Correct samples for simplified GfxRender & ShapeRender.

Author: monkstone

contributed/elegant_ball.rb

@@ -4,7 +4,6 @@
 # Ben Notorianni aka lazydog
 #
 # elegant.rb
-java_import 'monkstone.vecmath.GfxRender'
 
 class ElegantBall < Propane::App
 
@@ -38,7 +37,7 @@ def draw
   end
 
   def renderer
-    @renderer ||= GfxRender.new(self.g)
+    @renderer ||= Propane::GfxRender.new(self.g)
   end
 
   def setup_lights

contributed/recursive_pentagon.rb

@@ -6,7 +6,7 @@ class RecursivePentagons < Propane::App
   def setup
     sketch_title 'Recursive Pentagons'
     @strut_factor = 0.2
-    @renderer = GfxRender.new self.g # so we can send Vec2D :to_vertex
+    @renderer = Propane::GfxRender.new self.g # so we can send Vec2D :to_vertex
     background 0
   end
 

contributed/ribbon_doodle.rb

@@ -86,7 +86,7 @@ def mouse_moved
 
   # An example of GfxRenderer usage for Vec3D => vertex conversion
   def renderer
-    @renderer ||= Propane::Render::GfxRender.new(self.g)
+    @renderer ||= Propane::GfxRender.new(self.g)
   end
 end
 

contributed/terrain.rb

@@ -66,7 +66,7 @@ def mouse_pressed
   private
 
   def renderer
-    @renderer ||= GfxRender.new(self.g)
+    @renderer ||= Propane::GfxRender.new(self.g)
   end
 end
 

contributed/tree.rb

@@ -8,9 +8,9 @@ class Tree < Propane::App
   # http://processing.org/learning/topics/tree.html
   # by Joe Holt
 
-  def setup
-    size 200, 200
-  end
+  # def settings
+  #  size 200, 200
+  # end
 
   def setup
     sketch_title 'Tree'

external_library/java/pgs/letter.rb

@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+require_relative 'mink_shear'
+# The letter class needs PGS module for its java_imports
+class Letter
+  include Propane::Proxy
+  include MinkShear::PGS
+  attr_reader :hue, :l, :xn, :yn, :pos, :letter
+
+  def initialize(c)
+    @pos = Vec2D.new(rand(width), rand(height))
+    list = Java::ProcessingCore::PFont.list.to_a
+    random_font = list.sample
+    font = createFont(random_font, 96, true)
+    @l = font.get_shape(c.to_java(:char))
+    @hue = rand
+    @xn = rand(4096)
+    @yn = rand(4096)
+  end
+
+  def update
+    @xn += 0.005
+    @yn += 0.005
+    pos.x = map1d(noise(xn), -1.0..1.0, 0..width)
+    pos.y = map1d(noise(yn), -1.0..1.0, 0..height)
+    @letter = PGS_Transformation.translate_to(l, 0, 0)
+    @letter = PGS_Transformation.shear(letter,
+                                       map1d(@pos.x, 0..width, -PI..PI),
+                                       map1d(@pos.y, 0..height, -PI..PI))
+    @letter = PGS_Transformation.translate_to(letter, pos.x, pos.y)
+    @letter = PGS_Morphology.simplify(letter, 1) # as some fonts have very dense vertices
+    letter.setStroke(color(hue, 1, 1))
+  end
+
+  def randomise
+    @hue = rand
+    list = Java::ProcessingCore::PFont.list.to_a
+    random_font = list.sample
+    font = createFont(random_font, 128, true)
+    @l = font.getShape(rand(0..9).to_s.to_java(:char))
+  end
+end

external_library/java/pgs/mink_shear.rb

@@ -0,0 +1,57 @@
+require 'propane'
+require_relative 'letter'
+class MinkShear < Propane::App
+load_library :pgs
+module PGS
+%w[
+  PGS_Contour PGS_Conversion PGS_Morphology PGS_Transformation PGS_ShapeBoolean
+].each do |klass|
+  java_import "micycle.pgs.#{klass}"
+end
+end
+
+include PGS
+
+attr_reader :l1, :l2
+
+def setup
+  sketch_title 'Mink Shear'
+  color_mode(HSB, 1.0)
+  @l1 = Letter.new('M')
+  @l2 = Letter.new('L')
+end
+
+def draw
+  fill(color(0.1, 0.2))
+  rect(0, 0, width, height)
+  begin
+    l1.update
+    l2.update
+    mink = PGS_Morphology.mink_sum(l1.letter, l2.letter)
+    mink = PGS_Transformation.translate_to(mink, (l1.pos.x + l2.pos.x) / 2, (l1.pos.y + l2.pos.y) / 2)
+    shape(mink)
+    shape(l1.letter)
+    shape(l2.letter)
+    shape(PGS_Contour.medialAxis(mink, 0.3, 0, 0.1))
+    intersect = PGS_ShapeBoolean.intersect(l1.letter, mink)
+    PGS_Conversion.setAllFillColor(intersect, color(0, 0.5))
+    shape(intersect)
+    intersect = PGS_ShapeBoolean.intersect(l2.letter, mink)
+    PGS_Conversion.setAllFillColor(intersect, color(0, 0.5))
+    shape(intersect)
+  rescue Java::JavaLang::Exception => e
+    puts e.to_s
+  end
+  if (frame_count % 120).zero?
+    l1.randomise
+    l2.randomise
+  end
+end
+
+def settings
+  size(800, 800)
+end
+end
+
+MinkShear.new
+

processing_app/basics/form/shape_transform.rb

@@ -17,7 +17,7 @@ class ShapeTransform < Propane::App
 
   def setup
     sketch_title 'Shape Transform'
-    @renderer = GfxRender.new(self.g)
+    @renderer = Propane::GfxRender.new(self.g)
     no_stroke
     @angle_inc = PI / 300
     @pts = 4

processing_app/basics/form/toroid.rb

@@ -109,7 +109,7 @@ def settings
   end
 
   def renderer
-    @renderer ||= GfxRender.new(self.g)
+    @renderer ||= Propane::GfxRender.new(self.g)
   end
 end
 

processing_app/basics/math/modules/module_two.rb

@@ -12,7 +12,7 @@ class ModuleTwo < Propane::App
 
   def setup
     sketch_title 'Module Two'
-    @renderer = Java::MonkstoneVecmath::GfxRender.new(self.g)
+    @renderer = Java::MonkstoneVecmath::Propane::GfxRender.new(self.g)
     frame_rate 30
     reset_scene
   end