Re: h = gca; delete(h); h==gca -> ans=1

[John W. Eaton]

On 22-Oct-2008, Ben Abbott wrote:

|       octave:8> h = gcf; delete(h); h==gcf
|       ans = 1

That seems correct to me.  In the "h == gcf" expression, the gcf
function creates a new "Figure 1".  Try

  h = gcf; delete (h); get (0, 'currentfigure')

instead to show that H is actually deleted, and that there is no
current figure until you create a new one.

| I also noticed in Matlab
| 
|       >> gco
|       ans =  []
| 
| but in Octave
| 
|       octave:9> gco
|       error: `gco' undefined near line 9 column 1
| 
| I have no c++ skill, but I'll go out on a limb and ask if gca() &  
| gcf() might be cast as special instances of gco()?

I don't know whether that makes sense.

jwe