Merge branch 'master' of git://github.com/martinstannard/ruby-processing

samples/learning_processing/chapter_15/15_2d_image_mapped_to_3d.rb

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+require 'ruby-processing'
+
+class TwoDMappedTo3dSketch < Processing::App
+
+  def setup
+    @cellsize = 2
+    @img = load_image 'sunflower.jpg' # Load the image
+    @cols = width / @cellsize         # Calculate number of columns
+    @rows = height / @cellsize        # Calculate number of rows
+    render_mode P3D
+  end
+
+  def draw
+    background 255
+    @img.load_pixels
+    # Begin loop for columns
+    @cols.times do |i|
+      # Begin loop for rows
+      @rows.times do |j|
+        x = i * @cellsize + @cellsize / 2  # x position
+        y = j * @cellsize + @cellsize / 2  # y position
+        loc = x + y * width            # Pixel array location
+        c = @img.pixels[loc]           # Grab the color
+
+        # Calculate a z position as a function of mouseX and pixel brightness
+        z = (mouseX/width.to_f) * brightness(@img.pixels[loc]) - 100.0
+
+        # Translate to the location, set fill and stroke, and draw the rect
+        push_matrix
+        translate x, y, z
+        fill c
+        no_stroke
+        rect_mode CENTER
+        rect 0, 0, @cellsize, @cellsize
+        pop_matrix
+      end
+    end
+  end
+
+end
+
+TwoDMappedTo3dSketch.new :title => "2d Mapped To 3d",  :width => 200,  :height => 200
+
+

samples/learning_processing/chapter_16/01_display_video.rb

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+require 'ruby-processing'
+
+class CaptureVideoSketch < Processing::App
+
+  # Step 1. Import the video library
+  load_java_library "video"
+  # We need the video classes to be included here.
+  include_package "processing.video" 
+
+  def setup
+    # Step 2. Declare a Capture object
+    @video = Capture.new $app, width, height, 30
+  end
+
+  def draw
+    # Check to see if a new frame is available
+    if @video.available
+      # If so,  Step 4. Read the image from the camera.
+      @video.read
+    end
+
+    # Step 5. Display the video image.
+    image @video, 0, 0
+  end
+
+end
+
+CaptureVideoSketch.new :title => "Capture Video", :width => 320, :height => 240

samples/learning_processing/chapter_16/02_manipulate_video_image.rb

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+require 'ruby-processing'
+
+class ManipulateVideoImageSketch < Processing::App
+
+  load_java_library "video"
+  include_package "processing.video" 
+
+  def setup
+    @video = Capture.new $app, width, height, 30
+  end
+
+  def draw
+    if @video.available
+      @video.read
+    end
+
+    # Tinting using mouse location
+    tint mouse_x, mouse_y, 255
+
+    # A video image can also be tinted and resized just as with a PImage.
+    image @video, 0, 0, mouse_x, mouse_y
+  end
+
+end
+
+ManipulateVideoImageSketch.new :title => "Manipulate Video Image", :width => 320, :height => 240