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-boun...@jsoftware.com > [mailto:programming-boun...@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$8 > pd 'show' > > -----Original Message----- > From: programming-boun...@jsoftware.com > [mailto:programming-boun...@jsoftware.com] On Behalf Of Linda Alvord > Sent: Friday, July 06, 2012 5:27 PM > To: 'Programming forum' > Subject: Re: [Jprogramming] Challenge 13 Plot Alot > > Here's a simple plot of eight random points. I don't know how to change the > aspect without having another graph generated. > > load 'plot' > pd 'reset' > 'aspect 1'plot (_1 8);_1 8 > pd 'itemcolor red' > pd 'type marker' > pd 'markersize 1.2' > pd 'itemcolor red' > pd P > pd 'show' > > > Any thoughts? > > Linda > > -----Original Message----- > From: programming-boun...@jsoftware.com > [mailto:programming-boun...@jsoftware.com] On Behalf Of Linda Alvord > Sent: Tuesday, July 03, 2012 10:57 AM > To: 'Programming forum' > Subject: Re: [Jprogramming] Challenge 13 Plot Alot > > Hi, I checked my copy of my e-mail and this script was attached. Here it is > again. Maybe you don't get attachments. Also here is a copy of the script. > > p=: 13 :'?(x,2)$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-boun...@jsoftware.com > [mailto:programming-boun...@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. > > > > > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
