# some problems about cubes and tikz picture

I have three cubes that I have used the tikz picture to figure them. Now,

1. How can I make more prominent colors to this figure?
2. I made use of ‎\begin{tikzpicture}[t][tdplot_main_coords]‎‎ so as to draw the picture, the result was permissible, however the file has an error. Making use of \begin{tikzpicture}[tdplot_main_coords]‎‎' instead, the error is corrected, but the picture lookout is changed to an unsuitable one. How can I treat this problem?

My codes are:

1. with [t]

\documentclass[reqno]{amsart}
\usepackage{subfigure}
\usepackage{amsfonts}
\usepackage{newlfont}
\usepackage[centertags]{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{plain}
\usepackage{mathrsfs}
\usepackage{makecell}
\usepackage{enumerate}
\usepackage{tikz}
\usepackage{tikz-3dplot}
\usetikzlibrary{calc}

\begin{document}

\tdplotsetmaincoords{80}{125} %perspective angles

\begin{figure}
\centering
\begin{tikzpicture}[t][tdplot_main_coords]

\coordinate (o) at (0,0,0);

\draw[fill=blue!5] (0,0,2) -- (0,2,2) -- (2,2,2) -- (2,0,2) -- cycle;
\draw[fill=blue!5] (2,0,0) -- (2,0,2) -- (2,2,2) -- (2,2,0) -- cycle;
\draw[fill=blue!5] (0,2,2) -- (0,2,0) -- (2,2,0) -- (2,2,2) -- cycle;
\node (A) at (0.68,0.68,1) {\Huge H};
\draw[very thick, ->, dotted] (2,1,1) -- node[midway,above]{$\dfrac{dN}{dt}$}(3.6,1,1);

\draw[fill=yellow!5] (4,2,2) -- (4,2,0) -- (6,2,0) -- (6,2,2) -- cycle;
\draw[fill=yellow!5] (6,0,0) -- (6,0,2) -- (6,2,2) -- (6,2,0) -- cycle;
\draw[fill=yellow!5] (6,0,2) -- (4,0,2) -- (4,2,2) -- (6,2,2) -- cycle;
\draw[very thick, ->, dotted] (6,1,1) -- node[midway,above]{$\dfrac{dR}{dt}$}(7.6,1,1);
\node (A) at (4.68,0.68,1) {\Huge N};

\draw[fill=red!5] (8,2,2) -- (8,2,0) -- (10,2,0) -- (10,2,2) -- cycle;
\draw[fill=red!5] (10,0,0) -- (10,0,2) -- (10,2,2) -- (10,2,0) -- cycle;
\draw[fill=red!5] (10,0,2) -- (8,0,2) -- (8,2,2) -- (10,2,2) -- cycle;
\node (A) at (8.68,0.68,1) {\Huge R};
\end{tikzpicture}
\label{figfarid}
\end{figure}

\end{document}

2. Without [t]

\documentclass[reqno]{amsart}
\usepackage{subfigure}
\usepackage{amsfonts}
\usepackage{newlfont}
\usepackage[centertags]{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{plain}
\usepackage{mathrsfs}
\usepackage{makecell}
\usepackage{enumerate}
\usepackage{tikz}
\usepackage{tikz-3dplot}
\usetikzlibrary{calc}

\begin{document}

\tdplotsetmaincoords{80}{125} %perspective angles

\begin{figure}
\centering
\begin{tikzpicture}[tdplot_main_coords]

\coordinate (o) at (0,0,0);

\draw[fill=blue!5] (0,0,2) -- (0,2,2) -- (2,2,2) -- (2,0,2) -- cycle;
\draw[fill=blue!5] (2,0,0) -- (2,0,2) -- (2,2,2) -- (2,2,0) -- cycle;
\draw[fill=blue!5] (0,2,2) -- (0,2,0) -- (2,2,0) -- (2,2,2) -- cycle;
\node (A) at (0.68,0.68,1) {\Huge H};
\draw[very thick, ->, dotted] (2,1,1) -- node[midway,above]{$\dfrac{dN}{dt}$}(3.6,1,1);

