Select By Layer

ezt

Here is a script for selecting items in a particular layer.

#Make sure this ruby file is loaded

("require" will load a file only if it is not loaded yet)

require "sketchup.rb" #Make sure this ruby file is loaded

def select_by_layer
# First get a list of all of the layers in the model
model = Sketchup.active_model
layers = model.layers
names = layers.collect {|l| l.name}
  # Display a dialog to pick the layer to select
  prompts = ["Layer"]
  values = [names[0]]
  enums = [names.join("|")]
  results = inputbox prompts, values, enums, "Select By Layer"
  return if not results
  
  # Now select everything on the selected layer
  layername = results[0]
  do_select {|e| e.layer.name == layername}
end

define our file name so we will know when we load it twice

filename="selectbylayer.rb"

#run this code the first time this script is loaded
#If it is loaded again, file_loaded!(filename) will return true
if !file_loaded?(filename)
# get the SketchUp plugins menu
plugins_menu = UI.menu("Plugins")
# add a seperator and our function to the "plugins" menu
if plugins_menu
plugins_menu.add_separator
plugins_menu.add_item("Select By Layer") { select_by_layer}
end
# Let Ruby know we have loaded this file
file_loaded(filename)
end

This shows the layers in the model as a drop down list and the items selected are those in the layer chosen from the drop down list.
What I would like is the layers to be shown in a list with checkboxes. The selected items would then be defined as all those in the layers where the boxes are ticked.

Is this do-able? Can anyone tell me how?

Many thanks in advance.