axes limit calculations

[Shai Ayal]

On Thu, Aug 28, 2008 at 2:30 PM, Ben Abbott <bpabbott at mac.com> wrote:

>
> On Aug 28, 2008, at 7:22 AM, Shai Ayal wrote:
>
>
>> On Thu, Aug 28, 2008 at 1:47 PM, Ben Abbott <bpabbott at mac.com> wrote:
>>
>> However, switching to fltk appears to work ... well  almost. The plot
>> doesn't render properly.
>>
>> Can you elaborate on how it renders?
>>
>
> Perhaps a picture says it best?
>
> octave:30> close all
> octave:31> backend('fltk')
> octave:32> x = 0:10;
> octave:33> plot(x)
>
> To underlying windows each contribute to the result in a rather strange
> way. The resulting figure includes various sections of my email client, and
> some things I don't recognize. In addition the following line is displayed
> in the terminal.
>
> octave:34> ca=nan
>
> A picture is attached.


This looks like an OpenGL and/or fltk problem. The best way to debug this
would be to run the ftlk-opengl test programs gl_overlay and glpuzzle and
see if they work. You should have them in the test subdir of the fltk
sources. If you did not install fltk from source it's a problem :(

Another possible solution: I know than on OSX, after compiling a fltk app,
you should run

ftlk-config --post application_exe_file

on your application_exe_file. I am not sure what is the exe file here --
octave or the fltk_backend.oct file. Maybe you should try both. Also, you
can just look at fltk-config (it's a bash script)  and see what --post does
(in my linux PC it does nothing)

Shai
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