node-map.rb

class Node

    attr_reader :ins, :name, :path

    def initialize(ins, path, name)
        @ins = ins
        @path = path
        @name = name
    end

    # Model Transformation
    def wtransformation
        tr = Geom::Transformation.new
        path().each {|e| tr *= e.transformation}
        tr *= @ins.transformation
        tr
    end

    # Model Position
    def worigin
        wtransformation().origin
    end

end

def dig(entities, data = [], path = [])
    entities.grep(Sketchup::Group).each do |g|
        n = Node.new(g, path.clone, g.name)
        data << n
        path << g
        dig(g.entities, data, path)
        path.pop
    end
    entities.grep(Sketchup::ComponentInstance).each do |i|
        n = Node.new(i, path.clone, i.definition.name)
        data << n
        path << i
        dig(i.definition.entities, data, path)
        path.pop
    end
    data
end


def node_map
    model = Sketchup.active_model
    entities = model.entities
    $data = dig(entities)
    p $data.count
end

def label_map
    $data.each_with_index do |node, i|
        p node
        o = node.worigin
        entities.add_text(i.to_s, o)
    end
end