Again I point you to the Learning Resources wiki lists I created …
I made a mistake in the above code sample:
return "Dynamic Component search resulted in nil." if dcs.nil?
return "No Dynamic Component Definitions found !" if dcs.empty?
… should have used defs in the conditional expression, instead of dcs, and read as …
return "Dynamic Component search resulted in nil." if defs.nil?
return "No Dynamic Component Definitions found !" if defs.empty?
I have made the correction in the code above.
Here is a slightly expanded edition … it outputs the number of changed instances and returns an array of those changed instances or nil if none were changed.
module Tenquin
extend self
def change_mat( key, valor, mat )
model = Sketchup.active_model
selection = model.selection
return "Empty Selection!" if selection.empty?
dict = "dynamic_attributes"
dcs = selection.grep(Sketchup::ComponentInstance).find_all { |dc|
dc.get_attribute(dict,key) == valor ||
dc.definition.get_attribute(dict,key) == valor
}
return "No Dynamic Component Instances found !" if dcs.empty?
puts "Instances found : #{dcs.count}"
defs = dcs.map { |dc| dc.definition }.uniq!
return "DC Definitions search resulted in nil." if defs.nil?
return "No Dynamic Component Definitions found !" if defs.empty?
puts "Definitions found : #{defs.count}"
changed = []
num = 0
defs.each { |cdef|
change = cdef.entities.grep(Sketchup::ComponentInstance)
next if change.nil? || change.empty?
change.each { |inst| inst.material = mat }
num += change.size
changed.push(*change)
}
puts "Total DC Instances material changed : #{num}"
if num > 0
puts "Returning an array of references to each changed instance."
return changed
else
return nil
end
end # change_mat
end # module Tenquin