fix: improve ebios radar for colliding points (#1403)

* prep

* add a basic jitter function

* apply jitter to just angles for now

backend/ebios_rm/helpers.py

@@ -1,10 +1,15 @@
 from django.db.models.query import QuerySet
 import math
+import random
 
 
 def ecosystem_radar_chart_data(stakeholders_queryset: QuerySet):
     qs = stakeholders_queryset
 
+    def add_jitter(value, max_jitter=5.0):
+        """Add a small random offset to prevent perfect overlaps"""
+        return value + random.uniform(-max_jitter, max_jitter)
+
     def get_exposure_segment_id(value):
         if value < 3:
             return 1
@@ -39,10 +44,8 @@ def get_reliability_cluster(value):
 
     c_data = {"clst1": [], "clst2": [], "clst3": [], "clst4": []}
     r_data = {"clst1": [], "clst2": [], "clst3": [], "clst4": []}
-    angle_offsets = {"client": 135, "partner": 225, "supplier": 45}
+    angle_offset = {"client": 135, "partner": 225, "supplier": 45}
 
-    cnt_c_not_displayed = 0
-    cnt_r_not_displayed = 0
     for sh in qs:
         # current
         c_reliability = sh.current_maturity * sh.current_trust
@@ -55,11 +58,11 @@ def get_reliability_cluster(value):
             else 5.25
         )
 
-        angle = angle_offsets[sh.category] + (
+        angle = angle_offset[sh.category] + (
             get_exposure_segment_id(c_exposure) * (45 / 4)
         )
 
-        vector = [c_criticality, angle, c_exposure_val, str(sh)]
+        vector = [c_criticality, add_jitter(angle, 10), c_exposure_val, str(sh)]
 
         cluser_id = get_reliability_cluster(c_reliability)
         c_data[cluser_id].append(vector)
@@ -75,11 +78,11 @@ def get_reliability_cluster(value):
             else 5.25
         )
 
-        angle = angle_offsets[sh.category] + (
+        angle = angle_offset[sh.category] + (
             get_exposure_segment_id(r_exposure) * (45 / 4)
         )
 
-        vector = [r_criticality, angle, r_exposure_val, str(sh)]
+        vector = [r_criticality, add_jitter(angle, 10), r_exposure_val, str(sh)]
 
         cluser_id = get_reliability_cluster(r_reliability)
         r_data[cluser_id].append(vector)