구글스케치업에서 루비를 만드려는 루비 입문자입니다

루비는 워낙 입문자에겐 자료가 적어 힘드네요

코드 올립니다(매우 짧으니 귀찮더라도 봐주세요 ㅠㅠ)

class MakeboxTool
  def self.makebox

#======================↓정상작동하는 부분↓==============================
    model = Sketchup.active_model
    entities = model.active_entities
    selection = model.selection
    faces = selection.grep(Sketchup::Face)
    faces.each{|face|
      group = entities.add_group(face)
      group2 = group.copy
      group.explode
      entities2 = group2.entities
      before = entities2.grep(Sketchup::Face)
      before[0].material = [50, 255, 255]
      before[0].pushpull( 10.mm )
      new_faces = entities2.grep(Sketchup::Face) - before
      upper_face = new_faces.find {|f| f.normal == before[0].normal.reverse }
      unless upper_face.nil?
        start_point = upper_face.bounds.center
        offset_vector = upper_face.normal
        offset_vector.length = 90.mm
        end_point = start_point.offset(offset_vector)
      end
      edge = group2.entities.add_line(start_point, end_point)
      layer = Sketchup.active_model.layers.add("win")
      group2.layer = layer
      entities2.each{|e| e.layer = layer }

      if !model.active_path.nil?
        instance = model.active_path.last
        definition = instance.definition
        group2_copy = group2.parent.parent.parent.entities.add_instance(group2.definition,group2.transformation)
        group2.erase!
      end

      }


  end # of makebox class
end
#==================↑ 정상작동하는 부분↑ =========================


if( not file_loaded?("makebox.rb") )
    UI.menu("Plugins").add_item("Start makebox Tool") { Sketchup.active_model.select_tool MakeboxTool.new }
    dir = Sketchup.find_support_file("Plugins")
    cmd = UI::Command.new("Start makebox Tool") { Sketchup.active_model.select_tool MakeboxTool.new }
    cmd.large_icon = cmd.small_icon = dir+"/makebox.png"
    cmd.status_bar_text = cmd.tooltip = "Tool for making blue boxes"
    tb = UI::Toolbar.new("makebox")
    tb.add_item cmd
    tb.show if tb.get_last_state == -1
end

file_loaded("makebox.rb")

이렇게 벽(면) 위에 창문을 만드는 간단한 makebox툴입니다

중간에 점선으로 표시해놓은 부분은 단독으로 작동은 정상적으로 되지만

아이콘이 있는 실행버튼을 만드려고

윗부분에 있는 class def 메소드와

class MakeboxTool
  def self.makebox

아래부분에 있는 이 메소드를 추가시키면 실행해도 아무 반응이 없습니다

if( not file_loaded?("makebox.rb") )
    UI.menu("Plugins").add_item("Start makebox Tool") { Sketchup.active_model.select_tool MakeboxTool.new }
    dir = Sketchup.find_support_file("Plugins")
    cmd = UI::Command.new("Start makebox Tool") { Sketchup.active_model.select_tool MakeboxTool.new }
    cmd.large_icon = cmd.small_icon = dir+"/makebox.png"
    cmd.status_bar_text = cmd.tooltip = "Tool for making blue boxes"
    tb = UI::Toolbar.new("makebox")
    tb.add_item cmd
    tb.show if tb.get_last_state == -1
end

file_loaded("makebox.rb")

다시 한 번 말씀드리면

정상작동하는 코드에 아이콘이 있는 실행버튼을 만드려고

위아래에 코드를 추가하였더니 실행이 먹통입니다.(오류메세지는 없음)

받았던 해결답변인데 이해는 안갑니다....

There are two major things wrong with your code.

First, your MakeboxTool class has only loose class-scope code, no methods (def’s) at all, not even initialize. So, the code is run as the file loads, but thereafter is dead. Creating an instance via MakeboxTool.new does not cause the class-scope code to run again, so your menu item and toolbar button just create dead objects.

You could convert the class into a one-shot by wrapping the loose code in def initialize…end. initialize is the method run to initialize an object created by new.

But, that takes us into the second major issue: your code does not implement any of the methods of the Tool protocol 2. It does not really qualify as a thing that should be activated using select_tool. If you want a one-shot, you could create a class method (def self.methodname) and invoke it in the command’s code block instead of selecting a Tool.

도와주세요!!!!!!!!!