[Octave-bug-tracker] [bug #58386] function request: drawaxis

[Leonardo]

URL:
  <https://savannah.gnu.org/bugs/?58386>

                 Summary: function request: drawaxis
                 Project: GNU Octave
            Submitted by: pocker
            Submitted on: Dom 17 Mai 2020 18:49:52 -03
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 5.2.0
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Hello,

sometimes when doing plots, I like to have the x-axis and the y-axis plotted
with arrows thus, the ideia is: after ploting things, call function "drawaxis"
with or without parameters, and the lines/arrows of axis are displayed.

One way to do this is to use the "annotation" but this requires the normalized
numbers of the current figure. And this is a bit cumbersome.

Probably there are a lot of other methods to this but I could not find a
simple one.

If octave already has something similar, well, at least I learned a couple of
things :)

So, I decided to create my own version of function drawaxis and I would like
to share it.

I attached the function as well as some figures.

To use it:


plot((-2:10),randn(13,1))
drawaxis(10,pi/6,0.5);


A few things I would like to implement but I don't know how:

1) if the range (xlim/ylim) is changed, how to redraw the drew axis?
2) if figure window has its size changed, how to redraw the drew axis?
3) parameteres like linewidth and color could be passed to function, but how?
Using varargin, maybe? Have no idea.

Kind regards,
Leonardo



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File Attachments:


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Date: Dom 17 Mai 2020 18:49:52 -03  Name: drawaxis.m  Size: 5KiB   By: pocker

<http://savannah.gnu.org/bugs/download.php?file_id=49105>
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Date: Dom 17 Mai 2020 18:49:52 -03  Name: angle_and_size.png  Size: 18KiB  
By: pocker

<http://savannah.gnu.org/bugs/download.php?file_id=49106>
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Date: Dom 17 Mai 2020 18:49:52 -03  Name: notch.png  Size: 21KiB   By: pocker

<http://savannah.gnu.org/bugs/download.php?file_id=49107>
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Date: Dom 17 Mai 2020 18:49:52 -03  Name: example2.png  Size: 15KiB   By:
pocker

<http://savannah.gnu.org/bugs/download.php?file_id=49108>

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