Use real test data for dummy 2

testdummy2.rb

@@ -1,32 +1,18 @@
 require 'RMagick'
+require 'json'
 
 include Magick
 
-# Create a dummy list including 300 cores, with a load between 0 and 100
-numberGenerator = Random.new()
+data = JSON::load(File.new('load_values.json', 'r'))
+weigthOfOneCore = 127.5/data[0].length
 
-# heatmap over 5 minutes by one measure per 5 sec
-dummyList = Array.new(60) do
-  # 16 dummy cores
-  # lets say 10 cores have a load up to 10%
-  # 4 have a load up to 30%
-  # and 2 have a load up to 100%
-  j = 0
-  cores = Array.new(16) do
-    j = j + 1
-    case
-      when j <= 10
-        numberGenerator.rand(10)
-      when (j >= 11 and j <= 14)
-        numberGenerator.rand(30)
-      when (j >= 15 and j <= 16)
-        numberGenerator.rand(100)
-    end
-  end
+# prepare data
+dummyList = Array.new()
 
+data.each do |cores|
   # every 10 load percent one heatpoint
   i = 0
-  Array.new(10) do
+  dummyList << Array.new(10) do
     amount = cores.select { |core| core >= i and core < (i+10)}.length
     i = i + 10
     amount
@@ -35,8 +21,11 @@ end
 
 # puts dummyList.inspect
 
+# image size
+x = dummyList.length*15
+
 # start drawing the damn thing
-loadImg = Image.new(900,150) { self.background_color = "white" }
+loadImg = Image.new(x,150) { self.background_color = "white" }
 
 i = 0
 dummyList.each do |point|
@@ -46,8 +35,7 @@ dummyList.each do |point|
     # draw a red rectangle on the white background
     core = Draw.new
 
-    weightedCores = 0
-    weightedCores = k**0.8*cores*7.96875 if cores != 0
+    weightedCores = k**0.8*cores*weigthOfOneCore
     weightedCores = 127.5 if weightedCores > 127.5
     l = (255-weightedCores).round
     core.fill(Pixel.from_hsla(0, 255, l, 1).to_color)
@@ -60,3 +48,4 @@ dummyList.each do |point|
 end
 
 loadImg.display
+# loadImg.write('loadimage2.png')