[racket] plots/graphics without drscheme

On 05/11/2012 12:48 PM, prad wrote:
> Neil Toronto<neil.toronto at gmail.com>
> writes:
>
>> On 05/11/2012 11:44 AM, prad wrote:
>>> i'm not using drscheme.
>>>
>>> how do i display things like
>>> (object:2d-view% ...)
>>> which are produced when we use plot etc.
>>>
>>> if i run a racket program from command line?
>>>
>>> i thought there might be something like a show function, but it doesn't
>>> seem to be in
>>> #lang racket
>>
>> Start your interactions with `(plot-new-window? #t)' (without the
>> quotes). Every call to `plot' or `plot3d' will then display the plot
>> in a new frame.
>>
>> It sounds like you don't need programmatic control over the frames,
>> but if you do, use `plot-frame' and `plot3d-frame'.
>>
>> Neil ⊥
>>
> thx neil (and azumu).
> there doesn't seem to be a
>
> plot-new-window?
> or
> plot-frame
>
> after i do
> (require plot)
>
> aren't these functions part of plot?
>
>
> nor does it help if i change
> #lang racket
> to
> #lang slideshow
>
>
> for instance, this program doesn't work in drscheme:
>
> #lang slideshow
> (require plot)
>
> (plot-font-size (current-font-size))
> (plot-width (current-para-width))
> (plot-height 600)
> (plot-background-alpha 1/2)
>
> (slide
>   #:title "A 2D Parabola"
>   (plot-pict (function sqr -1 1 #:label "y = x^2")))
>
> because it doesn't know what plot-font-size or plot-width is.
> the program is from:
> http://docs.racket-lang.org/plot/plot2d.html?q=plot-frame#%28def._%28%28lib._plot/main..rkt%29._plot-frame%29%29
>
>
> so what am i missing here?
> (i'm on debian, but have installed racket v5.1)

Oh, that's the problem. I added all those plot goodies in v5.2, when I 
reimplemented it in Racket. I hope you're not stuck with v5.1. :/

Neil ⊥