update examples

Author: monkstone

external_library/gem/geomerative/README.md

@@ -8,7 +8,7 @@ In [german][german]
 
 ### Examples ###
 
-The solid_type sketch is a variant of an Amon Owed sketch requires jruby_art-1.0.8 (or latest github version).
+The solid_type sketch is a variant of an Amon Owed sketch requires jruby_art-1.3.0+ (or latest github version).
 See also [geomerative.gem][gem] for more examples
 
 ### Other Examples ###

external_library/gem/geomerative/blobby_trail.rb

@@ -1,4 +1,3 @@
-# encoding: utf-8
 require 'geomerative'
 # After an original sketch by fjenett
 # Declare the objects we are going to use, so that they are accesible
@@ -33,4 +32,4 @@ def move
   @xd *= -1 unless (0..width).cover?(x)
   @y += yd
   @yd *= -1 unless (0..height).cover?(y)
-end
+end

external_library/gem/geomerative/solid_type.rb

@@ -64,19 +64,17 @@ def draw
   RG.set_polygonizer(RCommand::UNIFORMLENGTH)
   RG.set_polygonizer_length(35)
   points = wave.get_points
-  index = 0 # Letter index within the string message
   # loop through and place a letter at each point
-  MESSAGE.each_char do |letter|
-    center = RCommand.new(points[index], points[index + 1]).get_center
+  MESSAGE.chars.each_with_index do |letter, index|
+    center = RCommand.new(points[index], points[index.succ]).get_center
     fill(255)
     no_stroke
     push_matrix
     translate(center.x, center.y)
-    rotate(get_angle(points[index], points[index + 1]))
+    rotate(get_angle(points[index], points[index.succ]))
     translate(5, 20)
     font.draw(letter)
     pop_matrix
-    index += 1
   end
 end
 

external_library/gem/geomerative/text_on_geomerative_path.rb

@@ -1,16 +1,15 @@
 load_libraries :hemesh, :vbo
-
-include MS # module MS imports necessary java classes and contains ruby MeshToVBO class
-
+# module MS imports necessary java classes and contains ruby MeshToVBO class
+include MS
 RES ||= 20
 
 attr_reader :mesh_ret, :inv_mesh_ret, :render
 
 def setup
   sketch_title 'Twin Iso'
   ArcBall.init(self)
-  values = []               # build a multi-dimensional array in ruby
-  (0..RES).each do |i|    # the inclusive range is intentional here
+  values = [] # build a multi-dimensional array in ruby
+  (0..RES).each do |i| # the inclusive range is intentional here
     valu = []
     (0..RES).each do |j|
       val = []
@@ -21,27 +20,27 @@ def setup
     end
     values << valu
   end
-  
+
   creator = HEC_IsoSurface.new
   creator.set_resolution(RES, RES, RES) # number of cells in x,y,z direction
   creator.set_size(400.0 / RES, 400.0 / RES, 400.0 / RES) # cell size
-  
-  # JRuby requires a bit of help to determine correct 'java args', particulary with 
-  # overloaded arrays args as seen below. Note we are saying we have an 'array' of  
-  # 'float array' here, where the values can also be double[][][].
+
+  # JRuby requires a bit of help to determine correct 'java args', particulary
+  # with overloaded arrays args as seen below. Note we are saying we have an
+  # 'array' of 'float array' here, where the values can also be double[][][].
   java_values = values.to_java(Java::float[][]) # pre-coerce values to java
-  creator.set_values(java_values)               # the grid points
-  
-  creator.set_isolevel(1)   # isolevel to mesh
+  creator.set_values(java_values) # the grid points
+
+  creator.set_isolevel(1) # isolevel to mesh
   creator.set_invert(false) # invert mesh
   creator.set_boundary(100) # value of isoFunction outside grid
   # use creator.clear_boundary to set boundary values to "no value".
   # A boundary value of "no value" results in an open mesh
-  
+
   mesh = HE_Mesh.new(creator)
   # mesh.modify(HEM_Smooth.new.set_iterations(10).setAutoRescale(true))
   creator.set_invert(true)
-  
+
   inv_mesh = HE_Mesh.new(creator)
   inv_mesh.modify(HEM_Smooth.new.set_iterations(10).set_auto_rescale(true))
   @render = MeshToVBO.new(self)