Re: tests in log-scale plots

[Ben Abbott]

On Sep 6, 2011, at 4:59 PM, Kai Habel wrote:

> Ben Abbott <address@hidden> schrieb:
> 
>> On Sep 6, 2011, at 3:12 PM, Kai Habel wrote:
>> 
>>> On 06.09.2011 19:51, Ben Abbott wrote:
>>>> On Sep 6, 2011, at 12:50 PM, Kai Habel wrote:
>>>> 
>>>>> Ben Abbott<address@hidden>  schrieb:
>>>>> 
>>>>>> On Sep 6, 2011, at 11:47 AM, Kai Habel wrote:
>>>>>> 
>>>>>>> There is still a problem for Ben's MacOS setup. It is not clear whether 
>>>>>>> its a general MacOS problem or if it is something specific for Ben's 
>>>>>>> installation. I think he is currently changing his setup, maybe it 
>>>>>>> works then.
>>>>>> I can confirm that the commands below cause a core-dump on both MacOS 
>>>>>> 10.6.8 using Fink dependencies, and on MacOS 10.7.1 using MacPorts 
>>>>>> dependencies.
>>>>>> 
>>>>>> For 10.7.1 and MacPorts, I see ...
>>>>>> 
>>>>>>>> graphics_toolkit fltk ;
>>>>>>>> figure (1, 'visible', 'off')
>>>>>>>> panic: Segmentation fault: 11 -- stopping myself...
>>>>>> attempting to save variables to `octave-core'...
>>>>>> save to `octave-core' complete
>>>>>> 
>>>>>> For 10.6.8 and Fink, I see ...
>>>>>> 
>>>>>> octave:1>  graphics_toolkit fltk ;
>>>>>> octave:2>  figure (1, 'visible', 'off')
>>>>>> octave:3>  panic: Bus error -- stopping myself...
>>>>>> attempting to save variables to `octave-core'...
>>>>>> save to `octave-core' complete
>>>>>> 
>>>>>> Ben
>>>>> Ben is that with the same OpenGl driver? Which one is it?
>>>>> Kai
>>>> Apple's OpenGL libs are different for MacOS 10.6 and 10.7.
>>>> 
>>>>    http://developer.apple.com/graphicsimaging/opengl/capabilities/
>>>> 
>>>> I'm not familiar with the details.
>>>> 
>>>> Ben
>>>> 
>>> Do you have a chance to test a Software renderer (Mesa) for OpenGL ?
>>> 
>>> Kai
>> 
>> 
>> You are asking if I've tried to use Mesa in place of OpenGL?
>> 
>> No I have not. But MacPorts does have a Mesa port available for x11. If you 
>> can tell me what I need to pass to configure I'll give it a try.
>> 
>> Ben
> 
> Yes. I am not familiar with MacOs but I think fltk should link to mesa. Maybe 
> your package manager can help here.  
> Kai

I just realized that my FLTK from MacPorts only works with aqua (no x11 
support). 

I can try the Fink package for Mesa, but the fltk-x11 on Fink is rather old 
(1.1.7) My memory is that 1.1.10 is needed (do I have that right?).

Ben