[racket] improving image quality

From: Neil Toronto (neil.toronto at gmail.com)
Date: Wed Oct 8 10:05:08 EDT 2014

That's what I do for superscripts. LaTeX would definitely be awesomer.

The change to allow picts would be pretty invasive. Everything that 
computes sizes and baselines would have to change. I'd like Typed Racket 
to prove that I haven't forgotten anything, so I'll do it after I 
convert Plot to TR.

Neil ⊥

On 10/08/2014 08:24 AM, Robby Findler wrote:
> I think it would make sense for plot to allow picts as valid #:label
> arguments and hopefully not too much of a pain to add. (If it is painful
> for some reason, I'm happy to help.) Then you'd have to make up your own
> pict.
>
> Oh! Or in this case you could use unicode:
>
>    y = x²
>
> Robby
>
>
> On Wed, Oct 8, 2014 at 7:18 AM, Stephen De Gabrielle
> <spdegabrielle at gmail.com <mailto:spdegabrielle at gmail.com>> wrote:
>
>     Thanks Robby, my plots are very pretty plots now.
>
>     Is it possible to have nicely formatted LaTeX style labels on plots
>     instead of "y = x^2"?
>
>     see this example
>
>     http://docs.racket-lang.org/plot/renderer2d.html#%28def._%28%28lib._plot%2Fmain..rkt%29._inverse%29%29
>
>
>     (plot(list(axes)
>     (functionsqr-22#:label"y = x^2")
>     (function(λ(x)x)#:color0#:style'dot#:label"y = x")
>     (inversesqr-22#:color3#:label"x = y^2")))
>
>
>     (Racket has just displaced LaTeX and Maxima for me)
>
>     Thanks & kind regards,
>
>     Stephen
>
>
>
>     On Wed, Oct 8, 2014 at 2:24 AM, Robby Findler
>     <robby at eecs.northwestern.edu <mailto:robby at eecs.northwestern.edu>>
>     wrote:
>
>         If you use plot-pict, it will do the right thing.
>
>         And probably plots should implement the pict-convertible? api.
>
>         Robby
>
>
>         On Tue, Oct 7, 2014 at 7:55 PM, Stephen De Gabrielle
>         <spdegabrielle at gmail.com <mailto:spdegabrielle at gmail.com>> wrote:
>          > Hi,
>          >
>          > I'm learning some scribble, along with adding some images
>         from plot.
>          >
>          > This works nicely, but i'm trying to work out how to improve
>         the image
>          > quality in the resulting PDF. (the html output is fine.)
>          >
>          > is there any way to make my images sharper and clearer in PDF?
>          >
>          > kind regards,
>          >
>          > Stephen
>          >
>          > ----
>          >
>          > #lang scribble/base
>          >
>          > @(require plot racket/math)
>          >
>          > @title{Math 135 Assignment 1}
>          > @section{First Test}
>          >
>          > @(define ((deriv f) x)
>          >   (/ (- (f x) (f (- x 0.001))) 0.001))
>          > @(define (thrice f) (lambda (x) (f (f (f x)))))
>          >
>          > @(define (x^2 x) (* x x))
>          >
>          >
>          > @(parameterize ([plot-width    150]
>          >                  [plot-height  150]
>          >                  [plot-x-label  "xaxis"]
>          >                  [plot-y-label  #f])
>          >     (list (plot (function  x^2 (- pi) pi))))
>          >
>          >
>          >
>          > ____________________
>          >   Racket Users list:
>          > http://lists.racket-lang.org/users
>          >
>
>
>
>
>
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