4 ms·

Online SVG figures with Haskell

56 points by njs12345 15y ago

xtacy 15y ago
Pretty! How does it compare with MetaPost's capabilities? http://en.wikipedia.org/wiki/MetaPost http://en.wikipedia.org/wiki/MetaPost. This page lists a ton of examples of things possible with Metapost: http://tex.loria.fr/prod-graph/zoonekynd/metapost/metapost.html http://tex.loria.fr/prod-graph/zoonekynd/metapost/metapost.h....
- divip 15y ago
  The main purpose of MetaPost is creating figures for books, but this is just an educational tool (in this form).
andrewflnr 15y ago
This reminds me of experiments I did in using Lua to generate SVG. With a little work, I thought it could make a useful replacement format for vector graphics (if anyone would adopt it; not too likely). It was nice to able to use control structures, especially loops and random numbers, to generate images. I definitely think XML is not the best format. Maybe something based on Haskell or some other functional language could work?
- simcop2387 15y ago
  If you found that interesting, check out Pov-Ray. It does the same thing with 3D. Doesn't output any kind of vector format (that I know of), but the scenes are all described in a Turing-Complete language like that.
  - andrewflnr 15y ago
    Yes, that's very cool. Thanks.
aristidb 15y ago
Very nice! But am I the only person who thinks that the parameter order on (<|>) is the wrong way? :)
- mr23 15y ago
  I think they did that because it's like a bind, i.e. circle 5 <|> rect 8 8 puts a <circle> out first then a <rect> so it seems kind of like the IO monad in that it's ordered
daralthus 15y ago
The site has great interactive tutorials (well in hungarian) if you want to learn some haskell. Check them also! [1] I learn by that in school, so good you posted I almost forget my homework :) [1] http://pnyf.inf.elte.hu/fp/Index.xml http://pnyf.inf.elte.hu/fp/Index.xml
carterschonwald 15y ago
Not sure which library they're using, but it could be http://hackage.haskell.org/package/diagrams http://hackage.haskell.org/package/diagrams
- divip 15y ago
  Almost; it is http://hackage.haskell.org/package/dia-functions http://hackage.haskell.org/package/dia-functions

56 points by njs12345 15y ago

xtacy 15y ago

Pretty! How does it compare with MetaPost's capabilities? http://en.wikipedia.org/wiki/MetaPost http://en.wikipedia.org/wiki/MetaPost. This page lists a ton of examples of things possible with Metapost: http://tex.loria.fr/prod-graph/zoonekynd/metapost/metapost.html http://tex.loria.fr/prod-graph/zoonekynd/metapost/metapost.h....

divip 15y ago
The main purpose of MetaPost is creating figures for books, but this is just an educational tool (in this form).

andrewflnr 15y ago

This reminds me of experiments I did in using Lua to generate SVG. With a little work, I thought it could make a useful replacement format for vector graphics (if anyone would adopt it; not too likely). It was nice to able to use control structures, especially loops and random numbers, to generate images. I definitely think XML is not the best format. Maybe something based on Haskell or some other functional language could work?

simcop2387 15y ago
If you found that interesting, check out Pov-Ray. It does the same thing with 3D. Doesn't output any kind of vector format (that I know of), but the scenes are all described in a Turing-Complete language like that.
- andrewflnr 15y ago
  Yes, that's very cool. Thanks.

aristidb 15y ago

Very nice! But am I the only person who thinks that the parameter order on (<|>) is the wrong way? :)

mr23 15y ago
I think they did that because it's like a bind, i.e. circle 5 <|> rect 8 8 puts a <circle> out first then a <rect> so it seems kind of like the IO monad in that it's ordered

daralthus 15y ago

The site has great interactive tutorials (well in hungarian) if you want to learn some haskell. Check them also! [1] I learn by that in school, so good you posted I almost forget my homework :) [1] http://pnyf.inf.elte.hu/fp/Index.xml http://pnyf.inf.elte.hu/fp/Index.xml

carterschonwald 15y ago

Not sure which library they're using, but it could be http://hackage.haskell.org/package/diagrams http://hackage.haskell.org/package/diagrams

divip 15y ago
Almost; it is http://hackage.haskell.org/package/dia-functions http://hackage.haskell.org/package/dia-functions