Module: Proj::Api

Extended by:
FFI::Library
Defined in:
lib/api/api.rb,
lib/api/api_4_9.rb,
lib/api/api_5_0.rb,
lib/api/api_5_1.rb,
lib/api/api_5_2.rb,
lib/api/api_6_0.rb,
lib/api/api_6_1.rb,
lib/api/api_6_2.rb

Defined Under Namespace

Classes: P5_FACTORS, PJ_COORD, PJ_ELLPS, PJ_ENU, PJ_GEOD, PJ_GRID_INFO, PJ_INFO, PJ_INIT_INFO, PJ_LIST, PJ_LP, PJ_LPZ, PJ_LPZT, PJ_OPK, PJ_PRIME_MERIDIANS, PJ_PROJ_INFO, PJ_UNITS, PJ_UV, PJ_UVW, PJ_UVWT, PJ_XY, PJ_XYZ, PJ_XYZT, ProjUV

Constant Summary collapse

PROJ_VERSION = 
Gem::Version.new(version)
ProjXY = 
ProjUV
ProjLP = 
ProjUV
PJ_OPERATIONS = 
PJ_LIST

Class Method Summary collapse

Class Method Details

.library_versions ⇒ Object 



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# File 'lib/api/api.rb', line 8

def self.library_versions
  [17, # 6.2 *and* 6.1
   15, # 6.0
   14, # 5.2
   13, # 5.0
   12, # 4.9
   11] # 4.9
end

.linux_search_paths ⇒ Object 



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# File 'lib/api/api.rb', line 37

def self.linux_search_paths
  self.library_versions.map do |version|
    "libproj.so.#{version}"
  end
end

.macos_search_paths ⇒ Object 



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# File 'lib/api/api.rb', line 43

def self.macos_search_paths
  # Mac Ports
  paths1 = self.library_versions.map do |version|
    case version
      when 15..17
        "/opt/local/lib/proj6/lib/libproj.#{version}.dylib"
      when 13..14
        "/opt/local/lib/proj5/lib/libproj.#{version}.dylib"
      when 11..12
        "/opt/local/lib/proj49/lib/libproj.#{version}.dylib"
    end
  end

  # Mac HomeBrew
  paths2 = self.library_versions.map do |version|
    "/usr/local/lib/libproj.#{version}.dylib"
  end

  paths1 + paths2
end

.proj_todeg(value) ⇒ Object 



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# File 'lib/api/api.rb', line 87

def Api.proj_todeg(value)
  value * 57.295779513082321
end

.proj_torad(value) ⇒ Object 



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# File 'lib/api/api.rb', line 83

def Api.proj_torad(value)
  value * 0.017453292519943296
end

.search_paths ⇒ Object 



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# File 'lib/api/api.rb', line 17

def self.search_paths
  result = case RbConfig::CONFIG['host_os']
             when /mswin|msys|mingw|cygwin|bccwin|wince|emc/
               self.windows_search_paths
             when /darwin|mac os/
               self.macos_search_paths
             else
               self.linux_search_paths
           end

  result << 'libproj'
  result
end

.windows_search_paths ⇒ Object 



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# File 'lib/api/api.rb', line 31

def self.windows_search_paths
  self.library_versions.map do |version|
    "libproj-#{version}"
  end
end