[Maxima-discuss] Fwd: font size in eps, pdf, png terminals with draw

[Robert D. <rob...@gm...>]

Hi Sheldon, I've taken the liberty of forwarding your message to the
mailing list since I won't be able to devote enough time to it until
tomorrow. In the meantime maybe others have some suggestions.

About just getting readline for a version of maxima which doesn't
already have it, you can install rlwrap separately and then apply it
to any program to get readline capabilities, one just says

rlwrap maxima

at the command line. I think rlwrap might be installable via yum on centos.

About wxmaxima, I'm not sure I understand what you mean about
packages. Do you mean notebooks? If that's not it, maybe you can
explain more.

best,
Robert

---------- Forwarded message ---------
From: Sheldon Newhouse <sen...@gm...>
Date: Thu, Aug 5, 2021 at 7:46 PM
Subject: Re: [Maxima-discuss] font size in eps, pdf, png terminals with draw
To: Robert Dodier <rob...@gm...>


I am using centos 7 with vmware player on a virtual machine in windows
10.  That is only because I have access to the same OS on a
super-computer (which I don't really use much any more).  The maxima
version:
 Linux version 3.10.0-1160.11.1.el7.x86_64
(moc...@kb...) (gcc version 4.8.5 20150623 (Red
Hat 4.8.5-44) (GCC) ) #1 SMP Fri Dec 18 16:34:56 UTC 2020

I am tempted to go back to ubuntu.
Several issues:
 1)  I don't see how to install wxmaxima on in this system.  I want to
experiment with the 'package' type of object and wxmaxima to send code
to some of my mathematical colleagues who use windows software. It
seems like the wxmaxima packaging is like
      Mathematica.  Is it worth bothering with?
 2) I used to compile my own version of maxima--giving both xmaxima
and readline( e.g. rmaxima) using carnegie-mellon lisp.  I have
forgotten how to do that, and, don't know how to install the
kernel-headers, etc, for centos 7.  I like the history use of xmaxima
and readline.
3) I found that I could get around the font size issue in my original
post about png, pdf, etc., by using 'png and gimp to rescale the
figure.  But, I would prefer to stay within  maxima to deal with the
fonts.  Gunther sent a suggestion that I will play with.
Any suggestions are welcome.

BTW, a long time ago, I asked about implementing some form of 'grep'
within maxima and you sent me a tool using lambda functions.
I use it all the time now.  Thanks.
    It helps me document functions and names of other tools.
   For instance, if I have a function called 'plot_sin()' which does a
plot involving the sin function, then I
   can define something like
     plot_sin_usg: print(" plot_sin() does these things. Here are
examples, etc. ");
    Then,  grepv("plot") gives that output of all values involving 'plot'.
   Is there a better way to document items?    stringout is not too
useful for me, since most of my sessions have a lot of errors and I
would have to clean the stringout file and this takes much time.
Thanks,
 -Sheldon


On Thu, Aug 5, 2021 at 2:28 PM Robert Dodier <rob...@gm...> wrote:
>
> Sheldon, what OS are you working on? Also, what version of Maxima is installed.
>
> The reason I ask is that the possible fonts differ between platforms,
> and at least for Gnuplot, "arial" is not recognized on macOS. I forget
> exactly how I got a list of available fonts on macOS. Also, plot2d was
> updated substantially in the most recent version and it might or might
> not affect the configuration options.
>
> best,
>
> Robert