[NTG-context] m-graph label

[Alan]

On Sat, 16 Jul 2022 13:21:06 -0400
John Kitzmiller via ntg-context <ntg-context at ntg.nl> wrote:

> The horizontal axis label of mwe below has 0.0 (showing tenths; pdf
> attached; filename is mwe.tex).
> 
> I expected it to show -1, 0, 1, 2, 3, (integers only). Can this be
> formatted?
> 
> % -1 1
> % 0 1
> % 0 2
> % 1 1
> % 2 1
> % 2 2
> % 2 3
> % 2 4
> % 3 1
> % 3 2
> 
> \usemodule[m-graph]
> \startMPpage[instance=graph, offset=5mm]
> labeloffset:=3mm;
> draw begingraph(8cm,4cm);
>   setrange(-1.5,0.5,3.5,5);
>   picture symbol ;
>   symbol := image(draw fullcircle scaled 5mm withcolor red;);
>   gdata("mwe.tex", v,
>           clearxy;
>             glabel(symbol,v1,v2) ;
>            );
>     frame.bot shifted(0,-2mm) ;
>     autogrid(otick.bot,) shifted(0,-2mm);
> endgraph;
> \stopMPpage
> 
> Thanks! John

% Autoform                       is the format string used by autogrid
% Autoform_X, Autoform_Y         if defined, are used instead 

string Autoform ; Autoform = "%g";

% string Autoform_X ; Autoform_X := "@.0e" ;
% string Autoform_Y ; Autoform_Y := "@.0e" ;