3

So this is what I would like to have

Diagram 1 enter image description here

Diagram 2 enter image description here

Diagram 3 enter image description here

with help of Nico i could draw it like that 

  \documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{positioning}

\begin{document}

% First diagram
\begin{tikzpicture}[every node/.style={align=center}, implies/.style={double,double equal sign distance,-implies}]

% LEFT PART
\node[draw] (weak_existenceleft) at (-8, 0) {weak\\existence};
\node[draw] (strong_existenceleft) at (-4, 0) {strong\\existence};

\draw[implies] (strong_existenceleft) -- (weak_existenceleft);

\node[draw] (uniqueness_lawleft) at (-8, -4) {uniqueness\\in law};
\node[draw] (pathwiseuniquenessleft) at (-4, -4) {pathwise\\uniqueness};

\draw[implies] (pathwiseuniquenessleft) -- (uniqueness_lawleft);

% RIGHT PART
\node(weak_existence) at (0,0) {weak\\existence};
\node(pathwise_uniqueness) at (4,-4) {pathwise\\uniqueness};
\node (strong_existence) [draw] at (4,0) {strong\\existence};
\node (uniqueness_law) [draw] at (0,-4) {uniqueness\\in law};

\draw (node cs:name=weak_existence, anchor=north west) -- (node cs:name=weak_existence, anchor=north east) % top
      -- (node cs:name=pathwise_uniqueness, anchor=north east) %goes diagonally
      -- (node cs:name=pathwise_uniqueness, anchor=south east) % goes down
      -- (node cs:name=pathwise_uniqueness, anchor=south west) % bottom
      -- (node cs:name=weak_existence, anchor=south west) % goes diagonally
      -- cycle;

\draw[implies] (1,-2.4) -- (node cs:name=uniqueness_law, anchor=north);
\draw[implies] (2.9,-1.5) -- (node cs:name=strong_existence, anchor=south);
\end{tikzpicture}

\end{document}

enter image description here

Diagram 2 :

\documentclass{standalone}

\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{positioning}

\begin{document}

% First diagram
\begin{tikzpicture}[every node/.style={align=center}, implies/.style={double,double equal sign distance,-implies}]

\node(weak_existence) at (4,0) {weak\\existence};
\node(pathwise_uniqueness) at (0,-4) {pathwise\\uniqueness};
\node (strong_existence) [draw] at (0,0) {strong\\existence};
\node (uniqueness_law) [draw] at (4,-4) {uniqueness\\in law};

\draw (node cs:name=weak_existence, anchor=north east) -- (node cs:name=weak_existence, anchor=north west) % top
      -- (node cs:name=pathwise_uniqueness, anchor=north west) %goes diagonally
      -- (node cs:name=pathwise_uniqueness, anchor=south west) % goes down
      -- (node cs:name=pathwise_uniqueness, anchor=south east) % bottom
      -- (node cs:name=weak_existence, anchor=south east) % goes diagonally
      -- cycle;

\draw[implies] (3.1,-2.2) -- (node cs:name=uniqueness_law, anchor=north);
\draw[implies] (1,-1.7) -- (node cs:name=strong_existence, anchor=south);
\end{tikzpicture}

\end{document}

enter image description here

Diagram 3 

\documentclass{standalone}

\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes.geometric}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{positioning}

\begin{document}

% First diagram

\begin{tikzpicture}[every node/.style={align=center}, implies/.style={double,double equal sign distance,-implies}, rect/.style={draw, inner sep=1em},hexa/.style={regular polygon, regular polygon sides=6, shape aspect=0.5, minimum height=1cm, draw}]

\node[rect] (weak_existence) at (0, 0) {weak\\existence\\\\\\pathwise\\uniqueness};
\node[rect] (strong_existence) at (8, 0) {strong\\existence\\\\\\uniqueness\\in law};

\node[hexa] (best) at (4,0) {The best\\possible\\situation};

\draw[implies] (strong_existence) -- (best);
\draw[implies] (weak_existence) -- (best);
\end{tikzpicture}

\end{document}

enter image description here

I'm still not entirely satisfied with this, could someone provide way to do it awesome Your help will be greatly appreciated.

notice that for the first diagram the right draw doesn't looks great could someone fix my draw that's because of the size of the words i can't control them enter image description here

Improve this question
3

You can start with this:

\documentclass{standalone}

\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{positioning}

\begin{document}

% First diagram
\begin{tikzpicture}[every node/.style={align=center}]

\node(weak_existence) at (0,0) {weak\\existence};
\node(pathwise_uniqueness) at (4,-4) {pathwise\\uniqueness};
\node (strong_existence) [draw] at (4,0) {strong\\existence};
\node (uniqueness_law) [draw] at (0,-4) {uniqueness\\in law};

