public static IEnumerable <VertexData> GetVertexIter(this Curve4Div curve)
{
ArrayList <Vector2> m_points = curve.GetInternalPoints();
VertexData vertexData = new VertexData();
vertexData.command = VertexCmd.MoveTo;
vertexData.position = m_points[0];
yield return(vertexData);
vertexData.command = VertexCmd.LineTo;
for (int i = 1; i < m_points.Count; i++)
{
vertexData.position = m_points[i];
yield return(vertexData);
}
vertexData.command = VertexCmd.NoMore;
vertexData.position = new Vector2();
yield return(vertexData);
}