remove FX2D examples

contributed/recursive_pentagon.rb

@@ -0,0 +1,89 @@
+#!/usr/bin/env jruby
+require 'propane'# After an openprocessing sketch by C.Andrews
+class RecursivePentagons < Propane::App
+  attr_reader :strut_factor, :renderer
+
+  def setup
+    sketch_title 'Recursive Pentagons'
+    @strut_factor = 0.2
+    @renderer = AppRender.new self # so we can send Vec2D :to_vertex
+    background 0
+  end
+
+  def draw
+    translate(width / 2, height / 2)
+    angle = TWO_PI / 5
+    radius = width * 0.7
+    points = (0...5).map do |i|
+      x = radius * cos(angle * i)
+      y = radius * sin(angle * i)
+      Vec2D.new(x, y)
+    end
+    fractal = PentagonFractal.new(points, 5)
+    fractal.draw
+  end
+
+  def settings
+    size(800, 800)
+  end
+end
+
+RecursivePentagons.new
+
+# Here we include Processing::Proxy to mimic vanilla processing inner class
+# access.
+class PentagonFractal
+  include Propane::Proxy
+  attr_reader :points ,:branches, :level, :midpoints, :innerpoints
+  COLOURS = %w[#ff0000 #00ff00 #00ffff #0000ff #0000ff #ffffff]
+
+  def initialize(points, levels)
+    @points = points
+    @level = levels
+    return if level.zero? # so called guard clause in ruby simplifies code
+
+    @midpoints = (0...5).map do |i| # build an array of midpoints
+      midpoint(points[i], points[(i + 1) % 5])
+    end
+    @innerpoints = (0...5).map do |i| # build an array of inner points
+      opposite = points[(i + 3) % 5]
+      x = midpoints[i].x + (opposite.x - midpoints[i].x) * strut_factor
+      y = midpoints[i].y + (opposite.y - midpoints[i].y) * strut_factor
+      Vec2D.new(x, y)
+    end
+    # Create the PentagonFractal objects representing the six inner
+    # pentagons
+    # the shape is very regular, so we can build the ring of five
+    @branches = (0...5).map do |i|
+      p = [
+        midpoints[i],
+        innerpoints[i],
+        innerpoints[(i + 1) % 5],
+        midpoints[(i + 1) % 5],
+        points[(i + 1) % 5]
+      ]
+      PentagonFractal.new(p, level - 1)
+    end
+    # add the final innermost pentagon
+    branches << PentagonFractal.new(innerpoints, level - 1)
+  end
+  # This is a simple helper function that takes in two points (as Vec2D) and
+  # returns the midpoint between them as Vec2D.
+  def midpoint(point1, point2)
+    (point2 + point1) * 0.5
+  end
+
+  def draw
+    stroke 255
+    no_fill
+    begin_shape
+    stroke_weight 0.5 + 0.75 * level
+    stroke color(COLOURS[level]), 100
+    points.each do |point|
+      point.to_vertex(renderer)
+    end
+    end_shape CLOSE
+    return if level.zero?
+    branches.each(&:draw)
+  end
+end

external_library/java/handy/preset_style_demo.rb

@@ -42,7 +42,7 @@ def settings
     # Should work with all Processing 3 renderers.
     # size(1200, 800, P2D)
     # size(1200, 800, P3D)
-    # size(1200, 800, FX2D)
+    # size(1200, 800)
     pixelDensity(displayDensity) # Use platform's maximum display density.
   end
 

processing_app/basics/arrays/array_objects.rb

@@ -24,7 +24,7 @@ def draw
   end
 
   def settings
-    size 640, 360, FX2D
+    size 640, 360
   end
 
   module Runnable

processing_app/basics/arrays/custom_array.rb

@@ -24,7 +24,7 @@ def draw
   end
 
   def settings
-    size 640, 360, FX2D
+    size 640, 360
   end
 
   # The Particle object

processing_app/basics/color/blend_color.rb

@@ -25,7 +25,7 @@ def draw
   end
 
   def settings
-    size 100, 100, FX2D
+    size 100, 100
   end
 end
 

processing_app/basics/color/color_wheel.rb

@@ -93,7 +93,7 @@ def mouse_pressed
 end
 
 def settings
-size 640, 360, FX2D
+size 640, 360
 end
 end
 

processing_app/basics/color/saturation.rb

@@ -26,7 +26,7 @@ def draw
   end
 
   def settings
-    size 640, 360, FX2D
+    size 640, 360
   end
 end
 

processing_app/demos/performance/text_rendering.rb

@@ -19,7 +19,7 @@ def draw
   end
 
   def settings
-    size(800, 600, FX2D)
+    size(800, 600)
   end
 end
 

processing_app/demos/tests/no_background_test.rb

@@ -15,7 +15,7 @@ def draw
   end
 
   def settings
-    size(400, 400, FX2D)
+    size(400, 400)
   end
 end
 

processing_app/demos/tests/redraw_test.rb

@@ -20,7 +20,7 @@ def key_pressed
   end
 
   def settings
-    size(400, 400, FX2D)
+    size(400, 400)
   end
 end
 

processing_app/demos/tests/resize_test.rb

@@ -16,7 +16,7 @@ def draw
   end
 
   def settings
-    size(400, 400, FX2D)
+    size(400, 400)
   end
 end
 

processing_app/topics/advanced_data/load_save_json.rb

@@ -25,7 +25,7 @@ def draw
   end
 
   def settings
-    size 640, 360, FX2D
+    size 640, 360
   end
 
   def mouse_pressed

processing_app/topics/gui/rollover.rb

@@ -62,7 +62,7 @@ def over_circle?(x, y, diameter)
   end
 
   def settings
-    size 640, 360, FX2D
+    size 640, 360
     smooth(4)
   end
 end

processing_app/topics/lsystems/cstest.rb

@@ -29,7 +29,7 @@ def draw
   end
 
   def settings
-    size 125, 250, FX2D
+    size 125, 250
   end  
 end