skip datapoints that are to close

vis3d/unity/Assets/DataPointVisualize.cs

@@ -14,6 +14,7 @@ public class DataPointVisualize : MonoBehaviour
   public TextAsset data;
   public GameObject dataPathPrefab;
   public int dataLimit = 1000;
+  public float minDistance = 0.01f;
 
   ILocationProvider _locationProvider;
   ILocationProvider LocationProvider
@@ -44,17 +45,21 @@ public class DataPointVisualize : MonoBehaviour
       }
     
       //objs.Sort(Comparer<DataPath.DataPoint>.Create((l,r) => l.direction - r.direction));
-      //objs.Sort(Comparer<DataPath.DataPoint>.Create((l,r) => isign(l.timestamp - r.timestamp)));
+      objs.Sort(Comparer<DataPath.DataPoint>.Create((l,r) => isign(l.timestamp - r.timestamp)));
       //objs.Sort(Comparer<DataPath.DataPoint>.Create((l,r) => l.id.GetHashCode() - r.id.GetHashCode()));
       objs.Sort(Comparer<DataPath.DataPoint>.Create((l,r) => l.id.CompareTo(r.id)));
 
       int lastID = "".GetHashCode();
       DataPath path = null;
       int pathCount = 0;
+      double lastLat = 0;
+      double lastLon = 0;
+      int savedPoints = 0;
+      int effectivePoints = 0;
 
       for (int i = 0; i < objs.Count; i++)
       {
-        var point = objs[i];
+        DataPath.DataPoint point = objs[i];
 
         if(lastID != point.id.GetHashCode()) {
 
@@ -77,14 +82,24 @@ public class DataPointVisualize : MonoBehaviour
           pathCount++;
         }
 
-        path.points.Add(point);
+        if (Math.Abs(lastLat - point.lat) > minDistance && Math.Abs(lastLon - point.lon) > minDistance)
+        {
+          path.points.Add(point);
+          lastLat = point.lat;
+          lastLon = point.lon;
+          ++effectivePoints;
+        }
+        else {
+          ++savedPoints;
+        }
       }
 
       path.Setup();
 
       Debug.Log("dataPath count = " + GameObject.FindObjectsOfType<DataPath>().Length);
+      Debug.Log("saved points     = " + savedPoints);
+      Debug.Log("effective points = " + effectivePoints);
     };
-    
   }
 
   private int isign(long s)