Re: things for 3.0

[David Bateman]

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. If this is fixed, it
would be easy to add a fill and fill3 function (though fill3 would be
non functional with gnuplot it would set the properties of the object
correctly) as the patch function itself does all of the work and they
should probably be added. Perhaps also Kai's contourf changes, but that
and the fill/fill3 might be addressed in a post 3.0 release if you prefer.

D.

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David Bateman                                address@hidden
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