Class: NumRu::GPhys::Grib::GribBMS

Inherits:
Object
  • Object
show all
Includes:
NumRu::GPhys::GribUtils
Defined in:
lib/numru/gphys/grib.rb

Overview

end definition of class GribGDS

Instance Method Summary collapse

Constructor Details

#initialize(sgm, str = nil) ⇒ GribBMS

Returns a new instance of GribBMS.



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# File 'lib/numru/gphys/grib.rb', line 971

def initialize(sgm,str=nil)
  @sgm = sgm
  @bms = str
end

Instance Method Details

#exist ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 975

def exist
  @bms = "\000"*3
  @sgm.is.update_total_length
end

#get ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 1015

def get
  @bms && uint2str(length,3)<<@bms
end

#has_map? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/numru/gphys/grib.rb', line 1000

def has_map?
  return nil if @bms.nil?
  return !map_number
end

#length ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 983

def length
  if @bms
    return @bms.length+3
  else
    return 0
  end
end

#map ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 1004

def map
  return nil unless has_map?
  return get_bits( @bms[3..-1], 1,1, 0,@bms.to_uint1, NArray::BYTE )
end

#map_number ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 990

def map_number
  nmap = @bms.to_uint2(1)
  nmap = false if nmap==0
  return nmap
end

#not_exist ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 979

def not_exist
  @bms = nil
  @sgm.is.update_total_length
end

#set_map(mask) ⇒ Object 



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# File 'lib/numru/gphys/grib.rb', line 1008

def set_map(mask)
  map,n = data2str(mask,1,1)
  @bms[0..0] = uint2str(n,1)
  @bms = @bms[0,3]<<map
  @sgm.is.update_total_length
  return true
end

#set_map_number(n) ⇒ Object Also known as: map_number= 



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# File 'lib/numru/gphys/grib.rb', line 995

def set_map_number(n)
  @bms[1..2] = uint2str(n,2)
  return n
end