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Re: Grid

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76651] Re: Grid
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Fri, 25 May 2007 06:34:37 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <f33olt$l3v$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

and adding a Framed[] arround the Grid[] does not help you ?

Regards
   Jens

Fred Simons wrote:
> No doubt one of the big improvements in Mathematica 6 is the function 
> Grid. I used it already many times with excellent result.
> 
> Nevertheless, there are two 'features' that strongly surprise me.
> 
> How to use options in Grid is well documentated. With the option 
> Spacings it is very easy to obtain that no spacing will be used at the 
> edge of the grid, i.e. before the first and behind the last column, 
> above the first row and below the last row, so I cannot find any reason 
> for the following behaviour.
> 
> For a nice application  I needed a spacing at the edge of the grid and I 
> discovered that spacing at the edge is impossible if there is not a line 
> placed by the option Dividers or by the option Frame. Otherwise stated: 
> the effect of the option Spacings depends on the setting of the options 
> Dividers or Frame. A very unpleasant situation, not in line with the 
> high standards of Mathematica.
> 
> Here is an example, where the option Spacings is used before the first 
> column, between the first and second column and behind the last column, 
> and similarly for the rows.
> 
> mat = Array[ Style[RandomChoice[{"a", "aa", "aaa"}] , Background -> 
> GrayLevel[0.8], FontSize -> 20] &, {4,  4}];
> 
> Manipulate[
>  Grid[mat, Dividers -> div,
>   Spacings -> {{sp1, sp1, {0}, sp1}, {sp2, sp2, {0}, sp2}},  Background 
> -> Yellow],
>  {{sp1, 2, "Column spacing"}, 0, 10}, {{sp2, 2, "Row spacing"}, 0, 10},
>  {{div, All, "Dividers"}, {None, Center, All, {-1 -> True}}} ]
> 
> A much less important observation is that the option Frame does not have 
> any effect when the option Dividers is in the Grid command, even if the 
> right-hand side of the option Dividers is the default value. So Dividers 
> and Frame cannot be used at the same time. Here is the example to play with:
> 
> Manipulate[
>  Grid[mat, Spacings -> {3, 3}, Frame -> fr, Background -> Yellow,
>   If[divopt, Options[Grid, Dividers][[1]], Sequence @@ {}] ],
> {{fr, None, "Frame"}, {None, {2 -> True}, {{2 -> True}, {1 -> True}}, 
> {None, None, {1, 2} -> True}}},
> {{divopt, False, "Option Dividers "}, {True, False}} ]
> 
> Fred Simons
> Eindhoven University of Technology
> 
> 
> 


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