Module: MapType

Includes:
RecordType
Defined in:
lib/enhanced_marc/map_type.rb

Overview

Methods for Map records

Instance Method Summary collapse

Instance Method Details

#cartographic_type(human_readable = false) ⇒ Object 



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# File 'lib/enhanced_marc/map_type.rb', line 5

def cartographic_type(human_readable = false)
  crtp_map = { 'a' => 'Map', 'b' => 'Map series', 'c' => 'Map serial',
               'd' => 'Globe', 'e' => 'Atlas', 'f' => 'Supplement',
               'g' => 'Bound as part of another work', 'u' => 'Unknown',
               'z' => 'Other' }
  human_readable = crtp_map if human_readable
  field_parser({ match: 'MAP', start: 25, end:1 },
               { match: /[ef]{1}/, start: 8, end: 1 }, human_readable)
end

#projection(human_readable = false) ⇒ Object 



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# File 'lib/enhanced_marc/map_type.rb', line 47

def projection(human_readable=false)
  proj_map = {'Azimuthal'=>{'aa'=>'Aitoff','ab'=>'Gnomic','ac'=>"Lambert's equal area",
                            'ad'=>'Orthographic','ae'=>'Azithumal equidistant', 'af'=>'Stereographic',
                            'ag'=>'General vertical near-sided','am'=>'Modified stereographic for Alaska',
                            'an'=>'Chamberlin trimetric','ap'=>'Polar stereographic','au'=>'Unknown','az'=>'Other'},
              'Cylindrical'=>{'ba'=>'Gall','bb'=>"Goode's homolographic",'bc'=>"Lambert's equal area",
                              'bd'=>'Mercator','be'=>'Miller','bf'=>'Mollweide','bg'=>'Sinusoidal',
                              'bh'=>'Transverse Mercator','bi'=>'Gauss-Kruger','bj'=>'Equirectangular',
                              'bo'=>'Oblique Mercator','br'=>'Robinson','bs'=>'Space oblique Mercator',
                              'bu'=>'Unknown','bz'=>'Other'
                              },
              'Conic'=>{'ca'=>"Alber's equal area",'cb'=>'Bonne','cc'=>"Lambert's",'ce'=>'Equidistant conic',
                        'cp'=>'Polyconic','cu'=>'Unknown','cz'=>'Other'
                        },
              'Other'=>{'da'=>'Armadillo','db'=>'Butterfly','dc'=>'Eckert','dd'=>"Goode's homolosine",
                        'de'=>"Miller's bipolar oblique conformal conic",'df'=>'Van Der Grinten',
                        'dg'=>'Dymaxion','dh'=>'Cordiform','dl'=>'Lambert conformal','zz'=>'Other'
              }
  }
  if @record_type == "MAP"
    unless self['008'].value[22,2] == '  '
      if human_readable
        proj_map.each_key { | general |
          next unless proj_map[general].keys.index(self['008'].value[22,2])
          return [general,proj_map[general][self['008'].value[22,2]]]
        }
      else
        return self['008'].value[22,2]
      end
    end
  end
  @fields.find_all {|f| ('006') === f.tag}.each { | fxd_fld |
    next unless fxd_fld.value[0,1].match(/[ef]{1}/)
    unless fxd_fld.value[5,2] == '  '
      if human_readable
        proj_map.each_key { | general |
          next unless proj_map[general].keys.index(fxd_fld.value[5,2])
          return [general,proj_map[general][fxd_fld.value[5,2]]]
        }
      else
        return fxd_fld.value[5,2]
      end
    end
  }
  false
end

#relief(human_readable = false) ⇒ Object 



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# File 'lib/enhanced_marc/map_type.rb', line 15

def relief(human_readable = false)
  relief_map = {'a'=>'Contours', 'b'=>'Shading', 'c'=>'Grading and bathymetric tints',
    'd'=>'Hachures', 'e'=>'Bathymetry, soundings', 'f'=>'Form lines', 'g'=>'Spot heights',
    'h'=>'Color', 'i'=>'Pictorially', 'j'=>'Land forms', 'k'=>'Bathymetry, isolines',
    'm'=>'Rock drawings', 'z'=>'Other'
    }
  contents = []
  if self.record_type == 'MAP'
    self['008'].value[18,4].split(//).each { | char |
      next if char == " "
      if human_readable
        contents << relief_map[char]
      else
        contents << char
      end
    }
  end
  @fields.find_all {|f| ('006') === f.tag}.each { | fxd_fld |
    next unless fxd_fld.value[0,1].match(/[ef]{1}/)
    fxd_fld.value[1,4].split(//).each { | char |
      next if char == " "
      if human_readable
        contents << relief_map[char]
      else
        contents << char
      end
    }
  }
  return false if contents.empty?
  contents
end

#special_format(human_readable = false) ⇒ Object 



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# File 'lib/enhanced_marc/map_type.rb', line 94

def special_format(human_readable=false)
  spfm_map = {'a'=>'Blueprint photocopy','b'=>'Other photocopy','c'=>'Negative photocopy',
              'd'=>'Film negative','f'=>'Facsimile','g'=>'Relief model','h'=>'Rare (pre-1800)',
              'e'=>'Manuscript','j'=>'Picture/post card','k'=>'Calendar','l'=>'Puzzle',
              'm'=>'Braille, tactile','n'=>'Game','o'=>'Wall map','p'=>'Playing cards',
              'q'=>'Loose-leaf','z'=>'Other'}
  human_readable = spfm_map if human_readable
  return self.field_parser({:match=>'MAP', :start=>33,:end=>2}, {:match=>/[ef]{1}/, :start=>16,:end=>2}, human_readable)
end