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Contents
module GeoWorks
module Processors
module Raster
class Aig < GeoWorks::Processors::Raster::Base
include GeoWorks::Processors::Zip
def self.encode(path, options, output_file)
unzip(path, output_file) do |zip_path|
info = Info.new(zip_path)
options[:min_max] = info.min_max
case options[:label]
when :thumbnail
encode_raster(zip_path, output_file, options)
when :display_raster
reproject_raster(zip_path, output_file, options)
end
end
end
# Set of commands to run to reproject the AIG.
# @return [Array] set of command name symbols
def self.reproject_queue
[:warp, :translate]
end
# Executes a gdal_translate command to translate a raster
# format into a different format with a scaling options. This command
# scales the min and max values of the raster into the 0 to 255 range.
# Scale is inverted (255 to 0) to create a better visualization.
# @param in_path [String] file input path
# @param out_path [String] processor output file path
# @param options [Hash] creation options
def self.translate(in_path, out_path, options)
execute "gdal_translate -scale #{options[:min_max]} 255 0 "\
"-q -ot Byte -of GTiff \"#{in_path}\" #{out_path}"
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems