Re: Quad-PLOT revisited

[Christian Robert]

Looks like Jurgen is on vacation or on a long weekend...

I changed slightly the source of Plot_gtk.cc to fix the problem. Only 3 lines 
modified.

$ diff Plot_gtk.cc /share/Plot_gtk.cc
176c176
<         const double dlta = 2.0 * size;
---
>         const double dlta = 1.0 * size;
185,186c185,186
<         const double dlta = 1.414213562 * size;
<         cairo_rectangle(cr, P0.x - dlta,  P0.y + dlta, 2*dlta, 2*dlta);
---
>         const double dlta = 0.7071067812 * size;
>         cairo_rectangle(cr, P0.x - dlta,  P0.y - dlta, 2*dlta, 2*dlta);


seems to solve the problem and scale well with point_size.

Attached "Before" and "After" sample Graph, and also Plot.apl test workspace

Xtian.

      )LOAD Plot.apl

      Legend Plot Beautiful


On 2020-08-15 04:28, Christian Robert wrote:
> I understand my previous report was very unclear. Trying to describe a visual 
> thing in english words while you're speaking french is not obvious,
> so I included a snapshot of the plotted window and I will describe the really 
> small problems I see.
>
>   1) the square and the diamond are way too large, they should display the same 
> size as the up triangle and the down triangle, no more.
>
>   2) it is obvious that the square is displayed UNDER the line in contrary of 
> all other symbols who are right on the line.
>
>
> Xtian.
>
> (Une image vaux mille mots)

Before.png
Description: PNG image

After.png
Description: PNG image

Plot.apl
Description: Text document