Drawing Sphere with ruby

[kmk111890]

Hello. I've ever downloaded a ruby creates box automatically on this site. With this ruby, I would like to develop coding to create sphere shape too. I guessed adding radius was all task but didn't work. please fix errors.

` require 'sketchup.rb'
def create_sphere

@radius = 0.feet if not @radius # along Green Y axis

prompts = ["radius", "R", "G", "B"]
values = [@radius, @R, @G, @B]
results = inputbox prompts, values, "Sphere"
return if not results
@radius, @R, @G, @B,= results

model = Sketchup.active_model
model.start_operation "Sphere"
ents = Sketchup.active_model.definition.add

center = [0, 0, 0]
radius = @radius
circle = ents.entities.add_circle center, [0, 0, 1], radius
circle_face = ents.add_face circle

path = ents.add_circle center, [0, 1, 0], radius + 1

circle_face.followme path

ents.erase_entities path

circle_face.material=Sketchup::Color.new(@R, @G, @B)
circle_face.material.alpha = 0.3

status=model.place_component(ents)
Sketchup.active_model.active_entities.add_instance(ents, trans)

model.commit_operation
end
if( not file_loaded?("Sphere.rb") )
utilities_menu = UI.menu("Plugins").add_submenu("Sphere")
utilities_menu.add_item("Sphere") { create_sphere }
end
#-----------------------------------------------------------------------------
file_loaded("Sphere.rb")`

[slbaumgartner]

See comments regarding various errors:

` require 'sketchup.rb'

def create_sphere

@radius = 0.feet if not @radius # along Green Y axis

prompts = ["radius", "R", "G", "B"]
values = [@radius, @R, @G, @B]
results = inputbox prompts, values, "Sphere"
return if not results
@radius, @R, @G, @B,= results

model = Sketchup.active_model # why keep switching between model and

Sketchup.active_model?

model.start_operation "Sphere"
compdef = Sketchup.active_model.definitions.add # needed 's'

multiple places show confusion between an Entity and its Entities collection

ents = compdef.entities

center = [0, 0, 0]
radius = @radius
circle = ents.add_circle center, [0, 0, 1], radius
circle_face = ents.add_face circle

assign these right away - the followme will destroy the original circle_face

Color.new needs integers not strings

circle_face.material=Sketchup::Color.new(@R.to_i, @G.to_i, @B.to_i)
circle_face.material.alpha = 0.3

path = ents.add_circle center, [0, 1, 0], radius + 1

circle_face.followme path

ents.erase_entities path

place_component activates the Tool to manually place a

ComponentInstance via GUI

add_instance explicitly places one via Ruby

You probably don't want to do both?

#status=model.place_component(compdef)

need to create trans before you can use it! This creates an identity,

which adds the instance at the model origin

trans=Geom::Transformation.new
Sketchup.active_model.active_entities.add_instance(compdef, trans)

model.commit_operation
end

if( not file_loaded?("Sphere.rb") )
utilities_menu = UI.menu("Plugins").add_submenu("Sphere")
utilities_menu.add_item("Sphere") { create_sphere }
end
#-----------------------------------------------------------------------------
file_loaded("Sphere.rb")`

Also, you should isolate your code in a module so that the method does not go into the global namespace.