diff -r 25c28dd19898 -r fef4317b915f src/hdalab/utils.py
--- a/src/hdalab/utils.py	Tue Aug 26 15:50:55 2014 +0200
+++ b/src/hdalab/utils.py	Tue Aug 26 18:11:26 2014 +0200
@@ -5,7 +5,6 @@
 @author: ymh and tc
 '''
 from django.core.cache import cache
-from django.http.response import Http404
 from django.utils.encoding import smart_str
 import md5
 import re
@@ -20,59 +19,5 @@
     if len(cache_key) > (250-(2+len(cache.key_prefix)+len(str(cache.version)))-33):
         cache_key = cache_key[:(250-(2+len(cache.key_prefix)+len(str(cache.version)))-33)] + '-' + md5.new(cache_key).hexdigest()
     return cache_key
-
-
-
-class NodePlacer():
-    
-    cat_nb_nodes = {}
-    
-    def init(self, cat_nb_nodes_initial):
-        raise NotImplementedError( "Should have implemented get_place" )
-    
-    def get_place(self, category):
-        if not category or category not in self.cat_nb_nodes:
-            raise Http404
-        return self.cat_nb_nodes[category].pop(0)
-
-
-
-class LineNodePlacer(NodePlacer):
-    
-    max_length = 0
-    
-    def init(self, cat_nb_nodes_initial):
-        for c in cat_nb_nodes_initial:
-            nb = cat_nb_nodes_initial[c]
-            if isinstance(cat_nb_nodes_initial[c], tuple):
-                _, nb = nb
-            self.max_length = nb if nb > self.max_length else self.max_length
-        for i_cat,c in enumerate(cat_nb_nodes_initial):
-            self.cat_nb_nodes[c] = []
-            order = i_cat
-            nb = cat_nb_nodes_initial[c]
-            if isinstance(cat_nb_nodes_initial[c], tuple):
-                order, nb = nb
-            offset = float(self.max_length - nb) / 2
-            for i in xrange(nb):
-                self.cat_nb_nodes[c].append({ "x": order*300, "y": 100*(i+offset) })
-        #logger.debug(self.cat_nb_nodes)
-
-
-
-class CircleNodePlacer(NodePlacer):
-    #TODO: Does not work. Meant to be a real circle placer
-    def init(self, cat_nb_nodes_initial):
-        for c in cat_nb_nodes_initial:
-            self.max_length = cat_nb_nodes_initial[c] if cat_nb_nodes_initial[c] > self.max_length else self.max_length
-        for i_cat,c in enumerate(cat_nb_nodes_initial):
-            self.cat_nb_nodes[c] = []
-            offset = float(self.max_length - cat_nb_nodes_initial[c]) / 2
-            for i in xrange(cat_nb_nodes_initial[c]):
-                self.cat_nb_nodes[c].append({ "x": i_cat*400, "y": 200*(i+offset) })
-        #logger.debug(self.cat_nb_nodes)
-        
-                
-    
         
         
\ No newline at end of file