Why is my script constructed mesh rotating the wrong way

Hi everyone

I have a script which constructs a mesh that is supposed to represent a 2d field of view similar to the soliton radar in metal gear solid. However when I rotate during gameplay it rotates the opposite direction I'd like it to. How could I fix this?

This is the code

 function DirectionForAngle(angleNumber : float, isGlobal : boolean){
 if(!isGlobal){// if local
 angleNumber -= transform.eulerAngles.z; 
 }return Vector2(Mathf.Sin(angleNumber * Mathf.Deg2Rad),Mathf.Cos(angleNumber * Mathf.Deg2Rad));
 }
 
 function DrawFieldOfViewMesh(){
 
 var stepCount : int = Mathf.RoundToInt(losViewAngle * meshResolution);
 var stepAngleSize : float = losViewAngle / stepCount;
 
 var viewPoints = List.<Vector2> (); 
 var oldViewCast : ViewCastInfo = new ViewCastInfo();
 
     for(var i : int = 0;i<= stepCount; i++){
 
     var angle : float = transform.eulerAngles.z - losViewAngle / 2 + stepAngleSize * i; // change y maybe?
     Debug.DrawLine(transform.position, transform.position + DirectionForAngle(angle,false) * losViewRadius, Color.red);
     var newViewCast : ViewCastInfo = ViewCast(angle);
         if( i > 0){
            var thresholdExceeded : boolean = Mathf.Abs (oldViewCast.dst - newViewCast.dst) > edgeDstThreshold;
            if(oldViewCast.hit!= newViewCast.hit || (oldViewCast.hit && newViewCast.hit && thresholdExceeded)){
            var edge : EdgeInfo = FindEdge(oldViewCast,newViewCast);
 
                if(edge.pointA!=Vector2.zero){
                viewPoints.Add(edge.pointA);
                }
 
                if(edge.pointB!=Vector2.zero){
                viewPoints.Add(edge.pointB);
                }
 
 
            }
 
         }
     viewPoints.Add(newViewCast.point);
     oldViewCast = newViewCast;
 
     }
 
 var vertexCount : int = viewPoints.Count + 1;
 var vertices : Vector3[] = new Vector3[vertexCount];
 var triangles = new int[((vertexCount-2) *3)];
 vertices[0] = Vector3.zero;
 
         for( i = 0;i<vertexCount-1;i++){
 
             vertices[i+1] = transform.InverseTransformPoint(viewPoints[i]);
             if(i<vertexCount-2){
             triangles[i*3] = 0;
             triangles[i*3+1] = i+1;
             triangles[i*3+2] = i+2;
             }
 
         }
 
 fovMesh.Clear();
 fovMesh.vertices = vertices;
 fovMesh.triangles = triangles;
 fovMesh.RecalculateNormals();
 fovMesh.RecalculateBounds();
 }
 

Not very good at Vector maths admittedly and I've been following from a tutorial so I only half understand what I've even written in the first place. Any and all help appreciated. Thanks in advance!