[Scilab-users] Batch to export a graph to PNG automatically

[Hu, Ning (Virginia Beach)]

Eleo:

The following is my code for exporting the plot to different files. It works for me. 

//plot two functions in one window
function f = myquadratic ( x )
    f = x^2
endfunction
function f = myquadratic2 ( x )
    f = 2 * x^2
endfunction
xdata = linspace ( 1 , 10 , 50 );
ydata = myquadratic ( xdata );
plot ( xdata , ydata , "v-r")
ydata2 = myquadratic2 ( xdata );
plot ( xdata , ydata2 , "o-m" )
xtitle ( "My title " , "X axis " , "Y axis " );
legend ( "x^2", "2x^2");
xs2png ( 0, "C:\Math Software\Scilab Scripts\Graph Plots\Plot2Functions.png" );
xs2jpg ( 0, "C:\Math Software\Scilab Scripts\Graph Plots\Plot2Functions.jpg" );
xs2pdf ( 0, "C:\Math Software\Scilab Scripts\Graph Plots\Plot2Functions");



Ning Hu, D.Sc.
EET Faculty


ECPI University | 5555 Greenwich Road | Virginia Beach, VA 23462
(Phone) 757-671-7171 x55499 | NHu at ecpi.edu | www.ecpi.edu



-----Original Message-----
From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of eleo
Sent: Monday, October 28, 2013 8:21 AM
To: users at lists.scilab.org
Subject: Re: [Scilab-users] Batch to export a graph to PNG automatically

Hello,

I have written the program attached below in order to plot and export a simple graph (y=cos(x)) in the "PNG" Format.


current_driver = driver()
driver("PNG")
xinit(TMPDIR+"/file.png")
x=-10:0.25:10
y=cos(x)
plot2d(x,y,2)
xend();
driver(current_driver)


I have obtained the following message:


xend();
       !--error 999
xend: An error occurred: Unable to create export file, permission denied.
at line       7 of exec file called by :    
   exec(%fileToExec);                 disp(msprintf(gettext("Execution
done.\n
while executing a callback


If I change the path where I want the file to be written (for instance I
want to write it in Document), I obtain the same message.
How can I modify this program in order to export the file in PNG Format ok ?

Thank you for your help.

Regards,

Eleo




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