Create a Dynamic component and define dimensions

[pric69]

hello,
Can some one help me…The goal of the code below was to change a component to a dynamic one adding lenx, leny and lenz attributes. And force values to 100, 200 and 300

  #Change a component to dynamic component
def crdc
   model = Sketchup.active_model
    selection = model.selection

    if selection.empty? or selection.length > 1.0
			
		UI.messagebox ("Select one entity")

		else
		ents=selection[0]  
		
		compo=ents.definition  #component definition
		
		#add attributs
		compo.set_attribute("dynamic_attributes","lenx", "100.0")		
		compo.set_attribute("dynamic_attributes","leny", "200.0")	
		compo.set_attribute("dynamic_attributes","lenz", "300.0")	
		
		#attribus labels
		compo.set_attribute("dynamic_attributes","_lenx_label", "L")
		compo.set_attribute("dynamic_attributes","_leny_label", "P")
		compo.set_attribute("dynamic_attributes","_lenz_label", "H")
		
		#attributs format
		compo.set_attribute("dynamic_attributes" , "_lenx_access", "TEXTBOX")
		compo.set_attribute("dynamic_attributes" , "_leny_access", "TEXTBOX")
		compo.set_attribute("dynamic_attributes" , "_lenz_access", "TEXTBOX")
		
		#regen
		$dc_observers.get_latest_class.redraw_with_undo(ents) 
		end	
end

The component is a cube 1000mm x 1000mm x 1000mm

This code is ok to transform the component into dynamic one. But the dimension are not changed, still 1000mm x 1000mm x 1000m.

However we can see with “Attribute Helper” that values have been changed !!!

is this a regen issue ? Or else…

Thanks in advance

BR

[DanRathbun]

@pric69

The goal of the code below was to change a component to a dynamic one adding lenx, leny and lenz attributes.

You cannot directly set the 'lenx', 'leny' and 'lenz' attributes.

You must create your own custom attributes, and then set a formula for the above attributes that points at your custom attributes.

Also to have your attributes appear in non-alpha order you need to use prefixes that will collate in the order that you wish.

# Change a component to dynamic component
def crdc
  model = Sketchup.active_model
  selection = model.selection
  return if selection.empty?

  dict = 'dynamic_attributes'
  inst = selection[0]  
  compo = inst.definition  #component definition

  compo.set_attribute(dict,'_name', 'Cuboid')
  compo.set_attribute(dict,'_formatversion','1')
  compo.set_attribute(dict,'_lengthunits','CENTIMETERS')
  
  #add attributs
  compo.set_attribute(dict,'d1l', '100')
  compo.set_attribute(dict,'d2p', '100')
  compo.set_attribute(dict,'d3h', '100')

  compo.set_attribute(dict,'_lenx_formula', 'd1l')
  compo.set_attribute(dict,'_leny_formula', 'd2p')
  compo.set_attribute(dict,'_lenz_formula', 'd3h')
  
  #attribus labels
  compo.set_attribute(dict,'_d1l_label', 'L')
  compo.set_attribute(dict,'_d2p_label', 'P')
  compo.set_attribute(dict,'_d3h_label', 'H')
  
  #attributs format
  compo.set_attribute(dict , '_d1l_access', 'TEXTBOX')
  compo.set_attribute(dict , '_d2p_access', 'TEXTBOX')
  compo.set_attribute(dict , '_d3h_access', 'TEXTBOX')
  
  #regen
  $dc_observers.get_latest_class.redraw_with_undo(inst) 
 
end

…

@pric69

And force values to 100, 200 and 300

Instances dictionaries will not have the size attributes IF they are the same as the definition, but if the instance will be a different size, then you must make the size changes to the instance’s "dynamic_attributes" dictionary.

Then for a method that takes 3 sizes in inches, but expressed as cm like:

xyz( 100.cm, 200.cm, 300.cm )

… the xyz() method:

def xyz(x,y,z)
  model = Sketchup.active_model
  selection = model.selection
  return if selection.empty?

  dict = 'dynamic_attributes'
  inst = selection[0] # the instance
  compo = inst.definition  # component definition

  for key in ['_name','_formatversion','_lengthunits']
    inst.set_attribute(dict, key, compo.get_attribute(dict,key))    
  end

  units = compo.get_attribute(dict,'_lengthunits')
  keys = ['d1l','d2p','d3h']

  for key in keys
    arg = [x,y,z][keys.index(key)]
    #add attributs
    if units == "CENTIMETERS"
      inst_val = arg.to_cm.round(3).to_s
    else
      inst_val = arg.round(3).to_s
    end
    comp_val = compo.get_attribute(dict,key)
    prev_val = inst.get_attribute(dict,key)
    if ( prev_val.nil? && inst_val != comp_val ) || prev_val != inst_val
      inst.set_attribute(dict, key, inst_val)
    end
  end
  
  #regen
  $dc_observers.get_latest_class.redraw_with_undo(inst) 

end

[pric69]

Thanks so much Dan,

It’s OK now

Best regards

Patrick