diff --git a/golnaz.py b/golnaz.py
index 851d30f..8a52ec1 100755
--- a/golnaz.py
+++ b/golnaz.py
@@ -41,7 +41,7 @@ class Example(Gtk.Window):
     def on_draw(self, wid, cr):
         stroke_size = 8
         line_factor = 1/8
-        iterations = 1000
+        iterations = 10
         w, h = self.get_size()      
 
         cr.set_line_width(stroke_size)
@@ -62,7 +62,7 @@ class Example(Gtk.Window):
         stroke_size = 1
         cr.set_line_width(1)
         #qui il for delle linee sopr
-        drawBlackArea(cr,w,1,10)
+        #  drawBlackArea(cr,w,1,10)
         drawLines(cr, w, h,1, iterations)
         cr.restore()
 
@@ -72,15 +72,20 @@ class Example(Gtk.Window):
         cr.translate(0, -stroke_size/2)
         stroke_size = 1
         cr.set_line_width(1)
-        drawBlackArea(cr,w,-1,10)
+        #  drawBlackArea(cr,w,-1,10)
         drawLines(cr, w, h, -1, iterations)
 
 def drawLines(cr,w, h, direction, iterations):
-    for l in range(0,iterations):
-        cr.translate(0, direction * 1.05**l)   
+    perc_partition = 20 
+    upper_bound = (int)(iterations*perc_partition/100)
+    lower_bound = upper_bound - iterations
+    print(str(lower_bound) + " -> " + str(upper_bound))
+    for l in range(lower_bound,upper_bound):
+        #  cr.translate(0, direction * 1.05**l)
+        cr.translate(0, direction * 2.7**l)
         cr.move_to(0,0)
-#        cr.line_to(w,0)
-        drawSegmentedLine(cr,w,l)
+        #  cr.line_to(w,0)
+        drawSegmentedLine(cr,w,l+upper_bound)
         cr.stroke() 
 
 def drawBlackArea(cr,w, direction, iterations):
@@ -98,7 +103,7 @@ def drawSegmentedLine(cr,w,currIt):
     for l in range(rv,0, -1):
         lw = wresiduo/l
         lw = lw + random.uniform(-5,5)
-        deltaY = random.uniform(-currIt,currIt)
+        deltaY = random.uniform(-currIt*0.3,currIt*0.3)
         cr.move_to(0,0)
         cr.line_to(lw,deltaY)
         cr.stroke()