[Jprogramming] Challenge 13 Plot Alot

[bill lam]

As far as I know, plot itself does not keep old copies. You have to
save it by yourself.

the noun canvasnum is a means of workaround browser cache. Without
it you cannot see the new plots.

Сбт, 07 Июл 2012, Linda Alvord писал(а):
> After I ran the script below at the start of a session I just tried  nl
> after reading another thread:
> 
>    nl ''
> --T---------┐
> │P│canvasnum│
> L-+----------
>   
> The noun  canvasnum returns a 3.  I seemed to have only two plots.
> 
>   canvasnum
> 3
>    
> My real question is, as I kept going I got to  canvasnum 13 .  Is there some
> way to get one of the earlier canvases back?.  Is it saved somewhere so it
> can be displayed again?
> 
> Linda
> 
> -----Original Message-----
> From: programming-bounces at jsoftware.com
> [mailto:programming-bounces at jsoftware.com] On Behalf Of Linda Alvord
> Sent: Saturday, July 07, 2012 4:14 AM
> To: 'Programming forum'
> Subject: Re: [Jprogramming] Challenge 13 Plot Alot
> 
> Somehow I didn't  include the 8 points.  Here they are.
> 
> load 'plot'
> pd 'reset' 
> 'aspect 1'plot (_1 8);_1 8
> pd 'itemcolor red'
> pd 'type marker'
> pd 'markersize 1.2'
> pd 'itemcolor red'
> pd P =:(?8$8);?8$8
> pd 'show'
> 
> -----Original Message-----
> From: programming-bounces at jsoftware.com
> [mailto:programming-bounces at jsoftware.com] On Behalf Of Linda Alvord
> Sent: Friday, July 06, 2012 5:27 PM
> To: 'Programming forum'
> Subject: Re: [Jprogramming] Challenge 13 Plot Alot
> 
> Here's a simple plot of eight random points.  I don't know how to change the
> aspect without having another graph generated.
> 
> load 'plot'
> pd 'reset' 
> 'aspect 1'plot (_1 8);_1 8
> pd 'itemcolor red'
> pd 'type marker'
> pd 'markersize 1.2'
> pd 'itemcolor red'
> pd P
> pd 'show'
> 
> 
> Any thoughts?
> 
> Linda
> 
> -----Original Message-----
> From: programming-bounces at jsoftware.com
> [mailto:programming-bounces at jsoftware.com] On Behalf Of Linda Alvord
> Sent: Tuesday, July 03, 2012 10:57 AM
> To: 'Programming forum'
> Subject: Re: [Jprogramming] Challenge 13 Plot Alot
> 
> Hi, I checked my copy of my e-mail and this script was attached.  Here it is
> again.  Maybe you don't get attachments.  Also here is a copy of the script.
> 
> p=: 13 :'?(x,2)$y'
> N=:26
> P=:N p N
> lat=: 13 :'(y,+:y)$''. '''
> lat 5
> dots=: 13 :'<"1 (0{"1 y),.2*1{"1 y'
> dots 4 p 8
> spots=: 13 :'((i.x){(65+i.26){a.)(dots x p y)}lat y' 
> 5 spots 11
> 12 spots 4
> N spots N
> 
> load 'viewmat'
> NB. (number of points) voronoi (shape)
> NB. Generates an array of indices of the nearest point
> b=: 13 :'(i.y),."0 1 i.y'
> p=: 13 :'?(y,2)$ y'
> m=: 13 :'(i.<./)"1 +/"1 *:x-"1/~y'
> 
> NB. Palettes of colors used in the examples below viewmat {"2 m b 2
> 
> viewmat {"2 m b 3
> 
> viewmat {"2 m b 4
> 
> viewmat {"2 m b 5
> 
> viewmat {"2 m b 6
> 
> viewmat {"2 m b 7
> 
> viewmat {"2 m b 8
> 
> viewmat {"2 m b 9
> 
> NB. Regions
> viewmat (p 2) m b 2
> 
> viewmat (p 3) m b 3
> 
> viewmat (p 4) m b 4
> 
> viewmat (p 5) m b 5
> 
> viewmat (p 6) m b 6
> 
> viewmat (p 7) m b 7
> 
> viewmat (p 8) m b 8
> 
> viewmat Q=:(P=:p 9) m b 9
> P
> Q
> 
> 
> Linda
> 
> -----Original Message-----
> From: programming-bounces at jsoftware.com
> [mailto:programming-bounces at jsoftware.com] On Behalf Of Mike Day
> Sent: Tuesday, July 03, 2012 8:38 AM
> To: Programming forum
> Subject: Re: [Jprogramming] Challenge 13 Plot Alot
> 
> Attachment, Linda?
> 
> Mike
> 
> On 03/07/2012 2:41 AM, Linda Alvord wrote:
> > A new strategy for this challenge:  As you make any progress on this 
> > challenge, please send it along right away.  Working together  we may 
> > make any solution become better and better.
> >
> >   
> >
> > I've been trying to understand some code for Voronoi regions. The 
> > script is attached develops the code.  What I really want to do is 
> > make a similar progression of plots in conventional X and Y 
> > coordinates with polygon regions separated by line segments. Dots in 
> > each regions should show the random points that determine the regions.
> >
> >   
> >
> > When you try my code in  jhs  and  gtk  you will find the results very 
> > different in style.  I think the  8 plots will probably be more 
> > similar in the two different environments.
> >
> >   
> >
> > There are many examples  of this problem available on the web, but 
> > what I'm interested in is getting a sequence of steps that will help a 
> > reader to understand how those results have been achieved.
> >
> >   
> >
> > Feel free to ask questions along the way.  I will be working on the 
> > same problem along with you.
> >
> >
> >
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> 
> 
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-- 
regards,
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