Code correction

hanl000

Hello.

I'm currently trying to create capsule shape with input parameter. I think the main work is almost done, but there are tiny mistakes I'm missing. Could you please look around and correct the codes?

require 'sketchup.rb'

#Creating capsule
class capsule
   @@Radius=@@Length=@@x=@@y=@@z=@@Horizontal=@@Vertical=nil#<--class variables
   def capsule
      @@Radius = 0.mm if not @@Radius
      @@Length = 0.mm if not @@Length
      @@x = 0.mm if not @@x
      @@y = 0.mm if not @@y
      @@z = 0.mm if not @@z
      @@Horizontal = 0.0 if not @@Horizontal
      @@Vertical = 0.0 if not @@Vertical
      prompts = ["Radius", "Length", "x", "y", "z", "Horizontal angle", "Vertical angle"]
      values = [@@Radius, @@Length, @@x, @@y, @@z, @@Horizontal, @@Vertical]
      results = inputbox prompts, values, "capsule"
      if results
         @@Radius, @@Length, @@x, @@y, @@z, @@Horizontal, @@Vertical = results
         model = Sketchup.active_model
         model.start_operation "capsule"
         compdef = Sketchup.active_model.definitions.add
         ents = compdef.entities
         #-----------------------------------------------------------------------------
         
         @Radius = @@Radius.mm
         @Length = @@Length.mm
         @Horizontal= @@Horizontal.degrees
         @Vertical= @@Vertical.degrees
 
     #right         
     center = Geom;;Point3d.new @Length,0,0 #Length of capsule
     normal = Geom;;Vector3d.new 0,0,1
     xaxis = Geom;;Vector3d.new 1,0,0
     right_start = Math;;PI/-2
     right_end = Math;;PI/2
     edgearray = entities.add_arc center, xaxis, normal, @Radius, right_start, right_end
     edge = edgearray[0]
     arccurve = edge.curve
     verts = arccurve.vertices


     #left
     center = Geom;;Point3d.new 0,0,0
     normal = Geom;;Vector3d.new 0,0,1
     xaxis = Geom;;Vector3d.new 0,1,0
     left_start = 0.0
     left_end = Math;;PI
     edgearray = entities.add_arc center, xaxis, normal, @Radius, left_start, left_end 
     edge = edgearray[0]
     arccurve = edge.curve
     verts += arccurve.vertices
     
     
     face = entities.add_face verts
     path = entities.add_circle [@Radius,0,0], [1,0,0], @Radius

     face.followme path
     ents.erase_entities path
     
     group = ents.add_group ents.to_a

    pos = Geom;;Transformation.new([@@x.to_i, @@y.to_i, @@z.to_i])
    vert = Geom;;Transformation.rotation [@@x.to_i, @@y.to_i, @@z.to_i], [0, -1, 0], @Vertical
    horz = Geom;;Transformation.rotation [@@x.to_i, @@y.to_i, @@z.to_i], [0, 0, 1], @Horizontal

    group.transform! (pos)
    group.transform! (vert)
    group.transform! (horz)

    Sketchup.active_model.active_entities.add_instance(compdef, pos, vert, horz)
    
      model.commit_operation
      end
      Sketchup.send_action 'selectSelectionTool;'#<--
   end#def

end#Class


    if( not file_loaded?(__FILE__) )

      UI.add_context_menu_handler do |menu|
     
      end
     
      dir=File.dirname(__FILE__)
         cmd_array = []      

   # Create the Command object
   cmd = UI;;Command.new("capsule") {Sketchup.active_model.select_tool capsule.new.capsule}
   # Configure the Command's appearance
   cmd.small_icon = cmd.large_icon = dir+"/FGmanual/images/Capsule.png"#<--
   cmd.tooltip = "capsule"
   cmd_array.push(cmd)
           

       tb=UI;;Toolbar.new("Creating tools")
       cmd_array.each {|i| tb.add_item(i)}
          tb.show if tb.get_last_state == -1
    end
    file_loaded(__FILE__)

slbaumgartner

Please be more explicit about what makes you think there are "tiny mistakes". I can see various flaws (e.g. a class name should start with a capital letter, also consult Dan Rathbun's frequent posts about proper usage of modules to control namespaces) but I'd rather help you with a specific problem than to write your code for you.

sdmitch

As pointed out by slbaumgartner, class names must be capitalized.

Due to Sketchup's trouble with small things, I would multiply @Radius and @Length by 1000 and scale by 0.001 after the capsule is created.

scl=Geom;;Transformation.scaling(ORIGIN,0.001)
ents.transform_entities(scl,ents.to_a)

edgearray = ents.add_arc and face = ents.add_face so they are inside compdef

Since everything is in compdef, group is not needed.

The horz and vert transformations should also use ORIGIN for the point.

The add_instance requires a definition and a transformation. Since there are three transformations needed, they can be combined, ie

Sketchup.active_model.active_entities.add_instance(compdef,pos*horz*vert)

Dan Rathbun

Do NOT put spaces between method names and parameter lists:

group.transform! (pos)
should be:
group.transform!(pos)

Read up on how to define a class, including use of the built-in initialize method, that automatically gets called by the new constructor.

hanl000

Thank you for giving me advices. The problem has been partly fixed by myself. Maybe, I have to pay attention to studying ruby more