Re: gridding: differences of 4.2 and 4.4

[Ethan M. <merritt@u.washington.edu>]

On Friday 04 December 2009 08:19:43 Petr Mikulik wrote:
> An anonymous user "r/e-letter/inpost" reported different outputs of gnuplot 
> from OpenSUSE and 4.4. Well it seems that the 3rd parameter of the gridding 
> method changed between 4.2 and 4.4.
> 
> Try any 4.2.x and 4.4 and these examples:
> 
> set dgrid3d ,,1; show dgrid; splot '3.dat' with line
> set dgrid3d ,,8; show dgrid; splot '3.dat' with line

I get identical results with 4.2.5 and 4.4.0-rc1.

Perhaps you could post screenshots?
 
> There is yet another error in 4.4 -- the following command fails:
> m=5; n=8; set dgrid3d m,m,n

I confirm this one.
It looks like the "new" set_dgrid3d() routine is falsely assuming
it can detect numerical values by calling isanumber().

<aside>
 We should rename that routine!
 It doesn't at all do what its name suggests.
</aside>

I'll have a quick go at fixing this.


	Ethan