Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[James Platt]

I was there and, as I remember it, there was a presentation on something else 
where this was mentioned.  IIRC, the topic was Language Oriented Programming 
and there was a discussion about how much complexity is okay when you are 
programmatically generating DSL code.  The presenter mentioned PostScript as an 
example of a DSL where very complex code is often machine generated.  Then 
there was more discussion about postscript and related things you can do with 
Racket.  Maybe that's what you were thinking about.

James


On May 11, 2021, at 11:03 AM, Sage Gerard wrote:

> I hope that has what Robert is looking for, but I don't recognize that 
> speech. In fact, I have a false memory, because I'm not finding the speech 
> I'm looking for on https://con.racket-lang.org/2018/#speakers
> 
> On 5/11/21 10:19 AM, Bruce O'Neel wrote:
>> This might be it.
>> 
>> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story of a 
>> Racket - YouTube
>> 
>> 
>> 
>> 
>> 
>> 11 May 2021 15:30 Sage Gerard  wrote:
>> I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
>> presenter that showed a PostScript-like DSL for designers and artists.  If 
>> pict not cover your needs, maybe dig into the presentations?
>> Failing that, can you show what you'd hope the syntax would look like? That 
>> would probably help point you in the right direction,
>> On 5/11/21 9:26 AM, Robert Haisfield wrote:
>>> I have to do a bunch of .jpg and .png image resizings and was looking for a 
>>> programmatic way to do it. Is their a Racket DSL for this? --
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>> -- ~slg --
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>> 
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> 
> 
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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[David Storrs]

On Wed, May 12, 2021 at 9:21 PM Ben Greenman 
wrote:

> On 5/12/21, Robert Haisfield  wrote:
> > Daniel, that's awesome. How would I filter down this list according to
> the
> > regex?
> >
> > (define list-of-files (map path->string (directory-list starting-path)))
>
> You can wrap it in a filter:
>
>   (define list-of-files (filter (lambda (str) (regexp-match? "\\.png$"
> str)) (map path->string (directory-list starting-path
>

Alternatively, if you would like to keep them as paths instead of strings
then you can do this:

(filter (compose1 (curry regexp-match? "\\.png$") path->string)
(directory-list "."))


Also, if you're going to be doing a lot of work with regexen, take a look
at the at-exp reader so that you don't have to do so much backwhacking
(obviously it's not important in this case where there's only one character
to escape, but it gets helpful as you do more):

#lang at-exp racket
(filter (compose1 (curry regexp-match? @~a{\.png}) path->string)
(directory-list "."))

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[kamist...@gmail.com]

p.s: scale-to-fit might be interesting for you and if you don't care about 
extra options (for background/alpha etc.) you can construct the pict with 
(bitmap path) directly instead of (bitmap (make-object bitmap% ...))
p.p.s: I think there was also a way to convert/use images within picts or 
the other way around but I currently can't find it...  ...I did find it: 
pict/convert
a little bit more example code options / some might be useful for you or 
other people (I partly write this as a note to myself)

#lang racket

(require (only-in 2htdp/image circle)
 (except-in pict circle)
 pict/convert)

(module+ main
  (define c (circle 708 "solid" "blue"))
  (displayln "pict-convertible:")
  (pict-convertible? c)
  (define p (pict-convert c))
  (define p2 (frame (scale-to-fit p 1440 (pict-height p) #:mode 'inset)))
  (send (pict->bitmap p2) save-file "example.png" 'png)
  (send (pict->bitmap p) save-file "test.png" 'png)
  
  (make-directory* "./resized")
  (define resize (resizer "." "./resized" 1440))
  (resize 708 1100 "test.png"))

(define ((resizer source target max-width) width height filename)
  (define p (bitmap (build-path source filename)))
  ;; (pict-width p) (pict-height p) would give the dimmensions of the 
incoming image
  ;; maybe that could be used instead of the hardcoded arguments, if that 
is possible for the usecase
  
  ;; this is a pict based variant with scaling (maybe you don't need 
scaling)
  ;; maybe you need something a little bit different
  ;; maybe scale-to-fit with certain parameters may be enough, or you can 
keep using your 2htdp/image
  ;; version and you could convert it to a pict with pict-convert if you 
want to use pict or bitmap% functionality
  (define p2
(cc-superimpose (filled-rectangle max-width height #:color "white" 
#:draw-border? #f)
(scale-to-fit p (- max-width width) height #:mode 
'inset)))
  (send (pict->bitmap p2)
save-file (build-path target filename) 'png))

;; -
;; everything below this is completely optional and I only do it because I 
wanted to try it
;; -
;; because this contract is defined on the module boundary it won't work 
within this module
;; [define/contract could be used to define it on the function boundary]
;; we could use a ->i contract to specify that width has to be <= max-width
(require racket/contract)
(define pathish/c (or/c path-string? path-for-some-system? 'up 'same))
(provide
 (contract-out
  [resizer (->i ([source pathish/c]
 [target pathish/c]
 [max-width exact-nonnegative-integer?])
[result (max-width) (->i ([width (and/c 
exact-nonnegative-integer? (<=/c max-width))]
  [height 
exact-nonnegative-integer?]
  [filename string?])
 [result () boolean?])])]))

