Class: DemCurves::PathElement

Inherits:
Object
  • Object
show all
Defined in:
lib/core/path-element.rb

Direct Known Subclasses

CubicBezier, Line

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(control_points) ⇒ PathElement

Returns a new instance of PathElement.



7
8
9
10
11
12
13
14
15
 
# File 'lib/core/path-element.rb', line 7

def initialize(control_points)
  @control_points = control_points
  @control_points.each_value do |control_point| 
    control_point.add_path_element self
  end
  
  @path_points = []
  generate
end

Instance Attribute Details

#control_points ⇒ Object (readonly)

Do not directly instantiate this class



6
7
8
 
# File 'lib/core/path-element.rb', line 6

def control_points
  @control_points
end

#path_points ⇒ Object (readonly)

Do not directly instantiate this class



6
7
8
 
# File 'lib/core/path-element.rb', line 6

def path_points
  @path_points
end

Instance Method Details

#[](control_id) ⇒ Object 



42
43
44
 
# File 'lib/core/path-element.rb', line 42

def [](control_id)
  get_control control_id
end

#[]=(control_id, loc) ⇒ Object 



30
31
32
 
# File 'lib/core/path-element.rb', line 30

def []=(control_id, loc)
  set_control control_id, loc
end

#generate ⇒ Object 



17
18
19
 
# File 'lib/core/path-element.rb', line 17

def generate
  @path_points = @control_points.values.collect {|point| point.loc}
end

#get_control(control_id) ⇒ Object 



34
35
36
37
38
39
40
 
# File 'lib/core/path-element.rb', line 34

def get_control(control_id)
  unless control_id.class == Symbol 
    raise 'control_id must be a symbol' 
  end
  
  return @control_points[control_id]
end

#set_control(control_id, loc) ⇒ Object 



21
22
23
24
25
26
27
28
 
# File 'lib/core/path-element.rb', line 21

def set_control(control_id, loc)
  unless control_id.class == Symbol 
    raise 'control_id must be a symbol' 
  end
  
  @control_points[control_id].move_to location
  generate
end