Remove layer doesn't work?!

[sdafasdf]

hi

sorry if this is a simple query, but it has me stuck.

I've added a layer to my model with

Sketchup.active_model.layers.add("test")

which works fine. The API reference says this should remove it,

Sketchup.active_model.layers.remove("test", true)

but it errors

Error; #<NoMethodError; undefined method `remove' for #<Sketchup;;Layers;0xc8649c4>>
(eval);81

anyone got any bright ideas?!

thanks
bob

[Jim]

Layers.remove is new in SketchUp 2015.
The API docs show the version of SketchUp methods were introduced.

Prior to version 15, you need to do it using Layers.purge_unused after moving or deleting any geometry on that Layer.

TIG posted some code here: http://sketchucation.com/forums/viewtopic.php?p=166985#p166985

[sdafasdf]

thanks Jim, I hadn't spotted the 2015+ in the docs

I have (hopefully) one more layer question. Is it possible to set the layer opacity and then turn on "color by layer"?

thanks again

[Jim]

For Color by Layer, see the Rendering Options[1]

Sketchup.active_model.rendering_options['DisplayColorByLayer'] = true

I do not think the transparency can be set from Ruby.

[1] http://www.sketchup.com/intl/en/developer/docs/ourdoc/renderingoptions

[TIG]

Jim is correct.
If, via Ruby, you give a layer a color with transparency it is ignored and it renders opaque.
Sp currently you can only change a layer's color through the API - there is no alpha OR texture support within the API, although of course you can do both of those manually...