Module: R::GIF

Defined in:
lib/rbbt/util/R/plot.rb

Class Method Summary collapse

Class Method Details

.eog(data, frames = nil, script = nil, width = nil, height = nil, options = {}) ⇒ Object 



328
329
330
331
332
333
 
# File 'lib/rbbt/util/R/plot.rb', line 328

def self.eog(data, frames = nil, script = nil, width = nil, height = nil, options = {})
  TmpFile.with_file :extension => 'gif' do |filename|
    ggplot(filename, data, frames, script, width, height, options)
    `eog #{ filename }`
  end
end

.eog_plot(data, frames = nil, script = nil, width = nil, height = nil, options = {}) ⇒ Object 



335
336
337
338
339
340
 
# File 'lib/rbbt/util/R/plot.rb', line 335

def self.eog_plot(data, frames = nil, script = nil, width = nil, height = nil, options = {})
  TmpFile.with_file :extension => 'gif' do |filename|
    plot(filename, data, frames, script, width, height, options)
    `eog #{ filename }`
  end
end

.ggplot(filename, data, frames = nil, script = nil, width = nil, height = nil, options = {}) ⇒ Object 



343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
 
# File 'lib/rbbt/util/R/plot.rb', line 343

def self.ggplot(filename, data, frames = nil, script = nil, width = nil, height = nil, options = {})
  width ||= 3
  height ||= 3
  values = []

  sources = [:plot, options[:source]].flatten.compact

  data.each do |k,v|
    v = Array === v ? v : [v]
    next if v == "NA" or v.nil? or v.include? "NA" or v.include? nil
    values = v
    break
  end
  values = [values] unless Array === values
  field_classes = values.collect do |v| 
    case v
    when FalseClass, TrueClass
      "'logical'"
    when Numeric
      "'numeric'"
    when String
      if v.strip =~ /^[-+]?[\d\.]+$/
        "'numeric'"
      else
        "'character'"
      end
    when Symbol
      "'factor'"
    else
      ":NA"
    end
  end
  options[:R_open] ||= "colClasses=c('character'," + field_classes * ", " + ')'

  delay = options[:delay]
  delay = 10 if delay.nil?

  frames = data.keys if frames.nil?
  frames = (1..frames).to_a if Integer === frames

  data.R <<-EOF, :plot, options
frames = #{R.ruby2R frames}
for (frame in seq(1, length(frames))){
  frame.value = frames[frame]
  frame.str = sprintf("%06d", frame)
  plot = { #{script} }

  ggsave(paste('#{filename}', frame.str, 'tmp.png', sep="."), plot, width = #{R.ruby2R width}, height = #{R.ruby2R height})
}
data = NULL
  EOF

  CMD.cmd("convert #{filename}.*.tmp.png -set delay #{delay} -loop 0 #{filename} && rm #{filename}.*.tmp.png")
end

.plot(filename, data = nil, frames = nil, script = nil, width = nil, height = nil, options = {}, &block) ⇒ Object 



398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
 
# File 'lib/rbbt/util/R/plot.rb', line 398

def self.plot(filename, data = nil, frames = nil, script = nil, width = nil, height = nil, options = {}, &block)
  width ||= 600
  height ||= 600
  values = []

  script ||= ""
  if block_given?
    s = StringIO.new
    class << s
      def method_missing(name, *args)
        name = name.to_s
        if name[-1] == '='
          arg = args.first
          value = if String === arg
                    arg
                  else
                    R.ruby2R arg
                  end
          add("" << name[0..-2] << "=" << value)
        else
          args_strs = []
          args.each do |arg|
            value = if String === arg
                      arg
                    else
                      R.ruby2R arg
                    end
            args_strs << value
          end
          add("" << name << "(" << args_strs * ", " << ")")
        end
      end

      def add(line)
        self.write line << "\n"
      end
    end
    block.call(s)
    s.rewind
    script << "\n" << s.read
  end
  sources = [:plot, options[:source]].flatten.compact
  
  delay = options[:delay]
  delay = 10 if delay.nil?

  frames = data.keys if frames.nil?
  frames = (1..frames).to_a if Integer === frames

  if data
    data.each do |k,v|
      v = Array === v ? v : [v]
      next if v == "NA" or v.nil? or v.include? "NA" or v.include? nil
      values = v
      break
    end 

    values = [values] unless values.nil? or Array === values

    field_classes = values.collect do |v| 
      case v
      when FalseClass, TrueClass
        "'logical'"
      when Numeric
        "'numeric'"
      when String
        if v.strip =~ /^[-+]?[\d\.]+$/
          "'numeric'"
        else
          "'character'"
        end
      when Symbol
        "'factor'"
      else
        ":NA"
      end
    end

    options[:R_open] ||= "colClasses=c('character'," + field_classes * ", " + ')' if field_classes.any?

    data.R <<-EOF, :plot, options
frames = #{R.ruby2R frames}
for (frame in seq(1, length(frames))){
  frame.value = frames[frame]
  frame.str = sprintf("%06d", frame)
  plot = { #{script} }

  png(paste('#{filename}', frame.str, 'tmp.png', sep="."), #{ width }, #{ height })
  { #{script} }
  dev.off()
}
data = NULL
    EOF
  else
    R.run <<-EOF, :plot, options
frames = #{R.ruby2R frames}
for (frame in seq(1, length(frames))){
  frame.value = frames[frame]
  frame.str = sprintf("%06d", frame)
  png(paste('#{filename}', frame.str, 'tmp.png', sep="."), #{ width }, #{ height })
  { #{script} }
  dev.off()
}
    EOF
  end
  CMD.cmd("convert #{filename}.*.tmp.png -set delay #{delay} -loop 0 #{filename} && rm #{filename}.*.tmp.png")
end