[pstricks] using the xylogscale of pst-plot vs gnuplot exponent issue
Julien Morand
julienmorand2 at gmail.com
Mon Mar 10 21:32:39 CET 2014
Hello everyone,
I'm currently trying to plot the curve of the theoretical RdSOn of a power
MOSFET like in the example:
http://commons.wikimedia.org/wiki/File:Bv_rdson.png
I try to use the psgraph environment of pst-plot but when I write the given
equation the plot is not correct. I have to modify the value of the
exponent from 2.5 to 320!!
I also try the same equation using gnuplot and the plot is correct (see
attached files). Is there anyone that could help me on with this issue?
here is my code:
\documentclass[pstricks]{standalone}
%
\usepackage[T1]{fontenc}
\usepackage{xunicode}
\usepackage[francais]{babel}
\usepackage{multicol}
%%%%%%%%%%%%%%%%%%%%%%%%%
%ps tricks package
\usepackage{pstricks}
\usepackage{pstricks-add}
\begin{document}
%PSPICTURE
\begin{pspicture}(-1.3,-0.5)(10.3,7.1)
%%%%%%%%%%%%%%%%%%%%%%%%%%
%putting the option for the psgraph environment
\psset{xAxisLabel=$V_{br}(V)$,yAxisLabel=$\displaystyle
R_{sp\acute{e}cifique}\left(\frac{\Omega}{cm^2} \right)$,urx=-9cm,ury=0.5cm}
%%%%%%%%%%%%%%%%%%%%%%%%%%
%starting the psgraph envrionement with automatic scale
\begin{psgraph}
[tickcolor=lightgray,subtickcolor=lightgray,subticksize=0.5,Ox=1,Dx=1,xsubticks=9,xylogBase=10,logLines=all,Oy=-4,Dy=1,ysubticks=9]
{->}(1,-4)(1,-4)(3.301,1.18){11cm}{6cm}
%%%%%%%%%%%%%%%%%%%%%%%%%%
%plotting the theoretical rdson without leads resistance
\psplot[linecolor=darkgray,linestyle=dashed]{1.69879}{3.301}{0.00000000593
320 x exp mul log}
\end{psgraph}
%
\end{pspicture}
%
\end{document}
thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tug.org/pipermail/pstricks/attachments/20140310/1f358202/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bv_rdson__gnuplot.pdf
Type: application/pdf
Size: 13226 bytes
Desc: not available
URL: <http://tug.org/pipermail/pstricks/attachments/20140310/1f358202/attachment.pdf>
More information about the PSTricks
mailing list