(module* contract-test racket
  (require (submod "..")) ;; require enclosing module

  ;; testing the contract from a submodule similar to requiring from a 
different file
  (define resize (resizer "." "./resized" 1440))
  (resize 708 1100 "test.png") ;; works
  (resize 1708 1100 "test.png")) ;; contract error

;; to execute contract-test submodule use this in drracket-repl:
;; (require (submod "." contract-test))


kamist...@gmail.com schrieb am Donnerstag, 13. Mai 2021 um 01:04:41 UTC+2:

> Personally I use pict and racket/draw instead of htdp/image, because 
> save-image is png only.
> Pict to transform or load the image, racket/draw's bitmap% to save and/or 
> load the image
> (sidenote: in general I find pict more pleasant to work with, but that may 
> be subjective):
>
> (require pict
>  racket/draw)
>
> ;; this is a rough sketch of the image functions I use
>
> ;; make-object 2nd variant: 
> https://docs.racket-lang.org/draw/bitmap_.html?q=bitmap%25#%28constructor._%28%28lib._racket%2Fdraw..rkt%29._bitmap~25%29%29
> (define b (make-object bitmap% filename-or-port image-type-see-docs #f 
> #t)) ;; background color #f, complain on failure #t
> (define p (bitmap b)) ;; use bitmap% as pict
> ;; use pict functions to transform pict
> (define p2 (scale-to-fit p ...))
> ;; other pict transforms
> (define p3 (inset p2 30 0))
> ;; saving the transformed file
> (send (pict->bitmap p3) save-file out 'png) ;; other file types possible
>
> roberthh...@gmail.com schrieb am Mittwoch, 12. Mai 2021 um 15:06:02 UTC+2:
>
>> Dan, that's awesome. Thank you.
>>
>> Martin, I would love some way to extract the image metadata from each of 
>> the files outputted by Dan's function. All my function does is take the 
>> current width and height and apply some math to return some new values, so 
>> right now I'm just manually going into finder, looking at the images width 
>> and height, and plugging those values into my function. 
>>
>> On Tuesday, May 11, 

Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Ben Greenman]

On 5/12/21, Robert Haisfield  wrote:
> Daniel, that's awesome. How would I filter down this list according to the
> regex?
>
> (define list-of-files (map path->string (directory-list starting-path)))

You can wrap it in a filter:

  (define list-of-files (filter (lambda (str) (regexp-match? "\\.png$"
str)) (map path->string (directory-list starting-path


You might also like the glob package:

  (require file/glob)
  (define list-of-files (map path->string (glob (build-path
starting-path "*.png"

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Robert Haisfield]

Daniel, that's awesome. How would I filter down this list according to the 
regex?

(define list-of-files (map path->string (directory-list starting-path)))

On Tuesday, May 11, 2021 at 6:57:03 PM UTC-6 daniel@gmail.com wrote:

> Hi Robert
>
>
> > Even better if I could point the function at a directory, it finds all 
> of the images in it, and creates the data structure for me. Any ideas?
>
> You can get the files in a directory using *directory-list *and filter 
> for the image files using a regex.
>
> (for ([f (directory-list "/some/path")] #:when (regexp-match? "\\.png$" f))
>  (displayln f))
>
> Dan
>

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[kamist...@gmail.com]

Personally I use pict and racket/draw instead of htdp/image, because 
save-image is png only.
Pict to transform or load the image, racket/draw's bitmap% to save and/or 
load the image
(sidenote: in general I find pict more pleasant to work with, but that may 
be subjective):

(require pict
 racket/draw)

