Class: Pulo::Trapezoid

Inherits:
Object
  • Object
show all
Includes:
Figure2D
Defined in:
lib/pulo/figure/figure2d.rb

Overview

isoscelese only

Instance Attribute Summary collapse

Attributes included from Figure2D

#area, #perimeter

Instance Method Summary collapse

Methods included from Figure2D

#*

Methods included from Quantity_Checker

#quantity_check

Constructor Details

#initialize(angle: nil, height: nil, base: nil, area: nil, top: nil) ⇒ Trapezoid 



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# File 'lib/pulo/figure/figure2d.rb', line 213

def initialize(angle: nil,height: nil,base: nil, area: nil,top: nil)
  quantity_check [angle,Angle] ,[height,Length] , [base,Length] , [top,Length], [area,Area]
  raise 'Need more arguments for trapezoid' unless ((angle and height and (base or top) or (base and top and height) or (area and base and top)))
  if angle and height and (base or top)
    @angle=angle; @height=height
    @side_triangle=Triangle.new(angles: [@angle,nil,Angle.pi/2], lengths: [@height,nil,nil])
    @side=@side_triangle.lengths[2]
    if base
      @base=base; @top=@base-@side_triangle.lengths[0]*2
    else #top

      @top=top; @base=@top+@side_triangle.lengths[0]*2
    end
    @area=(@base+@top)/2*@height
  elsif base and top and height
    @height=height;@base=base;@top=top
    @side_triangle=Triangle.new(lengths: [@height,(@base-@top)/2,nil],angles: [Angle.pi/2])
    @side=@side_triangle.lengths[2]
    @area=(@base+@top)/2*@height
  elsif area and base and top
    @area=area; @base=base; @top=top
    @height=(@area*2)/(@base+@top)
    @side_triangle=Triangle.new(angles: [Angle.pi/2], lengths: [@height,(@base-@top)/2])
    @side=@side_triangle.lengths[2]
  elsif area and angle and base
    #TODO: area and angle and base


    #@angle=angle; @area=area; @base=base

    #@height=(Math.sqrt((@base**2)+(4*Math.tan(@angle)*@area))-@base)/(2*Math.tan(@angle))

    #@side_triangle=Triangle.new(angles: [@angle,nil,Angle.pi/2], lengths: [@height,nil,nil])

    #@side=@side_triangle.lengths[2]

    #@top=@base+@side_triangle.lengths[0]*2

  end
  @perimeter=@base+@top+(@side*2)
end

Instance Attribute Details

#angle ⇒ Object (readonly)

Returns the value of attribute angle.



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# File 'lib/pulo/figure/figure2d.rb', line 209

def angle
  @angle
end

#base ⇒ Object (readonly)

Returns the value of attribute base.



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# File 'lib/pulo/figure/figure2d.rb', line 209

def base
  @base
end

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/pulo/figure/figure2d.rb', line 209

def height
  @height
end

#side ⇒ Object (readonly)

Returns the value of attribute side.



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# File 'lib/pulo/figure/figure2d.rb', line 209

def side
  @side
end

#side_triangle ⇒ Object (readonly)

Returns the value of attribute side_triangle.



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# File 'lib/pulo/figure/figure2d.rb', line 209

def side_triangle
  @side_triangle
end

#top ⇒ Object (readonly)

Returns the value of attribute top.



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# File 'lib/pulo/figure/figure2d.rb', line 209

def top
  @top
end

Instance Method Details

#extrusion_figure ⇒ Object 



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# File 'lib/pulo/figure/figure2d.rb', line 210

def extrusion_figure
  TrapezoidalPrism
end