From: Henri Menke <henrimenke@gmail.com>
To: ntg-context@ntg.nl
Subject: Re: Define color with calculations
Date: Tue, 19 Feb 2019 10:38:05 +1300 [thread overview]
Message-ID: <27072a31-0e88-cc64-1aa3-1513c7a63482@gmail.com> (raw)
In-Reply-To: <4b11d173-9f9d-482c-8d80-7a8a73ce434b@gmail.com>
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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>
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prev parent reply other threads:[~2019-02-18 21:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-18 3:37 Mohammad Hossein Bateni
2019-02-18 4:02 ` Henri Menke
2019-02-18 16:44 ` Mohammad Hossein Bateni
2019-02-18 21:33 ` Wolfgang Schuster
2019-02-18 21:38 ` Henri Menke [this message]
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