# Talking Balloon in TikZ

I have the following code

 \documentclass[12pt]{article}
\usepackage{tikz}
\usetikzlibrary{calc,shapes.callouts,shapes.arrows}
\newcommand{\bubblethis}[2]{
\tikz[remember picture,baseline]{\node[anchor=base,inner sep=0,outer sep=0]%
(#1) {\underline{#1}};\node[overlay,cloud callout,callout relative pointer={(0.2cm,-0.7cm)},%
aspect=2.5,fill=yellow!90] at ($(#1.north)+(-0.5cm,1.6cm)$) {#2};}%
}%

\begin{document}
\bubblethis{B}{I know X}
\end{document}


This creates a talking bubble but I want to create bubble over bubbles. I tried using \bubblethis function twice but it makes second balloon twice. To see what I mean by typing \bubblethis{B}{\bubblethis{I know X}{I know a}}. If someone makes a good tweak the code that would be great. Thanks for any help

This picture is sort of what I want.

• It is not exactly clear how you want the result to look. Two bubbles side by side? One small bubble sitting inside the other larger bubble? Based on your proposed syntax, I am thinking the latter, but a clarification would help. – Steven B. Segletes Jun 5 '14 at 17:48
• Is this closer to what you want??: \setbox0=\hbox{\bubblethis{B}{I know X}}\bubblethis{A}{\box0{I know a}} or else \bubblethis{B}{\bubblethis{A}{I know B}I know X} – Steven B. Segletes Jun 5 '14 at 17:52
• @StevenB.Segletes: The first one is want I wanted except positioning, but I will figure out that. Thanks very much! – user64066 Jun 5 '14 at 18:04
• @user64066, why don't you upload an image of what you are trying to achieve so that the others would know what do you exactly mean bubble over bubble? Even a hand-drawn image would suffice. – Pouya Jun 5 '14 at 19:29
• You may want to take a look at this question: tex.stackexchange.com/questions/38805/… – schmendrich Jun 6 '14 at 14:07

I am putting my answer for someone who is struggling with same type of question in order to save his/her time.

 \documentclass[12pt]{article}
\usepackage{tikz}
\usetikzlibrary{calc,shapes.callouts,shapes.arrows}
\newcommand{\bubblethis}[2]{
\tikz[remember picture,baseline]{\node[anchor=base,inner sep=0,outer sep=0]%
(#1) {#1};\node[overlay,cloud callout,callout relative pointer={(-0.2cm,-0.2cm)},%
aspect=1.5,fill=yellow!90] at ($(#1.north)+(0.8cm,0.4cm)$) {#2};}%
}%

\newcommand{\bubble}[3]{
\tikz[remember picture,baseline]{\node[anchor=base,inner sep=0,outer sep=0] %
(#1)  {#1};\node[overlay,cloud callout,callout relative pointer= {(0.2cm,-0.4cm)},aspect=2.5,fill=red] at($(#1.north)+(-0.5cm,1.6cm)$) {#2};\node[overlay,cloud callout, callout relative pointer={((-0.4,-0.3))},aspect=3,fill=green] at($(#1.north)+(2cm,4cm)$) {#3};}

}

\begin{document}
\vspace*{4cm}
\centering
\bubble{B}{I know}{\bubblethis{A}{B}}
\end{document}