Problem with UVHelper

[spring.freediver]

When I try to experiment with UVHelper using this code"
` require 'sketchup.rb'

def uvhelp

face=Sketchup.active_model.selection[0]

tw = Sketchup::TextureWriter.new
uvHelp = face.get_UVHelper true, true, tw
pts = []
i = 0
face.outer_loop.vertices.each do |vert|
  pts[i] = vert.position
  pts[i+1] = uvHelp.get_front_UVQ(vert.position)
  i = i+2
end
prompt = ["P1","UV1",
      "P2","UV2",
      "P3","UV3",
      "P4","UV4"]
defaults = [pts[0], pts[1], pts[2], pts[3], pts[4], pts[5], pts[6], pts[7]]
results = inputbox prompt, defaults, name

end

if( not file_loaded?("UVHelper.rb") )
UI.menu("Plugins").add_item($exStrings.GetString("UVHelper")) { uvhelp }
end
file_loaded("UVHelper.rb")`

I get this error message:
Error: #<TypeError: wrong argument type (expected Sketchup::TextureWriter)>
C:/Program Files/Google/Google SketchUp 6/Plugins/UVHelper.rb:8:in get_UVHelper' C:/Program Files/Google/Google SketchUp 6/Plugins/UVHelper.rb:8:in uvhelp'
C:/Program Files/Google/Google SketchUp 6/Plugins/UVHelper.rb:26
C:/Program Files/Google/Google SketchUp 6/Plugins/UVHelper.rb:26:in `call'

It doesn't even like the call to face.get_UVHelper, which is straight from the examples.

[thomthom]

That's odd. Typeing into the Ruby console I get the same error.
But I have used the same code in one of my own plugin and that works. I can't see what the difference might be.

[thomthom]

Ah! I see it now.

Use tw = Sketchup.create_texture_writer instead of tw = Sketchup::TextureWriter.new.

I'll add it to the list of errors in the manual: http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=17047