\draw[fill=yellow!5] (4,2,2) -- (4,2,0) -- (6,2,0) -- (6,2,2) -- cycle;
\draw[fill=yellow!5] (6,0,0) -- (6,0,2) -- (6,2,2) -- (6,2,0) -- cycle;
\draw[fill=yellow!5] (6,0,2) -- (4,0,2) -- (4,2,2) -- (6,2,2) -- cycle;
\draw[very thick, ->, dotted] (6,1,1) -- node[midway,above]{$\dfrac{dR}{dt}$}(7.6,1,1);
\node (A) at (4.68,0.68,1) {\Huge N};

\draw[fill=red!5] (8,2,2) -- (8,2,0) -- (10,2,0) -- (10,2,2) -- cycle;
\draw[fill=red!5] (10,0,0) -- (10,0,2) -- (10,2,2) -- (10,2,0) -- cycle;
\draw[fill=red!5] (10,0,2) -- (8,0,2) -- (8,2,2) -- (10,2,2) -- cycle;
\node (A) at (8.68,0.68,1) {\Huge R};
\end{tikzpicture}
\label{figfarid}
\end{figure}

\end{document}

• What did you expect the t to do? Apr 5 '16 at 9:32
• Someone introduced this command to me. Apr 5 '16 at 9:36
• Yes, but what did you want it to do? It's something that typically is seen with e.g. tabular and minipage, but unless that person had defined a TikZ style called t, it isn't used with tikzpicture. Apr 5 '16 at 9:43

I'm not sure what you expected the t option to do,but to change the view of the graphic, play with the numbers in

\tdplotsetmaincoords{80}{125}


As for the colors, those are specified in the \draw commands, e.g. fill=blue!5. The syntax <color>!N means that the color is mixed with white (I think), N% of the specified color, the rest white. So in blue!5 you get 5% blue, 95% white.

Exactly what you mean by prominent, I don't know, but you could for example increase the percentage for blue, yellow and red. An example:

\documentclass[reqno]{amsart}
\usepackage{tikz}
\usepackage{tikz-3dplot}
\begin{document}
\tdplotsetmaincoords{80}{155} %perspective angles

\begin{figure}
\centering
\begin{tikzpicture}[tdplot_main_coords]

\coordinate (o) at (0,0,0);

\draw[fill=blue!25] (0,0,2) -- (0,2,2) -- (2,2,2) -- (2,0,2) -- cycle;
\draw[fill=blue!25] (2,0,0) -- (2,0,2) -- (2,2,2) -- (2,2,0) -- cycle;
\draw[fill=blue!25] (0,2,2) -- (0,2,0) -- (2,2,0) -- (2,2,2) -- cycle;
\node (A) at (0.68,0.68,1) {\Huge H};
\draw[very thick, ->, dotted] (2,1,1) -- node[midway,above]{$\dfrac{dN}{dt}$}(3.6,1,1);

\draw[fill=yellow!25] (4,2,2) -- (4,2,0) -- (6,2,0) -- (6,2,2) -- cycle;
\draw[fill=yellow!25] (6,0,0) -- (6,0,2) -- (6,2,2) -- (6,2,0) -- cycle;
\draw[fill=yellow!25] (6,0,2) -- (4,0,2) -- (4,2,2) -- (6,2,2) -- cycle;
\draw[very thick, ->, dotted] (6,1,1) -- node[midway,above]{$\dfrac{dR}{dt}$}(7.6,1,1);
\node (A) at (4.68,0.68,1) {\Huge N};

\draw[fill=red!25] (8,2,2) -- (8,2,0) -- (10,2,0) -- (10,2,2) -- cycle;
\draw[fill=red!25] (10,0,0) -- (10,0,2) -- (10,2,2) -- (10,2,0) -- cycle;
\draw[fill=red!25] (10,0,2) -- (8,0,2) -- (8,2,2) -- (10,2,2) -- cycle;
\node (A) at (8.68,0.68,1) {\Huge R};
\end{tikzpicture}
`