Sketchup hell solved

gistfile1.txt

model = Sketchup.active_model
entities = model.entities
entities.clear!

# Draw a cylinder                                                                                                                                                                                        
basegroup = entities.add_group
basegroupentities = basegroup.entities
center_point = Geom::Point3d.new(0,0,0)
normal_vector = Geom::Vector3d.new(0,0,1)
radius = 10
edgearray = basegroupentities.add_circle center_point, normal_vector, radius
first_edge = edgearray[0]
first_edge.find_faces # needed to create face between edges                                                                                                                                              
main_face = first_edge.faces.first
main_face.reverse! if main_face.normal.z < 0
main_face.pushpull 10
base_trans = basegroup.transformation

# Create the star                                                                                                                                                                                        
cutgroup = entities.add_group
cutgroupentities = cutgroup.entities
star_z = 0
pt1 = [0, 1, star_z]
pt2 = [-0.351, 0.509,  star_z]
pt3 = [-0.951, 0.309,  star_z]
pt4 = [-0.488, -0.209, star_z]
pt5 = [-0.588, -0.809, star_z]
pt6 = [ 0.0, -0.409,   star_z]
pt7 = [ 0.588, -0.809, star_z]
pt8 = [0.488, -0.209,  star_z]
pt9 = [ 0.951, 0.309,  star_z]
pt10 = [0.351, 0.509,  star_z]

# Draw the face, extrude the star                                                                                                                                                                        
base = cutgroupentities.add_face(pt1, pt2, pt3, pt4, pt5, pt6, pt7, pt8, pt9, pt10)
base.reverse! if base.normal.z < 0
base.pushpull 11
cut_trans = cutgroup.transformation

puts cutgroupentities.count
puts basegroupentities.count
cg = cutgroup.entities.to_a
bg = basegroup.entities.to_a
puts cut_trans.inspect
puts base_trans.inspect
puts cutgroupentities.count
puts basegroupentities.count
puts bg.size
puts cg.size

Sketchup.active_model.entities.intersect_with true, cut_trans, basegroup.entities, base_trans , true, bg

cutgroup.explode
basegroup.explode