List Archives >  Maple User Group List Archive >  Archive by date >  This Month By Date >  This Month By Topic

[MUG] Iterative Plotting in Maple

Search email archive for  

[MUG] Iterative Plotting in Maple
Author: Gaurav Suri    Posted: 25/10/2000 19:54:34 GDT
>> From: Gaurav Suri Hello, I am using MAPLE to write code for an iterative algorithm. At the end of each iteration, I want to plot a point (the result of the iteration) to a separate window - so that I can see how the iteration is progressing. I have figured out how to use the plotsetup command to send plots to separate window, instead of inline. The problem is that at the end of every iteration, when I send the plot command, it opens up a new plot window. Is there some way to send subsequent plots to the same window? I know I can use the display command, but am just wondering if an alternative approach would be more elegant. Any suggestions will be appreciated. Thanks -- Gaurav Suri, Graduate Research Associate Integral Attachment Program at Ohio State Phone: (614)292-2849(W), (614)431-2668 (H)

[MUG] Re: Iterative Plotting in Maple
Author: Maple Group    Posted: 31/10/2000 01:21:03 GMT
>> From: Maple Group On Wed, 25 Oct 2000, Gaurav Suri wrote: | I am using MAPLE to write code for an iterative algorithm. At the end | of each iteration, I want to plot a point (the result of the iteration) to a | separate window - so that I can see how the iteration is progressing. | I have figured out how to use the plotsetup command to send plots to | separate window, instead of inline. The problem is that at the end of every | iteration, when I send the plot command, it opens up a new plot window. | Is there some way to send subsequent plots to the same window? -=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=- Date: Thu, 26 Oct 2000 14:55:43 -0700 (PDT) From: Robert Israel To: Subject: Iterative Plotting in Maple No, once a plot is displayed new elements can't be added to it. You can add new elements to a smartplot by drag-and-drop, but not by Maple commands. | I know I can use the display command, but am just wondering if an alternative | approach would be more elegant. To plot a sequence of points, you build up a list or array of points and then plot it. Well, maybe there's a way to accomplish what you want, but it will require resources outside Maple. It's most likely to be feasible on a Unix system. What you'd want to do is set up a pipe from Maple to some other process that can do incremental plotting, reading in points from the pipe as they become available and plotting them. Robert Israel Department of Mathematics http://www.math.ubc.ca/~israel University of British Columbia Vancouver, BC, Canada V6T 1Z2 -=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=- Date: Mon, 30 Oct 2000 12:19:36 +0100 From: Barsuhn Subject: Iterative Plotting in Maple To: Dear Gaurav, it would be nice if this were possible, but so far it is not (to my knowledge). After having left a plot statement you cannot reenter this plot at a later occasion. You already mentioned "display" that allows to circumvent the problem to some extent. The problem is (probably) that the plot-software of Maple has become more and more "encapsulated" and primitive commands are (no longer) accessible. As a student I enjoyed (among other things) to plot potential curves of diatomic molecules with a frame of axis around. The bottom axis in Bohr radii, the top axis in Angstroem, the left axis in Hartree ans the right axis in electron Volts using a Calcomp plotter with self.modified software. I wouldn't know how to do this in Maple (if I had to). This is probably part of a more general problem of a software producer: Does he do research as his prime goal or does he wish to earn some money. Maple is nowadays moving into the same direction as Mathematica. But nevertheless I enjoy to use Maple and hence am carefully listening to the heartbeat of my licence manager in order not to be cut off unexpectedly. All the best Jurgen -- ------------------- Prof. Dr. Jurgen Barsuhn Fachhochschule Bielefeld University of Applied Sciences Fachbereich Elektrotechnik und Informationstechnik Wilhelm-Bertelsmann-Str. 10 D-33602 Bielefeld -----------

[MUG] Re: Iterative Plotting in Maple
Author: Maple Group    Posted: 03/11/2000 13:35:09 GMT
>> From: Maple Group On Wed, 25 Oct 2000, Gaurav Suri wrote: | I am using MAPLE to write code for an iterative algorithm. At the end | of each iteration, I want to plot a point (the result of the iteration) to a | separate window - so that I can see how the iteration is progressing. | I have figured out how to use the plotsetup command to send plots to | separate window, instead of inline. The problem is that at the end of every | iteration, when I send the plot command, it opens up a new plot window. | Is there some way to send subsequent plots to the same window? -=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=- From: "Nathan Sokalski" To: Subject: Iterative Plotting in Maple Date: Tue, 31 Oct 2000 10:48:44 EST It sounds like what you want to do is write a procedure that will add the points to your plot. You will probably want to do this using a global list variable, where the procedure adds a single point and then graphs the points in the list. If you need more help with procedures, see the help file. Nathan Sokalski _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. -=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=- Date: Tue, 31 Oct 2000 15:55:25 +0000 (GMT) From: "J.B.W.Webber" To: Subject: Iterative Plotting in Maple Yes it is indeed possible on a Unix/Linux box to plot and re-plot data as Robert Israel suggests - using Tim Budd's Apl compiler I run interactive code that can either generate data that gnuplot displays or generate postscript that can be displayed using ghostview or xv, and printed to a postscript printer - see : http://wwwnmr.ukc.ac.uk/~jbww/lab-tools/html/lab-tools.html this works well, one just has to have code to spawn the graphers initially, and then close them down before exiting. cheers, beau webber -=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=- Date: Wed, 1 Nov 2000 04:39:08 -0500 (EST) From: Carl DeVore To: Subject: Iterative Plotting in Maple If you have Matlab on the same computer this is easy. Here's an example. > with(Matlab); > evalM("figure"); > evalM("hold on"); The next proc returns at point [x, sin(x)] where x is chosen at random form the interval 0..2*Pi. This is my example to substitute for your "iterative algorithm". > F:= proc() > local x; > x:= evalf(rand()*2*Pi/10^12); > RETURN([x,sin(x)]) > end; And this loop lets you see how the sine curve gradually fills in as 200 such points are chosen. > to 200 do > P:= F(); > evalM(cat("plot(" > ,convert(P[1],string), "," > ,convert(P[2],string), ", '+')" > ) > ) > end; Carl Devore University of Delaware

Previous by date: [MUG] undefined limits, Cesar Augusto De Freitas Anselmo
Next by date: [MUG] Runge Kutta order 4, Chuck Baker
Previous thread: [MUG] mvcal2 3rd party library.,  Jason C Leach
Next thread: [MUG] Runge Kutta order 4, Chuck Baker