Pierre-Francois Bonnefoi schrieb am 11.02.19 um 12:35:
Hello,
I try to define automatically some macros to include cliparts in my TikZ
drawings and I've defined the following macro :
\def\clipart#1#2{%
\expandafter\def\csname tk#1\endcsname{\dosingleempty\expandafter\csname
dotk#1\endcsname}%
\expandafter\def\csname
dotk#1\endcsname[##1]{\iffirstargument\image{cisco/#1}{##1}\else\image{cisco/#1}{#2}\fi}
}
\clipart{pc}{.8} % defines the macro \tkpc to include the picture "cisco/pc"
The issue arises when I use the newly defined \tkpc : the argument is not
optional and I have to put \kpc[.5] for example.
To add insult to injury, the value passed in argument is ignored also :
\iffirtargument return always false...
Do you have any idea ?
\define[2]\clipart
{\setuvalue{tk#1}{\dotripleempty\doclipart[#1][#2]}}
% \def\doclipart[#1][#2][#3]%
% {\image{cisco/#1}{\ifthirdargument#3\else#2\fi}}
\def\doclipart[#1][#2][#3]%
{\ifthirdargument
\image{cisco/#1}{#3}%
\else
\image{cisco/#1}{#2}%
\fi}
Wolfgang
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