Vectrosity Radar Issue

[System.Serializable]
public class RadarDotPoints {
//	public float dotSize;
	public Color dotColor;
	public VectorPoints radarDots;
//	[HideInInspector]
	public Vector2[] dotPoints;
}

public class UIController : MonoBehaviour {
	public RadarDotPoints stationDot;
	public RadarDotPoints targetDot;
	public RadarDotPoints obstacleDots;
	public RadarDotPoints enemyDots;
	public int numberOfRadarDots;

	void Awake () {
		stationDot.dotPoints = new Vector2[1];
		targetDot.dotPoints = new Vector2[1];
		obstacleDots.dotPoints = new Vector2[numberOfRadarDots];
		enemyDots.dotPoints = new Vector2[numberOfRadarDots];
	}

	void Start () {
		stationDot.radarDots = new VectorPoints ("stationDot", stationDot.dotPoints, stationDot.dotColor, null, radarDotSize * 2);
		targetDot.radarDots = new VectorPoints ("targetDot", targetDot.dotPoints, targetDot.dotColor, null, radarDotSize * 2);
		obstacleDots.radarDots = new VectorPoints ("obstacleDots", obstacleDots.dotPoints, obstacleDots.dotColor, null, radarDotSize);
		enemyDots.radarDots = new VectorPoints ("enemyDots", enemyDots.dotPoints, enemyDots.dotColor, null, radarDotSize);
		StartCoroutine (RadarScan ());
	}

	IEnumerator RadarScan () {
		while (scanning) {
			//	Draw Station Dot
			stationDot.dotPoints[0] = SetRadarPosition (stationTransform);
			Vector.DrawPoints(stationDot.radarDots);

			//	Draw Current Target Dot
			if (currentTarget) {
				targetDot.dotPoints[0] = SetRadarPosition (currentTarget);
			} else {
				targetDot.dotPoints[0] = new Vector2 (-100, -100);
			}
			Vector.DrawPoints(targetDot.radarDots);

			//	Draw Obstacle Dots
			for (int i = 0; i < obstacleDots.dotPoints.Length; i++) {
				obstacleDots.dotPoints[i] = new Vector2 (-100, -100);
			}
			for (int j = 0; j < obstacleObjects.Count; j++) {
				obstacleDots.dotPoints[j] = SetRadarPosition (obstacleObjects[j]);
			}
			Vector.DrawPoints(obstacleDots.radarDots);

			//	Draw Enemy Dots
			for (int k = 0; k < enemyDots.dotPoints.Length; k++) {
				enemyDots.dotPoints[k] = new Vector2 (-100, -100);
			}
			for (int l = 0; l < enemyObjects.Count; l++) {
				enemyDots.dotPoints[l] = SetRadarPosition (enemyObjects[l]);
			}
			Vector.DrawPoints(enemyDots.radarDots);

			//	Scan every frame - change this for performance reasons
			yield return null;
		}
	}
}