Re: Scale problem using plot()

[Ben Abbott]

On Oct 25, 2010, at 7:41 PM, Ben Abbott wrote:

> On Oct 25, 2010, at 7:16 PM, Ben Abbott wrote:
> 
>> On Oct 25, 2010, at 4:12 PM, Ben Abbott wrote:
>> 
>>> On Oct 25, 2010, at 4:03 PM, Michael D Godfrey wrote:
>>> 
>>>> On 10/25/2010 12:55 AM, Ben Abbott wrote:
>>>>> but what do you imply is wrong with the gnuplot version?
>>>>> 
>>>> The ymin should appear as 56, not  blank.  But, as you point out matlab 
>>>> does
>>>> it wrong, too.  In other cases gnuplot is like fltk in that it draws below
>>>> the xaxis line.  I hope that the fix to fltk will also fix gnuplot.  If 
>>>> not,
>>>> I will post a more complex case where both fltk and gnuplot draw
>>>> junk below the xaxis.
>>>> 
>>>> Michael
>>> 
>>> The scaling of the axes is determined by the "xlim" and "ylim" property 
>>> values. The values of the tickmarks aren't intended to serve that function. 
>>> Meaning they are not treated as line objects when the {x,y}limmode is 
>>> "auto".  So, I think gnuplot and matlab are doing the what is intended 
>>> (i.e. no bug) ... at least they seem to do the correct thing for this 
>>> example.
>>> 
>>> If you can give me an example where gnuplot doesn't clip the tick marks, 
>>> grid lines its children, I can take a look at fixing that.
>>> 
>>> I've cc'd Shai. Perhaps, it is a simple task to crop the tick marks and 
>>> grid lines for the fltk backend.
>>> 
>>> Ben
>> 
>> I took a look at the sources and put a patch together for gl-render.cc
>> 
>> I'm skeptical I got everything correct, but it does compile and resolves the 
>> problem with the grid, tickmarks, and ticklabels being drawn beyond the axis 
>> limits.
>> 
>> Can someone take a look and let me know I haven't done anything t0o messy 
>> ... or worse, broke something.
>> 
>> Ben
>> 
>> <tick_fix.patch>
> 
> Ok, I did miss something. The z-axis grid lines weren't cropped. I've 
> attached an update ... a changeset this time.
> 
> Ben
> 
> <changeset.patch>

Since there were no comments/suggestions, I assume this change is ok. Its been 
pushed.

        http://hg.savannah.gnu.org/hgweb/octave/rev/9cdf43d1fa16

Ben