Add labels to a grid (Metafun)

Add labels to a grid (Metafun)

[Fabrice Couvreur]

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To add labels to a grid, Hans wrote a macro hlintext (Min, Max, Step, Lenght
, Format). I do not know what to put in "Format".
Best regards,
Fabrice

\definecolor[mycolor][c=.4,m=0,y=0,k=0]
\starttext
\start
\switchtobodyfont[small]
\startMPcode
     input tex;
     numeric xmin, xmax, ymin, ymax;
     xmin := 0; xmax := 22; ymax :=460 ;ymin:=0; u := 0.5cm; v:= 0.025cm;
     drawoptions(withpen pencircle scaled 0.5pt withcolor
\MPcolor{mycolor});
     draw hlingrid(ymin,ymax,20,11.5cm,11cm);
     draw vlingrid(xmin,xmax,2,11cm,11.5cm);
     drawoptions(withpen pencircle scaled 1pt) ;
     drawarrow (0,0)--(22,0) scaled u ;
     drawarrow (0,0)--(0,460) scaled v ;
     for i=0 step 2 until 20 :
        label.bot(TEX("$"&decimal(i)&"$"),(i,0)*u);
     endfor;
     for i=0 step 20 until 440:
        label.lft(TEX("$"&decimal(i)&"$"),(0,i)*v);
      endfor;
     label.bot( "$x$",(10.8cm,-0.1cm)) ;
     label.rt( "$y$",(0.1cm,11.3cm)) ;

\stopMPcode
\stop
\stoptext

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Re: Add labels to a grid (Metafun)

[Alan BRASLAU]

On Fri, 6 Mar 2015 18:15:09 +0100
Fabrice Couvreur <fabrice1.couvreur@gmail.com> wrote:

> To add labels to a grid, Hans wrote a macro hlintext (Min, Max, Step,
> Lenght, Format). I do not know what to put in "Format".

it is a string format specifier such as "%g", "%f", "%d", ...
Since the % can sometimes cause problems being interpreted as a comment
character, it is usually replaced in Metafun by @, as in "@g".

Alan
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If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Add labels to a grid (Metafun)

[Fabrice]

thank you very much Alain, I think I understood for the format "@d" but 
for other formats, I will need documentation.
Fabrice

\definecolor[mycolor][c=.4,m=0,y=0,k=0]

\starttext
\start
\switchtobodyfont[small]
\startMPcode
      xmin := 0; xmax := 22; ymax :=460 ;ymin:=0; u := 0.5cm; v:= 0.025cm;
      drawoptions(withpen pencircle scaled 0.5pt withcolor 
\MPcolor{mycolor});
      draw hlingrid(ymin,ymax,20,11.5cm,11cm);
      draw vlingrid(xmin,xmax,2,11cm,11.5cm);
      drawoptions(withpen pencircle scaled 1pt) ;
      drawarrow (0,0)--(22,0) scaled u ;
      drawarrow (0,0)--(0,460) scaled v ;
      draw vlintext(0,20,2,10cm,"@d") shifted (0,-0.25cm) ;
      draw hlintext(0,420,20,11cm,"@d") shifted (-0.35cm,0) ;
      label.bot( "$x$",(10.8cm,-0.1cm)) ;
      label.lft( "$y$",(-0.1cm,11.4cm)) ;
\stopMPcode
\stop
\stoptext

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________