samll

processing_app/library/video/README.md

@@ -1,4 +1,4 @@
-###README
+###  README
 
 You will need to install the video library from processing.org (since it is no longer included in the vanilla processing distro), this is easiest done from the processing ide, see the [Dan Shiffman video][] on video capture.
 [Dan Shiffman video]:http://vimeo.com/115436609

processing_app/topics/advanced_data/load_save_nokogiri.rb

@@ -0,0 +1,68 @@
+#
+# Loading doc Data
+# by Daniel Shiffman.
+#
+# This example demonstrates how to use loaddoc
+# to retrieve data from an doc file and make objects
+# from that data.
+#
+# Here is what the doc looks like:
+#
+# <?doc version='1.0'?>
+# <bubbles>
+#  <bubble>
+#    <position x='160' y='103'/>
+#    <diameter>43.19838</diameter>
+#    <label>Happy</label>
+#  </bubble>
+#  <bubble>
+#    <position x='372' y='137'/>
+#    <diameter>52.42526</diameter>
+#    <label>Sad</label>
+#  </bubble>
+# </bubbles>
+#
+require 'nokogiri'
+load_library 'bubble'
+
+attr_reader :bubbles
+
+def setup
+  sketch_title 'Load save Nokogiri'
+  load_data
+end
+
+def draw
+  background(255)
+  # Display all bubbles
+  bubbles.each do |b|
+    b.display
+    b.rollover(mouse_x, mouse_y)
+  end
+  text_align(LEFT)
+  fill(0)
+  text('Click to add bubbles.', 10, height - 10)
+end
+
+def load_data
+  # Load doc file
+  file = File.open(data_path('data.xml'), 'r')
+  doc = Nokogiri.XML(file)
+  sketch_title 'Load & Save doc'
+  # total doc elements named 'bubble'
+  @bubbles = []
+  doc.xpath("*[//bubble]").each do |b|
+    diameter = b.at_xpath("//diameter").content.to_f
+    label = b.at_xpath("//label").content
+    position = b.at_xpath("//position")
+    x = position['x'].value.to_f
+    y = position['y'].value.to_f
+    # Make a Bubble object out of the data read
+    bubbles << Bubble.new(x, y, diameter, label)
+  end
+  file.close
+end
+
+def settings
+  size(640, 360)
+end