From 8c4226399f7093250ca334e4d249e8d70de058ca Mon Sep 17 00:00:00 2001
From: Stormwind <stormwind@stormwinds-page.de>
Date: Fri, 31 May 2013 07:28:01 +0200
Subject: [PATCH] First idea of the heatmap

Creates dummy testdata and displays them as an image.
---
 testdummy.rb | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 testdummy.rb

diff --git a/testdummy.rb b/testdummy.rb
new file mode 100644
index 0000000..ce5efd0
--- /dev/null
+++ b/testdummy.rb
@@ -0,0 +1,42 @@
+require 'RMagick'
+
+include Magick
+
+# Create a dummy list including 300 cores, with a load between 0 and 100
+numberGenerator = Random.new()
+
+# heatmap over 5 minutes by one measure per 5 sec
+dummyList = Array.new(60) do
+  # 16 dummy cores
+  cores = Array.new(16) { numberGenerator.rand(100) }
+  # every 10 load percent one heatpoint
+  i = 0
+  Array.new(10) do
+    amount = cores.select { |core| core >= i and core < (i+10)}.length
+    i = i + 10
+    amount
+  end
+end
+
+# puts dummyList.inspect
+
+# start drawing the damn thing
+loadImg = Image.new(900,150) { self.background_color = "white" }
+
+i = 0
+dummyList.each do |point|
+  j = 0
+  point.each do |cores|
+    # draw a red rectangle on the white background
+    core = Draw.new
+
+    l = (255-((cores*7.96875))).round
+    core.fill(Pixel.from_hsla(0, 255, l, 1).to_color)
+    core.rectangle((i*15), (j*15), ((i+1)*15), ((j+1)*15))
+    core.draw loadImg
+    j = j + 1
+  end
+  i = i + 1
+end
+
+loadImg.display