[racket] improving image quality

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
<file:///Applications/Racket%20v6.1.0.8/doc/plot/plotting.html#%28def._%28%28lib._plot%2Fmain..rkt%29._plot%29%29>
 (list
<file:///Applications/Racket%20v6.1.0.8/doc/reference/pairs.html#%28def._%28%28quote._~23~25kernel%29._list%29%29>
 (axes
<file:///Applications/Racket%20v6.1.0.8/doc/plot/renderer2d.html#%28def._%28%28lib._plot%2Fmain..rkt%29._axes%29%29>
)              (function
<file:///Applications/Racket%20v6.1.0.8/doc/plot/renderer2d.html#%28def._%28%28lib._plot%2Fmain..rkt%29._function%29%29>
 sqr
<file:///Applications/Racket%20v6.1.0.8/doc/reference/generic-numbers.html#%28def._%28%28lib._racket%2Fmath..rkt%29._sqr%29%29>
 -2 2 #:label "y = x^2")              (function
<file:///Applications/Racket%20v6.1.0.8/doc/plot/renderer2d.html#%28def._%28%28lib._plot%2Fmain..rkt%29._function%29%29>
 (λ
<file:///Applications/Racket%20v6.1.0.8/doc/reference/lambda.html#%28form._%28%28lib._racket%2Fprivate%2Fbase..rkt%29._~ce~bb%29%29>
 (x) x) #:color 0 #:style 'dot #:label "y = x")              (inverse
<file:///Applications/Racket%20v6.1.0.8/doc/plot/renderer2d.html#%28def._%28%28lib._plot%2Fmain..rkt%29._inverse%29%29>
 sqr
<file:///Applications/Racket%20v6.1.0.8/doc/reference/generic-numbers.html#%28def._%28%28lib._racket%2Fmath..rkt%29._sqr%29%29>
 -2 2 #:color 3 #: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>
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> 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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