Class: JennCad::Path

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

Instance Attribute Summary collapse

Attributes inherited from Thing

#anchors, #calc_h, #calc_x, #calc_y, #calc_z, #csize, #diameter, #fn, #name, #opts, #parent, #parts, #shape, #sits_on, #transformations, #x, #y

Instance Method Summary collapse

Methods inherited from Thing

#anchor, #at, #auto_color, #auto_color!, #auto_extrude, #calculate_center_rotation, #calculated_h, #children_list, #color, #color_or_fallback, #color_parse, #copy_anchor, #copy_anchors, #cut_to, #dbg, #debug?, #find_calculated_h, #fixate, #flip, #flipc, #get_children, #get_contents, #ghost, #has_explicit_color?, #hide, #hl, #inherit_color, #init, #is_2d?, #is_3d?, #mhx, #mhy, #mhz, #mirror, #mix, #miy, #miz, #modify_values, #modify_values!, #move, #movea, #moveai, #moveh, #movei, #multmatrix, #mx, #my, #mz, #on_top_of, #only, #only_color?, #openscad, #openscad_modifier, #option, #parse_xyz_shortcuts, #radians, #referenced_z, #reset, #reset_last_move, #rotate, #rotate_around, #rx, #ry, #rz, #scale, #set_anchor, #set_anchor_from, #set_auto_color, #set_auto_color_for_children, #set_flag, #set_heights_for_auto_extrude, #set_option, #set_parent, #skew, #to_mod, #top_of, #transform, #unset_flag, #z, #z=, #z_margin

Constructor Details

#initialize(args) ⇒ Path

Returns a new instance of Path.



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# File 'lib/jenncad/features/path.rb', line 195

def initialize(args)
  @thing = store_thing_from(args[:part])
  @part = new_thing
  @angle = args[:a] || 0
  @current_angle = args[:a] || 0
  @direction = 0
  @name = args[:name] || "Path"
  @calc_h = @part.z
  @dir = 0
  @lpos = {x: 0, y: 0, l: 0, a: 0}
  @coords = []
  @steps = []
  @parts = [new_thing]

  super(args)
end

Instance Attribute Details

#angle ⇒ Object

Returns the value of attribute angle.



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# File 'lib/jenncad/features/path.rb', line 194

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 194

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 194

def direction
  @direction
end

#elements ⇒ Object

Returns the value of attribute elements.



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# File 'lib/jenncad/features/path.rb', line 194

def elements
  @elements
end

#lpos ⇒ Object

Returns the value of attribute lpos.



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# File 'lib/jenncad/features/path.rb', line 194

def lpos
  @lpos
end

#thing ⇒ Object

Returns the value of attribute thing.



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# File 'lib/jenncad/features/path.rb', line 194

def thing
  @thing
end

Instance Method Details

#add_lpos(lpos) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 307

def add_lpos(lpos)
  #puts "x: #{lpos[:x]}, y: #{lpos[:y]}"
  [:x, :y].each do |key|
    @lpos[key] += lpos[key]
  end
  @coords << lpos
end

#assemble ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 324

def assemble
  @steps.each_with_index do |step, i|
    if @steps[i+1] && @steps[i+1].class == Line && step.class == RoundCorner
      step.set_angles(@steps[i+1].current_angle, @steps[i+1].angle, @steps[i+1].direction)
    end
  end
  res = nil
  @steps.each do |step|
    if step.kind_of? Transformation
      res.transformations << step
    else
      res += step.part
    end
  end
  set_heights_for_auto_extrude([res], self)
  res.transformations << @transformations
  Aggregation.new(@name, res)
end

#center ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 319

def center
  @steps << Move.new(x: @lpos[:x] * -1, y: @lpos[:y] * -1)
  self
end

#corner(args) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 222

def corner(args)
  od = args[:od]
  id = args[:id]
  if id.nil? && od
    id = new_thing.d
    #puts "od: #{od} , thing d #{new_thing.d} new id #{id}"
  end
  if od.nil? && id
    od = id + new_thing.d
  end
  rc = RoundCorner.new(
    start_point: { x: @lpos[:x], y: @lpos[:y] },
    end_point: { x: @lpos[:x], y: @lpos[:y] },
    od: od,
    id: id,
    ccw: args[:ccw],
    from: args[:from],
    to: args[:to],
    a: args[:a],
    direction: @direction,
    thing: thing,
  )

  _, ox, oy, x, y = rc.positions
  @lpos[:x] += x + ox
  @lpos[:y] += y + oy

  @steps << rc
end

#line(args) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 252

def line(args)
  if args[:l]
    args[:a] ||= 0
    if args[:a] > 0
      @direction = 1
    elsif args[:a] < 0
      @direction = -1
    else
      @direction = 0
    end

    @angle += args[:a]
    @current_angle = args[:a]

    l = args[:l]
    gamma = 90
    alpha = @angle
    beta = gamma - alpha

    case
    when alpha == 90, alpha == -270
      x = l
      y = 0
    when alpha == 180, alpha == -180
      x = 0
      y = -l
    when alpha == 270, alpha == -90
      x = -l
      y = 0
    when alpha == 360, alpha == 0
      x = 0
      y = l
    else
      y = l/Math::sin(radians(gamma)) * Math::sin(radians(beta))
      x = y/Math::sin(radians(beta)) * Math::sin(radians(alpha))
    end
  elsif args[:x] || args[:y]
    x = args[:x] || 0
    y = args[:y] || 0

    dx = @lpos[:x] - x
    dy = @lpos[:y] - y

    l = Math::sqrt(dx*dx + dy*dy)
    alpha = Math::atan2(x, y)*180/Math::PI
  else
    puts "Error in line(): Please specify either :l, :x or :y"
    return
  end

  @steps << Line.new(start_point: { x: @lpos[:x], y: @lpos[:y] }, end_point: { x: @lpos[:x] + x, y: @lpos[:y] + y  }, angle: @angle, current_angle: @current_angle, direction: @direction, l: l, thing: thing)

  add_lpos({x: x, y: y})
end

#new_thing ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 218

def new_thing
  Marshal.load(@thing)
end

#pos ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 315

def pos
  [@lpos[:x], @lpos[:y]]
end

#store_thing_from(thing) ⇒ Object 



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# File 'lib/jenncad/features/path.rb', line 212

def store_thing_from(thing)
  r = Marshal.load(Marshal.dump(thing)) # make sure we don't edit the object in memory
  r.transformations = []
  Marshal.dump(r)
end