Passing value of python variable to tikz

[runningopenloop]

I'm new to tikz and not experienced with iPython.

I was hoping to generate an image to display the locations of some calculated circles based on other code. However it does not appear to be possible? I guess the issue is at line 301 in tikzmagic.py where code is added (tex.append(code)), the code would need to be parsed and replacing variable names with variable contents? \begin{tikzpicture}[scale=%(scale)s] ''' % locals())

    tex.append(code)

    tex.append('''

\end{tikzpicture} \end{document} ''')

[runningopenloop]

I'm sure there is a better way to do this, but this has got me going. Also, not knowing tikz, I'm not sure if sandwiching my variable names between $ is a good idea. E.g. $myvar$

    replacements = re.findall("\$.+?\$", code)
    replacements2 = []
    for x in replacements:
        if x[1:-1] not in replacements2:
            replacements2.append(x[1:-1])

    ipy = get_ipython()

    for x in replacements2:
        code = re.sub("\$" + x + "\$", str(ipy.ev(x)), code)

    tex.append(code)

[mkrphys]

I wonder if this could be accomplished more immediately using string interpolation as it became available in Python 3.6?

[make-github-pseudonymous-again]

Any progress on that? What is currently the easiest way to display some tikz string outputed by a python function? Like

mytikzstring = x.tikz()

%%tikz
mytikzstring

[mkrphys]

There is not much progress on the original problem, however, your problem is easy to solve. Python variables can be passed in parameters, but not in the body of a TikZ cell. That is, what you can do is define a string, e.g., by

tikz_str = """
\draw[fill=red] (0,0) rectangle (1,1);
"""

or by your function, and then have a one-line %tikz cell, i.e.,

%tikz $tikz_str

That should do what you want.

[make-github-pseudonymous-again]

Thanks I will try it out!