;; this is a rough sketch of the image functions I use

;; make-object 2nd variant: 
https://docs.racket-lang.org/draw/bitmap_.html?q=bitmap%25#%28constructor._%28%28lib._racket%2Fdraw..rkt%29._bitmap~25%29%29
(define b (make-object bitmap% filename-or-port image-type-see-docs #f #t)) 
;; background color #f, complain on failure #t
(define p (bitmap b)) ;; use bitmap% as pict
;; use pict functions to transform pict
(define p2 (scale-to-fit p ...))
;; other pict transforms
(define p3 (inset p2 30 0))
;; saving the transformed file
(send (pict->bitmap p3) save-file out 'png) ;; other file types possible

roberthh...@gmail.com schrieb am Mittwoch, 12. Mai 2021 um 15:06:02 UTC+2:

> Dan, that's awesome. Thank you.
>
> Martin, I would love some way to extract the image metadata from each of 
> the files outputted by Dan's function. All my function does is take the 
> current width and height and apply some math to return some new values, so 
> right now I'm just manually going into finder, looking at the images width 
> and height, and plugging those values into my function. 
>
> On Tuesday, May 11, 2021 at 7:31:15 PM UTC-6 martin...@gmail.com wrote:
>
>> So to clarify, you want something like the following (pseudocode)?
>>
>> (define (process-image transform image-file-data)
>>(let* ([path (get-full-path image-file-data)]
>>   [image (bitmap/file path)]
>>   [new-image (transform image)])
>> (save-image new-image path))
>>
>> (define (process-file path)
>>   (let ([image-file-data (extract-image-metadata path)])
>>  (process-image resize image-file-data)))
>>
>> (map process-file (find-all-images directory))
>>
>> One question - where do the new width and height of each image come from, 
>> if you are reading the list of filenames from a directory?
>>
>> martin
>>  
>>
>> On Tue, May 11, 2021 at 3:42 PM Robert Haisfield  
>> wrote:
>>
>>> Okay, so I figured out how to do what I want on individual photos using 
>>> bitmap/file and 2htdp/image, but I'm trying to find a more programmatic way 
>>> to do it. Basically, I'd love to create a data structure that feeds into 
>>> the file path, width, and height into the image-resizer function. Even 
>>> better if I could point the function at a directory, it finds all of the 
>>> images in it, and creates the data structure for me. Any ideas?
>>>
>>> *No, I'm not trying to just resize photos (this would be much easier if 
>>> that's all I had to do), the thing I'm working with requires me to add 
>>> whitespace to the sides of the images to have them display properly.*
>>>
>>> [image: CleanShot 2021-05-11 at 16.31...@2x.png]
>>>
>>> On Tuesday, May 11, 2021 at 3:06:20 PM UTC-6 Jens Axel Søgaard wrote:
>>>
 Hi Robert,

 There are some bindings for Magick in the example folder for the FFI 
 library.


 https://github.com/racket/racket/tree/master/pkgs/racket-doc/ffi/examples

 The bindings are in magic.rkt and examples of use are in use-magick.rkt 
 (see the bottom).

 /Jens Axel


 Den tir. 11. maj 2021 kl. 22.15 skrev 'John Clements' via Racket Users <
 racket...@googlegroups.com>:

> Racket has the ability to read a variety of different image files. I 
> would go first to 2htdp/image’s “bitmap/file” to read images. 
> “save-image” 
> can write images (but only as png files). I believe there are also an 
> array 
> of lower-level image manipulation functions that are likely to have a 
> less 
> friendly interface :).
>
> Apologies in advance for any misleading information I might be 
> providing….
>
> John
>
> > On May 11, 2021, at 1:09 PM, Robert Haisfield  
> wrote:
> > 
> > Alternatively, does the normal images function for Racket work? When 
> I was looking through the documentation I saw a lot about creating shapes 
> but not about using image files.
> > 
> > On Tuesday, May 11, 2021 at 2:03:33 PM UTC-6 Robert Haisfield wrote:
> > Hmm does the video language work for image files? If so, then I 
> think it might work.
> > 
> > On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:
> > I hope that has what Robert is looking for, but I don't recognize 
> that speech. In fact, I have a false memory, because I'm not finding the 
> speech I'm looking for on https://con.racket-lang.org/2018/#speakers
> > 
> > On 5/11/21 10:19 AM, Bruce O'Neel wrote:
> >> This might be it.
> >> 
> >> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story 
> of a Racket - YouTube
> >> 
> >> 
> >> 
> 

Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Robert Haisfield]

Dan, that's awesome. Thank you.

Martin, I would love some way to extract the image metadata from each of 
the files outputted by Dan's function. All my function does is take the 
current width and height and apply some math to return some new values, so 
right now I'm just manually going into finder, looking at the images width 
and height, and plugging those values into my function. 

