Class: Charta::Factory::SridProvider

Inherits:
Object
  • Object
show all
Defined in:
lib/charta/factory/srid_provider.rb

Constant Summary collapse

SRS = 
{
  WGS84: 4326,
  CRS84: 4326,
  RGF93: 2143
}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(srs) ⇒ SridProvider

Returns a new instance of SridProvider.



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# File 'lib/charta/factory/srid_provider.rb', line 18

def initialize(srs)
  @srs = srs
end

Class Method Details

.build ⇒ Object 



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# File 'lib/charta/factory/srid_provider.rb', line 13

def build
  new(SRS)
end

Instance Method Details

#find(srname_or_srid) ⇒ Object 



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# File 'lib/charta/factory/srid_provider.rb', line 22

def find(srname_or_srid)
  if srname_or_srid.to_s =~ /\Aurn:ogc:def:crs:.*\z/
    x = srname_or_srid.split(':').last.upcase.to_sym
    @srs[x] || x
  elsif srname_or_srid.to_s =~ /\AEPSG::?(\d{4,5})\z/
    srname_or_srid.split(':').last
  elsif srname_or_srid.to_s =~ /\A\d+\z/
    srname_or_srid.to_i
  else
    @srs[srname_or_srid] || srname_or_srid
  end
end