Class: Sunniesnow::Tools::SvgPath::QuadraticBezier

Inherits:

PathSegment

• Object
• PathSegment
• Sunniesnow::Tools::SvgPath::QuadraticBezier

Includes:

Curve

Defined in:

lib/sscharter/tools/svg_path.rb

Instance Attribute Summary

• #begin ⇒ Vector2D readonly
• #control ⇒ Vector2D readonly
• #end ⇒ Vector2D readonly

Instance Method Summary

• #at(t) ⇒ Vector2D
• #initialize(begin_point, control_point, end_point, segments: 8) ⇒ QuadraticBezier constructor

  A new instance of QuadraticBezier.

Methods included from Curve

#at_length, #length

Methods inherited from PathSegment

#at_length, #length

Constructor Details

#initialize(begin_point, control_point, end_point, segments: 8) ⇒ QuadraticBezier

Returns a new instance of QuadraticBezier.

Parameters:

• begin_point (Vector2D)
• control_point (Vector2D)
• end_point (Vector2D)
• segments (Integer) (defaults to: 8)

# File 'lib/sscharter/tools/svg_path.rb', line 191

def initialize begin_point, control_point, end_point, segments: 8
	@begin = begin_point
	@control = control_point
	@end = end_point
	make_segments segments
end

Instance Attribute Details

#begin ⇒ Vector2D (readonly)

Returns:

• (Vector2D)

# File 'lib/sscharter/tools/svg_path.rb', line 179

def begin
  @begin
end

#control ⇒ Vector2D (readonly)

Returns:

• (Vector2D)

# File 'lib/sscharter/tools/svg_path.rb', line 182

def control
  @control
end

#end ⇒ Vector2D (readonly)

Returns:

• (Vector2D)

# File 'lib/sscharter/tools/svg_path.rb', line 185

def end
  @end
end

Instance Method Details

#at(t) ⇒ Vector2D

Parameters:

• t (Float)

Returns:

• (Vector2D)

# File 'lib/sscharter/tools/svg_path.rb', line 200

def at t
	@begin*(1-t)**2 + @control*(2*(1-t)*t) + @end*t**2
end