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5h
answered How to use optional arguments in newcommand with TikZ in the middle of a path?
1d
comment Lua code with Tikz
Although colossally inefficient the G function definition could be \pgfmathparse{\directlua{tex.print("" .. G(#1))}}% as the math parser can convert the e notation into something pgf can use.
1d
comment Increasing the fontsize in a TikZ picture beyond \HUGE
Possible duplicate of Fonts larger than \Huge?
Jan
19
revised Reverse order of nodes in arbitrary path in TiKZ
added \end{document} to first example
Jan
19
answered How can I draw bars and stars faster?
Jan
18
answered Reverse order of nodes in arbitrary path in TiKZ
Jan
18
comment Cayley Graph of Free Group in TikZ
@yo' so change the reduction in the step (i.e., the R) symbol. For example, using \symbol{R}{\pgfmathsetlength\pgflsystemstep{4/9*\pgflsystemstep}} will produce no overlap. A constant factor would be quite easy to parametrize as a key.
Jan
17
comment TikZ: How do I occasionally suppress the join option?
Not sure if this would work in all cases but maybe \makeatletter\tikzset{no join/.code={\let\tikz@after@path=\pgfutil@empty}} might give a useable no join key.
Jan
17
revised Bug in TikZ's math and calc with PDFLaTeX and LuaLaTeX : workaround?
Explained where \tikz@cc@scan@rot is used in the calc library
Jan
17
answered Bug in TikZ's math and calc with PDFLaTeX and LuaLaTeX : workaround?
Jan
17
comment Use foreach to simplify tikz diagram
@HenriMenke in this particular example, the quotes library isn't necessary. If math nodes is given as an argument to the \graph command then it is possible to specify the graph like this: C_0 -> {C_4 -> C_5, C_1 -> C_2} -> C_3
Jan
15
comment simulating text on a ribbon
@PeterGrill I get the intended output with not-updated-TeXLive2014 and also with the latest CVS version of PGF. So I am not sure what is going on there, or why an update to TeXLive would break things. Sorry.
Jan
15
awarded  Good Answer
Jan
15
awarded  Nice Answer
Jan
14
revised Cayley Graph of Free Group in TikZ
Updated according to comments by OP
Jan
14
comment Cayley Graph of Free Group in TikZ
@JPW part of what you want is easy. Just add \symbol{>}{ \pgftransformrotate{-90} } and \symbol{<}{ \pgftransformrotate{90} } to the lindenmayer system definition. Then you can use axiom=[F] [>F] [<F] [>>F], angle=72 and the angle first step will be 90 degrees and then 72 from then on.
Jan
14
revised Cayley Graph of Free Group in TikZ
added simpler version
Jan
14
answered Cayley Graph of Free Group in TikZ
Jan
13
answered Is print in TikZ's math, useless?
Jan
13
answered How to illustrate saccades with the help of tikz?