QuadIterator(QuadCurve2D q,
    AffineTransform at) 
{
        this.quad = q;
        this.affine = at;
}

 public int currentSegment(float[] coords) 
{
        if (isDone()) {
            throw new NoSuchElementException("quad iterator iterator out of bounds");
        }
        int type;
        if (index == 0) {
            coords[0] = (float) quad.getX1();
            coords[1] = (float) quad.getY1();
            type = SEG_MOVETO;
        } else {
            coords[0] = (float) quad.getCtrlX();
            coords[1] = (float) quad.getCtrlY();
            coords[2] = (float) quad.getX2();
            coords[3] = (float) quad.getY2();
            type = SEG_QUADTO;
        }
        if (affine != null) {
            affine.transform(coords, 0, coords, 0, index == 0 ? 1 : 2);
        }
        return type;
}

Returns the coordinates and type of the current path segment in the iteration. The return value is the path segment type: SEG_MOVETO, SEG_LINETO, SEG_QUADTO, SEG_CUBICTO, or SEG_CLOSE. A float array of length 6 must be passed in and may be used to store the coordinates of the point(s). Each point is stored as a pair of float x,y coordinates. SEG_MOVETO and SEG_LINETO types will return one point, SEG_QUADTO will return two points, SEG_CUBICTO will return 3 points and SEG_CLOSE will not return any points.

 public int currentSegment(double[] coords) 
{
        if (isDone()) {
            throw new NoSuchElementException("quad iterator iterator out of bounds");
        }
        int type;
        if (index == 0) {
            coords[0] = quad.getX1();
            coords[1] = quad.getY1();
            type = SEG_MOVETO;
        } else {
            coords[0] = quad.getCtrlX();
            coords[1] = quad.getCtrlY();
            coords[2] = quad.getX2();
            coords[3] = quad.getY2();
            type = SEG_QUADTO;
        }
        if (affine != null) {
            affine.transform(coords, 0, coords, 0, index == 0 ? 1 : 2);
        }
        return type;
}

Returns the coordinates and type of the current path segment in the iteration. The return value is the path segment type: SEG_MOVETO, SEG_LINETO, SEG_QUADTO, SEG_CUBICTO, or SEG_CLOSE. A double array of length 6 must be passed in and may be used to store the coordinates of the point(s). Each point is stored as a pair of double x,y coordinates. SEG_MOVETO and SEG_LINETO types will return one point, SEG_QUADTO will return two points, SEG_CUBICTO will return 3 points and SEG_CLOSE will not return any points.

 public int getWindingRule() 
{
        return WIND_NON_ZERO;
}

Return the winding rule for determining the insideness of the path.

 public boolean isDone() 
{
        return (index  > 1);
}

Tests if there are more points to read.

 public  void next() 
{
        index++;
}

Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction.