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Re: Table as Graphics Object?

  • To: mathgroup at
  • Subject: [mg35068] Re: [mg35027] Table as Graphics Object?
  • From: Andrzej Kozlowski <andrzej at>
  • Date: Thu, 20 Jun 2002 23:56:22 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Perhaps it may be useful to make a quick summary of the three approaches 
I proposed in answer to this question. The first method creates a bitmap 
representation of the table of numbers or symbols, and while it does 
scale, it looses quality, as bitmaps do. The second approach produces a 
graphic representation of a table that can be scaled to an arbitrary 
size and whose font can be changed by setting $DefaultFont to any chosen 
font or size. However this method is less flexible: for example I think 
one can't create matrix brackets using it. Finally, the last approach 
produces a fixed size, fixed font graphic representation of a table.


On Friday, June 21, 2002, at 11:03  AM, Andrzej Kozlowski wrote:

> I just realized that there is another approach to producing a nice 
> graphic object representing a table or even a matrix. You need to pay 
> attention to the FormatType option in the Text primitive.
> Here is another version of the graphic below, thsi time we will 
> represent out table as a matrix wiht the usual matrix brackets.
> In[1]:=
> ls=Table[Random[Integer,{1,6}],{5},{5}];
> In[2]:=
> myTable=Graphics[Text[ls,{0,0},FormatType->TraditionalForm]];
> In[3]:=
> myGraphic=ListPlot3D[ls,DisplayFunction->Identity];
> In[4]:=
> Show[GraphicsArray[{myGraphic,myTable}]]
> There are lots of variations onthsi theme you can try and you can of 
> course make, if you wish, use of the options available in Text.
> Andrzej
> On Friday, June 21, 2002, at 10:17  AM, Andrzej Kozlowski wrote:
>> The method that I described produces only a bitmap graphic so I do not 
>> think it will scale well and look good at different image sizes, 
>> besides having the other disadvantages. If you really want something 
>> that works better, and judging by your message you do, you should make 
>> use of the Text primitive. It need not be so hard. Here is one simple 
>> example:
>> First we make a table of random number, say between 1 and 6:
>> ls = Table[Random[Integer, {1, 6}], {5}, {5}];
>> Next, we make a graphic "version" of the table. Note that there is no 
>> need to bother about the choice of text coordinates for such a simple 
>> example:
>> myTable = GraphicsArray[Map[Graphics[Text[#, {0, 0}]] &, ls, {2}]];
>> Let's also make a 3D graphic using list plot and our matrix of values 
>> ls,:
>> myGraphic = ListPlot3D[ls, DisplayFunction -> Identity];
>> Now we can display them side by side:
>> Show[GraphicsArray[{myGraphic, myTable}]]
>> This looks fine, will scale properly and can be automated to deal with 
>> a large number of different cases. Probably a variant of this approach 
>> will also work in your case.
Andrzej Kozlowski
Toyama International University
>> On Friday, June 21, 2002, at 03:10  AM, AES wrote:
>>> Thank you, and this is wonderful!  -- as a way of demonstrating the 
>>> kinds of complex things one can get led into with computers and 
>>> graphics, anyway.  I have all those tools, and may try this if I ever 
>>> need to put a table or something similar into a presentation graphic.
>>> What I'm currently doing, however, is running a program that takes in 
>>> a bunch of parameters and calculates a plot, and I want to run a lot 
>>> of cases and produce a single output for each that will include both 
>>> the plot and the long list of parameters that produced the plot. What 
>>> I'm doing currently is
>>> 	--Print a page break
>>> 	--Print a table of paramters
>>> 	--Print the plot (size of plot varies)
>>> 	--Repeat
>>> The object was to make this a little simpler, and maybe get two cases 
>>> per page, without more complex programming.
>>> So, seriously, I do appreciate your writing, but I don't clearly want 
>>> to follow all your steps 50 or 60 times!
>>> I'd be curious:  If you Show your "TableGraphic" several times at 
>>> different ImageSizes, do the fonts and characters scale neatly and 
>>> look good at different sizes?
>>> Thanks again,  Tony Siegman
>>> At 12:35 AM +0900 6/21/02, Andrzej Kozlowski wrote:
>>>> There is a trick you may wish to try. I just did it and it seems to 
>>>> work. You will need, besides Mathematica, a graphic program. There 
>>>> might be a clever trick that will make it possible to accomplish the 
>>>> same thing without one, but I have not found it.
>>>> Anyway,  this is what I just did under Mac OS X.
>>>> First, I created a table with:
>>>> Table[Random[Integer], {5}, {5}] // TableForm
>>>> I then selected the output and using the Cell/ConvertTo menu 
>>>> converted it to PICT, a Macintosh graphic format. (I expect other 
>>>> formats will also work). I then copied the graphic and pasted it 
>>>> into GraphicConverter, a well known Mac graphic program (any other 
>>>> such program will do). I then copied the graphic from 
>>>> GraphicConverted and pasted it back into Mathematica.  I selected 
>>>> the entire cell  and chose ConvertTo InputForm. You get a rather 
>>>> long expression which describes a graphic object (a RasterArray). 
>>>> Evaluate thsi cell, then evaluate myTable= %, and then 
>>>> Show[GraphicsArray[{myTable,myPlot}]] will give you just what you 
>>>> wanted.
>>>> This does not seem to work without using an external graphic 
>>>> program. Merely converting the Table first to a graphic and then 
>>>> into InputForm produces merely Mathematica input cell, not the input 
>>>> cell for a graphic object. It seems you have to force Mathematica to 
>>>> forget that your graphic was created by converting a Mathematica 
>>>> output cell.
>>>> Of course this gives you a raster graphic, which is not of the 
>>>> highest quality and rather large. If you want something better you 
>>>> really need to use the Text primitive.
>>>> On Thursday, June 20, 2002, at 03:13  PM, aes wrote:
>>>>> I'd like to include a Table as one of the objects in a
>>>>> GraphicsArray, using a simple syntax like
>>>>>  myTable = Table[---] // TableForm
>>>>>  myPlot = Plot[---]
>>>>>  Show[ GraphicsArray[ {{myTable, myPlot}} ]
>>>>> I know I could built a "psuedo Table" into a Graphics object using
>>>>> the usual Text[---] commands, but at the cost of a lot of work to
>>>>> input and position the various lines.
>>>>> Any other approaches?
>>>>> Thanks,  AES

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