Class: JennCad::Features::Climb

Inherits:
Feature show all
Defined in:
lib/jenncad/features/climb.rb

Instance Attribute Summary

Attributes inherited from Thing

#anchors, #angle, #calc_h, #calc_x, #calc_y, #calc_z, #csize, #diameter, #fn, #name, #opts, #parent, #parts, #pos, #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(opts, block) ⇒ Climb

Returns a new instance of Climb.



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# File 'lib/jenncad/features/climb.rb', line 3

def initialize(opts, block)
  $log.warn "DEPRECATED feature: climb. Please use x.of (multiples_of example)"

  @opts = {
    offset: :auto,
    step: nil,
    steps: nil,
    bottom: nil,
    top: nil,
    z: nil,
  }.deep_merge!(opts)
  if @opts[:step].nil? && @opts[:steps].nil?
    raise "please define at least one of :step or :steps for climb"
  end
  super(@opts)
  @block = block
end

Instance Method Details

#climb_from_bottom(offset, step, n) ⇒ Object 



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# File 'lib/jenncad/features/climb.rb', line 52

def climb_from_bottom(offset, step, n)
  n.times.map{ |i| @block.yield.mz(offset+step*i) }.union
end

#climb_from_top(z, offset, step, n) ⇒ Object 



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# File 'lib/jenncad/features/climb.rb', line 56

def climb_from_top(z, offset, step, n)
  n.times.map{ |i| @block.yield.mz(z-offset-step*i) }.union
end

#get_offset(z) ⇒ Object 



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# File 'lib/jenncad/features/climb.rb', line 40

def get_offset(z)
  case offset = @opts[:offset]
  when :auto
    step = get_step(z)
    ((z % step) + step) / 2.0
  when nil, 0, 0.0
    0.0
  else
    offset
  end
end

#get_step(z) ⇒ Object 



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# File 'lib/jenncad/features/climb.rb', line 30

def get_step(z)
  case step = @opts[:step]
  when nil, :auto, 0, 0.0
    steps = @opts[:steps]
    (z  / steps).floor
  else
    step.to_d
  end
end

#to_openscad ⇒ Object 



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# File 'lib/jenncad/features/climb.rb', line 60

def to_openscad
  ref_z = z_or_referenced
  step = get_step(ref_z)
  steps, top, bottom = @opts.values_at(:steps, :top, :bottom)

  offset = get_offset(ref_z)

  lo = (ref_z-offset*2).to_d % step.to_d
  unless lo.to_d == 0.0
    puts "[Warning]: climb has leftover offset #{lo}"
  end

  if steps
    top = steps
    bottom = steps
  end

  unless top or bottom
    climb_from_bottom(offset, step, ((ref_z-offset*2) / step).floor + 1 )
  else
    res = nil
    if top
      res += climb_from_top(ref_z, offset, step, top)
    end
    if bottom
      res += climb_from_bottom(offset, step, bottom)
    end
    res
  end
end

#z_or_referenced ⇒ Object 



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# File 'lib/jenncad/features/climb.rb', line 21

def z_or_referenced
  case z = @opts[:z]
  when nil
    referenced_z.z
  else
    z
  end
end