[Scilab-users] Default grid color = grey? Increase the zoom factor (per wheel step)?

[Claus Futtrup]

Hi Scilabers and Samuel

I normally don't have good luck with zoom or rotate functions, so I 
don't use this feature, but I also rarely am plotting in 3D - and in 
classic 2D I just continue until I have the right plot size (no need to 
zoom).

P.S. For grid color, it's OK to keep it black and avoid trouble with 
colormaps.

P.P.S. Regarding the size of the plot window (figure.size), it's 
standard [626,587] and I find it a bit small. Maybe it's a good size if 
your screen is 1024 x 768 (?), but I think most computers these days are 
with 1366 x 768 or larger screens (mine is 1920 x 1080 on a 14 inch 
screen). We should avoid the plot window to be too big for anybody (that 
would be frustrating), but could the plot be rescaled depending on 
screen resolution? I find myself typically increasing figure.size by 50%.

Best regards,
Claus

On 13-02-2021 00:14, Samuel Gougeon wrote:
>
> Dear all,
>
> *1)*
> After 
> http://mailinglists.scilab.org/Scilab-users-Default-x-y-z-labels-and-title-font-size-2-tp4041291p4041297.html 
> :
>
> Le 02/02/2021 à 17:02, Claus Futtrup a écrit :
>> .../...
>> You mention grid. I always do xgrid(color("grey70"));
>
> So do i.
>
>> ... is this default now, to have the grid a bit greyed?
>
> The issue with a non black or white color is that, if the current 
> colormap does not have it, then the color is automatically appended to 
> the colormap.
> With the current colormap implementation as a figure's property, this 
> may have some side effects for plotting functions like grayplot() 
> whose rendering in "scaled" mode spans the whole colormap, including 
> the appended gray that we do not wish to include in the plot rendering...
>
> This is why carefully tuning the default grid style /density/ was 
> required, as discussed in the description of the report #15421 
> <http://bugzilla.scilab.org/15421>, implemented in Scilab 6.0.2 (so 
> even before 6.1.0).
>
>
> *2)* Too small zoom factor
> On any graphic, zooming by a factor 2 (in size) requires 11 wheel steps!
> To me, this is too slow. In another similar software, /each/ wheel 
> step increases the scale by the same factor 2.
> This is likely too much, but don't you think we could increase a bit 
> the Scilab zoom factor?
>
> Hope reading you soon.
>
> Regards
> Samuel
>
>
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