Update examples for latest JRubyArt release

Replace Vec2D cross product with wedge product

To match gem release (added examples)

4.1

More algorithmic examples

Update examples to use FastNoise and Smooth Noise modules

The default behaviour is FastNoise, with tnoise option more suitable for terrain sketches. Importantly SimplexNoise generates values in range -1.0..1.0 cf Perlin noise and processing.org noise 0..1.0.

A few more examples

3.9

refactoring

Use clamp instead of constrain

Revised many sketches to use ruby-2.4 clamp to replace processing.org constrain

For JRubyArt-2.4.1

Solid Text and working Voronoi Distance Sketches

For JRubyArt-2.3.0

3.6

tidy up

For JRubyArt-2.2.2+

Added some minim examples, please feel free to add more.

For JRubyArt-1.7.0+

Examples change to use GfxRender in place of AppRender

usage:

GfxRender.new(g)
# replaces
# AppRender.new(self)

To match JRubyArt-1.6.4

3.3

doily