Class: JennCad::Line

Inherits:
Object
  • Object
show all
Defined in:
lib/jenncad/features/path.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Line

Returns a new instance of Line.



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# File 'lib/jenncad/features/path.rb', line 140

def initialize(args)
  @start_point = args[:start_point]
  @end_point = args[:end_point]
  @angle = args[:angle]
  @current_angle = args[:current_angle]
  @direction = args[:direction]
  @l = args[:l]
  @thing = args[:thing]
end

Instance Attribute Details

#angle ⇒ Object

Returns the value of attribute angle.



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# File 'lib/jenncad/features/path.rb', line 139

def angle
  @angle
end

#current_angle ⇒ Object

Returns the value of attribute current_angle.



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# File 'lib/jenncad/features/path.rb', line 139

def current_angle
  @current_angle
end

#direction ⇒ Object

Returns the value of attribute direction.



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# File 'lib/jenncad/features/path.rb', line 139

def direction
  @direction
end

#end_point ⇒ Object

Returns the value of attribute end_point.



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# File 'lib/jenncad/features/path.rb', line 139

def end_point
  @end_point
end

#l ⇒ Object

Returns the value of attribute l.



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# File 'lib/jenncad/features/path.rb', line 139

def l
  @l
end

#start_point ⇒ Object

Returns the value of attribute start_point.



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# File 'lib/jenncad/features/path.rb', line 139

def start_point
  @start_point
end

Instance Method Details

#ep_margin(margin) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 155

def ep_margin(margin)
  @end_point[:x] -= margin[:x]
  @end_point[:y] -= margin[:y]
end

#part ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 184

def part
  hull(
    Marshal.load(@thing).move(x: @start_point[:x], y: @start_point[:y]),
    Marshal.load(@thing).move(x: @end_point[:x], y: @end_point[:y])
  )
end

#shrink_ep(len) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 160

def shrink_ep(len)
  sx, sy = @start_point[:x], @start_point[:y]
  ex, ey = @end_point[:x], @end_point[:y]
  vx = ex-sx
  vy = ey-sy
  l = Math::sqrt(vx**2 + vy**2)
  factor = len / l
  @end_point[:x] -= vx * factor
  @end_point[:y] -= vy * factor
  #puts "#{sx} x #{sy}  => #{ex} x #{ey} , shrink #{factor} "
end

#shrink_sp(len) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 172

def shrink_sp(len)
  sx, sy = @start_point[:x], @start_point[:y]
  ex, ey = @end_point[:x], @end_point[:y]
  vx = ex-sx
  vy = ey-sy
  l = Math::sqrt(vx**2 + vy**2)
  factor = len / l
  @start_point[:x] -= vx * factor
  @start_point[:y] -= vy * factor
end

#sp_margin(margin) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 150

def sp_margin(margin)
  @start_point[:x] -= margin[:x]
  @start_point[:y] -= margin[:y]
end