Re: [NTG-context] Define color with calculations
On 19/02/19 10:33 AM, Wolfgang Schuster wrote:
> Mohammad Hossein Bateni schrieb am 18.02.19 um 04:37:
>> Hi,
>>
>> When I use definecolor, (how) can I use computations in setting the
>> value of a component? Something like the following...
>>
>> \definecolor[mycolor][r=0.5*0.7]
>
> \starttext
>
> \colored[r=\cldcontext{0.5*0.7}]{\cldcontext{0.5*0.7}}
>
> \colored[r=\cldcontext{"\letterpercent
> .3f",0.5*0.7}]{\cldcontext{"\letterpercent .3f",0.5*0.7}}
>
> \stoptext
>
Better use \luaexpr. From the manual:
The \luaexpr command can also better deal with for instance conditions,
where it returns true or false , while \cldcontext would interpret the
boolean value as a special signal.
Although I think my solution is superior because you can just type
\eval{1.0*sin(pi)}
instead of
\eval{1.0*math.sin(math.pi)}
> Wolfgang
>
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Re: [NTG-context] Define color with calculations
Mohammad Hossein Bateni schrieb am 18.02.19 um 04:37:
Hi,
When I use definecolor, (how) can I use computations in setting the
value of a component? Something like the following...
\definecolor[mycolor][r=0.5*0.7]
\starttext
\colored[r=\cldcontext{0.5*0.7}]{\cldcontext{0.5*0.7}}
\colored[r=\cldcontext{"\letterpercent
.3f",0.5*0.7}]{\cldcontext{"\letterpercent .3f",0.5*0.7}}
\stoptext
Wolfgang
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Re: [NTG-context] Define color with calculations
Thanks, Henri! Works like a charm.
On Sun, Feb 17, 2019 at 11:03 PM Henri Menke wrote:
> Use Lua.
>
>
> \def\eval#1{\ctxlua{%
> local context = context
> local _ENV = math
> context(#1)
> }}
>
> \definecolor[mycolor][r=\eval{0.5*0.7}]
>
> \starttext
>
> \color[mycolor]{Hello!}
>
> \stoptext
>
>
>
> On 18/02/19 4:37 PM, Mohammad Hossein Bateni wrote:
> > Hi,
> >
> > When I use definecolor, (how) can I use computations in setting the value
> > of a component? Something like the following...
> >
> > \definecolor[mycolor][r=0.5*0.7]
> >
> > Thanks,
> > ~MHB
> >
> >
> >
> ___
> > 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://context.aanhet.net
> > archive : https://bitbucket.org/phg/context-mirror/commits/
> > wiki : http://contextgarden.net
> >
> ___
> >
>
>
> ___
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
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>
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Re: [NTG-context] Define color with calculations
Use Lua.
\def\eval#1{\ctxlua{%
local context = context
local _ENV = math
context(#1)
}}
\definecolor[mycolor][r=\eval{0.5*0.7}]
\starttext
\color[mycolor]{Hello!}
\stoptext
On 18/02/19 4:37 PM, Mohammad Hossein Bateni wrote:
> Hi,
>
> When I use definecolor, (how) can I use computations in setting the value
> of a component? Something like the following...
>
> \definecolor[mycolor][r=0.5*0.7]
>
> Thanks,
> ~MHB
>
>
> ___
> 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://context.aanhet.net
> archive : https://bitbucket.org/phg/context-mirror/commits/
> wiki : http://contextgarden.net
> ___
>
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[NTG-context] Define color with calculations
Hi, When I use definecolor, (how) can I use computations in setting the value of a component? Something like the following... \definecolor[mycolor][r=0.5*0.7] Thanks, ~MHB ___ 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://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
