Class: GPSTool::Devices::RBT2300::DataParser

Inherits:
Object
  • Object
show all
Defined in:
lib/gpstool/devices/rbt-2300/data-parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(format = 0) ⇒ DataParser 



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# File 'lib/gpstool/devices/rbt-2300/data-parser.rb', line 22

def initialize(format = 0)
  @frames = []
  @floats = RBT2300::floats_for_format(format)
end

Instance Attribute Details

#frames ⇒ Object (readonly)

Returns the value of attribute frames.



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# File 'lib/gpstool/devices/rbt-2300/data-parser.rb', line 27

def frames
  @frames
end

Instance Method Details

#append_data(datas) ⇒ Object 



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# File 'lib/gpstool/devices/rbt-2300/data-parser.rb', line 29

def append_data(datas)
  sz = 4 + (@floats * 4)

  while datas.size >= sz
    # Pop buf off the front
    buf = datas[0...sz]
    datas = datas[sz..-1]

    #puts "Inspecting data: #{buf.inspect}"

    # Extract Date
    date = buf.unpack("CCCC")
    #puts "Extracted date: #{date.inspect}"
    bufo = buf[4..-1]

    # We need to extract IEEE floats
    buf = bufo.unpack("C*").reverse.pack("C*")
    numbers = buf.unpack("g" * @floats).reverse

    @frames << [date, numbers]
  end
end