On Tuesday, May 11, 2021 at 7:31:15 PM UTC-6 martin...@gmail.com wrote:

> So to clarify, you want something like the following (pseudocode)?
>
> (define (process-image transform image-file-data)
>(let* ([path (get-full-path image-file-data)]
>   [image (bitmap/file path)]
>   [new-image (transform image)])
> (save-image new-image path))
>
> (define (process-file path)
>   (let ([image-file-data (extract-image-metadata path)])
>  (process-image resize image-file-data)))
>
> (map process-file (find-all-images directory))
>
> One question - where do the new width and height of each image come from, 
> if you are reading the list of filenames from a directory?
>
> martin
>  
>
> On Tue, May 11, 2021 at 3:42 PM Robert Haisfield  
> wrote:
>
>> Okay, so I figured out how to do what I want on individual photos using 
>> bitmap/file and 2htdp/image, but I'm trying to find a more programmatic way 
>> to do it. Basically, I'd love to create a data structure that feeds into 
>> the file path, width, and height into the image-resizer function. Even 
>> better if I could point the function at a directory, it finds all of the 
>> images in it, and creates the data structure for me. Any ideas?
>>
>> *No, I'm not trying to just resize photos (this would be much easier if 
>> that's all I had to do), the thing I'm working with requires me to add 
>> whitespace to the sides of the images to have them display properly.*
>>
>> [image: CleanShot 2021-05-11 at 16.31...@2x.png]
>>
>> On Tuesday, May 11, 2021 at 3:06:20 PM UTC-6 Jens Axel Søgaard wrote:
>>
>>> Hi Robert,
>>>
>>> There are some bindings for Magick in the example folder for the FFI 
>>> library.
>>>
>>> https://github.com/racket/racket/tree/master/pkgs/racket-doc/ffi/examples
>>>
>>> The bindings are in magic.rkt and examples of use are in use-magick.rkt 
>>> (see the bottom).
>>>
>>> /Jens Axel
>>>
>>>
>>> Den tir. 11. maj 2021 kl. 22.15 skrev 'John Clements' via Racket Users <
>>> racket...@googlegroups.com>:
>>>
 Racket has the ability to read a variety of different image files. I 
 would go first to 2htdp/image’s “bitmap/file” to read images. “save-image” 
 can write images (but only as png files). I believe there are also an 
 array 
 of lower-level image manipulation functions that are likely to have a less 
 friendly interface :).

 Apologies in advance for any misleading information I might be 
 providing….

 John

 > On May 11, 2021, at 1:09 PM, Robert Haisfield  
 wrote:
 > 
 > Alternatively, does the normal images function for Racket work? When 
 I was looking through the documentation I saw a lot about creating shapes 
 but not about using image files.
 > 
 > On Tuesday, May 11, 2021 at 2:03:33 PM UTC-6 Robert Haisfield wrote:
 > Hmm does the video language work for image files? If so, then I think 
 it might work.
 > 
 > On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:
 > I hope that has what Robert is looking for, but I don't recognize 
 that speech. In fact, I have a false memory, because I'm not finding the 
 speech I'm looking for on https://con.racket-lang.org/2018/#speakers
 > 
 > On 5/11/21 10:19 AM, Bruce O'Neel wrote:
 >> This might be it.
 >> 
 >> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story 
 of a Racket - YouTube
 >> 
 >> 
 >> 
 >> 
 >> 
 >> 11 May 2021 15:30 Sage Gerard  wrote:
 >> I don't know of one off hand, but I believe RacketCon 2018 (?) 
 included a presenter that showed a PostScript-like DSL for designers and 
 artists.  If pict not cover your needs, maybe dig into the presentations?
 >> 
 >> Failing that, can you show what you'd hope the syntax would look 
 like? That would probably help point you in the right direction,
 >> 
 >> On 5/11/21 9:26 AM, Robert Haisfield wrote:
 >>> I have to do a bunch of .jpg and .png image resizings and was 
 looking for a programmatic way to do it. Is their a Racket DSL for this? --
 >>> You received this message because you are subscribed to the Google 
 Groups "Racket Users" group.
 >>> To unsubscribe from this group and stop receiving emails from it, 
 send an email to racket-users...@googlegroups.com.
 >>> To view this discussion on the web visit 
 https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com
 .
 >> -- ~slg --
 >> You received this message because 

Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Daniel Prager]

Hi Robert

> Even better if I could point the function at a directory, it finds all of
the images in it, and creates the data structure for me. Any ideas?

You can get the files in a directory using *directory-list *and filter for
the image files using a regex.

