Re: things for 3.0

[David Bateman]

Shai Ayal wrote:
> On 10/12/07, David Bateman <address@hidden> wrote:
>   
>> John W. Eaton wrote:
>>     
>>> I'd like to do the following for 3.0.
>>>
>>>   * Update various README files.
>>>
>>>   * Update NEWS file.  There is no way we are going to try to mention
>>>     all the changes since 2.0.17 or even 2.1.73, but we should mention
>>>     important user-visible changes that could cause backward
>>>     compatibility problems.  Are there additional items that we should
>>>     mention?
>>>
>>>   * Update the refcard.
>>>
>>>   * Update installation instructions.
>>>
>>>   * Remove obsolete files (for example, is FLEX.patch still needed?)
>>>
>>>   * Any other similar items?
>>>
>>> As none of these items involve code in Octave itself, I think they
>>> should be safe to do between 2.9.15 and 3.0 with little testing.
>>>
>>> Comments?
>>>
>>> jwe
>>>
>>>
>>>
>>>
>>>       
>> There is one handle graphics bug that should be addressed before 3.0.
>> That is the multiple patch problem.. My test case for this issue is
>> something like
>>
>> t1 = (1/16:1/8:1)'*2*pi;
>> t2 = ((1/16:1/8:1)' + 1/32)*2*pi;
>> x1 = sin(t1);
>> y1 = cos(t1);
>> x2 = sin(t2);
>> y2 = cos(t2);
>> h = patch([x1,x2],[y1,y2],cat (3,[0,0],[1,0],[0,1]));
>> pause(1);
>> set(h,'FaceColor','r');
>>
>> showing two patches drawn that are blue and green that can then both be
>> changed to red using the handle.. I don't think this needs fixing for
>> 2.9.15, but for 3.0 it definitely should be fixed.
>>     
>
> I attach a patch for __patch__.m which fixes this bug.
>
> 2007-10-12  Shai Ayal <address@hidden>
>
>         * plot/__patch__.m: will now return handles of all patch objects 
> created
>
>   

No this isn't the solution... This is the behavior of the fill and fill3
functions. The patch function returns a single handle to all of the
patches.. I have a partially working patch to this issue and will try to
sent it soon..

D.


-- 
David Bateman                                address@hidden
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