I have the following diagram:
\documentclass{article}
\usepackage{tikz}
\begin{document}
\usetikzlibrary{shapes,arrows,positioning,calc}
\tikzset {
block/.style = {draw, fill=blue!20, rounded corners,text centered, rectangle, minimum height=3em, minimum width = 9em, font=\bfseries},
}
\begin{tikzpicture}[node distance=3cm, >=latex']
\node [block] (convergencia) {convergence};
\node [below right=2em] (analitica) {analitical solution};
\node [below left=2em] (numerica) {numerical solution};
\draw [<->] (analitica) -- (numerica);
\node [block,above left of=convergencia] (consistencia) {consistency};
\draw [thick,->] (consistencia) -- (convergencia);
\node[above left of=consistencia] (discreta) {Discrete equation};
\node[above right of=consistencia] (diferencial) {differential equation};
\draw [<->] (discreta) -- (diferencial);
\node [block, above right of=convergencia] (estabilidade) {stability};
\draw [thick,->] (estabilidade) -- (convergencia);
\node[above left of=estabilidade] (exata) {exact numerical solution};
\node[above right of=estabilidade] (numerica) {found numerical solution};
\draw [<->] (exata) -- (numerica);
\end{tikzpicture}
\end{document}
But it has two issues that I can't solve:
First, I can't make positional references as above right of=object
and above left of=object
and have a good distance between the object below and the two objects created above. By good I mean, a small vertical distance and a horizontal distance that to not clutter everything.
Second, my two boxes Consistencia and Estabilidade are nicely positioned, but the objects above them get over each other, how can I enforce a bigger horizontal distance (but not vertical) between them to make the objects above do not overwrite each other?
positioning
library, but you are not using it. By using it, e.g.above left=1.5cm of estabilidade
instead ofabove left of=estabilidade
you should be able to place everything where you want.(elem) -- (elem)
andleft of
like statements is thepoistioning
library; 3. your hint is good, It has worked for the blocks, but the [attribs] now are too spread horizontaly since they are starting after the margins of the [blocks]. I wish something in between. Thanks.\documentclass
command, include any necessary packages and be as small as possible to demonstrate your problem.