(for ([f (directory-list "/some/path")] #:when (regexp-match? "\\.png$" f))
 (displayln f))

Dan

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Robert Haisfield]

More specifically, I'm trying to do what I talk about here. Can I do this 
in Racket? https://twitter.com/RobertHaisfield/status/1392272268022095872

On Tuesday, May 11, 2021 at 4:42:43 PM UTC-6 Robert Haisfield wrote:

> Okay, so I figured out how to do what I want on individual photos using 
> bitmap/file and 2htdp/image, but I'm trying to find a more programmatic way 
> to do it. Basically, I'd love to create a data structure that feeds into 
> the file path, width, and height into the image-resizer function. Even 
> better if I could point the function at a directory, it finds all of the 
> images in it, and creates the data structure for me. Any ideas?
>
> *No, I'm not trying to just resize photos (this would be much easier if 
> that's all I had to do), the thing I'm working with requires me to add 
> whitespace to the sides of the images to have them display properly.*
>
> [image: CleanShot 2021-05-11 at 16.31...@2x.png]
>
> On Tuesday, May 11, 2021 at 3:06:20 PM UTC-6 Jens Axel Søgaard wrote:
>
>> Hi Robert,
>>
>> There are some bindings for Magick in the example folder for the FFI 
>> library.
>>
>> https://github.com/racket/racket/tree/master/pkgs/racket-doc/ffi/examples
>>
>> The bindings are in magic.rkt and examples of use are in use-magick.rkt 
>> (see the bottom).
>>
>> /Jens Axel
>>
>>
>> Den tir. 11. maj 2021 kl. 22.15 skrev 'John Clements' via Racket Users <
>> racket...@googlegroups.com>:
>>
>>> Racket has the ability to read a variety of different image files. I 
>>> would go first to 2htdp/image’s “bitmap/file” to read images. “save-image” 
>>> can write images (but only as png files). I believe there are also an array 
>>> of lower-level image manipulation functions that are likely to have a less 
>>> friendly interface :).
>>>
>>> Apologies in advance for any misleading information I might be 
>>> providing….
>>>
>>> John
>>>
>>> > On May 11, 2021, at 1:09 PM, Robert Haisfield  
>>> wrote:
>>> > 
>>> > Alternatively, does the normal images function for Racket work? When I 
>>> was looking through the documentation I saw a lot about creating shapes but 
>>> not about using image files.
>>> > 
>>> > On Tuesday, May 11, 2021 at 2:03:33 PM UTC-6 Robert Haisfield wrote:
>>> > Hmm does the video language work for image files? If so, then I think 
>>> it might work.
>>> > 
>>> > On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:
>>> > I hope that has what Robert is looking for, but I don't recognize that 
>>> speech. In fact, I have a false memory, because I'm not finding the speech 
>>> I'm looking for on https://con.racket-lang.org/2018/#speakers
>>> > 
>>> > On 5/11/21 10:19 AM, Bruce O'Neel wrote:
>>> >> This might be it.
>>> >> 
>>> >> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story 
>>> of a Racket - YouTube
>>> >> 
>>> >> 
>>> >> 
>>> >> 
>>> >> 
>>> >> 11 May 2021 15:30 Sage Gerard  wrote:
>>> >> I don't know of one off hand, but I believe RacketCon 2018 (?) 
>>> included a presenter that showed a PostScript-like DSL for designers and 
>>> artists.  If pict not cover your needs, maybe dig into the presentations?
>>> >> 
>>> >> Failing that, can you show what you'd hope the syntax would look 
>>> like? That would probably help point you in the right direction,
>>> >> 
>>> >> On 5/11/21 9:26 AM, Robert Haisfield wrote:
>>> >>> I have to do a bunch of .jpg and .png image resizings and was 
>>> looking for a programmatic way to do it. Is their a Racket DSL for this? --
>>> >>> You received this message because you are subscribed to the Google 
>>> Groups "Racket Users" group.
>>> >>> To unsubscribe from this group and stop receiving emails from it, 
>>> send an email to racket-users...@googlegroups.com.
>>> >>> To view this discussion on the web visit 
>>> https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com
>>> .
>>> >> -- ~slg --
>>> >> You received this message because you are subscribed to the Google 
>>> Groups "Racket Users" group.
>>> >> To unsubscribe from this group and stop receiving emails from it, 
>>> send an email to racket-users...@googlegroups.com.
>>> >> To view this discussion on the web visit 
>>> https://groups.google.com/d/msgid/racket-users/6e3aacdc-015b-2484-3bee-0c08e3fb612d%40sagegerard.com
>>> .
>>> >> 
>>> >> -- 
>>> >> You received this message because you are subscribed to the Google 
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>>> .
>>> > --
>>> > ~slg
>>> > 
>>> > 
>>> > -- 
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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Jens Axel Søgaard]

Hi Robert,

There are some bindings for Magick in the example folder for the FFI
library.

https://github.com/racket/racket/tree/master/pkgs/racket-doc/ffi/examples

The bindings are in magic.rkt and examples of use are in use-magick.rkt
(see the bottom).

