How to write some texts in this picture?

Question

I have a file

\documentclass[10pt]{article}
\usepackage{pstricks-add}
\usepackage{esvect}
\pagestyle{empty}
\begin{document}
\psset{xunit=1.0cm,yunit=1.0cm,algebraic=true,dotstyle=o,dotsize=3pt 0,linewidth=0.8pt,arrowsize=3pt 2,arrowinset=0.25}
\begin{pspicture*}(-1,-1)(10,4)
\psline{->}(1,1)(0,0)
\psline{->}(1,1)(3,1)
\psline{->}(1,1)(0,3)
\psline{->}(7,1)(5,0)
\psline{->}(7,1)(9,0)
\psline{->}(7,1)(7,3)
\rput[tl](0.61,0.59){$\vv{a}$}
\rput[tl](1.72,1.5){$\vv{b}$}
\rput[tl](0.68,2.38){$\vv{c}$}
\rput[tl](8.14,0.78){$\vv{a}$}
\rput[tl](5.47,0.82){$\vv{b}$}
\rput[tl](6.4,1.97){$\vv{c}$}
\end{pspicture*}
\end{document}

I want to write some texts like the picture. How to get them?

Answer 1

I assume you would place it the same way that you placed the labels, just need to choose where it is to go. I used:

\rput[tl](0.0,-1.0){Some Text}
\rput[tl](6.0,-1.0){Some More Text}

Code:

\documentclass[10pt]{article}
\usepackage{pstricks-add}
\usepackage{esvect}
\pagestyle{empty}
\begin{document}
\psset{xunit=1.0cm,yunit=1.0cm,algebraic=true,dotstyle=o,dotsize=3pt 0,linewidth=0.8pt,arrowsize=3pt 2,arrowinset=0.25}
\begin{pspicture*}(-1,-2)(10,4)
\psline{->}(1,1)(0,0)
\psline{->}(1,1)(3,1)
\psline{->}(1,1)(0,3)
\psline{->}(7,1)(5,0)
\psline{->}(7,1)(9,0)
\psline{->}(7,1)(7,3)
\rput[tl](0.0,-1.0){Some Text}
\rput[tl](6.0,-1.0){Some More Text}
\rput[tl](0.61,0.59){$\vv{a}$}
\rput[tl](1.72,1.5){$\vv{b}$}
\rput[tl](0.68,2.38){$\vv{c}$}
\rput[tl](8.14,0.78){$\vv{a}$}
\rput[tl](5.47,0.82){$\vv{b}$}
\rput[tl](6.4,1.97){$\vv{c}$}
\end{pspicture*}
\end{document}

Answer 2

\documentclass[pstricks,10pt]{standalone}
\usepackage{esvect}
\psset
{
    arrowsize=3pt 2,
    arrowinset=0.25,
    arrows=->,
}
\begin{document}
\begin{pspicture}[showgrid](-1,-1)(10,4)
\psline(1,1)(0,0)
\psline(1,1)(3,1)
\psline(1,1)(0,3)
\psline(7,1)(5,0)
\psline(7,1)(9,0)
\psline(7,1)(7,3)
\rput[tl](0.61,0.59){$\vv{a}$}
\rput[tl](1.72,1.5){$\vv{b}$}
\rput[tl](0.68,2.38){$\vv{c}$}
\rput[tl](8.14,0.78){$\vv{a}$}
\rput[tl](5.47,0.82){$\vv{b}$}
\rput[tl](6.4,1.97){$\vv{c}$}
\uput[-90](1,-0.25){Some Text}
\uput[-90](7,-0.25){Some More Text}
\end{pspicture}
\end{document}

Explanations:

• Use standalone document class to get a tight PDF output.
• Remove unnecessary packages.
• Remove unnecessary settings.
• Don't use starred pspicture if you have no objects beyond the specified canvas region.
• Repetitive {->} for multiple consecutive \psline can be removed and defined as a common settings before \psline.
• Use either \rput or \uput to put a label.

Edit:

It will be more convenient if you use \pcline followed by \n*put as follows,

\documentclass[pstricks,10pt]{standalone}
\usepackage{pst-node}
\usepackage{esvect}
\psset
{
    arrowsize=3pt 2,
    arrowinset=0.25,
    arrows=->,
}
\begin{document}
\begin{pspicture}[showgrid](-1,-1)(10,4)
\pcline(1,1)(0,0)\naput{$\vv{a}$}
\pcline(1,1)(3,1)\naput{$\vv{b}$}
\pcline(1,1)(0,3)\nbput{$\vv{c}$}
\pcline(7,1)(9,0)\naput{$\vv{a}$}
\pcline(7,1)(5,0)\nbput{$\vv{b}$}
\pcline(7,1)(7,3)\naput{$\vv{c}$}
\uput[-90](1,-0.25){Some Text}
\uput[-90](7,-0.25){Some More Text}
\end{pspicture}
\end{document}