\draw (node cs:name=weak_existence, anchor=north west) -- (node cs:name=weak_existence, anchor=north east) % top
      -- (node cs:name=pathwise_uniqueness, anchor=north east) %goes diagonally
      -- (node cs:name=pathwise_uniqueness, anchor=south east) % goes down
      -- (node cs:name=pathwise_uniqueness, anchor=south west) % bottom
      -- (node cs:name=weak_existence, anchor=south west) % goes diagonally
      -- cycle;

\draw[-latex] (1,-2.5) -- (node cs:name=uniqueness_law, anchor=north);
\draw[-latex] (3.2,-1.5) -- (node cs:name=strong_existence, anchor=south);
\end{tikzpicture}

\end{document}

enter image description here

Explanation:

  • Draw nodes. The align=center option is needed for the multiple lines.
  • Draw polygon: start at the top left of weak existence, go to the top right, an so on.
  • Draw arrows

The other part of the first diagram is easy:

\begin{tikzpicture}[every node/.style={align=center}, rect/.style={draw, inner sep=1em}]
\node[rect] (weak_existence) at (0, 0) {weak\\existence};
\node[rect] (strong_existence) at (4, 0) {strong\\existence};

\draw[latex-] (weak_existence) -- (strong_existence);
\end{tikzpicture}

And the last diagram:

\documentclass{standalone}

\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes.geometric}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{positioning}

\begin{document}

% First diagram
\begin{tikzpicture}[every node/.style={align=center}, rect/.style={draw, inner sep=1em},hexa/.style={regular polygon, regular polygon sides=6, shape aspect=0.5, minimum height=1cm, draw}]

\node[rect] (weak_existence) at (0, 0) {weak\\existence\\\\\\pathwise\\uniqueness};
\node[rect] (strong_existence) at (8, 0) {strong\\existence\\\\\\uniqueness\\in law};

\node[hexa] (best) at (4,0) {The best\\possible\\situation};

\draw[latex-] (best) -- (strong_existence);
\draw[latex-] (best) -- (weak_existence);
\end{tikzpicture}

\end{document}

enter image description here

Now it's up to you to glue all together =)

EDIT: You're being lazy...

I took the first code, copy and paste the second one and move it to the left. I had to change the node id because I've already used it in the right diagram.

I've also changed the arrow style

\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{shapes.misc}
\usetikzlibrary{positioning}

\begin{document}

% First diagram
\begin{tikzpicture}[every node/.style={align=center}, implies/.style={double,double equal sign distance,-implies}]

% LEFT PART
\node[draw] (weak_existenceleft) at (-8, 0) {weak\\existence};
\node[draw] (strong_existenceleft) at (-4, 0) {strong\\existence};

\draw[implies] (strong_existenceleft) -- (weak_existenceleft);

\node[draw] (uniqueness_lawleft) at (-8, -4) {uniqueness\\in law};
\node[draw] (pathwiseuniquenessleft) at (-4, -4) {pathwise\\uniqueness};

\draw[implies] (pathwiseuniquenessleft) -- (uniqueness_lawleft);

% RIGHT PART
\node(weak_existence) at (0,0) {weak\\existence};
\node(pathwise_uniqueness) at (4,-4) {pathwise\\uniqueness};
\node (strong_existence) [draw] at (4,0) {strong\\existence};
\node (uniqueness_law) [draw] at (0,-4) {uniqueness\\in law};

\draw (node cs:name=weak_existence, anchor=north west) -- (node cs:name=weak_existence, anchor=north east) % top
      -- (node cs:name=pathwise_uniqueness, anchor=north east) %goes diagonally
      -- (node cs:name=pathwise_uniqueness, anchor=south east) % goes down
      -- (node cs:name=pathwise_uniqueness, anchor=south west) % bottom
      -- (node cs:name=weak_existence, anchor=south west) % goes diagonally
      -- cycle;

\draw[implies] (1,-2.5) -- (node cs:name=uniqueness_law, anchor=north);
\draw[implies] (3.2,-1.5) -- (node cs:name=strong_existence, anchor=south);
\end{tikzpicture}

\end{document}

enter image description here

Improve this answer
7
  • @ Nico Thanks for your trying but as i said i'm quite noob i still can't make the first (with all the shapes ) and the second diagram – Educ Feb 14 '14 at 17:18
  • @Educ The second diagram it's almost exactly the same as the first one. Look a little bit, you just have to move some things around. Did you tried the code and tried to understand it? – Nico Feb 14 '14 at 17:20
  • @@Nico glue the things is the most difficult step i think even you can't do it, Thank you anyway – Educ Feb 14 '14 at 18:41
  • @Educ You are being lazy, it was pretty straightforward. Instead of the cheap "I think even you can't do it" you could have asked it gently or even tried to do it yourself and explain what problems have you encountered. I'm still a newbie, it's a lot of trial and error. Look at the edit. – Nico Feb 14 '14 at 19:20
  • @@Nico thanks i'm trying to make different arrows like original source – Educ Feb 14 '14 at 20:05

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