/Jens Axel


Den tir. 11. maj 2021 kl. 22.15 skrev 'John Clements' via Racket Users <
racket-users@googlegroups.com>:

> Racket has the ability to read a variety of different image files. I would
> go first to 2htdp/image’s “bitmap/file” to read images. “save-image” can
> write images (but only as png files). I believe there are also an array of
> lower-level image manipulation functions that are likely to have a less
> friendly interface :).
>
> Apologies in advance for any misleading information I might be providing….
>
> John
>
> > On May 11, 2021, at 1:09 PM, Robert Haisfield <
> roberthhaisfi...@gmail.com> wrote:
> >
> > Alternatively, does the normal images function for Racket work? When I
> was looking through the documentation I saw a lot about creating shapes but
> not about using image files.
> >
> > On Tuesday, May 11, 2021 at 2:03:33 PM UTC-6 Robert Haisfield wrote:
> > Hmm does the video language work for image files? If so, then I think it
> might work.
> >
> > On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:
> > I hope that has what Robert is looking for, but I don't recognize that
> speech. In fact, I have a false memory, because I'm not finding the speech
> I'm looking for on https://con.racket-lang.org/2018/#speakers
> >
> > On 5/11/21 10:19 AM, Bruce O'Neel wrote:
> >> This might be it.
> >>
> >> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story of
> a Racket - YouTube
> >>
> >>
> >>
> >>
> >>
> >> 11 May 2021 15:30 Sage Gerard  wrote:
> >> I don't know of one off hand, but I believe RacketCon 2018 (?) included
> a presenter that showed a PostScript-like DSL for designers and artists.
> If pict not cover your needs, maybe dig into the presentations?
> >>
> >> Failing that, can you show what you'd hope the syntax would look like?
> That would probably help point you in the right direction,
> >>
> >> On 5/11/21 9:26 AM, Robert Haisfield wrote:
> >>> I have to do a bunch of .jpg and .png image resizings and was looking
> for a programmatic way to do it. Is their a Racket DSL for this? --
> >>> You received this message because you are subscribed to the Google
> Groups "Racket Users" group.
> >>> To unsubscribe from this group and stop receiving emails from it, send
> an email to racket-users...@googlegroups.com.
> >>> To view this discussion on the web visit
> https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com
> .
> >> -- ~slg --
> >> You received this message because you are subscribed to the Google
> Groups "Racket Users" group.
> >> To unsubscribe from this group and stop receiving emails from it, send
> an email to racket-users...@googlegroups.com.
> >> To view this discussion on the web visit
> https://groups.google.com/d/msgid/racket-users/6e3aacdc-015b-2484-3bee-0c08e3fb612d%40sagegerard.com
> .
> >>
> >> --
> >> You received this message because you are subscribed to the Google
> Groups "Racket Users" group.
> >> To unsubscribe from this group and stop receiving emails from it, send
> an email to racket-users...@googlegroups.com.
> >> To view this discussion on the web visit
> https://groups.google.com/d/msgid/racket-users/1620742795-01b81de5d6862fd390ec60605ee3bc9d%40pckswarms.ch
> .
> > --
> > ~slg
> >
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups "Racket Users" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an email to racket-users+unsubscr...@googlegroups.com.
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> https://groups.google.com/d/msgid/racket-users/b6a89a78-c92c-41c1-960a-49d64d8a5366n%40googlegroups.com
> .
>
> --
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> .
>


-- 
-- 
Jens Axel Søgaard

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

['John Clements' via Racket Users]

Racket has the ability to read a variety of different image files. I would go 
first to 2htdp/image’s “bitmap/file” to read images. “save-image” can write 
images (but only as png files). I believe there are also an array of 
lower-level image manipulation functions that are likely to have a less 
friendly interface :).

Apologies in advance for any misleading information I might be providing….

