tikz-pgf
I want to draw an ellipse and its centre point in the one command, like so:
\draw (1,0) [fill] circle (1mm) node[below]{$1$} ellipse (5 and 2);
I want the centre point filled but not the ellipse. Perhaps I could draw the ellipse first and then activate the [fill] option but is there a command like [nofill] to turn off filling before tikz draws the ellipse?
Look at sections 19.5 and 19.6 in the pgf manual. You can plot curves given by simple parametric equations, such as
\draw[scale=0.5,domain=-3.141:3.141,smooth,variable=\t] plot ({\t*sin(\t r)},{\t*cos(\t r)});
So if you van find parametric equations of your hyperbola, you should be able to plot it.
like this?
you shouldn't explicit declare draw color:
\documentclass[tikz, margin=3mm]{standalone}
\usetikzlibrary{fadings}
\begin{document}
\begin{tikzpicture}
\filldraw[very thick, fill = blue, path fading = west] (0, 0) circle (1.0);
\end{tikzpicture}
\end{document}
Best Answer
According to the manual (p. 136) you can use
[fill=none]in this way.I haven't tried it myself, though.