Re: Re: format Text in graphics
- To: mathgroup at smc.vnet.net
- Subject: [mg42311] Re: [mg42299] Re: format Text in graphics
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Sat, 28 Jun 2003 03:21:56 -0400 (EDT)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200306250950.FAA04042@smc.vnet.net> <bdefg7$dko$1@smc.vnet.net> <200306271031.GAA24612@smc.vnet.net>
- Reply-to: murray at math.umass.edu
- Sender: owner-wri-mathgroup at wolfram.com
How can that solution be modified so as to allow defining some functions
to effect the TraditionalForm[HoldForm[...]] construction? For example,
something like the following -- which is not robust:
mathForm[expr_] := TraditionalForm[HoldForm[expr]];
xyLabels[x_, y_] = {mathForm[x], mathForm[y]};
fnLabel[{p_, q_}] := Text[mathForm[y = f[x]], {p, q}];
Plot[x^2, {x, -1, 1}, AxesLabel -> xyLabels[
x, y], Epilog -> fnLabel[{0.65, 0.75}]];
The trouble is shown by preceding the above input by, say:
x = 100; f[x_] := Sin[x]; y = "hello";
Then the axes labels are 100 and "hello", and the Text displayed with
the plot is sin(x).
[Evidently Hold and its variants are one of the significant Mathematica
frontiers that I still have to conquer!]
Paul Abbott wrote:
> In article <bdefg7$dko$1 at smc.vnet.net>,
> Murray Eisenberg <murray at math.umass.edu> wrote:
>
>
>>Thanks to all who have replied so far -- and please keep the answers
>>coming! Perhaps we will at last see a truly simple, straigntforward,
>>robust, and correct way to accomplish what seems such a basic task for
>>annotating graphics!
>>
>>So far, the solution below -- with the proposer's subsequent (privately
>>sent) amendment to wrap y and f[x] with HoldForm -- seems to be the only
>>one that actually works in the sense I indicated.
>>
>>There still seems to be no general solution that would also properly
>>format, in conventional form, other math expressions as Text in graphics
>>output.
>
>
> Surely HoldForm does exactly what you want? Try
>
> Plot[Sin[x], {x, 0, 2Pi},
> Epilog -> {Text[TraditionalForm[HoldForm[y = f[x]]], {Pi, 3/4}]}];
>
> Cheers,
> Paul
>
>
>>Gianluca Gorni wrote:
>>
>>>Hello!
>>>
>>>I do it this way:
>>>
>>>Format[myEqual[x_, y_], TraditionalForm] :=
>>> DisplayForm[RowBox[{x, "=", y}]];
>>>
>>>Plot[Sin[x], {x, 0, 2Pi},
>>> Epilog -> {Text[TraditionalForm[myEqual[y, f[x]]], {Pi, 1/2}]}];
>>>
>>>Good luck,
>>>
>>> Gianluca Gorni
>>>
>>>
>>>
>>>>From: Murray Eisenberg <murray at math.umass.edu>
To: mathgroup at smc.vnet.net
>
> To: mathgroup at smc.vnet.net
>
>>>To: mathgroup at smc.vnet.net
>>>
>>>
>>>>Organization: Mathematics & Statistics, Univ. of Mass./Amherst
>>>>Reply-To: murray at math.umass.edu
>>>>Date: Wed, 25 Jun 2003 01:53:47 -0400 (EDT)
>>>>To: mathgroup at smc.vnet.net
>>>>Subject: [mg42311] [mg42299] format Text in graphics
>>>>
>>>>What value of Epilog in a Plot expression will properly format
>>>>
>>>>y = f(x)
>>>>
>>>>in conventional mathematical style? That is, the y, f, and x should be
>>>>italicized but the = and parentheses should not.
>>>>
>>>>Some things that do NOT work:
>>>>
>>>>Epilog -> Text[TraditionalForm[y = f(x)], {0.5, 0.5}]
>>>>
>>>>(* that just sets y to be f(x) and then displays f(x) *)
>>>>
>>>>textForm[txt_] := StyleForm[txt, FontFamily -> Times]
>>>>mathForm[txt_] := StyleForm[txt, FontFamily -> Times, FontSlant -> Italic]
>>>>
>>>>Epilog -> Text[mathForm["y "], textForm["="], mathForm[" f(x)"], {0.5 0.5}]
>>>>
>>>>(* SOMETHING like the preceding should work, but I don't see how to
>>>>combine the three StyleForm results *)
>>>>
>>>>--
>>>>Reply to "REPLY TO" address and NOT to the "FROM" address!!
>>>>Otherwise I will never see your reply!!!!!!!!!!!!!!!!!!!!!!
>>>>
>>>>Murray Eisenberg murray at math.umass.edu
>>>>Mathematics & Statistics Dept.
>>>>Lederle Graduate Research Tower phone 413 549-1020 (H)
>>>>University of Massachusetts 413 545-2859 (W)
>>>>710 North Pleasant Street fax 413 545-1801
>>>>Amherst, MA 01003-9305
>>>>
>>>
>>>
>>>
>
--
Reply to "REPLY TO" address and NOT to the "FROM" address!!
Otherwise I will never see your reply!!!!!!!!!!!!!!!!!!!!!!
Murray Eisenberg murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2859 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305
- References:
- Re: format Text in graphics
- From: Gianluca Gorni <gorni@dimi.uniud.it>
- Re: format Text in graphics
- From: Paul Abbott <paul@physics.uwa.edu.au>
- Re: format Text in graphics