John

> On May 11, 2021, at 1:09 PM, Robert Haisfield  
> wrote:
> 
> Alternatively, does the normal images function for Racket work? When I was 
> looking through the documentation I saw a lot about creating shapes but not 
> about using image files.
> 
> On Tuesday, May 11, 2021 at 2:03:33 PM UTC-6 Robert Haisfield wrote:
> Hmm does the video language work for image files? If so, then I think it 
> might work.
> 
> On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:
> I hope that has what Robert is looking for, but I don't recognize that 
> speech. In fact, I have a false memory, because I'm not finding the speech 
> I'm looking for on https://con.racket-lang.org/2018/#speakers
> 
> On 5/11/21 10:19 AM, Bruce O'Neel wrote:
>> This might be it.
>> 
>> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story of a 
>> Racket - YouTube
>> 
>> 
>> 
>> 
>> 
>> 11 May 2021 15:30 Sage Gerard  wrote:
>> I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
>> presenter that showed a PostScript-like DSL for designers and artists.  If 
>> pict not cover your needs, maybe dig into the presentations?
>> 
>> Failing that, can you show what you'd hope the syntax would look like? That 
>> would probably help point you in the right direction,
>> 
>> On 5/11/21 9:26 AM, Robert Haisfield wrote:
>>> I have to do a bunch of .jpg and .png image resizings and was looking for a 
>>> programmatic way to do it. Is their a Racket DSL for this? --
>>> You received this message because you are subscribed to the Google Groups 
>>> "Racket Users" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an 
>>> email to racket-users...@googlegroups.com.
>>> To view this discussion on the web visit 
>>> https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com.
>> -- ~slg --
>> You received this message because you are subscribed to the Google Groups 
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to racket-users...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/racket-users/6e3aacdc-015b-2484-3bee-0c08e3fb612d%40sagegerard.com.
>> 
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to racket-users...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/racket-users/1620742795-01b81de5d6862fd390ec60605ee3bc9d%40pckswarms.ch.
> --
> ~slg
> 
> 
> -- 
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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Robert Haisfield]

Alternatively, does the normal images function for Racket work? When I was 
looking through the documentation I saw a lot about creating shapes but not 
about using image files.

On Tuesday, May 11, 2021 at 2:03:33 PM UTC-6 Robert Haisfield wrote:

> Hmm does the video language work for image files? If so, then I think it 
> might work.
>
> On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:
>
>> I hope that has what Robert is looking for, but I don't recognize that 
>> speech. In fact, I have a false memory, because I'm not finding the speech 
>> I'm looking for on https://con.racket-lang.org/2018/#speakers
>> On 5/11/21 10:19 AM, Bruce O'Neel wrote:
>>
>> This might be it.
>>
>> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story of a 
>> Racket - YouTube 
>> 
>>
>>
>>
>>
>>
>>
>> *11 May 2021 15:30 Sage Gerard  wrote:*
>>
>> I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
>> presenter that showed a PostScript-like DSL for designers and artists.  If 
>> pict not cover your needs, maybe dig into the presentations?
>>
>> Failing that, can you show what you'd hope the syntax would look like? 
>> That would probably help point you in the right direction,
>> On 5/11/21 9:26 AM, Robert Haisfield wrote:
>>
>> I have to do a bunch of .jpg and .png image resizings and was looking for 
>> a programmatic way to do it. Is their a Racket DSL for this? --
>> You received this message because you are subscribed to the Google Groups 
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to racket-users...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com
>>  
>> 
>> .
>>
>> -- ~slg --
>> You received this message because you are subscribed to the Google Groups 
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to racket-users...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/racket-users/6e3aacdc-015b-2484-3bee-0c08e3fb612d%40sagegerard.com
>>  
>> 
>> .
>>
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to racket-users...@googlegroups.com.
>>
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/racket-users/1620742795-01b81de5d6862fd390ec60605ee3bc9d%40pckswarms.ch
>>  
>> 
>> .
>>
>> --
>> ~slg
>>
>>

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Robert Haisfield]

Hmm does the video language work for image files? If so, then I think it 
might work.

On Tuesday, May 11, 2021 at 9:03:35 AM UTC-6 Sage Gerard wrote:

