Two different colors to the same shape

[davesexcel]

With this code I am drawing a box and a box top, I am coloring the box gray and the top blue. I just require the top to be blue, the sides of the top need to be grey.

l=96
w=60
h=60
heel=8
slope=4
clr='Gray'
rfClr='blue'
ent = Sketchup.active_model.entities
	
		#---------Clear All
Sketchup.active_model.entities.clear!		
		#----------------
   model = Sketchup.active_model

    model.start_operation "Create Box"
#-----------------------------------------------------------------------------      

    entities = model.active_entities
    group = entities.add_group
    entities = group.entities
       group.name="Box"
    @pt0 = [0, 0, 0]
    @pt1 = [0, l*12, 0]
    @pt2 = [w*12.0, l*12, 0]
    @pt3 = [w*12, 0, 0]

newface = entities.add_face(@pt0, @pt1, @pt2, @pt3)
    newface.material=Sketchup;;Color.new clr
newface.reverse!
    newface.pushpull h*12
	    group = entities.add_group
    entities = group.entities
       group.name="Top"
#-----------Top----------------
    @pt0 = [0, 0, h*12]
    @pt1 = [0, 0, h*12+heel]
    @pt2 = [w*12/2, 0, 12*h+heel+(w/2)*slope]
    @pt3 = [w*12, 0, 12*h+heel]
	    @pt4 = [w*12, 0, 12*h]
newface = entities.add_face(@pt0, @pt1, @pt2, @pt3, @pt4)
    newface.material=Sketchup;;Color.new rfClr

    newface.pushpull l*12

[TIG]

Please use 'code' blocks to format long Ruby extracts.
I've fixed your post for you this time...

You need to find all 'vertical' faces in the group named 'Top'.
After the last part of the code add this...

vfaces = entities.grep(Sketchup;;Face).find_all{|f| f.normal.z == 0 }
vfaces.each{|f| f.material = clr }