Attempting to Merge Shapes Created by two rodFillWithRects

Hi, 

    I'm creating a polygon and filling it with rectangular shapes that are intersecting with each other. I'd like to merge the shapes created by the rodFillWithRects() function. I'm essentially filling an octagon with intersecting rectangles and would like to merge the rectangles to create a series of larger rectangles. Is it possible to use dbLayerOr() to accomplish this? The code snippet is pasted below and I've also pasted images of what I'd like the end layout to look like:

; the code that follows creates the mesh patterns for the slots
mesh_outside_silox = 1.0
radius = 0.5*w - sil_inset - mesh_outside_silox
D = radius/sqrt(2)
d = 2*D - radius
p9 = list(x+radius y+d)
p10 = list(x+d y+radius)
p11 = list(x-d y+radius)
p12 = list(x-radius y+d)
p13 = list(x-radius y-d)
p14 = list(x-d y-radius)
p15 = list(x+d y-radius)
p16 = list(x+radius y-d)

; outer polygon that forms the template for the waffle pattern
poly3 = rodCreatePolygon(
?layer SLOT
?pts list( p9 p10 p11 p12 p13 p14 p15 p16)
)

slots_2 = rodFillWithRects(
?shapeId poly3~>dbId
?fillShapeLPP SLOT
?fillShapeWidth sq_x
?fillShapeLength sq_y
?justification "centerCenter"
?spaceX grid
?spaceY sp_y
?enclosureX 0.01
?enclosureY 0.01
?grid grid
)

slots_3 = rodFillWithRects(
?shapeId poly3~>dbId
?fillShapeLPP SLOT
?fillShapeWidth sq_x+0.01
?fillShapeLength sq_y
?justification "centerCenter"
?spaceX grid
?spaceY sp_y
?enclosureX 0.01
?enclosureY 0.01
?grid grid
)
dbLayerOr(cvId SLOT list(slots_1~>dbId) list(slots_2~>dbId))

                                NOW                                                                    DESIRED RESULT