> I hope that has what Robert is looking for, but I don't recognize that 
> speech. In fact, I have a false memory, because I'm not finding the speech 
> I'm looking for on https://con.racket-lang.org/2018/#speakers
> On 5/11/21 10:19 AM, Bruce O'Neel wrote:
>
> This might be it.
>
> (seventh RacketCon): Leif Andersen -- Movies as Programs: The Story of a 
> Racket - YouTube 
> 
>
>
>
>
>
>
> *11 May 2021 15:30 Sage Gerard  wrote:*
>
> I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
> presenter that showed a PostScript-like DSL for designers and artists.  If 
> pict not cover your needs, maybe dig into the presentations?
>
> Failing that, can you show what you'd hope the syntax would look like? 
> That would probably help point you in the right direction,
> On 5/11/21 9:26 AM, Robert Haisfield wrote:
>
> I have to do a bunch of .jpg and .png image resizings and was looking for 
> a programmatic way to do it. Is their a Racket DSL for this? --
> You received this message because you are subscribed to the Google Groups 
> "Racket Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to racket-users...@googlegroups.com.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com
>  
> 
> .
>
> -- ~slg --
> You received this message because you are subscribed to the Google Groups 
> "Racket Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to racket-users...@googlegroups.com.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/racket-users/6e3aacdc-015b-2484-3bee-0c08e3fb612d%40sagegerard.com
>  
> 
> .
>
>
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Racket Users" group.
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> email to racket-users...@googlegroups.com.
>
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> https://groups.google.com/d/msgid/racket-users/1620742795-01b81de5d6862fd390ec60605ee3bc9d%40pckswarms.ch
>  
> 
> .
>
> --
> ~slg
>
>

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Sage Gerard]

I hope that has what Robert is looking for, but I don't recognize that speech. 
In fact, I have a false memory, because I'm not finding the speech I'm looking 
for on https://con.racket-lang.org/2018/#speakers

On 5/11/21 10:19 AM, Bruce O'Neel wrote:

> This might be it.
>
> [(seventh RacketCon): Leif Andersen -- Movies as Programs: The Story of a 
> Racket - 
> YouTube](https://www.youtube.com/watch?v=OZXslNVaCOQ=PLXr4KViVC0qIgkwFFzM-0we_aoOfAl16Y=3)
>
> 11 May 2021 15:30 Sage Gerard 
> [](mailto:s...@sagegerard.com) wrote:
>
>> I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
>> presenter that showed a PostScript-like DSL for designers and artists. If 
>> pict not cover your needs, maybe dig into the presentations?
>>
>> Failing that, can you show what you'd hope the syntax would look like? That 
>> would probably help point you in the right direction,
>>
>> On 5/11/21 9:26 AM, Robert Haisfield wrote:
>>
>>> I have to do a bunch of .jpg and .png image resizings and was looking for a 
>>> programmatic way to do it. Is their a Racket DSL for this? --
>>> You received this message because you are subscribed to the Google Groups 
>>> "Racket Users" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an 
>>> email to racket-users+unsubscr...@googlegroups.com.
>>> To view this discussion on the web visit 
>>> [https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com](https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com?utm_medium=email_source=footer).
>>
>> -- ~slg --
>> You received this message because you are subscribed to the Google Groups 
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>
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--
~slg

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Bruce O'Neel]

This might be it.  
  

  
  
  
  
  
  

> I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
> presenter that showed a PostScript-like DSL for designers and artists.  If 
> pict not cover your needs, maybe dig into the presentations?  
> Failing that, can you show what you'd hope the syntax would look like? That 
> would probably help point you in the right direction,  
> On 5/11/21 9:26 AM, Robert Haisfield wrote:  
> > I have to do a bunch of .jpg and .png image resizings and was looking for a 
> > programmatic way to do it. Is their a Racket DSL for this? --  
> >  You received this message because you are subscribed to the Google Groups 
> > "Racket Users" group.  
> >  To unsubscribe from this group and stop receiving emails from it, send an 
> > email to 
> > [racket-users+unsubscr...@googlegroups.com](mailto:racket-users+unsubscr...@googlegroups.com).
> >   
> >  To view this discussion on the web visit .
> --  ~slg --  
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>   
>  To view this discussion on the web visit .
  

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Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

[Sage Gerard]

I don't know of one off hand, but I believe RacketCon 2018 (?) included a 
presenter that showed a PostScript-like DSL for designers and artists. If pict 
not cover your needs, maybe dig into the presentations?

Failing that, can you show what you'd hope the syntax would look like? That 
would probably help point you in the right direction,

On 5/11/21 9:26 AM, Robert Haisfield wrote:

> I have to do a bunch of .jpg and .png image resizings and was looking for a 
> programmatic way to do it. Is their a Racket DSL for this? --
> You received this message because you are subscribed to the Google Groups 
> "Racket Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to racket-users+unsubscr...@googlegroups.com.
> To view this discussion on the web visit 
> [https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com](https://groups.google.com/d/msgid/racket-users/0d576c32-7d4d-4944-9cbc-c12f04406fccn%40googlegroups.com?utm_medium=email_source=footer).

--
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[racket-users] Is there a good Racket DSL alternative to Image Magick?

[Robert Haisfield]

I have to do a bunch of .jpg and .png image resizings and was looking for a 
programmatic way to do it. Is their a Racket DSL for this?

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