Class: Sketchup::Selection

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb

Overview

A set of the currently selected entities. Use the Model.selection method to get a Selection object. Note that the order of entities (selection[0], selection[1] and so on) in the set is in no particular order and should not be assumed to be in the same order as the user selected the entities.

Examples:

# Get a handle to the selection set.
model = Sketchup.active_model
selection = model.selection

Version:

  • SketchUp 6.0

Instance Method Summary collapse

Instance Method Details

#[](index) ⇒ Sketchup::Entity?

The #[] method is used to retrieve an Entity from the selection by index. Index 0 is the first entity in the selection.

This method is not very efficient. If you need to look at every entity in the selection, consider using #each instead of using this method to manually grab each one.

Examples:

model = Sketchup.active_model
entities = model.active_entities
selection = model.selection
selection.add(entities.to_a)
p selection[0]

Parameters:

  • index (Integer) —

    The index of the Entity object to retrieve.

Returns:

See Also:

Version:

  • SketchUp 6.0



46
47
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 46

def [](index)
end

#add(entities) ⇒ Integer #add(*entities) ⇒ Integer

The add method is used to add entities to the selection. Entities that are added to the Selection are visually indicated by the selection bounding box.

You can pass it individual Entities or an Array of Entities: Note that the add, remove, and toggle methods are all aliases for one another. So if you call remove on an entity that is not selected, it will be toggled to be selected, not removed! Be cautious when writing your code to not make the assumption about the currently selected state of a given entity.

Examples:

# Add by listing the entities...
ss.add(e1, e2, e3)

# ...or add by passing an Array of entities.
ss.add([e1, e2, e3])
entities = model.active_entities
entity = entities[0]
status = selection.add entity

Overloads:

Returns:

  • (Integer) —

    the number of Entity objects added

Version:

  • SketchUp 6.0



81
82
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 81

def add(*args)
end

#add_observer(observer) ⇒ Boolean

The add_observer method is used to add an observer to the selection object.

Examples:

selection = Sketchup.active_model.selection
status = selection.add_observer observer

Parameters:

  • observer (Object) —

    An observer.

Returns:

  • (Boolean) —

    true if successful, false if unsuccessful.

Version:

  • SketchUp 6.0



96
97
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 96

def add_observer(observer)
end

#at(index) ⇒ Sketchup::Entity?

The #at method is an alias for #[].

Examples:

model = Sketchup.active_model
entities = model.active_entities
selection = model.selection
selection.add(entities.to_a)
p selection.at(0)

Parameters:

  • index (Integer) —

    The index of the Entity object to retrieve.

Returns:

See Also:

Version:

  • SketchUp 6.0



116
117
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 116

def at(index)
end

#clear ⇒ nil

The clear method is used to clear the selection.

Examples:

entity = entities[0]
selection.add entity
UI.messagebox "Ready to Clear"
selection.clear

Returns:

  • (nil)

Version:

  • SketchUp 6.0



130
131
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 130

def clear
end

#contains?(entity) ⇒ Boolean

The #contains? method is and alias of #include?.

Examples:

model = Sketchup.active_model
entity = model.active_entities.first
selection = model.selection
selection.add(entity)
p selection.contains?(entity)

Parameters:

Returns:

  • (Boolean)

See Also:

Version:

  • SketchUp 6.0



149
150
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 149

def contains?(entity)
end

#count ⇒ Integer

Note:

Since SketchUp 2014 the count method is inherited from Ruby’s Enumerable mix-in module. Prior to that the #count method is an alias for #length.

Examples:

selection = Sketchup.active_model.selection
number = selection.count

Returns:

  • (Integer)

See Also:

Version:

  • SketchUp 6.0



166
167
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 166

def count
end

#each {|entity| ... } ⇒ nil

Note:

Don’t remove content from this collection while iterating over it with #each. This would change the size of the collection and cause elemnts to be skipped as the indices change. Instead copy the current collection to an array using to_a and then use each on the array, when removing content.

The #each method is used to iterate through all of the selected entities.

If you want to do something with all of the selected Entities, this is more efficient than using #[].

Examples:

selection.each { |entity| puts entity }

Yield Parameters:

Returns:

  • (nil)

Version:

  • SketchUp 6.0



187
188
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 187

def each
end

#empty? ⇒ Boolean

The empty? method is used to determine if there are entities in the selection.

Examples:

status = selection.add entity
status = selection.empty

Returns:

  • (Boolean)

Version:

  • SketchUp 6.0



200
201
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 200

def empty?
end

#first ⇒ Sketchup::Entity

The first method is used to retrieve the first selected entity

Returns nil if nothing is selected. This method is useful when you know that only a single entity is selected, or you are only interested in the first selected entity.

Examples:

status = selection.add entity
entity = selection.first

Returns:

Version:

  • SketchUp 6.0



216
217
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 216

def first
end

#include?(entity) ⇒ Boolean

The #include? method is used to determine if a given Entity is in the selection.

Examples:

model = Sketchup.active_model
entity = model.active_entities.first
selection = model.selection
selection.add(entity)
p selection.include?(entity)

Parameters:

Returns:

  • (Boolean)

See Also:

Version:

  • SketchUp 6.0



236
237
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 236

def include?(entity)
end

#invert ⇒ nil

The #invert method is used to invert the selection.

