Color the component according to dynamic component attribute

[blue_orchid]

I am new in ruby programming, and I was trying to execute following code in skectchup but it's not working.

UI.menu("Plugins").add_item('paint Red') {
  model = Sketchup.active_model
  entities = model.entities.to_a
  attr = []
    if e.get_attribute('dynamic_attributes','condition','')=="1"
    attr << e
    end
  entities_def = entities.definition
  
  entities_def.set_attribute 'dynamic_attributes',
    'material', 'red'
  entities_def.set_attribute 'dynamic_attributes',
    '_material_formula', '"red"'
   
  dcs = $dc_observers.get_latest_class
  dcs.redraw_with_undo(entities)
}

What I was trying to do is -
I have many components in sketchup model. All those components have dynamic attributes 'material' and 'condition'. I was trying to assign material color "red" to all the component with attribute condition = 1.

I took help to write above code from following link:
http://forums.sketchucation.com/viewtopic.php?f=180&t=24241&p=331242&hilit=select+object+as+per+attribute#p331242

[Jim]

This could be done using features which are already available in Dynamic Components.

Try adding the built-in Material attribute, and use a formula similar to the following:

Material: =if(condition = 1, "Red", "Default" )

I realize there may be a good reason to use an extra Ruby script to accomplish this, but I thought I'd point this out since it's fairly simple to do.

(The use of "Default" as a material name causes an error in the formula, but has the effect of removing any applied material. I don't see how to remove materials in a DC.)

[blue_orchid]

I don't know how to execute
@unknownuser said:

Material: =if(condition = 1, "Red", "Default" )
.

I have edited the previous code and still is not working..

UI.menu("Plugins").add_item('painting Red') {
  model = Sketchup.active_model
  entities = model.entities.to_a
  entities_def = entities.definition
  
  condition_1 = []
  entities.each{|e|    
    if e.get_attribute('dynamic_attributes','condition','')=="1"
    condition_1 << e
    end
    }
  entities_def.set_attribute 'dynamic_attributes',
    'material', 'red'
  entities_def.set_attribute 'dynamic_attributes',
    '_material_formula', '"red"'
   
  dcs = $dc_observers.get_latest_class
  dcs.redraw_with_undo(entities)

}

here shortcut references are:
%(#FF0000)[model = Sketchup.active_model
entities = model.entities.to_a
entities_def = entities.definition]

I tried to select all the components with dynamic reference 'condition =1" in following code:
condition_1 = [
entities.each{|e|
if e.get_attribute('dynamic_attributes','condition','')=="1"
condition_1 << e
end
}]

And, for the above selection, I tried to change the material (of dynamic reference) into red color in following code:
%(#FF0000)[entities_def.set_attribute 'dynamic_attributes',
'material', 'red'
entities_def.set_attribute 'dynamic_attributes',
'_material_formula', '"red"']

Actually, I don't know what the codes

dcs = $dc_observers.get_latest_class
dcs.redraw_with_undo(entities)

means, but I copied that code form the base file I used from the following code:

UI.menu("Plugins").add_item('Make Sang Red') {

  # Assumes that sang is the 1st entity in model.
  sang = Sketchup.active_model.entities[0]
  sang_def = sang.definition

  # Override sang's shirt color to red. ("material"
  # is a special attribute that requires
  # you to set a formula to "take control" 
  # over the default material the user has painted.)
  sang_def.set_attribute 'dynamic_attributes',
    'material', 'red'
  sang_def.set_attribute 'dynamic_attributes',
    '_material_formula', '"red"'

  # Add a new configurable option to Sang.
  # (Any attribute that starts with an underscore
  # is a "meta attribute" that describes behavior.)
  sang_def.set_attribute 'dynamic_attributes',
    'weight', '145'
  sang_def.set_attribute 'dynamic_attributes',
    '_weight_label', 'weight'
  sang_def.set_attribute 'dynamic_attributes',
    '_weight_formlabel', 'My Weight'
  sang_def.set_attribute 'dynamic_attributes',
    '_weight_units', 'STRING'
  sang_def.set_attribute 'dynamic_attributes',
    '_weight_access', 'TEXTBOX'

  # Change the description that shows
  # up in the configure box with a custom
  # formula.
  sang_def.set_attribute 'dynamic_attributes',
    '_description_formula', 
    '"Sang is now red and weighs " & weight'

  # There is a global handle into the plugin that
  # allows you to make the same calls that the
  # plugin does, like so...
  dcs = $dc_observers.get_latest_class
  dcs.redraw_with_undo(sang)

}

Thank you.

[Jim]

I assumed you were usung SketchUp Pro. Try this:

UI.menu("Plugins").add_item('painting Red') { BlueOrchid.paint_red }

module BlueOrchid
    def self.paint_red
        Sketchup.active_model.entities.to_a.each{|e|    
            if e.get_attribute('dynamic_attributes','condition','')=="1"
                e.definition.set_attribute 'dynamic_attributes', 'material', 'red'
                e.definition.set_attribute 'dynamic_attributes', '_material_formula', '"red"'
                $dc_observers.get_latest_class.redraw_with_undo(e)
            end
        }
    end
end

[blue_orchid]

thanks a lot. it worked. You saved my day...

How do u guys learn ruby for sketchup? What are the basic requirements (computer knowledge) to start ruby?
I wish i could learn efficiently and quickly.

Thanks again.