[Scilab-users] Lack of Scatter type plots in scilab

[nec]

Thanks again, Rafael.  Yes, scatter() function is running much faster,  in
about 45 seconds.  

 xfracs() function was taking about 60 times longer (i.e minutes instead of
seconds :) ) .  

scatter() results are as pleasing.

 

Regards

Necati 

 

From: Rafael Guerra [via Scilab / Xcos - Mailing Lists Archives]
[mailto:ml-node+s994242n4035022h61 at n3.nabble.com] 
Sent: Friday, November 18, 2016 08:29
To: nec <n.gulunay at gmail.com>
Subject: Re: Lack of Scatter type plots in scilab

 

Hi Nec., 

I think you may have missed some points discussed in the thread mentioned
and some of Samuel's advice. 
If you are using Scilab 6, then you should use scatter(). See timer()
comparisons below. 

Scilab 5 using xfarcs() - plot 34,000 circles color coded: 
    drawlater:    t = 92.2  (1.5 min) 
    "drawnow": t = 2992.8 (50 min) 

Scilab 6 using scatter() - plot 34,000 circles color coded: 
     t = 4.8 s 

Scilab 6 is the hands down winner. 

Regards, 
Rafael 

-----Original Message----- 
From: users [mailto:[hidden email]] On Behalf Of nec 
Sent: Friday, November 18, 2016 1:44 PM 
To: [hidden email] 
Subject: Re: [Scilab-users] Lack of Scatter type plots in scilab 

Hi Rafael, 

Thank you for letting me know about drawlater() and drawnow() functions 
.I tried them and waited about 2 minutes, nothing drawn , so I restarted the

run without them. 

I am sure functions are useful. But there is something not quite right 
either in my code ot with the function itself  as, without them, i can see 
the point(pixel) being colored like the head in a dot matrix plotter, i can 
watch and follow the locations(consecutive in space in my case) being 
painted on the screen. 

Since I will be running these plots only a few times I don't mind waiting 20

minutes or so everytime as plots are very nice. 

I am running Scilab 6... on windows 10 platform on a very powerful machine 
(AMD processor with speed 3.8 Ghz with 6 cores, with 10 GB memory, 2 GB on 
board video memory on Eyefinity Radeon HD 7570 video card ). 

It seems 20 minutes that I mentioned previously was not even an exeguration 
I won't be surprised if this run takes more than 45 minutes to an hour to 
finish as I can still see it is painting the plot; I started it before I 
started  writing this note to you.   

If you want to check my code I can send it and the data that it uses to you 
on a private email. if you send me your email address: mine is 
[hidden email] 

Regards, 
Nec. 



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