Show HN: Dynamic drawing application in Swift, inspired by Bret Victor talk | Hacker News Reader

Show HN: Dynamic drawing application in Swift, inspired by Bret Victor talk

github.com

58 pointslaszlokorte20 comments

Very nice. Would be great to explore geometry problems.

Another approach towards the same goal is this http://ravichugh.github.io/sketch-n-sketch/

You might consider utilizing Geometric Algebra. A lot of geometry-related things are straightforward to express with it, and there's a nice C++ library that implements it.

Are you talking about Versor? It's what came up when I Googled it.

http://versor.mat.ucsb.edu/

There's that one, and there's another one described here: http://www.geometricalgebra.net/

Thanks. I have not heard of it. I will take a closer look.

There is also a Java implementation of the same project which is little ahead in terms of some some features (expression evaluation and exporting/importing images): https://github.com/laszlokorte/reform-java

Are there any other projects similar to this?

(I'm working on something related but this came as a surprise: I've never even heard about this project even though a have been researching fanatically in this topic.)

There is also http://aprt.us/ which works more in a declarative way rather than a procedural way. (discussed here: https://news.ycombinator.com/item?id=10293368)

I know about them both, but thanks anyway. I follow BV and Toby Schachman too on Twitter. (and Eve, Chris Granger, CDG Labs and also HARC). You are the first new one in a year or so.

I've done some (not quite similar) experiments: https://vimeo.com/160730056

I wanted a quick way to edit code and see live results - to make it easier to explore/test new combinations.

This one is pretty cool as well: http://tobyschachman.com/Shadershop/

I can't get this to build - XCode 7.3.1 - and there don't seem to be any requirements in the SETUP.md that I can see - anyone know what it takes to get this to build?

I can't tell for sure from that limited information, but the most recent commit has comment "upgrade to xcode 8/swift 3". AFAIK, Xcode 7 doesn't do Swift 3.

This is in fact the issue.

Ah, thanks for spotting that. I'll hold off on checking into this project until I upgrade to XCode8 .. appreciate the effort!

In the mean time, there is a compiled version in the release page.

As kawera said you can either download the compiled version or checkout commit HEAD^5 (cc60e82c) which is compatible with XCode7

You are right. I have added a note to the readme.

So many cool projects have been borne out of the concepts in Bret's previous talks. I hope this trend continues.

And now, you inspired me :)

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