Module: Map::Gdal::Base

Included in:
ColorizeService, ConstrastStretchService, CropService, GdalInfoService, GridService, MergeService, NdviService, Ogr2ogrService, OgriInfoService, PolygonizeService, RasterService, RgbService, TilesService, TranslateService, WarpService
Defined in:
lib/map/gdal/base.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#files_to_clean ⇒ Object (readonly)

Returns the value of attribute files_to_clean.



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# File 'lib/map/gdal/base.rb', line 4

def files_to_clean
  @files_to_clean
end

Instance Method Details

#add_to_clean(path) ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 34

def add_to_clean(path)
  @files_to_clean ||= []
  @files_to_clean << path
end

#clean ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 28

def clean
  @files_to_clean.to_a.compact.each do |path|
    FileUtils.rm_rf(path)
  end
end

#gdal_running?(times = nil) ⇒ Boolean

verifica se gdal está rodando checa 3 vezes fazendo um pequeno sleep entre as vezes para garantia

Returns:

  • (Boolean) 


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# File 'lib/map/gdal/base.rb', line 8

def gdal_running?(times = nil)
  `ps aux | grep gdal | grep -v grep`
  if $?.success?
    true
  elsif times.to_i < 3
    sleep 0.1
    gdal_running?(times.to_i + 1)
  end
end

#get_file_name_with_path(file) ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 62

def get_file_name_with_path(file)
  file_name = File.basename(file, '.*' )
  File.join(File.dirname(file), "#{file_name}")
end

#get_layer_name ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 18

def get_layer_name
  Map::Gdal::OgriInfoService.new(@file).layer_name
end

#get_path_to_temp_file(prefix, extension, file_id = "#{Time.current.to_i}-#{(rand * 1_000).to_i}") ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 39

def get_path_to_temp_file(prefix, extension, file_id="#{Time.current.to_i}-#{(rand * 1_000).to_i}")
  tmp_file("#{prefix}-#{file_id}.#{extension}")
end

#options_to_command_line(options, reject = []) ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 43

def options_to_command_line(options, reject = [])
  reject = [reject] unless reject.is_a?(Array)

  options.map do |key, value|
    "-#{key} #{value}" unless reject.to_a.include?(key)
  end.compact.join(' ')
end

#run_command(command) ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 51

def run_command(command)
  out = `#{command} 2>&1`
  raise "Falha ao rodar comando [$ #{command}]\n[#{out}]" unless $?.success?
  out
end

#store_kml ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 22

def store_kml
  @file = get_path_to_temp_file('kml', 'kml')
  add_to_clean(@file)
  IO.write(@file, @kml)
end

#tmp_file(file_name) ⇒ Object 



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# File 'lib/map/gdal/base.rb', line 57

def tmp_file(file_name)
  FileUtils.mkdir_p(File.join(Dir.pwd, 'tmp'))
  File.join(Dir.pwd, 'tmp', file_name)
end