 2014-07-25) for the following script:
>>
>> set term pngcairo
>> set output 'test.png'
>> set grid ytics
>> plot sin(x)
>>
>> In 4.6.5 the grid is fairly discreet but clearly visible. In CVS it's
>> pretty much subliminal, barely visible. Is this intended?
>
> I was just noticing the same thing in some plots I was preparing today.
> Not sure what's going on there.
> The grid is also [supposed to be] dotted, so maybe there is an
> interaction between the new dot/dash code and the grid linetype?

Follow-up: various terminals that behaved cconsistently in respect of grid 
lines in 4.6.5 (all showing suitable dotted black lines) now behave quite 
differently in CVS. Three that are of particular interest to me behave 
thus:

pngcairo: grid lines practically invisible (not good, too light)
pdfcairo: grid lines solid black (not good, too heavy)
postscript, eps: still OK, as in 4.6.5.

I've taken a look at what I take to be the relevant source, but I can't 
grok all the macros that seem to be doing the work.

Allin Cottrell