[scilab-Users] Plotting data with single x axis and two y axes

[giri]

-----Original 
Message-----

From: Samuel Gougeon <Samuel.Gougeon at univ-lemans.fr>

To: users at lists.scilab.org

Date: Sat, 13 Feb 2010 04:32:32 +0100

Subject: Re: [scilab-Users] Plotting data with single x axis and two y 
axes




Hello Giri,

Here is a commented example showing a way to do what you expect.

There are certainly other ones, noticeably by using drawaxis()

instead of | in addition to newaxes();

Hope That Help

Regards

Samuel

--------

x=linspace(1,7,100);

y1=sin(x);

y2=cos(x)*67;



clf

plot2d(x,y1);

xtitle("Sample with 2 different 
Y-scales","X","sinus(x)")

legend("sin(x)",-5,%f); // -5 => above the left top corner, no 
frame

a=newaxes();    // Creates a new default system of axes on the 
same  

area of the window, and makes it the current one

a.filled="off"; // the background of the graphical area should be 
 

transparent, to leave the previous plot apparent

red=color("red");

plot2d(x,y2,axesflag=3,style=red);  // plots new data. axesflag=3 
 

means X at the bottom, and Y at the right

// Because the default

legend("67.cos(x)",[6,100],%f);     // above the right 
top corner, no frame

a.font_color=red;                 
  // sets color for ticks labels

a.axes_visible=["off","on","off"];  // 
cancels x axis (else red)

a.y_label.font_foreground=red;   // sets color for y-label

a.y_label.text="67.Cosinus(x)";  // set y label


Hello friends:

While the solution given by Mr Gougeon works excellently on Scilab 5 at 
work I have use an old solaris 8 computer running Scilab 4.0 (RC). This 
version of scilab does not recognize the "filled" attribute for 
newaxes().  The second plot simply over writes the first  
one.  Is there any way of making the second  one 
"transparent" after the plot is completed?

Thanking you.

Sincerely,

Giridhar


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