mirror of
https://github.com/red-data-tools/YouPlot.git
synced 2025-05-06 07:10:10 +08:00
100 lines
2.8 KiB
Ruby
100 lines
2.8 KiB
Ruby
require 'optparse'
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require 'csv'
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module Uplot
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class Command
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def initialize(argv)
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@params = {}
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@ptype = nil
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parse_options(argv)
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end
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def opt_new
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OptionParser.new do |opt|
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opt.on('-o', '--output', TrueClass) { |v| @output = v }
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opt.on('-d', '--delimiter', String) { |v| @delimiter = v }
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opt.on('-t', '--title VAL', String) { |v| @params[:title] = v }
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opt.on('-w', '--width VAL', Numeric) { |v| @params[:width] = v }
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opt.on('-h', '--height VAL', Numeric) { |v| @params[:height] = v }
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opt.on('-b', '--border VAL', Numeric) { |v| @params[:border] = v }
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opt.on('-m', '--margin VAL', Numeric) { |v| @params[:margin] = v }
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opt.on('-p', '--padding VAL', Numeric) { |v| @params[:padding] = v }
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opt.on('-l', '--labels', TrueClass) { |v| @params[:labels] = v }
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end
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end
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def parse_options(argv)
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main_parser = opt_new
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parsers = {}
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parsers['hist'] = opt_new.on('--nbins VAL', Numeric) { |v| @params[:nbins] = v }
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parsers['histogram'] = parsers['hist']
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parsers['line'] = opt_new
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parsers['lineplot'] = parsers['line']
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parsers['lines'] = opt_new
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main_parser.banner = <<~MSG
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Usage:\tuplot <command> [options]
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Command:\t#{parsers.keys.join(' ')}
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MSG
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main_parser.order!(argv)
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@ptype = argv.shift
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unless parsers.has_key?(@ptype)
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warn "unrecognized command '#{@ptype}'"
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exit 1
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end
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parser = parsers[@ptype]
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parser.parse!(argv) unless argv.empty?
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end
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def run
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# Sometimes the input file does not end with a newline code.
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while input = Kernel.gets(nil)
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input.freeze
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@delimiter ||= "\t"
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@headers ||= false
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data = CSV.parse(input, headers: @headers, col_sep: @delimiter)
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case @ptype
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when 'hist', 'histogram'
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histogram(data)
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when 'line', 'lineplot'
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line(data)
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when 'lines'
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lines(data)
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end.render($stderr)
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print input if @output
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end
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end
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def histogram(data)
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series = data.map { |r| r[0].to_f }
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UnicodePlot.histogram(series, **@params.compact)
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end
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def line(data)
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data = data.transpose
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if data.size == 1
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y = data[0]
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x = (1..y.size).to_a
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else
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x = data[0]
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y = data[1]
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end
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x = x.map(&:to_f)
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y = y.map(&:to_f)
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UnicodePlot.lineplot(x, y, **@params.compact)
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end
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def lines(_input_lines)
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data = data.transpose
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data.map { |series| series.map(&:to_f) }
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plot = UnicodePlot.lineplot(data[0], data[1], **@params.compact)
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2.upto(data.size - 1) do |i|
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UnicodePlot.lineplot!(plot, data[0], data[i])
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end
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plot
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end
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end
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end
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