[NTG-context] for loop not working in metapost

[NTG-context] for loop not working in metapost

[Shiv Shankar Dayal]

Hi,

I have plotted a log function and I want to draw an xy axis grid.
Below is the code

\starttext
\startMPcode
draw function(1,"x", "log(x)", .1, 10, .01) scaled 1cm;
for i = 0 upto 10:
   draw (i*cm, -5cm) -- (i*cm, 5cm) dashed;
endfor;
for i = -5 upto 5:
   draw (0, i*cm) -- (10cm, i*cm) dashed;
endfor;
\stopMPcode
\stoptext

My first for loop draws lines but the second gives me an error. Please help.
-- 
Respect,
Shiv Shankar Dayal
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___________________________________________________________________________________

[NTG-context] Re: for loop not working in metapost

[Mikael Sundqvist]

Hi,

try "dashed evenly" instead of just "dashed".

/Mikael (did not test...)

On Fri, Aug 30, 2024 at 1:24 PM Shiv Shankar Dayal
<shivshankar.dayal@gmail.com> wrote:
>
> Hi,
>
> I have plotted a log function and I want to draw an xy axis grid.
> Below is the code
>
> \starttext
> \startMPcode
> draw function(1,"x", "log(x)", .1, 10, .01) scaled 1cm;
> for i = 0 upto 10:
>    draw (i*cm, -5cm) -- (i*cm, 5cm) dashed;
> endfor;
> for i = -5 upto 5:
>    draw (0, i*cm) -- (10cm, i*cm) dashed;
> endfor;
> \stopMPcode
> \stoptext
>
> My first for loop draws lines but the second gives me an error. Please help.
> --
> Respect,
> Shiv Shankar Dayal
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
> webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
> archive  : https://github.com/contextgarden/context
> wiki     : https://wiki.contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

[NTG-context] Re: for loop not working in metapost

[Shiv Shankar Dayal]

> try "dashed evenly" instead of just "dashed".
>

Thanks. It works nicely.
-- 
Respect,
Shiv Shankar Dayal
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________