Examples:

model = Sketchup.active_model
entities = model.active_entities
selection = model.selection
# Create a cube
face = entities.add_face([0, 0, 0], [9, 0, 0], [9, 9, 0], [0, 9, 0])
face.pushpull(-9)
# Add the first two faces to the selection
faces = entities.grep(Sketchup::Face).take(2)
selection.add(faces)
# Invert selection
selection.invert

Returns:

  • (nil)

Version:

  • SketchUp 2019.2



257
258
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 257

def invert
end

#is_curve? ⇒ Boolean

The is_curve? method is used to determine if the selection contains all edges that belong to a single curve.

Examples:

selection.add entity
status = selection.is_curve?

Returns:

  • (Boolean)

Version:

  • SketchUp 6.0



270
271
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 270

def is_curve?
end

#is_surface? ⇒ Boolean

The is_surface? method is used to determine if the selection contains only all of the faces that are part of a single curved surface.

Examples:

selection.add entity
status = selection.is_surface

Returns:

  • (Boolean)

Version:

  • SketchUp 6.0



283
284
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 283

def is_surface?
end

#length ⇒ Integer

The #length method is used to retrieve the number of selected entities.

Examples:

selection = Sketchup.active_model.selection
number = selection.length

Returns:

  • (Integer)

See Also:

Version:

  • SketchUp 6.0



299
300
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 299

def length
end

#model ⇒ Sketchup::Model

The model method retrieves the model for the selection.

Examples:

model = selection.model

Returns:

  • (Sketchup::Model) —

    the model that includes the selection if successful

Version:

  • SketchUp 6.0



311
312
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 311

def model
end

#nitems ⇒ Integer

The #nitems method is an alias for #length.

Examples:

selection = Sketchup.active_model.selection
number = selection.nitems

Returns:

  • (Integer)

See Also:

Version:

  • SketchUp 6.0



325
326
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 325

def nitems
end

#remove(entities) ⇒ Integer #remove(*entities) ⇒ Integer

The remove method is used to remove entities from the selection.

You can pass it individual Entities or an Array of Entities: Note that the add, remove, and toggle methods are all aliases for one another. So if you call remove on an entity that is not selected, it will be toggled to be selected, not removed! Be cautious when writing your code to not make the assumption about the currently selected state of a given entity.

Examples:

# Remove by listing the entities...
ss.remove(e1, e2, e3)

# ...or remove by passing an Array of entities.
ss.remove([e1, e2, e3])
entities = model.active_entities
entity = entities[0]
status = selection.add entity

Overloads:

Returns:

  • (Integer) —

    the number of Entity objects removed

Version:

  • SketchUp 6.0



359
360
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 359

def remove(*args)
end

#remove_observer(observer) ⇒ Boolean

The remove_observer method is used to remove an observer from the selection object.

Examples:

selection = Sketchup.active_model.selection
status = object.remove_observer observer

Parameters:

  • observer (Object) —

    An observer.

Returns:

  • (Boolean) —

    true if successful, false if unsuccessful.

Version:

  • SketchUp 6.0



375
376
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 375

def remove_observer(observer)
end

#shift ⇒ Sketchup::Entity

The shift method is used to remove the first entity from the selection and returns it.

Examples:

status = selection.add entity
UI.messagebox "Ready to remove item from selection set"
entity = selection.shift

Returns:

  • (Sketchup::Entity) —

    the first Entity object in the selection set if successful

Version:

  • SketchUp 6.0



390
391
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 390

def shift
end

#single_object? ⇒ Boolean

The single_object? method is used to determine if the selection contains a single object.

It can either be a single Entity or a group of Entities for which is_curve? or is_surface? will return true.

Examples:

status = selection.single_object

Returns:

  • (Boolean)

Version:

  • SketchUp 6.0



405
406
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 405

def single_object?
end

#size ⇒ Integer

The #size method is an alias for #length.

Examples:

selection = Sketchup.active_model.selection
number = selection.size

Returns:

  • (Integer)

See Also:

Version:

  • SketchUp 2014



419
420
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 419

def size
end

#toggle(entities) ⇒ Integer #toggle(*entities) ⇒ Integer

The toggle method is used to change whether an entity is part of the selection. Entities that are not already selected are added. Entities that are already selected are removed.

You can pass it individual Entities or an Array of Entities: Note that the add, remove, and toggle methods are all aliases for one another. So if you call remove on an entity that is not selected, it will be toggled to be selected, not removed! Be cautious when writing your code to not make the assumption about the currently selected state of a given entity.

Examples:

# Toggle by listing the entities...
ss.toggle(e1, e2, e3)

# ...or toggle by passing an Array of entities.
ss.toggle([e1, e2, e3])
entities = model.active_entities
entity = entities[0]
status = selection.add entity

Overloads:

Returns:

  • (Integer) —

    the number of Entity objects changed

Version:

  • SketchUp 6.0



455
456
 
# File 'lib/sketchup-api-stubs/stubs/Sketchup/Selection.rb', line 455

def toggle(*args)
end