Opacity     http://likethought.com/opacity/     tags: iphone vector osx GCDrawKit - A complete framework for vector drawing     DrawKit - A cocoa framework for drawing Flexible and powerful architecture for vector drawing applications     http://www.apptree.net/drawkit.htm     tags: osx vector Drawing Conclusions | Jettison Canopy     Adobe Illustrator was the first advanced program I learned to use. Coming from an architectural drafting experience, I found that Illustrator was a far better match for my brain, skill and disposition than image editors like Photoshop. So are there alternatives? And if there are, how do they stack up?     http://jonwhipple.com/blog/2008/05/25/drawing-conclusions/     tags: osx vector Higher-Order » Blog Archive » Understanding Clojure’s Pe...     One of the unique features of Clojure is that the core data structures are persistent (immutable with efficient structural sharing). This includes data structures Vector and Map that are mutable in most other languages. To be useful, operations on persistent data structures need to have performance characteristics that are similar to their mutating counterparts; e.g., the cost of random access on a persistent vector (put/get) needs to be comparable to random access to a mutable vector. Clojure manages to achieve this. Here we focus on understanding the Clojure implementation of Vector: PersistentVector. The basics. PersistentVector stores its elements in arrays, each array having at most size 32. One can think of the arrays as forming a wide balanced tree with each node having at most 32 children.     http://blog.higher-order.net/2009/02/01/understanding-clojur...     tags: vector clojure Cenon - Free Graphics Software     Cenon is a graphical tool of a special kind. Build upon a modular graphical core, Cenon offers a wide variety of possibilities and applications. The best of all, the Cenon core is free software, available with full source codes, and at home on many computer platforms.     http://www.cenon.info/frame_gb.html     tags: vector photoshop osx Freeverse: Apps: Lineform     Lineform is the clear modern Mac alternative to Illustrator, FreeHand, and other more costly or bloated vector drawing apps.     http://www.freeverse.com/apps/app/?id=6020     tags: 2d vector osx photoshop Intaglio — Macintosh Drawing & Illustration     http://purgatorydesign.com/Intaglio/index.html     tags: osx photoshop vector Anti-Grain Geometry -     C++ 2d vector graphics     http://www.antigrain.com/     tags: c_ 2d vector (( Create by Stone Design )) --> Create     from its humble beginnings in 1989 on the NeXT Computer comes Stone Design’s professional revolutionary drawing, layout and publish-to-web or print application called...     http://www.stone.com/Create/Create.html     tags: osx photoshop vector